/* ============================================================================
   WHITENG EMS - DESIGN SYSTEM 2026
   "Scholarly Trust" Color Palette with Psychology-Based Choices
   ============================================================================

   COLOR PSYCHOLOGY RATIONALE:
   - Indigo (#4f46e5): Authority, knowledge, trust (core brand)
   - Emerald (#10b981): Growth, success, achievement (positive actions)
   - Violet (#a855f7): Creativity, aspiration, AI intelligence
   - Amber (#f59e0b): Focus, motivation, attention
   - Rose (#e11d48): Critical alerts, urgency
   - Sky (#0ea5e9): Communication, clarity, calm
   - Warm Gray: Reduces digital fatigue

   2026 TRENDS INCLUDED:
   ✓ Bento Grid Layout
   ✓ Aurora Gradients
   ✓ Glassmorphism
   ✓ Spring Animations
   ✓ Soft Colored Shadows
   ✓ Dark Mode First
   ✓ Micro-interactions
   ============================================================================ */

/* ========== CSS RESET & BASE ========== */
*, *::before, *::after {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    scroll-behavior: smooth;
}

:root {
    /* ========== BRAND COLORS - "Scholarly Trust" ========== */

    /* Primary: Indigo - Authority & Knowledge */
    --primary-50: #eef2ff;
    --primary-100: #e0e7ff;
    --primary-200: #c7d2fe;
    --primary-300: #a5b4fc;
    --primary-400: #818cf8;
    --primary-500: #6366f1;
    --primary-600: #4f46e5; /* BRAND MAIN */
    --primary-700: #4338ca;
    --primary-800: #3730a3;
    --primary-900: #312e81;
    --primary-950: #1e1b4b;

    /* Success: Emerald - Growth & Achievement */
    --success-50: #ecfdf5;
    --success-100: #d1fae5;
    --success-500: #10b981;
    --success-600: #059669;
    --success-700: #047857;

    /* Warning: Amber - Focus & Motivation */
    --warning-50: #fffbeb;
    --warning-100: #fef3c7;
    --warning-500: #f59e0b;
    --warning-600: #d97706;
    --warning-700: #b45309;

    /* Danger: Rose - Critical Alerts */
    --danger-50: #fff1f2;
    --danger-100: #ffe4e6;
    --danger-500: #f43f5e;
    --danger-600: #e11d48;
    --danger-700: #be123c;

    /* Info: Sky - Communication */
    --info-50: #f0f9ff;
    --info-100: #e0f2fe;
    --info-500: #0ea5e9;
    --info-600: #0284c7;
    --info-700: #0369a1;

    /* AI Accent: Violet - Aspiration & Intelligence */
    --ai-50: #faf5ff;
    --ai-100: #f3e8ff;
    --ai-500: #a855f7;
    --ai-600: #9333ea;
    --ai-700: #7e22ce;

    /* Neutral: Warm Grays (reduce digital fatigue) */
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    --gray-950: #0a0a0a;

    /* ========== SEMANTIC TOKENS (LIGHT MODE) ========== */
    --bg-body: #fafafa;
    --bg-surface: #ffffff;
    --bg-elevated: #ffffff;
    --bg-sunken: #f5f5f5;
    --bg-hover: rgba(99, 102, 241, 0.04);
    --bg-active: rgba(99, 102, 241, 0.08);

    --text-primary: #171717;
    --text-secondary: #525252;
    --text-tertiary: #737373;
    --text-inverse: #ffffff;
    --text-link: #4f46e5;
    --text-link-hover: #4338ca;

    --border: #e5e5e5;
    --border-strong: #d4d4d4;
    --border-focus: #6366f1;

    /* ========== SHADOWS (Soft, Colored) ========== */
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.08), 0 1px 2px -1px rgb(0 0 0 / 0.08);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.08), 0 2px 4px -2px rgb(0 0 0 / 0.08);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.08);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.08), 0 8px 10px -6px rgb(0 0 0 / 0.08);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.12);

