/* ============================================================
   MATERIAL — Google's Design Language
   Systematic elevation, mathematical shadows, digital paper.
   ============================================================ */

/* ------------------------------------------------------------
   0. DESIGN TOKENS
   ------------------------------------------------------------ */
:root {
  --font: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Roboto Mono', monospace;

  /* ---- MD3 Color Scheme (Purple) ---- */
  --md-primary: #6750A4;
  --md-on-primary: #FFFFFF;
  --md-primary-container: #EADDFF;
  --md-on-primary-container: #21005D;

  --md-secondary: #625B71;
  --md-on-secondary: #FFFFFF;
  --md-secondary-container: #E8DEF8;
  --md-on-secondary-container: #1D192B;

  --md-tertiary: #7D5260;
  --md-on-tertiary: #FFFFFF;
  --md-tertiary-container: #FFD8E4;
  --md-on-tertiary-container: #31111D;

  --md-error: #B3261E;
  --md-on-error: #FFFFFF;
  --md-error-container: #F9DEDC;
  --md-on-error-container: #410E0B;

  --md-surface: #FFFBFE;
  --md-on-surface: #1C1B1F;
  --md-surface-variant: #E7E0EC;
  --md-on-surface-variant: #49454F;

  --md-surface-dim: #DED8E1;
  --md-surface-bright: #FFFBFE;
  --md-surface-container-lowest: #FFFFFF;
  --md-surface-container-low: #F7F2FA;
  --md-surface-container: #F3EDF7;
  --md-surface-container-high: #ECE6F0;
  --md-surface-container-highest: #E6E0E9;

  --md-outline: #79747E;
  --md-outline-variant: #CAC4D0;

  --md-inverse-surface: #313033;
  --md-inverse-on-surface: #F4EFF4;

  /* ---- Elevation shadows (MD3 spec) ---- */
  --md-elevation-0: none;
  --md-elevation-1: 0 1px 2px rgba(0,0,0,0.3), 0 1px 3px 1px rgba(0,0,0,0.15);
  --md-elevation-2: 0 1px 2px rgba(0,0,0,0.3), 0 2px 6px 2px rgba(0,0,0,0.15);
  --md-elevation-3: 0 4px 8px 3px rgba(0,0,0,0.15), 0 1px 3px rgba(0,0,0,0.3);
  --md-elevation-4: 0 6px 10px 4px rgba(0,0,0,0.15), 0 2px 3px rgba(0,0,0,0.3);
  --md-elevation-5: 0 8px 12px 6px rgba(0,0,0,0.15), 0 4px 4px rgba(0,0,0,0.3);

  /* Scaled versions for control panel */
  --md-elev-scale: 1;

  /* ---- Shape tokens (MD3) ---- */
  --md-radius: 16px;
  --md-radius-xs: 8px;
  --md-radius-sm: 12px;
  --md-radius-lg: 28px;
  --md-radius-full: 9999px;

  /* ---- Motion tokens (MD3) ---- */
  --md-duration-short: 100ms;
  --md-duration-medium: 300ms;
  --md-duration-long: 500ms;
  --md-easing-standard: cubic-bezier(0.2, 0, 0, 1);
  --md-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --md-easing-decelerate: cubic-bezier(0, 0, 0, 1);
  --md-easing-accelerate: cubic-bezier(0.3, 0, 0.8, 0.15);

  /* ---- Typography (MD3 Type Scale) ---- */
  --md-display-large: 700 3.5625rem/1.12 var(--font);
  --md-display-medium: 700 2.8125rem/1.16 var(--font);
  --md-headline-large: 700 2rem/1.25 var(--font);
  --md-headline-medium: 700 1.75rem/1.29 var(--font);
  --md-title-large: 700 1.375rem/1.27 var(--font);
  --md-title-medium: 500 1rem/1.5 var(--font);
  --md-body-large: 400 1rem/1.5 var(--font);
  --md-body-medium: 400 0.875rem/1.43 var(--font);
  --md-body-small: 400 0.75rem/1.33 var(--font);
  --md-label-large: 500 0.875rem/1.43 var(--font);
  --md-label-medium: 500 0.75rem/1.33 var(--font);
  --md-label-small: 500 0.6875rem/1.45 var(--font);

