/* ==========================================================================
   D-One - The AGI-Ready Platform
   Design System Ufficiale D-One Platform
   ========================================================================== */

/* Root Variables - D-One Official Design System */
:root {
    /* ========================================
       D-ONE BRAND COLORS (Official)
       ======================================== */
    --primary: #667eea;
    --primary-2: #764ba2;
    --primary-hover: #4f46e5;
    --primary-light: rgba(102, 126, 234, 0.1);
    --secondary: #ec4899;
    --accent: #8b5cf6;

    /* Semantic Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    /* ========================================
       GRADIENTS (D-One Official)
       ======================================== */
    --gradient-primary: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary) 0%, #f87171 100%);
    --gradient-hero: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
    --gradient-surface: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
    --gradient-text: linear-gradient(45deg, var(--primary), var(--primary-2));

    /* Glass effect (moderna) */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-bg-hover: rgba(255, 255, 255, 0.2);
    --hero-video-overlay: linear-gradient(135deg, rgba(17, 24, 39, 0.65) 0%, rgba(17, 24, 39, 0.35) 100%);
    --hero-text-primary: #ffffff;
    --hero-text-secondary: rgba(255, 255, 255, 0.8);
    --hero-surface: rgba(255, 255, 255, 0.12);
    --hero-surface-border: rgba(255, 255, 255, 0.22);

    /* ========================================
       GRAY SCALE
       ======================================== */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --gray-950: #030712;

    /* ========================================
       SECTION BACKGROUNDS (Design System)
       ======================================== */
    --section-bg-white: #ffffff;
    --section-bg-light: linear-gradient(135deg, #fafbfc 0%, #f8f9fa 100%);
    --section-bg-accent: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 100%);
    --section-bg-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --section-bg-darker: linear-gradient(135deg, #020617 0%, #0f172a 100%);

    /* ========================================
       TEXT & SURFACES
       ======================================== */
    --text-primary: var(--gray-800);
    --text-secondary: var(--gray-600);
    --text-muted: var(--gray-400);
    --bg-body: var(--gray-50);
    --bg-card: #ffffff;
    --bg-surface: var(--gray-50);
    --bg-surface-alt: var(--gray-100);
    --border-color: var(--gray-200);
    --border-color-hover: var(--gray-300);

    /* ========================================
       BORDER RADIUS (D-One Standard)
       ======================================== */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --radius-full: 9999px;

    /* ========================================
       SHADOWS (D-One Standard)
       ======================================== */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 10px 20px rgba(0,0,0,0.12);
    --shadow-lg: 0 20px 40px rgba(0,0,0,0.18);
    --shadow-xl: 0 25px 50px rgba(0,0,0,0.25);

    /* ========================================
       TYPOGRAPHY
       ======================================== */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* Font weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-black: 800;

    /* ========================================
       SPACING SCALE
       ======================================== */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;
    --space-24: 96px;

    /* ========================================
       TRANSITIONS
       ======================================== */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

    /* ========================================
       LAYOUT
       ======================================== */
    --container-max-width: 1400px;
    --navbar-height: 70px;
}

/* ==========================================================================
   Base Styles & Reset
   ========================================================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    margin-bottom: var(--space-4);
    color: var(--text-primary);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-2xl); }

p {
    margin-bottom: var(--space-4);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-hover);
}

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================================================
   Layout Utilities
   ========================================================================== */

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.section {
    padding: var(--space-24) 0;
    position: relative;
}

/* Section White - Default */
.section-white {
    background: var(--section-bg-white);
}

/* Section Light - Subtle gradient */
.section-light {
    background: var(--section-bg-light);
}

/* Section Accent - Brand colors subtle */
.section-accent {
    background: var(--section-bg-accent);
    position: relative;
}

.section-accent::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(102, 126, 234, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.section-accent .container {
    position: relative;
    z-index: 1;
}

/* Catalogo agenti: più spazio sotto prima della sezione Divisione AI */
.section-agents-browse {
    padding-bottom: clamp(3.5rem, 10vw, 6rem);
}

/* --------------------------------------------------------------------------
   Agents catalog — “Sovereign OS” dark strip (Stitch-inspired)
   -------------------------------------------------------------------------- */
.section-agents-sovereign {
    position: relative;
    background: #0a0b10;
    color: #e2e8f0;
    padding-top: clamp(3rem, 8vw, 5rem);
    overflow: hidden;
    border-top: 1px solid rgba(129, 236, 255, 0.12);
    border-bottom: 1px solid rgba(166, 140, 255, 0.15);
}

.section-agents-sovereign .agents-sovereign-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(ellipse 90% 60% at 10% -10%, rgba(129, 236, 255, 0.14), transparent 55%),
        radial-gradient(circle at 92% 40%, rgba(166, 140, 255, 0.12), transparent 45%),
        radial-gradient(circle at 50% 100%, rgba(99, 102, 241, 0.08), transparent 50%),
        linear-gradient(180deg, #0c0e12 0%, #11131f 42%, #0f172a 100%);
}

.section-agents-sovereign .agents-sovereign-inner {
    position: relative;
    z-index: 1;
}

.section-agents-sovereign .section-header {
    text-align: left;
    max-width: 40rem;
    margin-bottom: var(--space-10);
}

.agents-catalog-eyebrow {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: #5eead4;
    margin: 0 0 var(--space-4);
    text-shadow: 0 0 24px rgba(94, 234, 212, 0.25);
}

.agents-sovereign-title {
    color: #f8fafc;
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    line-height: 1.12;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.agents-title-gradient {
    display: block;
    background: linear-gradient(105deg, #5eead4 0%, #818cf8 45%, #c084fc 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.agents-sovereign-lead {
    color: #94a3b8 !important;
    font-size: var(--font-size-lg);
    line-height: 1.65;
    margin: 0;
}

.agents-filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    padding: var(--space-2);
    margin-bottom: var(--space-10);
    max-width: 52rem;
    background: rgba(34, 38, 43, 0.55);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(166, 140, 255, 0.22);
    border-radius: var(--radius-xl);
    box-shadow: 0 0 40px rgba(129, 236, 255, 0.06);
}

.agents-filter-pill {
    cursor: pointer;
    border: none;
    font-family: var(--font-sans);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-lg);
    color: #94a3b8;
    background: transparent;
    transition: background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
}

.agents-filter-pill:hover {
    color: #f1f5f9;
    background: rgba(255, 255, 255, 0.06);
}

.agents-filter-pill.is-active {
    color: #0f172a;
    background: linear-gradient(120deg, #5eead4, #67e8f9);
    box-shadow: 0 4px 20px rgba(94, 234, 212, 0.35);
}

.agents-filter-pill:focus-visible {
    outline: 2px solid #5eead4;
    outline-offset: 2px;
}

.agent-catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(272px, 1fr));
    gap: var(--space-6);
    transition: filter 0.35s ease;
}

.agent-catalog-grid.has-expanded .agent-catalog-card:not(.is-expanded) {
    filter: blur(2px);
    opacity: 0.55;
}

.agent-catalog-card {
    position: relative;
    text-align: left;
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    background: rgba(34, 38, 43, 0.58);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(129, 236, 255, 0.14);
    border-top: 1px solid rgba(129, 236, 255, 0.22);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    transition: transform 0.4s cubic-bezier(0.34, 1.45, 0.64, 1),
        box-shadow 0.35s ease,
        border-color 0.3s ease,
        filter 0.35s ease,
        opacity 0.35s ease;
    cursor: pointer;
    overflow: hidden;
}

.agent-catalog-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 7rem;
    height: 7rem;
    background: radial-gradient(circle, rgba(129, 236, 255, 0.08), transparent 65%);
    pointer-events: none;
    transition: opacity 0.35s ease;
}

