/*
 * Audit withGufran — Design System
 * Unified stylesheet with CSS custom properties for consistency.
 * Supports light mode, dark mode, and print.
 */

/* ============================================
   DESIGN TOKENS (CSS Custom Properties)
   Single source of truth for colors, spacing, radii.
   ============================================ */
:root {
    /* Brand */
    --brand-50: #eef2ff;
    --brand-100: #e0e7ff;
    --brand-200: #c7d2fe;
    --brand-500: #6366f1;
    --brand-600: #4f46e5;
    --brand-700: #4338ca;
    --brand-800: #3730a3;

    /* Neutral */
    --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;

    /* Status */
    --success-bg: #d1fae5; --success-text: #065f46; --success-border: #a7f3d0;
    --warning-bg: #fef3c7; --warning-text: #92400e; --warning-border: #fde68a;
    --danger-bg: #fee2e2; --danger-text: #991b1b; --danger-border: #fecaca;
    --info-bg: #dbeafe; --info-text: #1e40af; --info-border: #bfdbfe;

    /* Layout */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);

    /* Surfaces */
    --surface-primary: #ffffff;
    --surface-secondary: var(--gray-50);
    --surface-elevated: #ffffff;
    --text-primary: var(--gray-800);
    --text-secondary: var(--gray-600);
    --text-muted: var(--gray-400);
    --border-default: var(--gray-200);
    --border-subtle: var(--gray-100);
}

/* Dark mode tokens */
.dark-mode, .dark {
    --surface-primary: var(--gray-800);
    --surface-secondary: var(--gray-900);
    --surface-elevated: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-default: var(--gray-700);
    --border-subtle: #1e293b;

    --success-bg: #064e3b; --success-text: #6ee7b7;
    --warning-bg: #451a03; --warning-text: #fcd34d;
    --danger-bg: #450a0a; --danger-text: #fca5a5;
    --info-bg: #1e3a5f; --info-text: #93c5fd;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.5);

    color-scheme: dark;
}

/* ============================================
   BASE RESET & TYPOGRAPHY
   ============================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--surface-secondary);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* ============================================
   SCROLLBAR
   ============================================ */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--surface-secondary); }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-400); }
.dark-mode ::-webkit-scrollbar-track { background: var(--gray-900); }
.dark-mode ::-webkit-scrollbar-thumb { background: var(--gray-600); }

/* ============================================
   NAVIGATION
   ============================================ */
.nav-item {
    color: var(--text-secondary);
    transition: all 0.15s ease;
    border-radius: var(--radius-lg);
}
.nav-item:hover {
    background-color: var(--surface-secondary);
    color: var(--text-primary);
}
.nav-item.active {
    background: linear-gradient(135deg, var(--brand-600), #7c3aed);
    color: #ffffff;
}
.nav-item.active i { color: #ffffff; }

/* ============================================
   TRANSITIONS & INTERACTIONS
   ============================================ */
button, a, .nav-item, input, select, textarea {
    transition: all 0.15s ease;
}
button:disabled { cursor: not-allowed; opacity: 0.5; }
.hover-lift { transition: transform 0.2s ease, box-shadow 0.2s ease; }
.hover-lift:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.transition-smooth { transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1); }

/* ============================================
   CARDS
   ============================================ */
.card {
    background: var(--surface-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease;
}
.card:hover { box-shadow: var(--shadow-md); }

/* ============================================
   BUTTONS
   ============================================ */
.btn-primary {
    background: linear-gradient(135deg, var(--brand-600), var(--brand-500));
    color: #ffffff;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
}
.btn-primary:hover {
    opacity: 0.92;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
    background: var(--surface-primary);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border-default);
    cursor: pointer;
}
.btn-secondary:hover { background: var(--surface-secondary); border-color: var(--gray-400); }

.btn-danger {
    background: #dc2626;
    color: #ffffff;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
}
.btn-danger:hover { background: #b91c1c; }

/* ============================================
   STATUS BADGES (unified system)
   ============================================ */
.badge, .status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 0.2rem 0.625rem;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    white-space: nowrap;
    line-height: 1.4;
}
.badge-success, .status-badge.badge-success { background: var(--success-bg); color: var(--success-text); }
.badge-warning, .status-badge.badge-warning { background: var(--warning-bg); color: var(--warning-text); }
.badge-danger, .status-badge.badge-danger { background: var(--danger-bg); color: var(--danger-text); }
.badge-info, .status-badge.badge-info { background: var(--info-bg); color: var(--info-text); }
.badge-secondary, .status-badge.badge-secondary { background: var(--gray-100); color: var(--gray-600); }

/* ============================================
   MODULE CHIPS & FILTER CHIPS
   ============================================ */
.module-chip, .filter-chip {
    background: var(--surface-primary);
    color: var(--text-secondary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-full);
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
}
.module-chip:hover, .filter-chip:hover:not(.active) {
    background: var(--brand-50);
    border-color: var(--brand-200);
}
.module-chip.active, .filter-chip.active {
    background: var(--brand-600);
    color: #ffffff;
    border-color: var(--brand-600);
}

/* ============================================
   FORMS & INPUTS
   ============================================ */
input[type="text"], input[type="email"], input[type="password"],
input[type="number"], input[type="url"], input[type="search"],
textarea, select {
    background: var(--surface-primary);
    border: 1px solid var(--border-default);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
}
input:focus, textarea:focus, select:focus {
    border-color: var(--brand-500);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
    outline: none;
}
input::placeholder, textarea::placeholder { color: var(--text-muted); }