  /* ---- Layout ---- */
  --md-nav-height: 64px;
}

/* Dark mode */
[data-theme="dark"] {
  --md-primary: #D0BCFF;
  --md-on-primary: #381E72;
  --md-primary-container: #4F378B;
  --md-on-primary-container: #EADDFF;

  --md-secondary: #CCC2DC;
  --md-on-secondary: #332D41;
  --md-secondary-container: #4A4458;
  --md-on-secondary-container: #E8DEF8;

  --md-tertiary: #EFB8C8;
  --md-on-tertiary: #492532;
  --md-tertiary-container: #633B48;
  --md-on-tertiary-container: #FFD8E4;

  --md-error: #F2B8B5;
  --md-on-error: #601410;
  --md-error-container: #8C1D18;
  --md-on-error-container: #F9DEDC;

  --md-surface: #1C1B1F;
  --md-on-surface: #E6E1E5;
  --md-surface-variant: #49454F;
  --md-on-surface-variant: #CAC4D0;

  --md-surface-dim: #141218;
  --md-surface-bright: #3B383E;
  --md-surface-container-lowest: #0F0D13;
  --md-surface-container-low: #1D1B20;
  --md-surface-container: #211F26;
  --md-surface-container-high: #2B2930;
  --md-surface-container-highest: #36343B;

  --md-outline: #938F99;
  --md-outline-variant: #49454F;

  --md-inverse-surface: #E6E1E5;
  --md-inverse-on-surface: #313033;
}


/* ------------------------------------------------------------
   1. RESET & BASE
   ------------------------------------------------------------ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font: var(--md-body-large);
  color: var(--md-on-surface);
  background: var(--md-surface);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color 0.4s var(--md-easing-emphasized), color 0.4s var(--md-easing-emphasized);
}

/* Smooth theme transition for all surfaces */
.md-card, .md-nav, .md-footer, .control-panel__toggle,
.control-panel__body, .nav-rail, .hero-preview,
.hero-preview__bar, .hero-preview__sidebar,
.component-showcase, .faq-question, .faq-item,
.md-field__input, .md-chip, .md-btn,
.md-seg-btn, .md-switch__track, .md-checkbox__box {
  transition: background-color 0.4s var(--md-easing-emphasized),
              color 0.4s var(--md-easing-emphasized),
              border-color 0.4s var(--md-easing-emphasized),
              box-shadow 0.4s var(--md-easing-emphasized);
}

a { text-decoration: none; color: inherit; }
button { border: none; background: none; cursor: pointer; font-family: inherit; color: inherit; }
ul { list-style: none; }
img, svg { display: block; max-width: 100%; }
code { font: var(--md-body-small); font-family: var(--font-mono); }

::selection { background: var(--md-primary); color: var(--md-on-primary); }
:focus-visible { outline: 2px solid var(--md-primary); outline-offset: 2px; border-radius: 4px; }

.skip-link:focus { top: 16px; }


/* ------------------------------------------------------------
   30. BACK TO TOP
   ------------------------------------------------------------ */
.back-to-top {
  position: fixed;
  bottom: 80px;
  right: 24px;
  z-index: 140;
  width: 44px;
  height: 44px;
  border-radius: var(--md-radius-full);
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
  border: 1px solid var(--md-outline-variant);
  box-shadow: var(--md-elevation-2);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.3s var(--md-easing-standard),
              transform 0.3s var(--md-easing-standard),
              background 0.2s var(--md-easing-standard),
              box-shadow 0.2s var(--md-easing-standard);
  pointer-events: none;
}

.back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  box-shadow: var(--md-elevation-3);
}

.back-to-top:active {
  transform: scale(0.92);
}

@media (max-width: 640px) {
  .back-to-top { bottom: 72px; right: 16px; width: 40px; height: 40px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}


