/*
 * POLSIA AI DESIGN SYSTEM
 * ========================
 * A modern, futuristic design system for AI-first products
 *
 * COLOR PALETTE:
 * - Primary: Electric Indigo (#6366F1) - Trust, innovation, AI
 * - Secondary: Cyan (#06B6D4) - Technology, future, digital
 * - Accent: Violet (#8B5CF6) - Creativity, intelligence
 * - Background: Deep Navy (#0F172A) - Depth, seriousness
 * - Surface: Slate (#1E293B) - Cards, elevated surfaces
 * - Text Primary: White (#FFFFFF)
 * - Text Secondary: Slate 300 (#CBD5E1)
 * - Success: Emerald (#10B981)
 * - Warning: Amber (#F59E0B)
 * - Error: Rose (#F43F5E)
 *
 * TYPOGRAPHY:
 * - Primary: Inter (clean, modern, highly legible)
 * - Mono: JetBrains Mono (code, technical elements)
 */

/* ==========================================
   RESET & BASE STYLES
   ========================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ==========================================
   CSS CUSTOM PROPERTIES (DESIGN TOKENS)
   ========================================== */
:root {
  /* Primary Colors */
  --primary-50: #EEF2FF;
  --primary-100: #E0E7FF;
  --primary-200: #C7D2FE;
  --primary-300: #A5B4FC;
  --primary-400: #818CF8;
  --primary-500: #6366F1;
  --primary-600: #4F46E5;
  --primary-700: #4338CA;
  --primary-800: #3730A3;
  --primary-900: #312E81;

  /* Secondary Colors (Cyan) */
  --secondary-50: #ECFEFF;
  --secondary-100: #CFFAFE;
  --secondary-200: #A5F3FC;
  --secondary-300: #67E8F9;
  --secondary-400: #22D3EE;
  --secondary-500: #06B6D4;
  --secondary-600: #0891B2;
  --secondary-700: #0E7490;
  --secondary-800: #155E75;
  --secondary-900: #164E63;

  /* Accent Colors (Violet) */
  --accent-50: #F5F3FF;
  --accent-100: #EDE9FE;
  --accent-200: #DDD6FE;
  --accent-300: #C4B5FD;
  --accent-400: #A78BFA;
  --accent-500: #8B5CF6;
  --accent-600: #7C3AED;
  --accent-700: #6D28D9;
  --accent-800: #5B21B6;
  --accent-900: #4C1D95;

  /* Neutral Colors (Slate) */
  --slate-50: #F8FAFC;
  --slate-100: #F1F5F9;
  --slate-200: #E2E8F0;
  --slate-300: #CBD5E1;
  --slate-400: #94A3B8;
  --slate-500: #64748B;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1E293B;
  --slate-900: #0F172A;
  --slate-950: #020617;

  /* Semantic Colors */
  --success-500: #10B981;
  --success-600: #059669;
  --warning-500: #F59E0B;
  --warning-600: #D97706;
  --error-500: #F43F5E;
  --error-600: #E11D48;

  /* Background & Surface */
  --bg-primary: #0F172A;
  --bg-secondary: #1E293B;
  --bg-tertiary: #334155;
  --surface-elevated: #1E293B;
  --surface-overlay: rgba(30, 41, 59, 0.95);

  /* Text Colors */
  --text-primary: #FFFFFF;
  --text-secondary: #CBD5E1;
  --text-tertiary: #94A3B8;
  --text-muted: #64748B;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #6366F1 0%, #8B5CF6 50%, #06B6D4 100%);
  --gradient-glow: linear-gradient(135deg, rgba(99, 102, 241, 0.4) 0%, rgba(139, 92, 246, 0.4) 50%, rgba(6, 182, 212, 0.4) 100%);
  --gradient-subtle: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
  --gradient-dark: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
  --shadow-glow-sm: 0 0 20px rgba(99, 102, 241, 0.2);

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Typography Scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-7xl: 4.5rem;