.agent-catalog-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 48px rgba(108, 93, 211, 0.22);
    border-color: rgba(129, 236, 255, 0.35);
}

.agent-catalog-card.is-expanded {
    transform: translateY(-4px);
    border-color: rgba(192, 132, 252, 0.45);
    box-shadow: 0 28px 56px rgba(129, 236, 255, 0.12);
    z-index: 2;
    filter: none !important;
    opacity: 1 !important;
}

.agent-catalog-card.is-filter-hidden {
    display: none !important;
}

.agent-card-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-4);
    margin-bottom: var(--space-5);
}

.agent-card-icon-wrap {
    width: 3.25rem;
    height: 3.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    background: rgba(15, 23, 42, 0.65);
    border: 1px solid rgba(129, 236, 255, 0.25);
    color: #5eead4;
    box-shadow: 0 0 20px rgba(129, 236, 255, 0.12);
}

.agent-card-icon-wrap svg {
    width: 1.5rem;
    height: 1.5rem;
}

.agent-card-pill {
    font-size: 0.65rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #64748b;
    background: rgba(15, 23, 42, 0.85);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.agent-card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: #f8fafc;
    margin: 0 0 var(--space-3);
    line-height: 1.25;
}

.agent-card-hook {
    font-size: var(--font-size-sm);
    color: #94a3b8;
    line-height: 1.55;
    margin: 0 0 var(--space-4);
}

.agent-card-expand-label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: #818cf8;
}

.agent-catalog-card.is-expanded .agent-card-expand-label {
    color: #5eead4;
}

.agent-card-detail {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.55s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.35s ease, margin 0.35s ease;
    margin-top: 0;
}

.agent-catalog-card.is-expanded .agent-card-detail {
    max-height: 28rem;
    opacity: 1;
    margin-top: var(--space-6);
    padding-top: var(--space-6);
    border-top: 1px solid rgba(129, 236, 255, 0.15);
}

.agent-detail-lead {
    font-size: var(--font-size-sm);
    color: #cbd5e1;
    line-height: 1.6;
    margin: 0 0 var(--space-4);
}

.agent-detail-list {
    margin: 0 0 var(--space-4);
    padding-left: 1.2rem;
    font-size: var(--font-size-sm);
    color: #94a3b8;
    line-height: 1.55;
}

.agent-detail-list li {
    margin-bottom: 0.35rem;
}

.agent-detail-models {
    font-size: var(--font-size-xs);
    color: #a5b4fc;
    line-height: 1.5;
    margin: 0;
}

.agent-detail-models strong {
    color: #c4b5fd;
}

.agent-catalog-card--more {
    border-color: rgba(192, 132, 252, 0.25);
}

@media (max-width: 768px) {
    .agent-catalog-grid.has-expanded .agent-catalog-card:not(.is-expanded) {
        filter: none;
        opacity: 0.35;
    }
}

@media (prefers-reduced-motion: reduce) {
    .agent-catalog-card,
    .agent-card-detail {
        transition: none;
    }
}

/* Sezione Divisione AI — mesh + vetro coerente con brand */
.section-ai-division {
    padding-top: clamp(3rem, 9vw, 5.5rem);
    padding-bottom: var(--space-24);
    position: relative;
    background:
        radial-gradient(ellipse 85% 55% at 50% -25%, rgba(102, 126, 234, 0.16), transparent 58%),
        radial-gradient(circle at 100% 55%, rgba(118, 75, 162, 0.11), transparent 42%),
        linear-gradient(180deg, #f8fafc 0%, #eef2ff 38%, #f1f5f9 100%);
    border-top: 1px solid rgba(102, 126, 234, 0.1);
    border-bottom: 1px solid rgba(102, 126, 234, 0.08);
}

.section-ai-division .container {
    position: relative;
    z-index: 1;
}

/* Section Roadmap - subtle break from white sections (legacy hook) */
.section-roadmap-soft {
    background:
        radial-gradient(circle at 12% 22%, rgba(102, 126, 234, 0.14) 0%, rgba(102, 126, 234, 0) 45%),
        radial-gradient(circle at 88% 78%, rgba(118, 75, 162, 0.10) 0%, rgba(118, 75, 162, 0) 40%),
        linear-gradient(180deg, #f3f7ff 0%, #eef4ff 100%);
    border-top: 1px solid rgba(102, 126, 234, 0.18);
    border-bottom: 1px solid rgba(102, 126, 234, 0.14);
}

/* Roadmap premium — layered mesh, griglia orizzontale a 3 card */
.section-roadmap-premium {
    position: relative;
    overflow: hidden;
    border-top: 1px solid rgba(99, 102, 241, 0.2);
    border-bottom: 1px solid rgba(34, 211, 238, 0.15);
    background: linear-gradient(165deg, #f8fafc 0%, #eef2ff 38%, #f0f9ff 100%);
}

.section-roadmap-premium .roadmap-premium-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(ellipse 55% 40% at 8% 20%, rgba(99, 102, 241, 0.18), transparent 55%),
        radial-gradient(circle at 92% 65%, rgba(34, 211, 238, 0.12), transparent 45%),
        radial-gradient(circle at 50% 100%, rgba(139, 92, 246, 0.08), transparent 50%);
}

.section-roadmap-premium .roadmap-premium-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.4;
    background-image:
        linear-gradient(rgba(99, 102, 241, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.06) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 15%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 15%, transparent 75%);
    animation: roadmap-mesh-drift 28s ease-in-out infinite alternate;
}

@keyframes roadmap-mesh-drift {
    from { transform: translate(0, 0); }
    to { transform: translate(-12px, 8px); }
}

.section-roadmap-premium .roadmap-premium-inner {
    position: relative;
    z-index: 1;
}

.section-roadmap-premium .roadmap-premium-header {
    text-align: center;
    max-width: 40rem;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.roadmap-premium-eyebrow {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: #6366f1;
    margin: 0 0 var(--space-3);
}

.roadmap-premium-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: var(--font-weight-bold);
    line-height: 1.15;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    margin: 0 0 var(--space-4);
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: baseline;
    gap: 0.35em;
}

.roadmap-premium-title-line {
    color: var(--text-primary);
}

.roadmap-premium-title-accent {
    background: linear-gradient(105deg, #6366f1 0%, #8b5cf6 45%, #06b6d4 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.roadmap-premium-lead {
    font-size: var(--font-size-lg);
    line-height: 1.65;
    color: var(--text-secondary);
    margin: 0;
}

/* Tre card affiancate (desktop); colonna su mobile */
.roadmap-cards-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    align-items: stretch;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

@media (min-width: 900px) {
    .roadmap-cards-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-5);
    }
}

.section-roadmap-premium .roadmap-phase.timeline-panel {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
}

.section-roadmap-premium .roadmap-phase .timeline-panel-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Immagine per ogni fase della timeline */
.timeline-panel-figure {
    margin: 0;
    position: relative;
    line-height: 0;
    background: rgba(15, 23, 42, 0.04);
}

.timeline-panel-img {
    width: 100%;
    height: auto;
    min-height: 120px;
    max-height: clamp(140px, 22vw, 200px);
    object-fit: cover;
    object-position: center;
    display: block;
}

@media (min-width: 900px) {
    .section-roadmap-premium .timeline-panel-img {
        max-height: clamp(130px, 16vw, 180px);
    }
}

.timeline-panel-caption {
    margin: 0;
    padding: var(--space-3) var(--space-5);
    font-size: var(--font-size-xs);
    line-height: 1.45;
    color: var(--text-secondary);
    background: rgba(248, 250, 252, 0.95);
    border-top: 1px solid rgba(99, 102, 241, 0.1);
}

.timeline-panel-body {
    padding: var(--space-8);
}

.section-roadmap-premium .roadmap-phase .timeline-panel-body {
    padding: var(--space-6);
}