/* ------------------------------------------------------------
   2. RIPPLE EFFECT (Material)
   ------------------------------------------------------------ */
.ripple-container { position: relative; overflow: hidden; }
.ripple {
  position: absolute;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.12;
  transform: scale(0);
  animation: md-ripple-expand 0.6s var(--md-easing-standard);
  pointer-events: none;
}

@keyframes md-ripple-expand {
  to { transform: scale(4); opacity: 0; }
}


/* ------------------------------------------------------------
   3. BUTTONS (MD3)
   ------------------------------------------------------------ */
.md-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 24px;
  border-radius: var(--md-radius-full);
  font: var(--md-label-large);
  letter-spacing: 0.1px;
  transition: all var(--md-duration-medium) var(--md-easing-standard);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

/* State layer — hover/focus/pressed overlay */
.md-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: currentColor;
  opacity: 0;
  transition: opacity var(--md-duration-short) var(--md-easing-standard);
  pointer-events: none;
}
.md-btn:hover::before { opacity: 0.08; }
.md-btn:focus-visible::before { opacity: 0.12; }
.md-btn:active::before { opacity: 0.12; }

/* Filled */
.md-btn--filled {
  background: var(--md-primary);
  color: var(--md-on-primary);
  box-shadow: var(--md-elevation-0);
}
.md-btn--filled:hover { box-shadow: var(--md-elevation-1); }

/* Outlined */
.md-btn--outlined {
  background: transparent;
  color: var(--md-primary);
  border: 1px solid var(--md-outline);
}

/* Text */
.md-btn--text {
  background: transparent;
  color: var(--md-primary);
  padding: 0 12px;
}

/* Tonal */
.md-btn--tonal {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}
.md-btn--tonal:hover { box-shadow: var(--md-elevation-1); }

/* Elevated */
.md-btn--elevated {
  background: var(--md-surface-container-low);
  color: var(--md-primary);
  box-shadow: var(--md-elevation-1);
}
.md-btn--elevated:hover { box-shadow: var(--md-elevation-2); }

/* Error filled */
.md-btn--error {
  background: var(--md-error);
  color: var(--md-on-error);
}

/* Icon button */
.md-btn--icon {
  width: 40px;
  padding: 0;
  border-radius: var(--md-radius-full);
}

/* With label */
.md-btn--icon-label { padding: 0 16px 0 12px; }

/* Touch-friendly button states */
.md-btn:active { transform: scale(0.97); }

.md-btn--lg { height: 48px; padding: 0 32px; font-size: 0.9375rem; }
.btn--full { width: 100%; }


/* ------------------------------------------------------------
   4. FAB (Floating Action Button)
   ------------------------------------------------------------ */
.md-fab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all var(--md-duration-medium) var(--md-easing-standard);
}

.md-fab--primary {
  width: 56px;
  height: 56px;
  border-radius: var(--md-radius-lg);
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  box-shadow: var(--md-elevation-3);
}
.md-fab--primary:hover { box-shadow: var(--md-elevation-4); }

.md-fab--small {
  width: 40px;
  height: 40px;
  border-radius: var(--md-radius-sm);
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  box-shadow: var(--md-elevation-3);
}
.md-fab--small:hover { box-shadow: var(--md-elevation-4); }


/* ------------------------------------------------------------
   5. CHIPS (MD3)
   ------------------------------------------------------------ */
.md-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 32px;
  padding: 0 16px;
  -webkit-tap-highlight-color: transparent;
  border-radius: 8px;
  font: var(--md-label-large);
  letter-spacing: 0.1px;
  border: 1px solid var(--md-outline);
  background: transparent;
  color: var(--md-on-surface);
  cursor: pointer;
  transition: all var(--md-duration-short) var(--md-easing-standard);
  white-space: nowrap;
}

.md-chip:hover { background: rgba(28, 27, 31, 0.08); }
[data-theme="dark"] .md-chip:hover { background: rgba(230, 225, 229, 0.08); }

