/* ═══════════════════════════════════════════════════════════════
   RABTA AI — Design System
   Premium minimalist SaaS interface with depth & motion
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── CSS Custom Properties (Tokens) ─────────────────────────── */
:root {
  /* ── Typography ── */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --text-xs: 0.75rem;    /* 12px */
  --text-sm: 0.8125rem;  /* 13px */
  --text-base: 1rem;     /* 16px */
  --text-lg: 1.125rem;   /* 18px */
  --text-xl: 1.375rem;   /* 22px */
  --text-2xl: 1.75rem;   /* 28px */
  --text-3xl: 2.25rem;   /* 36px */
  --text-4xl: 3rem;      /* 48px */
  --text-5xl: 3.75rem;   /* 60px */

  --leading-tight: 1.15;
  --leading-normal: 1.6;

  /* ── Spacing ── */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  /* ── Layout ── */
  --max-width-landing: 1200px;
  --max-width-dashboard: 1080px;
  --gutter: 24px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* ── Motion ── */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 500ms;

  /* ── Shadows ── */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12), 0 4px 12px rgba(0,0,0,0.06);
  --shadow-xl: 0 24px 64px rgba(0,0,0,0.16), 0 8px 24px rgba(0,0,0,0.08);
  --shadow-glow: 0 0 40px rgba(16,185,129,0.2);
}

/* ── Light Mode (default) ──────────────────────────────────── */
[data-theme="light"], :root {
  --bg-primary: #FAFBFC;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #F4F6F8;
  --bg-glass: rgba(255,255,255,0.72);
  --bg-glass-border: rgba(255,255,255,0.3);
  --bg-hero-gradient: linear-gradient(135deg, #ECFDF5 0%, #F0F9FF 50%, #FDF4FF 100%);

  --text-primary: #111827;
  --text-secondary: #4B5563;
  --text-muted: #9CA3AF;

  --accent: #10B981;
  --accent-hover: #059669;
  --accent-glow: rgba(16,185,129,0.12);
  --accent-deep: #064E3B;
  --accent-surface: #ECFDF5;

  --border: #E5E7EB;
  --border-hover: #D1D5DB;
  --border-active: #10B981;

  --danger: #EF4444;
  --danger-surface: #FEF2F2;
  --warning: #F59E0B;
  --warning-surface: #FFFBEB;
  --info: #3B82F6;
  --info-surface: #EFF6FF;

  --nav-bg: rgba(250,251,252,0.82);
  --card-bg: #FFFFFF;
  --input-bg: #F9FAFB;
  --overlay-bg: rgba(0,0,0,0.4);

  --shadow-card: 0 1px 3px rgba(0,0,0,0.05), 0 4px 16px rgba(0,0,0,0.04);
  --shadow-card-hover: 0 8px 32px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.04);
}

/* ── Dark Mode ─────────────────────────────────────────────── */
[data-theme="dark"] {
  --bg-primary: #0B0F19;
  --bg-surface: #131B2E;
  --bg-surface-elevated: #1A2340;
  --bg-glass: rgba(19,27,46,0.78);
  --bg-glass-border: rgba(255,255,255,0.06);
  --bg-hero-gradient: linear-gradient(135deg, #0B0F19 0%, #0F1A2E 50%, #150D25 100%);

  --text-primary: #F3F4F6;
  --text-secondary: #9CA3AF;
  --text-muted: #6B7280;

  --accent: #34D399;
  --accent-hover: #6EE7B7;
  --accent-glow: rgba(52,211,153,0.12);
  --accent-deep: #064E3B;
  --accent-surface: rgba(52,211,153,0.08);

  --border: #1F293D;
  --border-hover: #283548;
  --border-active: #34D399;

  --danger: #F87171;
  --danger-surface: rgba(248,113,113,0.1);
  --warning: #FBBF24;
  --warning-surface: rgba(251,191,36,0.1);
  --info: #60A5FA;
  --info-surface: rgba(96,165,250,0.1);

  --nav-bg: rgba(11,15,25,0.85);
  --card-bg: #131B2E;
  --input-bg: #0A0E1A;
  --overlay-bg: rgba(0,0,0,0.6);

  --shadow-card: 0 2px 8px rgba(0,0,0,0.3), 0 8px 24px rgba(0,0,0,0.2);
  --shadow-card-hover: 0 8px 40px rgba(0,0,0,0.4), 0 4px 16px rgba(0,0,0,0.25);
}

/* ── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background: var(--bg-primary);
  transition: background-color var(--duration-normal) var(--ease-out),
              color var(--duration-normal) var(--ease-out);
  overflow-x: hidden;
}

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

img { max-width: 100%; display: block; }

::selection {
  background: var(--accent);
  color: #fff;
}

/* ── Utility Classes ───────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width-landing);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.container--narrow {
  max-width: var(--max-width-dashboard);
}

.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.font-mono { font-family: var(--font-mono); }

.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;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--text-base);
  line-height: 1;
  padding: 14px 28px;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn:active {
  transform: scale(0.97);
  transition-duration: var(--duration-fast);
}