/* Card glass roadmap (griglia orizzontale) */
.section-roadmap-premium .timeline-panel.roadmap-phase {
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(99, 102, 241, 0.12);
    padding: 0;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(15, 23, 42, 0.06);
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.3s ease;
}

.section-roadmap-premium .roadmap-phase.timeline-panel:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(99, 102, 241, 0.14);
    border-color: rgba(34, 211, 238, 0.28);
}

.section-roadmap-premium .roadmap-phase .timeline-title {
    font-size: var(--font-size-lg);
}

.section-roadmap-premium .roadmap-phase .timeline-list {
    flex: 1;
    margin-top: var(--space-2);
}

.section-roadmap-premium .roadmap-phase .timeline-list li {
    font-size: var(--font-size-sm);
}

@media (prefers-reduced-motion: reduce) {
    .section-roadmap-premium .roadmap-premium-bg::after {
        animation: none;
    }

    .section-roadmap-premium .roadmap-phase.timeline-panel:hover {
        transform: none;
    }
}

/* Section Dark - Deep contrast */
.section-dark {
    background: var(--section-bg-dark);
    color: #f8fafc;
    position: relative;
    overflow: hidden;
}

.section-dark::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.section-dark .container {
    position: relative;
    z-index: 1;
}

.section-dark h2,
.section-dark h3,
.section-dark p {
    color: #f8fafc;
}

.section-dark .section-title {
    color: #ffffff;
}

.section-dark .card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.section-dark .card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(102, 126, 234, 0.5);
    transform: translateY(-6px);
}

.section-dark .card-title {
    color: #ffffff;
}

.section-dark .card-text {
    color: #cbd5e1;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--space-16);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-4);
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.7;
}

.section-dark .section-description {
    color: var(--gray-300);
}

.section-closing {
    margin-top: var(--space-16);
    text-align: center;
    padding: var(--space-8);
    border-radius: var(--radius-lg);
}

.closing-text {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    font-weight: var(--font-weight-medium);
    font-style: italic;
    line-height: 1.6;
}

.section-dark .closing-text {
    color: #e2e8f0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* ==========================================================================
   Navbar
   ========================================================================== */

.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    height: var(--navbar-height);
    transition: box-shadow var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--navbar-height);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    text-decoration: none;
    transition: opacity var(--transition-fast);
    cursor: pointer;
}

.logo:hover {
    opacity: 0.8;
}

.logo-img {
    height: 40px;
    width: auto;
    transition: transform var(--transition-fast);
}

.logo:hover .logo-img {
    transform: scale(1.05);
}

.logo-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-6);
    margin: 0;
}

.nav-link {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    padding: var(--space-2) 0;
    position: relative;
    transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-base);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    border: none;
    text-decoration: none;
    gap: var(--space-2);
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-lg);
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: white;
}

/* Ghost button for use on dark/coloured hero backgrounds */
.btn-ghost-white {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.45);
    font-weight: var(--font-weight-semibold);
}
.btn-ghost-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.7);
    color: #fff;
}

.btn-primary-nav {
    background: var(--primary);
    color: white;
}

.btn-primary-nav:hover {
    background: var(--primary-hover);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
    position: relative;
    min-height: 100vh;
    padding: var(--space-10) 0;
    background: linear-gradient(135deg, #f9fafb 0%, #ffffff 100%);
    overflow: hidden;
    color: var(--hero-text-primary);
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 60%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0.05;
    border-radius: 50%;
    filter: blur(100px);
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 3;
    min-height: calc(100vh - var(--navbar-height));
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    max-width: 900px;
    width: 100%;
}

.hero-badges {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
}

.badge {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: rgba(255, 255, 255, 0.18);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    backdrop-filter: blur(12px);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: var(--font-weight-bold);
    line-height: 1.1;
    margin-bottom: var(--space-6);
    color: var(--hero-text-primary);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--hero-text-secondary);
    margin-bottom: var(--space-8);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-16);
    flex-wrap: wrap;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-4);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--hero-surface);
    color: var(--hero-text-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--hero-surface-border);
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(10px);
}

.feature-icon {
    width: 24px;
    height: 24px;
    color: white;
    flex-shrink: 0;
}

/* Hero Visual SVG Animation */
.hero-visual {
    position: absolute;
    right: -100px;
    top: 50%;
    transform: translateY(-50%);
    width: 600px;
    height: 600px;
    opacity: 0.35;
    z-index: 1;
    pointer-events: none;
}

.hero-media {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(1.05) contrast(1.05);
}

.hero-video-overlay {
    position: absolute;
    inset: 0;
    background: var(--hero-video-overlay);
    z-index: 1;
}

/* ==========================================================================
   Cards & Grids
   ========================================================================== */

.cards-grid {
    display: grid;
    gap: var(--space-6);
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-5 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: all var(--transition-base);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-top: 3px solid transparent;
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    border-color: rgba(102, 126, 234, 0.2);
}

.card:hover::before {
    opacity: 1;
}

.card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    box-shadow: 0 8px 16px rgba(102, 126, 234, 0.25);
    position: relative;
}

.card-icon::before {
    content: '';
    position: absolute;
    inset: -1px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    opacity: 0.2;
    filter: blur(6px);
    z-index: -1;
}

.card-icon svg {
    width: 28px;
    height: 28px;
    color: white;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-3);
}

.card-text {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Agent Cards */
.card-agent {
    text-align: center;
    padding: var(--space-6);
}

.card-agent .card-icon {
    margin: 0 auto var(--space-4);
}

.card-agent .card-title {
    font-size: var(--font-size-base);
    margin: 0;
}

/* ==========================================================================
   Value Points
   ========================================================================== */

.value-points {
    display: flex;
    flex-direction: column;
    gap: var(--space-16);
}

.value-point {
    display: flex;
    gap: var(--space-6);
    align-items: flex-start;
}

.value-icon {
    width: 72px;
    height: 72px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
    position: relative;
}

.value-icon::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    opacity: 0.3;
    filter: blur(8px);
    z-index: -1;
}

.value-icon svg {
    width: 36px;
    height: 36px;
    color: white;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.value-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-3);
}

.value-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* ==========================================================================
   Division Block
   ========================================================================== */

.division-block {
    margin-top: var(--space-24);
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-16);
    color: white;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.3);
}

.division-block::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 60%);
    pointer-events: none;
}

.division-content {
    display: flex;
    gap: var(--space-8);
    align-items: center;
    position: relative;
    z-index: 1;
}

.division-icon {
    width: 90px;
    height: 90px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-lg);
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.division-icon svg {
    width: 44px;
    height: 44px;
    color: white;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.division-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-3);
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.division-description {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.95);
    margin: 0;
    line-height: 1.7;
}

/* ==========================================================================
   AI Division — toggle, glass compare, horizontal timeline
   ========================================================================== */

.ai-division-header {
    text-align: center;
    max-width: 46rem;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--space-16);
}

.ai-division-hero-title {
    letter-spacing: -0.03em;
    line-height: 1.18;
}

.ai-division-hero-sub {
    font-size: var(--font-size-xl);
    line-height: 1.6;
    color: var(--text-secondary);
    margin: var(--space-5) 0 0;
}

/* L’intero blocco usa la larghezza del .container; hint + pill restano centrati */
.ai-division-toggle-bar {
    width: 100%;
    max-width: none;
    margin: 0 auto var(--space-14);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.ai-division-toggle-hint {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 0 0 var(--space-4);
}

.ai-division-toggle {
    display: inline-flex;
    padding: 4px;
    gap: 4px;
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.65);
    border-radius: var(--radius-full);
    box-shadow: 0 8px 32px rgba(102, 126, 234, 0.12);
}