.md-chip--assist { border-color: var(--md-outline); }
.md-chip--filter { border-color: var(--md-outline); }
.md-chip--filter.md-chip--selected {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
  border-color: transparent;
}
.md-chip--input { border-color: var(--md-outline); }
.md-chip--suggestion { border-color: var(--md-outline); }

.md-chip__icon { font-size: 18px; margin-left: -4px; }


/* ------------------------------------------------------------
   6. CARDS (MD3)
   ------------------------------------------------------------ */
.md-card {
  border-radius: var(--md-radius);
  transition: box-shadow var(--md-duration-medium) var(--md-easing-standard),
              background-color 0.3s var(--md-easing-standard);
  position: relative;
  overflow: hidden;
}

/* Elevated card */
.md-card--elevated {
  background: var(--md-surface-container-low);
  box-shadow: var(--md-elevation-1);
}
.md-card--elevated:hover { box-shadow: var(--md-elevation-2); }

/* Outlined card */
.md-card--outlined {
  background: var(--md-surface);
  border: 1px solid var(--md-outline-variant);
}

/* Featured */
.md-card--featured {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  position: relative;
}

.md-card--featured::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--md-primary);
  border-radius: var(--md-radius) var(--md-radius) 0 0;
}

.md-card__media {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.md-card__media-icon {
  font-size: 48px;
  color: rgba(255, 255, 255, 0.7);
}

.md-card__content {
  padding: 16px;
}

.md-card__content--compact { padding: 20px; }
.md-card__content--center { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 8px; }

.md-card__title {
  font: var(--md-title-large);
  margin-bottom: 4px;
}

.md-card__subtitle {
  font: var(--md-body-medium);
  color: var(--md-on-surface-variant);
  margin-bottom: 12px;
}

.md-card__body {
  font: var(--md-body-medium);
  color: var(--md-on-surface-variant);
  line-height: 1.6;
}

.md-card__actions {
  display: flex;
  gap: 8px;
  padding: 8px;
  justify-content: flex-end;
}


/* ------------------------------------------------------------
   7. AVATARS
   ------------------------------------------------------------ */
.md-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--md-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.md-avatar--small { width: 32px; height: 32px; }
.md-avatar--small .material-icons-outlined { font-size: 18px; }

.md-avatar--filled { background: var(--md-primary); color: var(--md-on-primary); }
.md-avatar--green { background: #d4edda; color: #155724; }
.md-avatar--amber { background: #fff3cd; color: #856404; }
.md-avatar--primary { background: var(--md-primary-container); color: var(--md-on-primary-container); }

[data-theme="dark"] .md-avatar--green { background: rgba(46, 125, 50, 0.3); color: #81c784; }
[data-theme="dark"] .md-avatar--amber { background: rgba(255, 152, 0, 0.3); color: #ffb74d; }


/* ------------------------------------------------------------
   8. BADGES
   ------------------------------------------------------------ */
.md-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: var(--md-radius-full);
  font: var(--md-label-small);
  background: var(--md-error);
  color: var(--md-on-error);
}

.md-badge--primary {
  background: var(--md-primary);
  color: var(--md-on-primary);
  padding: 6px 16px;
  height: auto;
  margin-bottom: 8px;
}

.md-badge--success { background: #2e7d32; color: white; }
.md-badge--error { background: var(--md-error); color: var(--md-on-error); }


/* ------------------------------------------------------------
   9. NAVIGATION (MD3 Top App Bar)
   ------------------------------------------------------------ */
.md-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--md-surface);
  box-shadow: var(--md-elevation-0);
  transition: box-shadow var(--md-duration-medium) var(--md-easing-standard),
              background-color 0.3s var(--md-easing-standard);
}

.md-nav--scrolled { box-shadow: var(--md-elevation-2); }

.md-nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
  height: var(--md-nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.md-nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font: var(--md-title-large);
  color: var(--md-on-surface);
}

.md-nav__icon { font-size: 28px; color: var(--md-primary); }

.md-nav__links { display: flex; gap: 4px; }

.md-nav__link {
  padding: 8px 16px;
  border-radius: var(--md-radius-full);
  font: var(--md-label-large);
  color: var(--md-on-surface-variant);
  transition: all var(--md-duration-short) var(--md-easing-standard);
}