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

.btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px var(--accent-glow);
}
.btn--primary:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 20px var(--accent-glow), var(--shadow-glow);
  transform: translateY(-1px);
}

.btn--secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn--secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

.btn--danger {
  background: var(--danger);
  color: #fff;
}
.btn--danger:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 10px 16px;
}
.btn--ghost:hover {
  color: var(--accent);
  background: var(--accent-glow);
}

.btn--sm {
  font-size: var(--text-sm);
  padding: 10px 18px;
}

.btn--lg {
  font-size: var(--text-lg);
  padding: 18px 36px;
  border-radius: var(--radius-lg);
}

.btn--icon {
  padding: 10px;
  border-radius: var(--radius-sm);
}

/* ── Cards ─────────────────────────────────────────────────── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
  box-shadow: var(--shadow-card);
}

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

.card--glass {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--bg-glass-border);
}

.card--interactive:hover {
  border-color: var(--accent);
}

.card--flat {
  box-shadow: none;
}
.card--flat:hover {
  transform: none;
  box-shadow: none;
}

/* ── Form Elements ─────────────────────────────────────────── */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

.form-input {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  outline: none;
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

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

.form-input--error {
  border-color: var(--danger);
}
.form-input--error:focus {
  box-shadow: 0 0 0 3px rgba(239,68,68,0.15);
}

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

.form-hint {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--space-1);
}

select.form-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236B7280' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

textarea.form-input {
  resize: vertical;
  min-height: 80px;
}

/* ── Navigation ────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--max-width-landing);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.nav__logo {
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav__logo-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: var(--radius-full);
  animation: pulse-dot 2s ease-in-out infinite;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
  cursor: pointer;
}
.nav__link:hover {
  color: var(--text-primary);
}

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

/* ── Theme Toggle ──────────────────────────────────────────── */
.theme-toggle {
  position: relative;
  width: 48px;
  height: 28px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--duration-normal) var(--ease-out);
  display: flex;
  align-items: center;
}

.theme-toggle__thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  background: var(--accent);
  border-radius: var(--radius-full);
  transition: transform var(--duration-normal) var(--ease-bounce);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
}

[data-theme="dark"] .theme-toggle__thumb {
  transform: translateX(20px);
}

/* ── Modal ─────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay-bg);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--gutter);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-7);
  max-width: 480px;
  width: 100%;
  box-shadow: var(--shadow-xl);
  transform: scale(0.95) translateY(8px);
  transition: transform var(--duration-normal) var(--ease-bounce);
}

.modal-overlay.active .modal {
  transform: scale(1) translateY(0);
}

.modal__title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.modal__body {
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
}

.modal__actions {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
}

/* ── Badges / Tags ─────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.badge--accent {
  background: var(--accent-surface);
  color: var(--accent);
}
.badge--danger {
  background: var(--danger-surface);
  color: var(--danger);
}
.badge--warning {
  background: var(--warning-surface);
  color: var(--warning);
}
.badge--info {
  background: var(--info-surface);
  color: var(--info);
}

/* ── Progress / Steps ──────────────────────────────────────── */
.steps {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: var(--space-7);
}

.step {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex: 1;
  position: relative;
}

.step__circle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg-surface);
  transition: all var(--duration-normal) var(--ease-out);
  flex-shrink: 0;
  z-index: 1;
}

.step.active .step__circle {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.step.completed .step__circle {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
}

.step__label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--duration-normal) var(--ease-out);
}

.step.active .step__label,
.step.completed .step__label {
  color: var(--text-primary);
}

.step__line {
  flex: 1;
  height: 2px;
  background: var(--border);
  margin: 0 var(--space-3);
  transition: background var(--duration-normal) var(--ease-out);
}

.step.completed .step__line {
  background: var(--accent);
}

/* ── Tabs (Dashboard) ──────────────────────────────────────── */
.tabs {
  display: flex;
  gap: var(--space-1);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-6);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tab {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-muted);
  padding: var(--space-3) var(--space-4);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  font-family: var(--font-sans);
}

.tab:hover {
  color: var(--text-secondary);
}

.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-panel {
  display: none;
}
.tab-panel.active {
  display: block;
  animation: fadeIn var(--duration-normal) var(--ease-out);
}

/* ── Product Card ──────────────────────────────────────────── */
.product-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

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

.product-card__name {
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-primary);
}

.product-card__price {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--accent);
}

.product-card__category {
  font-size: var(--text-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.product-card__actions {
  display: flex;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px solid var(--border);
}

/* ── Grid Layouts ──────────────────────────────────────────── */
.grid {
  display: grid;
  gap: var(--gutter);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
  .grid--2, .grid--3, .grid--4 {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .grid--3, .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ── Pricing Card ──────────────────────────────────────────── */
.pricing-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-7);
  text-align: center;
  transition: all var(--duration-normal) var(--ease-out);
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