.ai-division-toggle-btn {
    cursor: pointer;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-full);
    transition: background var(--transition-base), color var(--transition-base), box-shadow var(--transition-base);
}

.ai-division-toggle-btn:hover {
    color: var(--text-primary);
}

.ai-division-toggle-btn.is-active {
    color: #fff;
    background: var(--gradient-primary);
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.35);
}

.ai-division-toggle-btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.ai-division-metrics {
    margin-top: var(--space-8);
    width: 100%;
    max-width: none;
    align-self: stretch;
    text-align: left;
}

.ai-division-metric-panels {
    position: relative;
    min-height: 5.5rem;
}

.ai-metric-panel[hidden] {
    display: none !important;
}

.ai-metric-panel:not([hidden]) {
    display: block;
    animation: aiMetricFade 0.35s ease;
}

@keyframes aiMetricFade {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ai-metric-panel {
    padding: var(--space-6) var(--space-8);
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(102, 126, 234, 0.18);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

@media (min-width: 768px) {
    .ai-metric-panel {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--space-8);
        align-items: start;
    }

    .ai-metric-panel .ai-metric-row {
        margin-bottom: 0;
    }
}

.ai-metric-row {
    display: grid;
    gap: var(--space-2);
    margin-bottom: var(--space-5);
}

.ai-metric-row:last-child {
    margin-bottom: 0;
}

.ai-metric-label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
}

.ai-metric-value {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    line-height: 1.5;
}

.ai-metric-disclaimer {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin: var(--space-4) 0 0;
    text-align: center;
    line-height: 1.5;
}

/* Due colonne Pain / Gain — tutta la larghezza del container */
.ai-division-vs-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    width: 100%;
    max-width: none;
    margin-left: 0;
    margin-right: 0;
    margin-bottom: var(--space-20);
    align-items: stretch;
}

@media (max-width: 900px) {
    .ai-division-vs-grid {
        grid-template-columns: 1fr;
    }
}

.ai-vs-glass {
    position: relative;
    padding: var(--space-10) var(--space-8);
    border-radius: var(--radius-xl);
    background: rgba(255, 255, 255, 0.45);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.7);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.1);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.ai-vs-glass:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 48px rgba(102, 126, 234, 0.14);
}

.ai-vs-glass--pain {
    border-color: rgba(148, 163, 184, 0.45);
    box-shadow: 0 12px 36px rgba(15, 23, 42, 0.06);
}

.ai-vs-glass--gain {
    border-color: rgba(102, 126, 234, 0.35);
    background: linear-gradient(155deg, rgba(255, 255, 255, 0.58) 0%, rgba(238, 242, 255, 0.75) 100%);
    box-shadow: 0 12px 40px rgba(118, 75, 162, 0.12);
}

.ai-vs-glass-icon {
    width: 3.5rem;
    height: 3.5rem;
    margin-bottom: var(--space-4);
    color: var(--gray-400);
}

.ai-vs-glass--gain .ai-vs-glass-icon {
    color: var(--primary);
}

.ai-vs-svg {
    width: 100%;
    height: 100%;
}

.ai-vs-svg--gain {
    color: #667eea;
}

.ai-vs-glass-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin: 0 0 var(--space-2);
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.ai-vs-glass-tag {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gray-500);
    margin: 0 0 var(--space-6);
    padding: 2px 10px;
    border-radius: var(--radius-full);
    background: rgba(148, 163, 184, 0.2);
}

.ai-vs-glass-tag--gain {
    color: var(--primary-2);
    background: rgba(102, 126, 234, 0.15);
}

.ai-vs-list {
    margin: 0;
    padding-left: 1.15rem;
    color: var(--text-secondary);
    font-size: var(--font-size-base);
    line-height: 1.7;
}

.ai-vs-list li {
    margin-bottom: var(--space-3);
}

.ai-vs-list li:last-child {
    margin-bottom: 0;
}

/* Timeline orizzontale */
.ai-timeline-wrap {
    max-width: 72rem;
    margin: 0 auto;
    padding-top: var(--space-4);
}

.ai-timeline-eyebrow {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    text-align: center;
    margin: 0 0 var(--space-10);
}

.ai-timeline {
    position: relative;
    padding: var(--space-4) 0 var(--space-2);
}

.ai-timeline-rail {
    position: absolute;
    left: 8%;
    right: 8%;
    top: 2.25rem;
    height: 3px;
    background: linear-gradient(90deg, rgba(102, 126, 234, 0.25), rgba(118, 75, 162, 0.45), rgba(102, 126, 234, 0.25));
    border-radius: var(--radius-full);
    z-index: 0;
}

.ai-timeline-steps {
    position: relative;
    z-index: 1;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-2);
}

.ai-timeline-step {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    min-width: 0;
}

.ai-timeline-node {
    width: 3.25rem;
    height: 3.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 2px solid rgba(102, 126, 234, 0.35);
    border-radius: 50%;
    color: var(--primary);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.15);
    margin-bottom: var(--space-4);
}

.ai-timeline-node svg {
    width: 1.25rem;
    height: 1.25rem;
}

.ai-timeline-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    line-height: 1.3;
}

.ai-timeline-step--qa {
    position: relative;
    padding-top: 1.75rem;
}

.ai-timeline-247 {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.65rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.06em;
    color: #fff;
    background: var(--gradient-primary);
    padding: 3px 8px;
    border-radius: var(--radius-full);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.35);
    white-space: nowrap;
}

@media (max-width: 768px) {
    .ai-timeline-rail {
        display: none;
    }

    .ai-timeline-steps {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-6);
        padding-left: var(--space-4);
        border-left: 3px solid rgba(102, 126, 234, 0.25);
    }

    .ai-timeline-step {
        flex-direction: row;
        align-items: center;
        text-align: left;
        gap: var(--space-4);
    }

    .ai-timeline-step--qa {
        flex-direction: column;
        align-items: flex-start;
        padding-top: 0;
        padding-left: 0;
    }

    .ai-timeline-step--qa .ai-timeline-247 {
        position: static;
        transform: none;
        margin-bottom: var(--space-2);
    }

    .ai-timeline-step--qa .ai-timeline-node {
        margin-bottom: var(--space-2);
    }

    .ai-timeline-247 {
        position: static;
        transform: none;
    }

    .ai-timeline-node {
        margin-bottom: 0;
        flex-shrink: 0;
    }
}

/* ==========================================================================
   Advantage — “moat” strip (Stitch / trust page glass + bento)
   ========================================================================== */

.section-advantage-moat {
    position: relative;
    background: #0c0e12;
    color: #f8fafc;
    overflow: hidden;
    border-top: 1px solid rgba(129, 236, 255, 0.1);
    border-bottom: 1px solid rgba(166, 140, 255, 0.12);
}

.section-advantage-moat .advantage-moat-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(ellipse 70% 50% at 15% -5%, rgba(129, 236, 255, 0.14), transparent 55%),
        radial-gradient(circle at 92% 25%, rgba(166, 140, 255, 0.12), transparent 42%),
        radial-gradient(circle at 40% 100%, rgba(99, 102, 241, 0.08), transparent 45%),
        linear-gradient(180deg, #0c0e12 0%, #11131f 50%, #0f172a 100%);
}

.section-advantage-moat .advantage-moat-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.45;
    background-image:
        linear-gradient(rgba(129, 236, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(129, 236, 255, 0.04) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 75% 65% at 50% 35%, #000 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 75% 65% at 50% 35%, #000 20%, transparent 70%);
}

.section-advantage-moat .advantage-moat-inner {
    position: relative;
    z-index: 1;
}

.section-advantage-moat .advantage-moat-header {
    text-align: center;
    max-width: 44rem;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.advantage-moat-eyebrow {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: #c4b5fd;
    margin: 0 0 var(--space-4);
}