/* ============================================
   TABLES
   ============================================ */
table { border-collapse: collapse; width: 100%; }
table thead { background: var(--surface-secondary); }
table thead th {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    color: var(--text-secondary);
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-default);
}
table tbody tr { transition: background-color 0.1s ease; }
table tbody tr:hover { background-color: var(--surface-secondary); }
table tbody td { padding: 0.75rem 1rem; font-size: 0.875rem; border-bottom: 1px solid var(--border-subtle); }

/* ============================================
   SIDEBAR
   ============================================ */
#sidebar {
    background: var(--surface-primary);
    border-right: 1px solid var(--border-default);
    box-shadow: var(--shadow-sm);
}
.dark-mode #sidebar {
    background: #1a1a2e;
    border-color: #2a2a3e;
}

/* ============================================
   HEADER
   ============================================ */
.dark-mode header { background-color: #1a1a2e; border-color: #2a2a3e; }

/* ============================================
   DRAWER
   ============================================ */
#detailDrawer {
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.15);
    background: var(--surface-primary);
}

/* ============================================
   MODALS & DIALOGS
   ============================================ */
.modal-enter { animation: modalFadeIn 0.2s ease-out; }
@keyframes modalFadeIn {
    from { opacity: 0; transform: scale(0.96); }
    to { opacity: 1; transform: scale(1); }
}

/* ============================================
   GRADIENTS
   ============================================ */
.gradient-primary { background: linear-gradient(135deg, var(--brand-600), #7c3aed); }
.gradient-success { background: linear-gradient(135deg, #10b981, #059669); }
.gradient-warning { background: linear-gradient(135deg, #f59e0b, #d97706); }
.gradient-danger { background: linear-gradient(135deg, #ef4444, #dc2626); }

/* ============================================
   LOADING STATES
   ============================================ */
.spinner, .spinner-brand {
    border: 3px solid var(--gray-200);
    border-top-color: var(--brand-600);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.animate-spin { animation: spin 1s linear infinite; }

.skeleton {
    background: linear-gradient(90deg, var(--gray-100) 25%, var(--gray-200) 50%, var(--gray-100) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-sm);
}
.dark-mode .skeleton {
    background: linear-gradient(90deg, var(--gray-800) 25%, var(--gray-700) 50%, var(--gray-800) 75%);
    background-size: 200% 100%;
}
@keyframes skeleton-loading { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
.skeleton-text { height: 0.75rem; }
.skeleton-title { height: 1.5rem; }
.skeleton-card { height: 8rem; border-radius: var(--radius-lg); }

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideInLeft { from { transform: translateX(-100%); } to { transform: translateX(0); } }
@keyframes slideInRight { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }

.fade-in { animation: fadeIn 0.3s ease-out; }
.slide-in-left { animation: slideInLeft 0.3s ease-out; }

/* Toast */
#toastContainer > div { animation: slideInRight 0.3s ease-out; }

/* Search Modal */
#searchModal > div:last-child { animation: modalFadeIn 0.15s ease-out; }
.search-result-item:focus, .search-result-item:hover { background-color: var(--surface-secondary); outline: none; }

/* Notification dropdown */
#notifDropdown { animation: fadeInDown 0.15s ease-out; }

/* Quick Actions */
.quick-action { transition: all 0.15s ease; }
.quick-action:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.quick-action:active { transform: translateY(0); }

/* ============================================
   EMPTY STATES
   ============================================ */
.empty-state { opacity: 0.7; }
.empty-state-icon {
    width: 64px; height: 64px;
    background: var(--surface-secondary);
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto 1rem;
}

/* ============================================
   WORKSPACE TABS
   ============================================ */
.workspace-tab {
    transition: all 0.15s ease;
    cursor: pointer;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}
.workspace-tab:hover { color: var(--brand-600); }
.workspace-tab.active { border-bottom-color: var(--brand-600); color: var(--brand-600); }

/* ============================================
   ACCESSIBILITY
   ============================================ */
.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
*:focus-visible { outline: 2px solid var(--brand-600); outline-offset: 2px; }
.focus-ring:focus-visible { outline: 2px solid var(--brand-600); outline-offset: 2px; border-radius: var(--radius-sm); }
.skip-link {
    position: absolute; top: -40px; left: 0;
    background: var(--brand-600); color: white;
    padding: 8px 16px; z-index: 9999; font-size: 14px;
    transition: top 0.2s;
}
.skip-link:focus { top: 0; }

/* ============================================
   UTILITIES
   ============================================ */
.text-truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.shadow-soft { box-shadow: var(--shadow-sm); }
.border-subtle { border-color: var(--border-subtle); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    #sidebar { max-width: 280px; }
}
@media (max-width: 768px) {
    .card { border-radius: var(--radius-md); }
    table thead th, table tbody td { padding: 0.5rem 0.75rem; font-size: 0.8rem; }
}

/* ============================================
   PRINT
   ============================================ */
@media print {
    #sidebar, header, button, .no-print { display: none !important; }
    body { background: white !important; color: black !important; }
    .card { box-shadow: none; border: 1px solid #ddd; }
    table { font-size: 10px; }
}