    /* Colored shadows for depth */
    --shadow-primary: 0 10px 40px -10px rgb(79 70 229 / 0.4);
    --shadow-success: 0 10px 40px -10px rgb(16 185 129 / 0.4);
    --shadow-ai: 0 10px 40px -10px rgb(168 85 247 / 0.4);

    /* ========== GRADIENTS - AURORA STYLE ========== */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-aurora: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --gradient-sunset: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --gradient-ocean: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-forest: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --gradient-ai: linear-gradient(135deg, #a855f7 0%, #6366f1 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --gradient-danger: linear-gradient(135deg, #f43f5e 0%, #e11d48 100%);
    --gradient-mesh: radial-gradient(at 40% 20%, #a855f7 0px, transparent 50%),
                     radial-gradient(at 80% 0%, #6366f1 0px, transparent 50%),
                     radial-gradient(at 0% 50%, #8b5cf6 0px, transparent 50%),
                     radial-gradient(at 80% 50%, #6366f1 0px, transparent 50%),
                     radial-gradient(at 0% 100%, #a855f7 0px, transparent 50%),
                     radial-gradient(at 80% 100%, #8b5cf6 0px, transparent 50%);

    /* ========== TYPOGRAPHY ========== */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;

    --text-xs: 0.75rem;      /* 12px */
    --text-sm: 0.875rem;     /* 14px */
    --text-base: 1rem;       /* 16px */
    --text-lg: 1.125rem;     /* 18px */
    --text-xl: 1.25rem;      /* 20px */
    --text-2xl: 1.5rem;      /* 24px */
    --text-3xl: 1.875rem;    /* 30px */
    --text-4xl: 2.25rem;     /* 36px */
    --text-5xl: 3rem;        /* 48px */

    --leading-none: 1;
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;

    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;

    /* ========== SPACING (8pt Grid) ========== */
    --space-0: 0;
    --space-1: 0.25rem;   /* 4px */
    --space-2: 0.5rem;    /* 8px */
    --space-3: 0.75rem;   /* 12px */
    --space-4: 1rem;      /* 16px */
    --space-5: 1.25rem;   /* 20px */
    --space-6: 1.5rem;    /* 24px */
    --space-8: 2rem;      /* 32px */
    --space-10: 2.5rem;   /* 40px */
    --space-12: 3rem;     /* 48px */
    --space-16: 4rem;     /* 64px */
    --space-20: 5rem;     /* 80px */

    /* ========== BORDER RADIUS (Friendly) ========== */
    --radius-sm: 0.375rem;   /* 6px */
    --radius-md: 0.5rem;     /* 8px */
    --radius-lg: 0.75rem;    /* 12px */
    --radius-xl: 1rem;       /* 16px */
    --radius-2xl: 1.5rem;    /* 24px */
    --radius-3xl: 2rem;      /* 32px */
    --radius-full: 9999px;

    /* ========== TRANSITIONS (Spring) ========== */
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

    --duration-fast: 150ms;
    --duration-normal: 250ms;
    --duration-slow: 400ms;

    /* ========== LAYOUT ========== */
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 72px;
    --topbar-height: 64px;
    --max-content-width: 1400px;

    /* ========== Z-INDEX ========== */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
}

/* ========== DARK MODE (Midnight Focus) ========== */
[data-theme="dark"] {
    --bg-body: #0a0a0f;
    --bg-surface: #111118;
    --bg-elevated: #18181f;
    --bg-sunken: #050508;
    --bg-hover: rgba(99, 102, 241, 0.1);
    --bg-active: rgba(99, 102, 241, 0.15);

    --text-primary: #fafafa;
    --text-secondary: #a3a3a3;
    --text-tertiary: #737373;
    --text-inverse: #171717;
    --text-link: #818cf8;
    --text-link-hover: #a5b4fc;

    --border: #262626;
    --border-strong: #404040;
    --border-focus: #818cf8;

    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.4), 0 1px 2px -1px rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.3);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.4), 0 8px 10px -6px rgb(0 0 0 / 0.3);
}

