/**
 * Personal RAG - Document Management Styles
 * Standardizzato seguendo Platform UI Standards
 */

/* ========================================
   LAYOUT & STRUCTURE
   ======================================== */

.personal-rag-dashboard {
    padding: var(--space-6) 0 var(--space-12);
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

/* ========================================
   PAGE HEADER
   ======================================== */
  .page-header {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: flex-start;
            gap: var(--space-4);
            padding:20px;
            text-align: left;
        }

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

        .page-header .page-title {
            justify-content: flex-start;
            gap: var(--space-3);
        }

        .page-header .page-title i {
            font-size: 1.75rem;
        }

        .page-header .page-subtitle {
            text-align: left;
            margin: 0;
            color: var(--text-secondary);
        }

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

/* ========================================
   STATS GRID (stile compatto D-One)
   ======================================== */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.stat-card {
    background: var(--bg-card);
    border-radius: 8px;
    padding: var(--space-2);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Stat card come link (Cloud Storage) */
.stat-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.stat-card-link:hover {
    border-color: var(--primary);
}

.stat-card-link .stat-value i {
    font-size: 1.25rem;
}

.stat-value {
    font-size: 1rem;
    font-weight: var(--font-weight-black);
    color: var(--primary);
    display: block;
    margin-bottom: var(--space-1);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.6rem;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ========================================
   ACTION BAR (filtri e ordinamento)
   ======================================== */

.action-bar {
    margin-bottom: var(--space-4);
}

.filter-group {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
    background: var(--bg-card);
    padding: var(--space-3);
    border-radius: var(--card-border-radius);
    border: 1px solid var(--border-color);
}

.filter-btn {
    padding: 0.4rem 0.75rem !important;
    font-size: 0.8rem;
    border-radius: 999px !important;
    white-space: nowrap;
    transition: all 0.2s;
}

.filter-btn.active {
    background: var(--primary) !important;
    color: white !important;
}

.sort-group .sort-btn.active {
    background: var(--primary) !important;
    color: white !important;
}

/* ========================================
   UPLOAD AREA (compatto)
   ======================================== */

.upload-area {
    border: 2px dashed var(--primary);
    border-radius: var(--card-border-radius);
    padding: var(--space-4);
    text-align: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: var(--space-4);
    position: relative;
    overflow: hidden;
}

.upload-area::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--primary);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.upload-icon {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: var(--space-2);
    display: flex;
    justify-content: center;
    transition: all 0.3s ease;
}

.upload-area:hover .upload-icon {
    transform: scale(1.05) translateY(-2px);
}

.upload-area h3 {
    margin: var(--space-2) 0 var(--space-1) 0;
    color: var(--text-primary);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-base);
}

.upload-area p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.75rem;
}

/* ========================================
   DOCUMENT CARDS (griglia compatta)
   ======================================== */

#documentsList {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-3);
}

#documentsList .empty-state {
    grid-column: 1 / -1;
}

.document-card {
    background: var(--bg-card);
    border-radius: var(--card-border-radius);
    padding: var(--space-3);
    border: 1px solid var(--border-color);
    border-left: 4px solid;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.document-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

/* Category colors */
.document-card.work {
    border-left-color: #3b82f6;
}

.document-card.personal {
    border-left-color: #8b5cf6;
}

.document-card.research {
    border-left-color: #10b981;
}

.document-card.reference {
    border-left-color: #f59e0b;
}

.document-card.general {
    border-left-color: #6b7280;
}

.document-meta .document-delete-btn {
    margin-left: auto;
    padding: 0.25rem 0.5rem !important;
    font-size: 0.7rem !important;
    min-width: auto !important;
}

.document-meta .document-delete-btn i {
    font-size: 0.7rem;
}

.document-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
}

.document-title {
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.document-title i {
    color: var(--primary);
    font-size: 0.9rem;
    flex-shrink: 0;
}

.document-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    font-size: 0.7rem;
    color: var(--text-secondary);
    padding-top: var(--space-2);
    border-top: 1px solid var(--border-color);
}

.file-info {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    white-space: nowrap;
}

.file-info-filename {
    white-space: normal;
    word-break: break-word;
    min-width: 0;
}

.file-info i {
    color: var(--primary);
    opacity: 0.7;
}

.document-description {
    margin-top: var(--space-2);
    color: var(--text-secondary);
    font-size: 0.75rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========================================
   CATEGORY BADGES
   ======================================== */

.category-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: 0.65rem;
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.category-badge.work {
    background: rgba(59, 130, 246, 0.15);
    color: #1e40af;
}

.category-badge.personal {
    background: rgba(139, 92, 246, 0.15);
    color: #6d28d9;
}