.md-nav__link:hover {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
}

.md-nav__actions { display: flex; align-items: center; gap: 8px; }
.nav__cta { font-size: 0.875rem; }

/* Icon button */
.md-icon-btn {
  width: 40px;
  height: 40px;
  min-width: 48px;
  min-height: 48px;
  border-radius: var(--md-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--md-on-surface-variant);
  transition: background var(--md-duration-short) var(--md-easing-standard),
              transform 0.4s var(--md-easing-emphasized);
}

.md-icon-btn:active {
  transform: scale(0.9);
}

.md-icon-btn:hover { background: var(--md-surface-container-high); }

.theme-toggle__icon--light {
  display: none;
  transform: rotate(-90deg);
  opacity: 0;
  transition: transform 0.4s var(--md-easing-emphasized), opacity 0.3s;
}
[data-theme="dark"] .theme-toggle__icon--dark { display: none; }
[data-theme="dark"] .theme-toggle__icon--light { display: block; transform: rotate(0deg); opacity: 1; }

/* Touch-friendly icon buttons */
/* Hamburger */
.md-nav__hamburger {
  display: none;
  width: 48px;
  height: 48px;
  border-radius: var(--md-radius-full);
  align-items: center;
  justify-content: center;
  color: var(--md-on-surface-variant);
  transition: background var(--md-duration-short) var(--md-easing-standard);
  -webkit-tap-highlight-color: transparent;
}

.md-nav__hamburger:hover { background: var(--md-surface-container-high); }

.md-nav__mobile-menu {
  display: none;
  flex-direction: column;
  padding: 8px 16px 16px;
  gap: 4px;
}

.md-nav__mobile-menu .md-nav__link {
  padding: 14px 16px;
  width: 100%;
  border-radius: var(--md-radius-sm);
  font: var(--md-label-large);
  color: var(--md-on-surface-variant);
  transition: background var(--md-duration-short) var(--md-easing-standard),
              color var(--md-duration-short) var(--md-easing-standard);
}

.md-nav__mobile-menu .md-nav__link:hover {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
}

.md-nav__mobile-actions { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }


/* ------------------------------------------------------------
   10. HERO
   ------------------------------------------------------------ */
.md-hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--md-nav-height) + 40px) 24px 60px;
  max-width: 1200px;
  margin: 0 auto;
  gap: 64px;
}

/* Subtle background pattern for visual depth */
.md-hero::before {
  content: '';
  position: absolute;
  top: 0; left: -10%; right: -10%; bottom: 0;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, var(--md-primary-container) 0%, transparent 70%);
  opacity: 0.4;
  z-index: -1;
  pointer-events: none;
}

[data-theme="dark"] .md-hero::before {
  background: radial-gradient(ellipse 80% 50% at 50% 0%, var(--md-primary-container) 0%, transparent 70%);
  opacity: 0.15;
}

.md-hero__content { max-width: 540px; text-align: left; }
.hero__badge { margin-bottom: 24px; }

/* Hero entrance choreography */
.md-hero__badge-anim,
.md-hero__title-anim,
.md-hero__subtitle-anim,
.md-hero__ctas-anim,
.md-hero__proof-anim,
.md-hero__visual-anim {
  opacity: 0;
  transform: translateY(24px);
  animation: hero-enter 0.7s var(--md-easing-decelerate) forwards;
}

.md-hero__badge-anim { animation-delay: 0.1s; }
.md-hero__title-anim { animation-delay: 0.25s; }
.md-hero__subtitle-anim { animation-delay: 0.4s; }
.md-hero__ctas-anim { animation-delay: 0.55s; }
.md-hero__proof-anim { animation-delay: 0.7s; }
.md-hero__visual-anim { animation-delay: 0.3s; transform: translateY(32px) scale(0.97); animation-name: hero-visual-enter; }