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

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

.pricing-card--featured::before {
  content: 'Most Popular';
  position: absolute;
  top: 16px;
  right: -32px;
  background: var(--accent);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: 700;
  padding: 4px 40px;
  transform: rotate(45deg);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pricing-card__name {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-3);
}

.pricing-card__price {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--text-primary);
  line-height: var(--leading-tight);
}

.pricing-card__period {
  font-size: var(--text-sm);
  color: var(--text-muted);
  font-weight: 400;
}

.pricing-card__features {
  list-style: none;
  margin: var(--space-6) 0;
  text-align: left;
}

.pricing-card__features li {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  padding: var(--space-2) 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.pricing-card__features li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* ── Stat Card ─────────────────────────────────────────────── */
.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}

.stat-card__label {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-2);
}

.stat-card__value {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--text-primary);
  line-height: var(--leading-tight);
}

.stat-card__sub {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-top: var(--space-1);
}

/* ── Empty State ───────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: var(--space-9) var(--space-6);
  color: var(--text-muted);
}

.empty-state__icon {
  font-size: 48px;
  margin-bottom: var(--space-4);
  opacity: 0.5;
}

.empty-state__title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

.empty-state__desc {
  font-size: var(--text-sm);
  max-width: 360px;
  margin: 0 auto var(--space-5);
}

/* ── Toast / Notification ──────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.toast {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  animation: slideInRight var(--duration-normal) var(--ease-bounce);
  min-width: 300px;
}

.toast--success { border-left: 3px solid var(--accent); }
.toast--error   { border-left: 3px solid var(--danger); }
.toast--warning { border-left: 3px solid var(--warning); }

/* ── Animations / Keyframes ────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(1.4); }
}

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

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

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

/* Scroll-triggered reveal (applied via JS IntersectionObserver) */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 200ms; }
.reveal-delay-3 { transition-delay: 300ms; }
.reveal-delay-4 { transition-delay: 400ms; }

/* ── Loading Spinner ───────────────────────────────────────── */
.spinner {
  width: 24px;
  height: 24px;
  border: 2.5px solid var(--border);
  border-top-color: var(--accent);
  border-radius: var(--radius-full);
  animation: spin 0.7s linear infinite;
}

.spinner--lg {
  width: 40px;
  height: 40px;
  border-width: 3px;
}

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

/* ── Section Spacing (Landing Page) ────────────────────────── */
.section {
  padding: var(--space-9) 0;
}

.section__label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: var(--space-3);
}

.section__title {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--text-primary);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-4);
}

.section__subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 600px;
  line-height: var(--leading-normal);
}

.section__subtitle--centered {
  margin: 0 auto;
}

/* ── Mobile Nav ────────────────────────────────────────────── */
.nav__hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 24px;
  cursor: pointer;
  padding: var(--space-2);
}

@media (max-width: 768px) {
  .nav__hamburger { display: block; }

  .nav__links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--nav-bg);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: var(--space-5);
    border-bottom: 1px solid var(--border);
    gap: var(--space-4);
  }

  .nav__links.open {
    display: flex;
    animation: fadeInDown var(--duration-normal) var(--ease-out);
  }

  .section__title {
    font-size: var(--text-2xl);
  }

  .hero__title {
    font-size: var(--text-3xl) !important;
  }
}

/* ── Dashboard Layout ──────────────────────────────────────── */
.dashboard {
  padding-top: 88px;
  min-height: 100vh;
}

.dashboard__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.dashboard__title {
  font-size: var(--text-2xl);
  font-weight: 800;
}

/* ── Inline Edit ───────────────────────────────────────────── */
.inline-edit {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.inline-edit__input {
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: inherit;
  font-weight: inherit;
  outline: none;
  transition: all var(--duration-fast) var(--ease-out);
}

.inline-edit__input:hover {
  border-color: var(--border);
}

.inline-edit__input:focus {
  border-color: var(--accent);
  background: var(--input-bg);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ── Auto-Sense Flow ───────────────────────────────────────── */
.sense-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  transition: all var(--duration-normal) var(--ease-out);
}

.sense-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.sense-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.sense-card__info {
  flex: 1;
}

.sense-card__title {
  font-weight: 600;
  margin-bottom: 2px;
}

.sense-card__desc {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* Scanning animation */
.scan-animation {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-9) 0;
}

.scan-animation__rings {
  position: relative;
  width: 120px;
  height: 120px;
}

.scan-animation__ring {
  position: absolute;
  inset: 0;
  border: 2px solid var(--accent);
  border-radius: var(--radius-full);
  opacity: 0;
  animation: scanPulse 2s ease-out infinite;
}

.scan-animation__ring:nth-child(2) { animation-delay: 0.5s; }
.scan-animation__ring:nth-child(3) { animation-delay: 1s; }

@keyframes scanPulse {
  0%   { transform: scale(0.5); opacity: 0.8; }
  100% { transform: scale(1.5); opacity: 0; }
}

.scan-animation__icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
}

/* ── Scrollbar ─────────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ── Focus Visible (Accessibility) ─────────────────────────── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button:focus:not(:focus-visible),
a:focus:not(:focus-visible) {
  outline: none;
}