  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;

  /* Font Weights */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;

  /* Z-Index Scale */
  --z-base: 0;
  --z-dropdown: 10;
  --z-sticky: 20;
  --z-fixed: 30;
  --z-modal-backdrop: 40;
  --z-modal: 50;
  --z-popover: 60;
  --z-tooltip: 70;
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
  color: var(--text-primary);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

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

.text-hero {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: var(--font-bold);
  line-height: var(--leading-none);
  letter-spacing: -0.02em;
}

.text-display {
  font-size: clamp(2rem, 4vw, 3.75rem);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
}

.text-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
}

.text-subtitle {
  font-size: var(--text-xl);
  color: var(--text-secondary);
  font-weight: var(--font-normal);
}

.text-body {
  font-size: var(--text-base);
  color: var(--text-secondary);
}

.text-body-lg {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

.text-caption {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
}

.text-mono {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
}

/* ==========================================
   LAYOUT
   ========================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container-sm {
  max-width: 640px;
}

.container-md {
  max-width: 768px;
}

.container-lg {
  max-width: 1024px;
}

.section {
  padding: var(--space-20) 0;
}

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

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 768px) {
  .grid-cols-2, .grid-cols-3 {
    grid-template-columns: 1fr;
  }
}

/* Flexbox Utilities */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

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

.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* ==========================================
   BUTTONS
   ========================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  line-height: 1;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}

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

/* Primary Button */
.btn-primary {
  background: var(--gradient-primary);
  color: var(--text-primary);
  box-shadow: var(--shadow-md), var(--shadow-glow-sm);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

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

/* Secondary Button */
.btn-secondary {
  background: var(--surface-elevated);
  color: var(--text-primary);
  border: 1px solid var(--slate-600);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--bg-tertiary);
  border-color: var(--slate-500);
}

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

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

/* Button Sizes */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

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

.btn-xl {
  padding: var(--space-5) var(--space-10);
  font-size: var(--text-xl);
}

/* ==========================================
   CARDS
   ========================================== */
.card {
  background: var(--surface-elevated);
  border: 1px solid var(--slate-700);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-base);
}

.card-hover:hover {
  border-color: var(--slate-600);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-glow {
  position: relative;
  overflow: hidden;
}

.card-glow::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-primary);
  opacity: 0.5;
}

.card-header {
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--slate-700);
}

.card-title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
}

.card-description {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-top: var(--space-1);
}

/* ==========================================
   FORMS
   ========================================== */
.form-group {
  margin-bottom: var(--space-6);
}

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

.form-label-required::after {
  content: ' *';
  color: var(--error-500);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 1px solid var(--slate-600);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

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

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

.form-hint {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-top: var(--space-2);
}

.form-error {
  font-size: var(--text-sm);
  color: var(--error-500);
  margin-top: var(--space-2);
}

/* ==========================================
   NAVIGATION
   ========================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: var(--surface-overlay);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--slate-800);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--text-primary);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
}

.navbar-logo {
  width: 32px;
  height: 32px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
}

.navbar-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: var(--font-medium);
  transition: color var(--transition-fast);
}

.navbar-link:hover {
  color: var(--text-primary);
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: 72px;
}

.hero-background {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
}

.hero-orb-1 {
  width: 600px;
  height: 600px;
  background: var(--primary-600);
  top: -200px;
  right: -100px;
}

.hero-orb-2 {
  width: 400px;
  height: 400px;
  background: var(--accent-600);
  bottom: -100px;
  left: -100px;
}

.hero-orb-3 {
  width: 300px;
  height: 300px;
  background: var(--secondary-500);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  padding: var(--space-8);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--surface-elevated);
  border: 1px solid var(--slate-700);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-8);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--success-500);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

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

.hero-title {
  margin-bottom: var(--space-6);
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-10);
  line-height: var(--leading-relaxed);
}

.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.hero-cta-hint {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
}