@keyframes hero-enter {
  to { opacity: 1; transform: translateY(0); }
}

@keyframes hero-visual-enter {
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@media (prefers-reduced-motion: reduce) {
  .md-hero__badge-anim,
  .md-hero__title-anim,
  .md-hero__subtitle-anim,
  .md-hero__ctas-anim,
  .md-hero__proof-anim,
  .md-hero__visual-anim {
    opacity: 1;
    transform: none;
    animation: none;
  }
}

.md-hero__title {
  font: var(--md-display-large);
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  color: var(--md-on-surface);
}

.md-hero__title-accent {
  color: var(--md-primary);
}

.md-hero__subtitle {
  font: var(--md-body-large);
  color: var(--md-on-surface-variant);
  line-height: 1.7;
  margin-bottom: 40px;
}

.md-hero__ctas {
  display: flex;
  gap: 12px;
  justify-content: flex-start;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

/* Hero proof stats */
.md-hero__proof {
  display: flex;
  align-items: center;
  gap: 24px;
}
.md-hero__proof-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.md-hero__proof-num {
  font: var(--md-title-large);
  color: var(--md-on-surface);
}
.md-hero__proof-label {
  font: var(--md-label-medium);
  color: var(--md-on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.md-hero__proof-divider {
  width: 1px;
  height: 32px;
  background: var(--md-outline-variant);
}

/* Hero visual — mini dashboard preview */
.md-hero__visual {
  flex: 1;
  max-width: 560px;
  display: flex;
  justify-content: center;
}
.hero-preview {
  width: 100%;
  border-radius: var(--md-radius);
  overflow: hidden;
  transition: transform var(--md-duration-medium) var(--md-easing-standard),
              box-shadow var(--md-duration-medium) var(--md-easing-standard);
}

.hero-preview:hover {
  transform: translateY(-4px);
  box-shadow: var(--md-elevation-3);
}

.hero-preview:hover .hero-preview__sidebar {
  background: var(--md-surface-container);
}
.hero-preview__bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--md-surface-container);
  border-bottom: 1px solid var(--md-outline-variant);
}
.hero-preview__dots {
  display: flex;
  gap: 6px;
}
.hero-preview__dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--md-outline-variant);
}
.hero-preview__dots span:first-child { background: var(--md-error); }
.hero-preview__dots span:nth-child(2) { background: #F59E0B; }
.hero-preview__dots span:last-child { background: #22C55E; }
.hero-preview__title {
  font: var(--md-label-medium);
  color: var(--md-on-surface-variant);
}
.hero-preview__body {
  display: flex;
  min-height: 240px;
}
.hero-preview__sidebar {
  width: 56px;
  background: var(--md-surface-container-low);
  border-right: 1px solid var(--md-outline-variant);
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.hero-preview__nav-item {
  height: 36px;
  border-radius: var(--md-radius-xs);
  background: transparent;
  transition: background var(--md-duration-short) var(--md-easing-standard);
}

.hero-preview:hover .hero-preview__nav-item:not(.hero-preview__nav-item--active) {
  background: var(--md-surface-container-high);
}
.hero-preview__nav-item--active {
  background: var(--md-primary-container);
  transition: background var(--md-duration-short) var(--md-easing-standard);
}
.hero-preview__main {
  flex: 1;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.hero-preview__stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.hero-preview__stat {
  border-radius: var(--md-radius-xs);
  background: var(--md-surface-container-lowest);
  border: 1px solid var(--md-outline-variant);
  transition: background var(--md-duration-short) var(--md-easing-standard),
              border-color var(--md-duration-short) var(--md-easing-standard);
}
.hero-preview__chart {
  flex: 1;
  border-radius: var(--md-radius-xs);
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline-variant);
  min-height: 120px;
  transition: background var(--md-duration-short) var(--md-easing-standard);
}

.hero-preview:hover .hero-preview__chart {
  background: var(--md-surface-container-lowest);
}

.md-fab.md-fab--primary {
  /* Removed fixed FAB — was overlapping control panel */
}

/* Section headers */
.md-section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