/* ========== BASE STYLES ========== */
body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--text-primary);
    background: var(--bg-body);
    margin: 0;
    min-height: 100vh;
    transition: background-color var(--duration-normal) var(--ease-out),
                color var(--duration-normal) var(--ease-out);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: var(--font-bold);
    letter-spacing: -0.02em;
    margin: 0;
    color: var(--text-primary);
}

h1 { font-size: var(--text-4xl); line-height: var(--leading-tight); }
h2 { font-size: var(--text-3xl); line-height: var(--leading-tight); }
h3 { font-size: var(--text-2xl); line-height: var(--leading-snug); }
h4 { font-size: var(--text-xl); line-height: var(--leading-snug); }
h5 { font-size: var(--text-lg); line-height: var(--leading-snug); }

a {
    color: var(--text-link);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out);
}

a:hover { color: var(--text-link-hover); }

/* ========== SCROLLBAR (Modern) ========== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track { background: transparent; }

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    background-clip: content-box;
}

::-webkit-scrollbar-thumb:hover { background: var(--gray-400); background-clip: content-box; }

[data-theme="dark"] ::-webkit-scrollbar-thumb { background: var(--gray-700); background-clip: content-box; }
[data-theme="dark"] ::-webkit-scrollbar-thumb:hover { background: var(--gray-600); background-clip: content-box; }

/* ========== SELECTION ========== */
::selection {
    background: var(--primary-200);
    color: var(--primary-900);
}

[data-theme="dark"] ::selection {
    background: var(--primary-800);
    color: var(--primary-100);
}

/* ========== ANIMATIONS (2026 Spring) ========== */
@keyframes fade-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in-up {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes scale-in {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes slide-in-right {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4); }
    50% { box-shadow: 0 0 0 8px rgba(99, 102, 241, 0); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes aurora {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 0.9; }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

.animate-fade-in { animation: fade-in var(--duration-slow) var(--ease-out); }
.animate-fade-in-up { animation: fade-in-up var(--duration-slow) var(--ease-out); }
.animate-scale-in { animation: scale-in var(--duration-normal) var(--ease-spring); }
.animate-slide-in-right { animation: slide-in-right var(--duration-slow) var(--ease-out); }

/* ========== COMPONENT: BUTTON ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-family: inherit;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    line-height: 1.25;
    border: 1px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-spring);
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
    position: relative;
    overflow: hidden;
}

.btn:focus-visible {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary-600);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-700);
    box-shadow: var(--shadow-primary);
    transform: translateY(-1px);
}

.btn-primary:active:not(:disabled) { transform: translateY(0); }

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

.btn-gradient:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px -10px rgb(168 85 247 / 0.6);
}

.btn-success {
    background: var(--success-600);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-success:hover:not(:disabled) {
    background: var(--success-700);
    box-shadow: var(--shadow-success);
    transform: translateY(-1px);
}

.btn-danger {
    background: var(--danger-600);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: var(--danger-700);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-surface);
    color: var(--text-primary);
    border-color: var(--border);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-hover);
    border-color: var(--border-strong);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.btn-sm { padding: var(--space-1) var(--space-3); font-size: var(--text-xs); }
.btn-lg { padding: var(--space-3) var(--space-6); font-size: var(--text-base); }
.btn-xl { padding: var(--space-4) var(--space-8); font-size: var(--text-lg); }

.btn-icon { padding: var(--space-2); aspect-ratio: 1; }

/* ========== COMPONENT: CARD ========== */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--duration-normal) var(--ease-out);
    overflow: hidden;
}

.card-hover:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    border-color: var(--primary-200);
}

.card-body { padding: var(--space-6); }
.card-header { padding: var(--space-5) var(--space-6); border-bottom: 1px solid var(--border); }
.card-footer { padding: var(--space-4) var(--space-6); border-top: 1px solid var(--border); background: var(--bg-sunken); }

/* Glassmorphism card */
.card-glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] .card-glass {
    background: rgba(24, 24, 31, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* ========== COMPONENT: INPUT ========== */
.form-field {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.form-label {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.form-label .required { color: var(--danger-600); }

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: inherit;
    font-size: var(--text-sm);
    color: var(--text-primary);
    background: var(--bg-surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--duration-fast) var(--ease-out);
    appearance: none;
}