.advantage-moat-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: var(--font-weight-bold);
    line-height: 1.15;
    letter-spacing: -0.03em;
    color: #f8fafc;
    margin: 0 0 var(--space-5);
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: baseline;
    gap: 0.35em;
}

.advantage-moat-title-line {
    color: #f1f5f9;
}

.advantage-moat-title-accent {
    background: linear-gradient(105deg, #5eead4 0%, #818cf8 48%, #c084fc 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.advantage-moat-lead {
    font-size: var(--font-size-lg);
    line-height: 1.65;
    color: #94a3b8;
    margin: 0;
}

.advantage-moat-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--space-6);
}

.advantage-moat-card {
    grid-column: 1 / -1;
    position: relative;
    text-align: left;
    padding: clamp(1.5rem, 3vw, 2.25rem);
    border-radius: var(--radius-xl);
    background: rgba(34, 38, 43, 0.58);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-top: 1px solid rgba(129, 236, 255, 0.2);
    border-left: 1px solid rgba(129, 236, 255, 0.08);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
    transition: transform 0.35s cubic-bezier(0.34, 1.45, 0.64, 1),
        box-shadow 0.35s ease,
        border-color 0.3s ease;
}

.advantage-moat-card--violet {
    border-top-color: rgba(192, 132, 252, 0.28);
    border-left-color: rgba(166, 140, 255, 0.12);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35), 0 0 48px rgba(166, 140, 255, 0.05);
}

.advantage-moat-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4), 0 0 56px rgba(129, 236, 255, 0.1);
}

.advantage-moat-card--violet:hover {
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4), 0 0 56px rgba(166, 140, 255, 0.12);
}

.advantage-moat-card-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-4);
    margin-bottom: var(--space-5);
}

.advantage-moat-icon {
    width: 3.25rem;
    height: 3.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    background: rgba(15, 23, 42, 0.75);
    border: 1px solid rgba(129, 236, 255, 0.28);
    color: #5eead4;
    transition: transform 0.35s ease;
}

.advantage-moat-card--violet .advantage-moat-icon {
    border-color: rgba(192, 132, 252, 0.35);
    color: #c4b5fd;
}

.advantage-moat-card:hover .advantage-moat-icon {
    transform: scale(1.06);
}

.advantage-moat-icon svg {
    width: 1.5rem;
    height: 1.5rem;
}

.advantage-moat-tag {
    font-size: 0.65rem;
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #94a3b8;
    background: rgba(15, 23, 42, 0.65);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.advantage-moat-index {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    line-height: 1;
    margin-bottom: var(--space-3);
    background: linear-gradient(135deg, #5eead4 0%, #818cf8 55%, #c084fc 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.advantage-moat-card-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: #f8fafc;
    margin: 0 0 var(--space-3);
    line-height: 1.3;
}

.advantage-moat-card-text {
    font-size: var(--font-size-base);
    color: #94a3b8;
    line-height: 1.7;
    margin: 0;
}

@media (min-width: 900px) {
    .advantage-moat-card:nth-child(1) {
        grid-column: span 7;
    }

    .advantage-moat-card:nth-child(2) {
        grid-column: span 5;
    }

    .advantage-moat-card:nth-child(3),
    .advantage-moat-card:nth-child(4),
    .advantage-moat-card:nth-child(5) {
        grid-column: span 4;
    }
}

@media (prefers-reduced-motion: reduce) {
    .advantage-moat-card,
    .advantage-moat-icon {
        transition: none;
    }

    .advantage-moat-card:hover {
        transform: none;
    }
}

/* ==========================================================================
   Timeline
   ========================================================================== */

.timeline {
    max-width: 900px;
    margin: 0 auto;
}

.timeline-item {
    display: flex;
    gap: var(--space-8);
    position: relative;
}

.timeline-item:not(:last-child) {
    margin-bottom: var(--space-24);
}

.timeline-marker {
    flex-shrink: 0;
    width: 48px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.timeline-dot {
    width: 24px;
    height: 24px;
    background: var(--gradient-primary);
    border-radius: 50%;
    border: 4px solid white;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1), 0 4px 8px rgba(0, 0, 0, 0.15);
    position: relative;
    z-index: 2;
}

.timeline-line {
    width: 2px;
    flex: 1;
    background: linear-gradient(to bottom, var(--primary), transparent);
    margin-top: 8px;
}

.timeline-content {
    flex: 1;
    padding-bottom: var(--space-8);
}

.timeline-label {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: var(--primary);
    color: white;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-4);
}

.timeline-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-4);
}

.timeline-list {
    list-style: none;
    padding: 0;
}

.timeline-list li {
    padding: var(--space-2) 0;
    padding-left: var(--space-6);
    position: relative;
    font-size: var(--font-size-base);
    color: var(--text-secondary);
}

.timeline-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-left: 4px solid transparent;
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-left-color: var(--primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateX(4px);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-6);
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    text-align: left;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--gray-50);
}

.faq-icon {
    width: 24px;
    height: 24px;
    color: var(--primary);
    transition: transform var(--transition-base);
    flex-shrink: 0;
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-answer-content {
    padding: 0 var(--space-6) var(--space-6);
}

.faq-answer-content p {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* ==========================================================================
   Presentation Section
   ========================================================================== */

.presentation-panel {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.presentation-toolbar {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--space-6);
    flex-wrap: wrap;
    margin-bottom: var(--space-6);
}

.presentation-field {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    min-width: 240px;
    flex: 1;
}

.presentation-field label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-secondary);
}

.presentation-select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-base);
    font-family: var(--font-sans);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: white;
    color: var(--text-primary);
    transition: border-color var(--transition-fast);
}

.presentation-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.presentation-controls {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.presentation-controls .btn,
.presentation-toolbar .btn {
    white-space: nowrap;
}

.presentation-page {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-secondary);
}

.presentation-viewer {
    width: 100%;
    height: 75vh;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    background: var(--bg-surface-alt);
    overflow: hidden;
}

.presentation-viewer:fullscreen {
    height: 100vh;
    border-radius: 0;
}

.presentation-frame {
    width: 100%;
    height: 100%;
    border: none;
    background: white;
}

/* ==========================================================================
   Contact Form
   ========================================================================== */

.section-contact {
    background: linear-gradient(135deg, #4c1d95 0%, #5b21b6 50%, #6d28d9 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.section-contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(167, 139, 250, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(102, 126, 234, 0.3) 0%, transparent 50%);
    pointer-events: none;
}

.section-contact .container {
    position: relative;
    z-index: 1;
}

.section-contact h2,
.section-contact p {
    color: white;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.contact-wrapper {
    max-width: 700px;
    margin: 0 auto;
}

.contact-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.contact-intro {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
}

.contact-form {
    background: white;
    padding: var(--space-16);
    border-radius: var(--radius-xl);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

.form-group {
    margin-bottom: var(--space-6);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-base);
    font-family: var(--font-sans);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: white;
    color: var(--text-primary);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-checkbox {
    margin-bottom: var(--space-8);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
    margin-top: 2px;
    width: auto;
    cursor: pointer;
}

.privacy-link {
    color: var(--primary);
    text-decoration: underline;
}

.contact-form .btn {
    width: 100%;
}

.contact-info {
    margin-top: var(--space-16);
    text-align: center;
    color: rgba(255, 255, 255, 0.9);
}

.contact-company {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-4);
}

.contact-detail {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
}

.contact-detail svg {
    width: 20px;
    height: 20px;
}

.contact-detail a {
    color: rgba(255, 255, 255, 0.9);
}

.contact-detail a:hover {
    color: white;
}

/* ==========================================================================
   Beta Badge (hero)
   ========================================================================== */