.category-badge.research {
    background: rgba(16, 185, 129, 0.15);
    color: #065f46;
}

.category-badge.reference {
    background: rgba(245, 158, 11, 0.15);
    color: #92400e;
}

.category-badge.general {
    background: rgba(107, 114, 128, 0.15);
    color: #374151;
}

/* LightRAG status badges */
.document-meta .badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-full);
    font-size: 0.65rem;
    font-weight: var(--font-weight-semibold);
}
.badge.lightrag-status-processed {
    background: rgba(34, 197, 94, 0.2);
    color: #15803d;
}
.badge.lightrag-status-processing {
    background: rgba(59, 130, 246, 0.2);
    color: #1d4ed8;
}
.badge.lightrag-status-pending {
    background: rgba(245, 158, 11, 0.2);
    color: #92400e;
}
.badge.lightrag-status-failed {
    background: rgba(239, 68, 68, 0.2);
    color: #b91c1c;
}

/* ========================================
   LOADING OVERLAY
   ======================================== */

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.98);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

html[data-theme='dark'] .loading-overlay {
    background: rgba(15, 23, 42, 0.98);
}

.loading-spinner {
    width: 3rem;
    height: 3rem;
}

.app-root-hidden {
    display: none;
}

/* ========================================
   FILE INPUT
   ======================================== */

.file-input-hidden {
    display: none;
}

/* ========================================
   EMPTY STATE
   ======================================== */

.empty-state {
    text-align: center;
    padding: var(--space-10) var(--space-4);
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: var(--space-4);
    opacity: 0.5;
}

.empty-state p {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-2);
}

        .memory-dashboard {
            padding: var(--space-6) 0 var(--space-12);
            display: flex;
            flex-direction: column;
            gap: var(--space-6);
        }
   
        .action-bar {
            background: var(--bg-card);
            border-radius: var(--card-border-radius);
            padding: var(--space-4);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            display: flex;
            gap: var(--space-3);
            flex-wrap: wrap;
            align-items: center;
        }

        .filter-group {
            display: flex;
            gap: var(--space-2);
            flex-wrap: wrap;
            width: 100%;
        }

        .filter-group .search-box {
            flex: 1 1 320px;
            min-width: 240px;
            margin-left: auto;
        }

        .search-box input {
            width: 100%;
            padding: var(--space-3) var(--space-4);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            font-size: var(--font-size-base);
            background: var(--bg-surface);
            color: var(--text-primary);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .search-box input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: var(--form-focus-shadow);
        }

        .filter-btn {
            border-radius: var(--radius-full);
            border: 1px solid var(--border-color);
            background: var(--bg-surface);
            color: var(--text-secondary);
            font-weight: var(--font-weight-semibold);
            font-size: 0.9rem;
            padding: var(--space-2) var(--space-4);
            transition: all 0.3s ease;
        }

        .filter-btn:hover,
        .filter-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #ffffff;
        }

        .memories-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: var(--space-4);
        }

        .memory-card {
            background: var(--bg-card);
            border-radius: var(--card-border-radius);
            padding: var(--space-5);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border-left: 4px solid var(--primary);
        }

        .memory-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .memory-card.preference { border-left-color: var(--accent); }
        .memory-card.skill { border-left-color: var(--success); }
        .memory-card.goal { border-left-color: var(--warning); }
        .memory-card.habit { border-left-color: #8b5cf6; }
        .memory-card.project { border-left-color: var(--danger); }
        .memory-card.fact { border-left-color: var(--info); }
        .memory-card.personality { border-left-color: #7c3aed; }
        .memory-card.userinfo { border-left-color: var(--primary); }

        .memory-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            gap: var(--space-2);
            margin-bottom: var(--space-2);
        }

        .memory-category {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: var(--space-1) var(--space-3);
            border-radius: var(--radius-full);
            font-size: 0.75rem;
            font-weight: var(--font-weight-semibold);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .category-preference { background: rgba(125, 90, 255, 0.15); color: #5b21b6; }
        .category-skill { background: rgba(16, 185, 129, 0.15); color: #047857; }
        .category-goal { background: rgba(245, 158, 11, 0.18); color: #92400e; }
        .category-habit { background: rgba(139, 92, 246, 0.15); color: #5b21b6; }
        .category-project { background: rgba(239, 68, 68, 0.15); color: #b91c1c; }
        .category-fact { background: rgba(6, 182, 212, 0.15); color: #0f172a; }
        .category-personality { background: rgba(124, 58, 237, 0.15); color: #5b21b6; }
        .category-userinfo { background: rgba(99, 102, 241, 0.15); color: #3730a3; }

        .memory-actions {
            display: flex;
            gap: var(--space-2);
        }