/* Visual separator between sections */
.md-section-divider {
  width: 48px;
  height: 3px;
  background: var(--md-primary);
  border-radius: 2px;
  margin: 0 auto 16px;
}
.md-section-eyebrow {
  display: inline-block;
  font: var(--md-label-large);
  color: var(--md-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}
.md-section-title {
  font: var(--md-headline-large);
  color: var(--md-on-surface);
  margin-bottom: 16px;
}
.md-section-subtitle {
  font: var(--md-body-large);
  color: var(--md-on-surface-variant);
  line-height: 1.6;
}

/* Features section — asymmetric layout */
.md-features {
  position: relative;
  z-index: 1;
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
  content-visibility: auto;
  contain-intrinsic-size: auto 600px;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

/* Make first feature card span full width for asymmetric feel */
.feature-card--hero {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  padding: 32px;
  transition: transform var(--md-duration-medium) var(--md-easing-standard),
              box-shadow var(--md-duration-medium) var(--md-easing-standard);
}

.feature-card--hero:hover {
  transform: translateY(-2px);
}

.feature-card--hero .feature-hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  border-radius: var(--md-radius);
  background: linear-gradient(135deg, var(--md-primary-container), var(--md-tertiary-container));
  position: relative;
  overflow: hidden;
  transition: transform var(--md-duration-medium) var(--md-easing-standard);
}

.feature-card--hero:hover .feature-hero-visual {
  transform: scale(1.02);
}

.feature-card--hero .feature-hero-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(255,255,255,0.05) 10px,
    rgba(255,255,255,0.05) 20px
  );
}
.feature-card {
  padding: 8px;
  transition: transform var(--md-duration-medium) var(--md-easing-standard),
              box-shadow var(--md-duration-medium) var(--md-easing-standard);
}

.feature-card:hover {
  transform: translateY(-2px);
}
.feature-icon {
  font-size: 32px;
  color: var(--md-primary);
  margin-bottom: 16px;
}
.feature-card .md-card__title {
  font: var(--md-title-large);
  margin-bottom: 8px;
}
.feature-card .md-card__body {
  font: var(--md-body-medium);
  color: var(--md-on-surface-variant);
  line-height: 1.6;
}


/* ------------------------------------------------------------
   11. ELEVATION SHOWCASE
   ------------------------------------------------------------ */
.md-elevation-section {
  position: relative;
  z-index: 1;
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
  background: var(--md-surface-container-lowest);
  border-top: 1px solid var(--md-outline-variant);
  border-bottom: 1px solid var(--md-outline-variant);
  content-visibility: auto;
  contain-intrinsic-size: auto 600px;
}

.elevation-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
}

.elevation-demo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.elevation-card {
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: var(--md-radius);
  background: var(--md-surface-container-low);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: box-shadow var(--md-duration-medium) var(--md-easing-standard),
              transform var(--md-duration-medium) var(--md-easing-standard);
}

.elevation-card:hover {
  transform: translateY(-4px);
}

.elevation-card--0:hover { transform: translateY(-2px); }
.elevation-card--1:hover { transform: translateY(-3px); }
.elevation-card--2:hover { transform: translateY(-4px); }
.elevation-card--3:hover { transform: translateY(-5px); }
.elevation-card--4:hover { transform: translateY(-6px); }

.elevation-card--0 { box-shadow: var(--md-elevation-0); border: 1px solid var(--md-outline-variant); }
.elevation-card--1 { box-shadow: var(--md-elevation-1); }
.elevation-card--2 { box-shadow: var(--md-elevation-2); }
.elevation-card--3 { box-shadow: var(--md-elevation-3); }
.elevation-card--4 { box-shadow: var(--md-elevation-4); }
.elevation-card--6 { box-shadow: 0 8px 16px 4px rgba(0,0,0,0.15), 0 4px 5px rgba(0,0,0,0.3); }
.elevation-card--8 { box-shadow: 0 12px 20px 6px rgba(0,0,0,0.15), 0 6px 6px rgba(0,0,0,0.3); }
.elevation-card--12 { box-shadow: 0 16px 28px 8px rgba(0,0,0,0.15), 0 8px 8px rgba(0,0,0,0.3); }
.elevation-card--16 { box-shadow: 0 20px 32px 10px rgba(0,0,0,0.15), 0 10px 10px rgba(0,0,0,0.3); }
.elevation-card--24 { box-shadow: 0 24px 38px 12px rgba(0,0,0,0.15), 0 12px 12px rgba(0,0,0,0.3); }