.badge-beta {
    background: rgba(16, 185, 129, 0.15);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.35);
    animation: badge-beta-pulse 2.4s ease-in-out infinite;
}

@keyframes badge-beta-pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.7; }
}

.hero-beta-hint {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.55);
    margin: calc(-1 * var(--space-4)) 0 var(--space-6);
    letter-spacing: 0.01em;
}

/* ==========================================================================
   Beta Waitlist Section
   ========================================================================== */

.section-waitlist {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 60%, #0f172a 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.section-waitlist::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(16, 185, 129, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.section-waitlist .container {
    position: relative;
    z-index: 1;
}

.waitlist-wrapper {
    max-width: 640px;
    margin: 0 auto;
    text-align: center;
}

.waitlist-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-4);
    background: rgba(16, 185, 129, 0.12);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: var(--space-4);
}

.waitlist-header {
    margin-bottom: var(--space-10);
}

.waitlist-header .section-title {
    color: white;
    margin-bottom: var(--space-4);
}

.waitlist-intro {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.05rem;
    line-height: 1.6;
    max-width: 520px;
    margin: 0 auto;
}

.waitlist-form {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: var(--space-10) var(--space-12);
    text-align: left;
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
}

.waitlist-form label {
    color: rgba(255, 255, 255, 0.8);
}

.waitlist-form input,
.waitlist-form select {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: white;
}

.waitlist-form input::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

.waitlist-form input:focus,
.waitlist-form select:focus {
    outline: none;
    border-color: #10b981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
    background: rgba(255, 255, 255, 0.08);
}

.waitlist-form select option {
    background: #1e293b;
    color: white;
}

.waitlist-form .checkbox-label {
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.85rem;
}

.waitlist-form .privacy-link {
    color: #10b981;
}

.btn-waitlist {
    width: 100%;
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
    color: white;
    border: none;
    font-weight: 700;
    letter-spacing: 0.02em;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-waitlist:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.35);
}

.waitlist-disclaimer {
    margin-top: var(--space-5);
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.4);
}

@media (max-width: 640px) {
    .waitlist-form {
        padding: var(--space-8) var(--space-6);
    }
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    background: linear-gradient(135deg, #020617 0%, #0f172a 100%);
    color: var(--gray-300);
    padding: var(--space-16) 0 var(--space-6);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--space-8);
    border-bottom: 1px solid var(--gray-800);
    margin-bottom: var(--space-6);
}

.footer-logo {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-2);
}

.footer-tagline {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    margin: 0;
}

.footer-links {
    display: flex;
    gap: var(--space-6);
}

.footer-link {
    font-size: var(--font-size-sm);
    color: var(--gray-400);
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--gray-100);
}

.footer-bottom {
    text-align: center;
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: var(--gray-500);
    margin: 0;
}

/* ==========================================================================
   Toast Notification
   ========================================================================== */

.toast {
    position: fixed;
    top: var(--space-6);
    right: var(--space-6);
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    padding: var(--space-6);
    max-width: 400px;
    z-index: 10000;
    transform: translateX(calc(100% + var(--space-6)));
    transition: transform var(--transition-slow);
}

.toast.show {
    transform: translateX(0);
}

.toast-content {
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
}

.toast-icon {
    width: 24px;
    height: 24px;
    color: var(--success);
    flex-shrink: 0;
}

.toast-message strong {
    display: block;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.toast-message p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

.toast-close {
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    opacity: 0.5;
    transition: opacity var(--transition-fast);
}

.toast-close:hover {
    opacity: 1;
}

.toast-close svg {
    width: 16px;
    height: 16px;
    color: var(--text-secondary);
}

/* ==========================================================================
   Animations
   ========================================================================== */

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* SVG Animations */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5;
}
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 1024px) {
    .hero-visual {
        opacity: 0.3;
    }
}

@media (max-width: 768px) {
    :root {
        --space-24: var(--space-16);
        --space-16: var(--space-12);
    }

    .navbar-content {
        position: relative;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: var(--space-6);
        box-shadow: var(--shadow-lg);
        gap: var(--space-4);
        transform: scaleY(0);
        transform-origin: top;
        transition: transform var(--transition-base);
    }

    .nav-links.active {
        transform: scaleY(1);
    }

    .btn-primary-nav {
        display: none;
    }

    .hero {
        padding: calc(var(--navbar-height) + var(--space-8)) 0 var(--space-12);
        min-height: 100vh;
    }

    .hero .container {
        min-height: calc(100vh - var(--navbar-height));
        align-items: center;
    }

    .hero-visual {
        display: none;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .value-point {
        flex-direction: column;
    }

    .division-content {
        flex-direction: column;
        text-align: center;
    }

    .ai-division-toggle {
        flex-direction: column;
        width: 100%;
        max-width: 22rem;
        margin-left: auto;
        margin-right: auto;
    }

    .ai-division-toggle-btn {
        width: 100%;
        text-align: center;
    }

    .ai-division-hero-sub {
        font-size: var(--font-size-lg);
    }

    .footer-content {
        flex-direction: column;
        gap: var(--space-6);
        text-align: center;
    }

    .footer-links {
        flex-direction: column;
        gap: var(--space-3);
    }

    .timeline-item {
        gap: var(--space-4);
    }

    .presentation-toolbar {
        align-items: stretch;
        flex-direction: column;
    }

    .presentation-controls {
        justify-content: space-between;
    }

    .presentation-viewer {
        height: 60vh;
    }

    .toast {
        left: var(--space-4);
        right: var(--space-4);
        max-width: none;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
    }

    .section {
        padding: var(--space-16) 0;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }

    .advantage-moat-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   Accessibility & Print
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .hero-video {
        display: none;
    }
}

@media print {
    .navbar,
    .toast,
    .btn,
    .hero-visual {
        display: none;
    }

    .section {
        page-break-inside: avoid;
    }
}

/* ==========================================================================
   PRICING SECTION — Styles
   ========================================================================== */

/* ── Billing toggle ── */
.billing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    flex-wrap: wrap;
    margin-bottom: var(--space-12);
}

.billing-cycle-option {
    display: inline-flex;
    align-items: center;
    cursor: pointer;
}

.billing-save-badge {
    background: linear-gradient(135deg, var(--success), #34d399);
    color: #fff;
    border-radius: var(--radius-full);
    padding: 2px 10px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
}

.billing-cycle-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.billing-cycle-option > span {
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-secondary);
    border-radius: var(--radius-full);
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
}

.billing-cycle-option input:checked + span {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: 0 0 0 2px rgba(102, 126, 234, 0.15);
    font-weight: var(--font-weight-semibold);
}

.billing-cycle-hint {
    color: var(--text-muted);
    font-size: var(--font-size-xs);
}

/* ── Plans grid ── */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-12);
    align-items: stretch;
}

.pricing-card {
    background: var(--bg-card);
    border: 1.5px solid var(--plan-accent);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
    --plan-accent: var(--primary);
    --plan-accent-soft: rgba(102, 126, 234, 0.12);
}

.pricing-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--plan-accent);
}

.pricing-card:not(.pricing-card-featured):not(.pricing-card-enterprise) {
    box-shadow: 0 0 0 1px var(--plan-accent), var(--shadow-sm);
}

.pricing-card-featured {
    border-color: var(--plan-accent);
    box-shadow: 0 0 0 1px var(--plan-accent), var(--shadow-md);
    transform: translateY(-4px);
}

.pricing-card-featured:hover { transform: translateY(-10px); }

.pricing-card#pc-personal {
    --plan-accent: #12b886;
    --plan-accent-soft: rgba(18, 184, 134, 0.15);
}

.pricing-card#pc-professional {
    --plan-accent: #f59f00;
    --plan-accent-soft: rgba(245, 159, 0, 0.16);
}