.form-input:hover, .form-select:hover, .form-textarea:hover {
    border-color: var(--border-strong);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.form-input::placeholder, .form-textarea::placeholder {
    color: var(--text-tertiary);
}

.form-input-lg { padding: var(--space-4) var(--space-5); font-size: var(--text-base); }

.form-help { font-size: var(--text-xs); color: var(--text-tertiary); margin-top: var(--space-1); }
.form-error { font-size: var(--text-xs); color: var(--danger-600); margin-top: var(--space-1); }

.form-input-group {
    position: relative;
}

.form-input-group .form-icon {
    position: absolute;
    left: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    pointer-events: none;
}

.form-input-group .form-input { padding-left: 2.5rem; }

/* ========== COMPONENT: BADGE ========== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    line-height: 1;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-primary { background: var(--primary-100); color: var(--primary-700); }
.badge-success { background: var(--success-100); color: var(--success-700); }
.badge-warning { background: var(--warning-100); color: var(--warning-700); }
.badge-danger { background: var(--danger-100); color: var(--danger-700); }
.badge-info { background: var(--info-100); color: var(--info-700); }
.badge-ai { background: var(--ai-100); color: var(--ai-700); }
.badge-neutral { background: var(--gray-100); color: var(--gray-700); }

[data-theme="dark"] .badge-primary { background: rgba(99, 102, 241, 0.15); color: var(--primary-300); }
[data-theme="dark"] .badge-success { background: rgba(16, 185, 129, 0.15); color: #6ee7b7; }
[data-theme="dark"] .badge-warning { background: rgba(245, 158, 11, 0.15); color: #fcd34d; }
[data-theme="dark"] .badge-danger { background: rgba(244, 63, 94, 0.15); color: #fda4af; }
[data-theme="dark"] .badge-info { background: rgba(14, 165, 233, 0.15); color: #7dd3fc; }
[data-theme="dark"] .badge-neutral { background: rgba(115, 115, 115, 0.15); color: var(--gray-300); }

/* Dot badge */
.badge-dot::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

/* ========== COMPONENT: TABLE ========== */
.table-container {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}

.table thead {
    background: var(--bg-sunken);
}

.table th {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    font-weight: var(--font-semibold);
    color: var(--text-secondary);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
}

.table td {
    padding: var(--space-4);
    color: var(--text-primary);
    border-bottom: 1px solid var(--border);
}

.table tbody tr:last-child td { border-bottom: none; }

.table tbody tr {
    transition: background var(--duration-fast) var(--ease-out);
}

.table tbody tr:hover { background: var(--bg-hover); }

/* ========== COMPONENT: AVATAR ========== */
.avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--gradient-ai);
    color: white;
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    overflow: hidden;
}

.avatar-sm { width: 28px; height: 28px; font-size: var(--text-xs); }
.avatar-lg { width: 56px; height: 56px; font-size: var(--text-lg); }
.avatar-xl { width: 72px; height: 72px; font-size: var(--text-xl); }

/* ========== UTILITIES ========== */

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

/* Noise texture for depth */
.noise-texture {
    position: relative;
}

.noise-texture::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' /%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.08'/%3E%3C/svg%3E");
    pointer-events: none;
    mix-blend-mode: overlay;
}

/* Aurora background */
.aurora-bg {
    position: relative;
    background: var(--gradient-mesh);
    background-size: 200% 200%;
    animation: aurora 15s ease infinite;
}

/* Skeleton loader */
.skeleton {
    background: linear-gradient(90deg,
        var(--gray-200) 25%,
        var(--gray-100) 50%,
        var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

[data-theme="dark"] .skeleton {
    background: linear-gradient(90deg,
        var(--gray-800) 25%,
        var(--gray-700) 50%,
        var(--gray-800) 75%);
    background-size: 200% 100%;
}

/* ========== FOCUS RING (Accessibility) ========== */
:focus-visible {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
    border-radius: var(--radius-md);
}

button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline-offset: 2px;
}

/* ========== PRINT ========== */
@media print {
    .no-print { display: none !important; }
    body { background: white; color: black; }
}

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