        .memory-actions button {
            padding: var(--space-2) var(--space-3);
            border: none;
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            color: var(--text-secondary);
            cursor: pointer;
            transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
        }

        .memory-actions button:hover {
            background: var(--primary);
            color: #ffffff;
            transform: translateY(-1px);
        }

        .memory-key {
            font-weight: var(--font-weight-bold);
            color: var(--text-primary);
            font-size: 1.05rem;
            margin-bottom: var(--space-2);
        }

        .memory-value {
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: var(--space-3);
        }

        .memory-meta {
            display: flex;
            gap: var(--space-3);
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-muted);
            padding-top: var(--space-3);
            border-top: 1px solid var(--border-color);
        }

        .memory-meta span {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }

        .modal {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(15, 23, 42, 0.5);
            z-index: 9999;
            align-items: center;
            justify-content: center;
            padding: var(--space-6);
        }

        .modal.show {
            display: flex;
        }

        .modal-content {
            background: var(--bg-card);
            border-radius: var(--card-border-radius);
            padding: var(--space-6);
            max-width: 640px;
            width: 100%;
            max-height: 90vh;
            overflow-y: auto;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border-color);
        }

        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: var(--space-3);
            margin-bottom: var(--space-4);
        }

        .modal-header h2 {
            font-size: 1.5rem;
            font-weight: var(--font-weight-bold);
            color: var(--text-primary);
            margin: 0;
        }

        .modal-close {
            background: var(--bg-surface);
            border: 1px solid var(--border-color);
            border-radius: 50%;
            width: 40px;
            height: 40px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            color: var(--text-secondary);
            transition: background 0.2s ease, color 0.2s ease;
        }

        .modal-close:hover {
            background: var(--danger);
            border-color: var(--danger);
            color: #ffffff;
        }

        .form-group {
            margin-bottom: var(--space-4);
        }

        .form-group label {
            display: block;
            font-weight: var(--font-weight-semibold);
            color: var(--text-primary);
            margin-bottom: var(--space-2);
            font-size: 0.95rem;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: var(--space-3);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            background: var(--bg-surface);
            color: var(--text-primary);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

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

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

        .form-actions {
            display: flex;
            gap: var(--space-3);
            margin-top: var(--space-4);
        }

        .form-actions .btn-platform {
            flex: 1;
        }

        .empty-state {
            text-align: center;
            padding: var(--space-10) var(--space-4);
            color: var(--text-secondary);
        }

        .empty-state svg {
            width: 120px;
            height: 120px;
            margin-bottom: var(--space-4);
            opacity: 0.3;
        }

        .empty-state h3 {
            font-size: 1.4rem;
            font-weight: var(--font-weight-bold);
            color: var(--text-primary);
            margin-bottom: var(--space-2);
        }

        .empty-state .btn-platform {
            margin-top: var(--space-4);
        }

        .loading {
            text-align: center;
            padding: var(--space-6);
            color: var(--primary);
            font-size: 1.1rem;
        }

        .toast {
            position: fixed;
            top: var(--space-6);
            right: var(--space-6);
            background: var(--bg-card);
            padding: var(--space-3) var(--space-4);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-lg);
            z-index: 10000;
            display: none;
            align-items: center;
            gap: var(--space-3);
            min-width: 280px;
            color: var(--text-primary);
            border-left: 4px solid var(--primary);
        }

        .toast.show {
            display: flex;
            animation: slideIn 0.3s ease;
        }

        .toast.success {
            border-left-color: var(--success);
        }

        .toast.error {
            border-left-color: var(--danger);
        }

        @keyframes slideIn {
            from {
                transform: translateX(40px);
                opacity: 0;
            }
            to {
                transform: translateX(0);
                opacity: 1;
            }
        }

        @media (max-width: 768px) {
            .page-header {
                padding: var(--space-5);
            }

            .page-header-actions {
                width: 100%;
                justify-content: flex-start;
            }

            .search-box {
                min-width: 100%;
            }

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

            .toast {
                left: var(--space-4);
                right: var(--space-4);
            }
        }

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 768px) {
    .page-header {
        padding: var(--space-5);
        flex-direction: column;
    }

    .page-header-actions {
        width: 100%;
        justify-content: flex-start;
    }

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

    .filter-group {
        flex-direction: column;
        align-items: stretch;
    }

    .sort-group {
        margin-left: 0 !important;
    }

    .upload-area {
        padding: var(--space-3);
    }

    #documentsList {
        grid-template-columns: 1fr;
    }

    .document-header {
        flex-direction: column;
        gap: var(--space-2);
    }

    .document-meta {
        flex-direction: column;
        gap: var(--space-2);
    }
}