.pricing-card#pc-business {
    --plan-accent: #fa5252;
    --plan-accent-soft: rgba(250, 82, 82, 0.14);
}

.pricing-card#pc-enterprise {
    --plan-accent: #7950f2;
    --plan-accent-soft: rgba(121, 80, 242, 0.15);
}

.pricing-card-enterprise {
    background: linear-gradient(145deg, #0f172a 0%, #1e293b 100%);
    border-color: rgba(121, 80, 242, 0.45);
    color: #f8fafc;
}

.pricing-card-enterprise .pricing-sub,
.pricing-card-enterprise .pricing-usecase,
.pricing-card-enterprise .pricing-annual-note {
    color: rgba(255,255,255,0.6);
}

.pricing-card-enterprise .pricing-edition { color: #8b5cf6; }
.pricing-card-enterprise .pf-included,
.pricing-card-enterprise .pf-star { color: #f1f5f9; }

.pricing-card-enterprise:hover {
    border-color: #7950f2;
    box-shadow: 0 0 0 1px rgba(121, 80, 242, 0.5), var(--shadow-lg);
}

/* Featured top accent bar */
.pricing-card-featured::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--plan-accent);
}

.pricing-card-enterprise::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: #7950f2;
}

/* Popular ribbon */
.pricing-popular-badge {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: linear-gradient(135deg, #f59f00, #f76707);
    color: #fff;
    border-radius: var(--radius-full);
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.04em;
    z-index: 1;
}

.pricing-card-inner {
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.pricing-edition {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--plan-accent);
    margin-bottom: var(--space-1);
}

.pricing-sub {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--space-5);
}

.pricing-price-wrap {
    display: flex;
    align-items: baseline;
    gap: 2px;
    margin-bottom: var(--space-1);
}

.pricing-currency {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-secondary);
    vertical-align: super;
}

.pricing-amount {
    font-size: 2.75rem;
    font-weight: var(--font-weight-black);
    color: var(--text-primary);
    line-height: 1;
}

.pricing-card-enterprise .pricing-amount,
.pricing-card-enterprise .pricing-currency { color: #8b5cf6; }

.pricing-period {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-left: var(--space-1);
}

.pricing-price-custom .pricing-custom-label {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: #fbbf24;
    letter-spacing: -0.02em;
}

.pricing-annual-note {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    min-height: 1.2em;
    margin-bottom: var(--space-1);
}

.pricing-alt-price {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    min-height: 1.2em;
    margin-bottom: var(--space-4);
}

.pricing-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.55;
    margin-bottom: var(--space-4);
}

.pricing-usecase {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-5);
    border-bottom: 1px solid var(--border-color);
}

.pricing-card-enterprise .pricing-usecase {
    border-bottom-color: rgba(255,255,255,0.1);
}

.pricing-card-enterprise .pricing-description,
.pricing-card-enterprise .pricing-alt-price {
    color: rgba(255,255,255,0.72);
}

/* Feature list */
.pricing-features {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-8);
    flex: 1;
}

.pricing-features li {
    padding: var(--space-2) 0;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    border-bottom: 1px solid var(--border-color);
}

.pricing-card-enterprise .pricing-features li {
    border-bottom-color: rgba(255,255,255,0.08);
}

.pricing-features li:last-child { border-bottom: none; }

.pricing-features li::before {
    flex-shrink: 0;
    margin-top: 2px;
    font-size: 0.85rem;
}

.pf-included::before { content: '✓'; color: var(--success); font-weight: 700; }
.pf-star::before     { content: '★'; color: var(--warning); }
.pf-locked::before   { content: '✗'; color: var(--border-color-hover); }
.pf-locked           { opacity: 0.45; }

/* CTA buttons */
.btn-pricing {
    display: block;
    text-align: center;
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    text-decoration: none;
    transition: all var(--transition-base);
    border: 2px solid transparent;
    margin-top: auto;
}

.btn-pricing-primary {
    background: linear-gradient(135deg, #f59f00, #f76707);
    color: #fff;
}

.btn-pricing-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    color: #fff;
}

.btn-pricing-outline {
    background: var(--plan-accent);
    color: #fff;
    border-color: var(--plan-accent);
}

.btn-pricing-outline:hover {
    opacity: 0.92;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    color: #fff;
}

.btn-pricing-enterprise {
    background: linear-gradient(135deg, #7950f2, #5b3cc4);
    color: #fff;
}

.btn-pricing-enterprise:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    color: #fff;
}

/* ── Add-ons strip ── */
.addons-strip {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-6) var(--space-8);
    margin-bottom: var(--space-16);
    display: flex;
    align-items: center;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.addons-strip-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    flex-shrink: 0;
}

.addons-strip-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    flex: 1;
}

.addon-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
    transition: border-color var(--transition-fast);
}

.addon-chip:hover { border-color: var(--primary); }

.addon-chip-name {
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
}

.addon-chip-price {
    color: var(--primary);
    font-weight: var(--font-weight-semibold);
}

/* ── Credits section ── */
.credits-section {
    background: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 100%);
    border-radius: var(--radius-lg);
    padding: var(--space-10) var(--space-10);
    position: relative;
    overflow: hidden;
}

.credits-section::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(102,126,234,0.1) 0%, transparent 70%);
    pointer-events: none;
}

.credits-header {
    max-width: 720px;
    margin-bottom: var(--space-8);
}

.credits-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

.credits-desc {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin: 0;
}

.credits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-5);
    margin-bottom: var(--space-6);
}

.credit-card {
    background: #fff;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    text-align: center;
    position: relative;
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.credit-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.credit-card-popular {
    border-color: var(--primary);
    box-shadow: 0 0 0 1px var(--primary), var(--shadow-sm);
}

.credit-popular {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    background: var(--gradient-primary);
    color: #fff;
    border-radius: var(--radius-full);
    padding: 2px 10px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
}

.credit-icon { font-size: 1.75rem; }

.credit-amount {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-black);
    color: var(--text-primary);
    line-height: 1;
}

.credit-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-secondary);
}

.credit-desc {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    line-height: 1.4;
    margin-bottom: var(--space-2);
    flex: 1;
}

.btn-credit {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    border-radius: var(--radius-full);
    padding: var(--space-2) var(--space-5);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
    width: 100%;
}

.btn-credit:hover {
    background: var(--primary);
    color: #fff;
}

.btn-credit-featured {
    background: var(--gradient-primary);
    color: #fff;
    border-color: transparent;
}

.btn-credit-featured:hover {
    opacity: 0.9;
    color: #fff;
}

.credits-note {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin: 0;
    line-height: 1.5;
}

/* ── Responsive ── */
@media (max-width: 992px) {
    .pricing-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-card-featured { transform: none; }
}

@media (max-width: 768px) {
    .pricing-grid { grid-template-columns: 1fr; }
    .credits-grid { grid-template-columns: repeat(2, 1fr); }
    .credits-section { padding: var(--space-8) var(--space-6); }
    .addons-strip { flex-direction: column; align-items: flex-start; }
    .billing-toggle { flex-wrap: wrap; }
}

@media (max-width: 480px) {
    .credits-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Language Switcher
   ========================================================================== */

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.lang-switch {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background: transparent;
    cursor: pointer;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.lang-switch:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

/* ==========================================================================
   Platform Visual (What is AGI-ONE infographic)
   ========================================================================== */

.platform-visual {
    margin-bottom: var(--space-16);
    text-align: center;
}

.platform-infographic {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   Architecture Section
   ========================================================================== */

.architecture-visual {
    text-align: center;
    margin-bottom: var(--space-16);
}

.architecture-diagram {
    max-width: 680px;
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Pillars Grid */
.pillars-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    margin-bottom: var(--space-12);
}

.pillar-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    transition: all var(--transition-base);
    text-align: center;
}