/* ==========================================
   FEATURES SECTION
   ========================================== */
.feature-card {
  text-align: center;
  padding: var(--space-8);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-6);
  background: var(--gradient-subtle);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
}

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

.feature-description {
  color: var(--text-tertiary);
  line-height: var(--leading-relaxed);
}

/* ==========================================
   DASHBOARD COMPONENTS
   ========================================== */
.dashboard-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
  padding-top: 72px;
}

@media (max-width: 1024px) {
  .dashboard-layout {
    grid-template-columns: 1fr;
  }
}

.sidebar {
  background: var(--surface-elevated);
  border-right: 1px solid var(--slate-800);
  padding: var(--space-6);
  position: sticky;
  top: 72px;
  height: calc(100vh - 72px);
  overflow-y: auto;
}

@media (max-width: 1024px) {
  .sidebar {
    display: none;
  }
}

.sidebar-section {
  margin-bottom: var(--space-8);
}

.sidebar-title {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

.sidebar-nav {
  list-style: none;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  margin-bottom: var(--space-1);
}

.sidebar-link:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.sidebar-link.active {
  background: var(--gradient-subtle);
  color: var(--primary-400);
}

.main-content {
  padding: var(--space-8);
  max-width: 1000px;
}

/* Stats Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.stat-card {
  background: var(--surface-elevated);
  border: 1px solid var(--slate-700);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  margin-bottom: var(--space-2);
}

.stat-value {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
}

.stat-change {
  font-size: var(--text-sm);
  margin-top: var(--space-2);
}

.stat-change.positive {
  color: var(--success-500);
}

.stat-change.negative {
  color: var(--error-500);
}

/* Activity Feed */
.activity-feed {
  list-style: none;
}

.activity-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--slate-800);
}

.activity-item:last-child {
  border-bottom: none;
}

.activity-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--gradient-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.activity-content {
  flex: 1;
}

.activity-title {
  font-weight: var(--font-medium);
  color: var(--text-primary);
  margin-bottom: var(--space-1);
}

.activity-description {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
}

.activity-time {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--space-2);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-8);
}

.empty-state-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-6);
  background: var(--gradient-subtle);
  border-radius: var(--radius-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-3xl);
}

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

.empty-state-description {
  color: var(--text-tertiary);
  max-width: 400px;
  margin: 0 auto;
}

/* ==========================================
   BADGES & TAGS
   ========================================== */
.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-medium);
  border-radius: var(--radius-full);
  background: var(--slate-700);
  color: var(--text-secondary);
}

.badge-primary {
  background: rgba(99, 102, 241, 0.2);
  color: var(--primary-400);
}

.badge-success {
  background: rgba(16, 185, 129, 0.2);
  color: var(--success-500);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.2);
  color: var(--warning-500);
}

.badge-error {
  background: rgba(244, 63, 94, 0.2);
  color: var(--error-500);
}

/* ==========================================
   LOADING STATES
   ========================================== */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--slate-800) 25%,
    var(--slate-700) 50%,
    var(--slate-800) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-md);
}

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

.skeleton-text {
  height: 1em;
  margin-bottom: var(--space-2);
}

.skeleton-title {
  height: 1.5em;
  width: 60%;
}

.skeleton-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
}

/* Spinner */
.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--slate-700);
  border-top-color: var(--primary-500);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ==========================================
   ANIMATIONS
   ========================================== */
.fade-in {
  animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.slide-up {
  animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.float {
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ==========================================
   UTILITIES
   ========================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.hidden { display: none; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 768px) {
  .hero-content {
    padding: var(--space-4);
  }

  .hero-title {
    font-size: var(--text-3xl);
  }

  .hero-subtitle {
    font-size: var(--text-base);
  }

  .container {
    padding: 0 var(--space-4);
  }

  .section {
    padding: var(--space-12) 0;
  }

  h1 { font-size: var(--text-3xl); }
  h2 { font-size: var(--text-2xl); }
  h3 { font-size: var(--text-xl); }
}