.pillar-card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(102, 126, 234, 0.5);
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
}

.pillar-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    margin: 0 auto var(--space-4);
    box-shadow: 0 8px 16px rgba(102, 126, 234, 0.3);
}

.pillar-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.pillar-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-3);
    color: #ffffff;
}

.pillar-text {
    font-size: var(--font-size-sm);
    color: #cbd5e1;
    line-height: 1.6;
    margin: 0;
}

/* Layers Strip */
.layers-strip {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
}

.layer-card {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
}

.layer-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.layer-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
}

.layer-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: rgba(102, 126, 234, 0.2);
    color: #a5b4fc;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-3);
}

.layer-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: #ffffff;
    margin-bottom: var(--space-2);
}

.layer-text {
    font-size: var(--font-size-base);
    color: #cbd5e1;
    line-height: 1.6;
    margin: 0;
}

/* ==========================================================================
   Super Agent Section
   ========================================================================== */

.section-superagent {
    background:
        radial-gradient(ellipse at 20% 50%, rgba(102, 126, 234, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(118, 75, 162, 0.10) 0%, transparent 50%),
        linear-gradient(135deg, #fafbfc 0%, #f8f9fa 100%);
    position: relative;
    overflow: hidden;
}

.section-superagent::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -10%;
    width: 50%;
    height: 160%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

.superagent-showcase {
    max-width: 1100px;
    margin: 0 auto;
}

.superagent-visual {
    text-align: center;
    margin-bottom: var(--space-12);
}

.superagent-hero-img {
    max-width: 720px;
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    filter: drop-shadow(0 20px 40px rgba(102, 126, 234, 0.15));
}

/* Due colonne per le quattro capability del Super Agent */
.sa-capabilities {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
    align-items: stretch;
}

.sa-capability {
    display: flex;
    gap: var(--space-6);
    align-items: flex-start;
    padding: var(--space-8);
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.sa-capability::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.sa-capability:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.1);
    border-color: rgba(102, 126, 234, 0.2);
}

.sa-capability:hover::before {
    opacity: 1;
}

.sa-cap-icon {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 16px rgba(102, 126, 234, 0.25);
}

.sa-cap-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.sa-cap-content h4 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-2);
    color: var(--text-primary);
}

.sa-cap-content p {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

/* ==========================================================================
   Architecture + Super Agent Responsive
   ========================================================================== */

@media (max-width: 992px) {
    .pillars-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .pillars-grid {
        grid-template-columns: 1fr;
    }
    .layers-strip {
        grid-template-columns: 1fr;
    }
    .sa-capabilities {
        grid-template-columns: 1fr;
    }
    .sa-capability {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
    .nav-actions .btn-primary-nav {
        display: none;
    }
}

@media (max-width: 480px) {
    .architecture-diagram {
        border-radius: var(--radius-lg);
    }
}

/* ==========================================================================
   Nav Dropdown — mega-hover menu for items with sub-pages
   ========================================================================== */

/* Wrapper li that carries the dropdown */
.nav-item-dropdown {
    position: relative;
}

/* Arrow indicator */
.nav-item-dropdown > .nav-link::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: 5px;
    vertical-align: middle;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 4px solid currentColor;
    opacity: 0.55;
    transition: transform var(--transition-fast);
}

.nav-item-dropdown:hover > .nav-link::after,
.nav-item-dropdown:focus-within > .nav-link::after {
    transform: rotate(180deg);
    opacity: 1;
}

/* Dropdown panel */
.nav-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    min-width: 340px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 0.75rem;
    z-index: 200;
    /* small triangle pointer */
    margin-top: 4px;
}

.nav-dropdown::before {
    content: '';
    position: absolute;
    top: -7px;
    left: 50%;
    transform: translateX(-50%);
    width: 12px;
    height: 12px;
    background: var(--bg-card);
    border-left: 1px solid var(--border-color);
    border-top: 1px solid var(--border-color);
    transform: translateX(-50%) rotate(45deg);
}

.nav-item-dropdown:hover .nav-dropdown,
.nav-item-dropdown:focus-within .nav-dropdown {
    display: block;
    animation: dropdownFadeIn 0.15s ease;
}

@keyframes dropdownFadeIn {
    from { opacity: 0; transform: translateX(-50%) translateY(-6px); }
    to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Dropdown items */
.nav-dropdown-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: background var(--transition-fast);
}

.nav-dropdown-item:hover {
    background: var(--primary-light);
}

.nav-dropdown-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    background: var(--gray-100);
}

.nav-dropdown-item--active .nav-dropdown-icon,
.nav-dropdown-item--business .nav-dropdown-icon {
    background: var(--gradient-primary);
}

.nav-dropdown-body {}

.nav-dropdown-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: 2px;
    display: block;
}

.nav-dropdown-desc {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    display: block;
    line-height: 1.4;
}

.nav-dropdown-badge {
    flex-shrink: 0;
    margin-left: auto;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    padding: 2px 7px;
    border-radius: var(--radius-full);
    white-space: nowrap;
}
.nav-dropdown-badge--free       { background: rgba(16,185,129,0.1);  color: #059669; }
.nav-dropdown-badge--pro        { background: rgba(102,126,234,0.12); color: var(--primary); }
.nav-dropdown-badge--enterprise { background: var(--gradient-primary); color: #fff; }

/* Divider between items */
.nav-dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 0.375rem 0.5rem;
}

/* Mobile: dropdown becomes static block inside the open menu */
@media (max-width: 992px) {
    .nav-item-dropdown > .nav-link::after { display: none; }

    .nav-dropdown {
        display: block;
        position: static;
        transform: none;
        min-width: 0;
        box-shadow: none;
        border: none;
        border-radius: 0;
        background: var(--gray-50);
        padding: 0.25rem 0 0.25rem 1rem;
        margin-top: 0;
        border-left: 2px solid var(--border-color);
    }

    .nav-dropdown::before { display: none; }

    .nav-dropdown-item { padding: 0.5rem 0.75rem; }
    .nav-dropdown-icon { width: 32px; height: 32px; font-size: 1rem; }
    .nav-dropdown-badge { display: none; }
}

/* ==========================================================================
   Waitlist — enhanced form styles
   ========================================================================== */

.waitlist-incentive {
    display: flex;
    align-items: flex-start;
    gap: 0.875rem;
    background: linear-gradient(135deg, rgba(102,126,234,0.12) 0%, rgba(118,75,162,0.10) 100%);
    border: 1px solid rgba(102,126,234,0.25);
    border-radius: var(--radius-lg);
    padding: 1rem 1.25rem;
    margin-bottom: 2rem;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.55;
}
.waitlist-incentive-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}
.waitlist-incentive strong { color: var(--primary); }
.waitlist-incentive .incentive-tag {
    display: inline-block;
    background: var(--gradient-primary);
    color: #fff;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 0.15rem 0.5rem;
    border-radius: 99px;
    margin-right: 0.35rem;
    vertical-align: middle;
}

.interest-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem 1.25rem;
    margin-top: 0.5rem;
}
.interest-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    padding: 0.35rem 0.5rem;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}
.interest-item:hover { background: var(--gray-50); }
.interest-item input[type="checkbox"] {
    accent-color: var(--primary);
    width: 15px;
    height: 15px;
    flex-shrink: 0;
    cursor: pointer;
}

.wl-challenge-group label { font-size: var(--font-size-sm); }
.wl-challenge-group input[type="number"] {
    max-width: 140px;
    margin-top: 0.4rem;
}

/* Honeypot — visually hidden but not display:none so JS can access it */
.wl-hp { position: absolute; left: -9999px; top: -9999px; opacity: 0; pointer-events: none; tabindex: -1; }

@media (max-width: 600px) {
    .interest-grid { grid-template-columns: 1fr; }
}