.elevation-label { font: var(--md-title-medium); color: var(--md-on-surface); }
.elevation-desc { font: var(--md-body-small); color: var(--md-on-surface-variant); }
.elevation-code { font: var(--md-body-small); color: var(--md-primary); font-family: var(--font-mono); }


/* ------------------------------------------------------------
   12. COMPONENTS SHOWCASE
   ------------------------------------------------------------ */
.md-components {
  position: relative;
  z-index: 1;
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
  background: var(--md-surface-container-low);
  border-radius: var(--md-radius-lg);
  margin-top: 40px;
  margin-bottom: 40px;
  content-visibility: auto;
  contain-intrinsic-size: auto 800px;
}

.components-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.component-showcase {
  background: var(--md-surface-container-low);
  border-radius: var(--md-radius);
  padding: 24px;
  box-shadow: var(--md-elevation-1);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform var(--md-duration-medium) var(--md-easing-standard),
              box-shadow var(--md-duration-medium) var(--md-easing-standard);
}

.component-showcase:hover {
  transform: translateY(-2px);
  box-shadow: var(--md-elevation-2);
}

.component-showcase__title {
  font: var(--md-title-medium);
  color: var(--md-on-surface);
}

.component-showcase__row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}


/* ------------------------------------------------------------
   13. SEGMENTED BUTTON
   ------------------------------------------------------------ */
.md-segmented-button {
  display: inline-flex;
  border: 1px solid var(--md-outline);
  border-radius: var(--md-radius-full);
  overflow: hidden;
}

.md-seg-btn {
  padding: 8px 16px;
  font: var(--md-label-large);
  color: var(--md-on-surface);
  border-right: 1px solid var(--md-outline);
  transition: all var(--md-duration-short) var(--md-easing-standard);
  -webkit-tap-highlight-color: transparent;
  min-height: 40px;
  background: transparent;
  cursor: pointer;
}

.md-seg-btn:last-child { border-right: none; }
.md-seg-btn:hover { background: var(--md-surface-container-high); }

.md-seg-btn--active {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}


/* ------------------------------------------------------------
   14. SWITCHES & CHECKBOXES
   ------------------------------------------------------------ */
.md-switch {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  min-height: 48px;
}

.md-switch input { display: none; }

.md-switch__track {
  width: 52px;
  height: 32px;
  border-radius: var(--md-radius-full);
  background: var(--md-surface-container-highest);
  border: 2px solid var(--md-outline);
  transition: background 0.3s var(--md-easing-emphasized), border-color 0.3s var(--md-easing-emphasized);
  position: relative;
  transition: all var(--md-duration-medium) var(--md-easing-standard);
}

.md-switch__thumb {
  position: absolute;
  top: 50%;
  left: 6px;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  border-radius: var(--md-radius-full);
  background: var(--md-outline);
  transition: all 0.3s var(--md-easing-emphasized);
  transition: all var(--md-duration-medium) var(--md-easing-emphasized);
}

.md-switch input:checked + .md-switch__track {
  background: var(--md-primary);
  border-color: var(--md-primary);
}

.md-switch input:checked + .md-switch__track .md-switch__thumb {
  left: calc(100% - 22px);
  width: 24px;
  height: 24px;
  background: var(--md-on-primary);
}

.md-switch__label {
  font: var(--md-body-large);
  color: var(--md-on-surface);
}

/* Checkbox */
.md-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  min-height: 48px;
}

.md-checkbox input { display: none; }

.md-checkbox__box {
  width: 20px;
  height: 20px;
  border-radius: 3px;
  border: 2px solid var(--md-on-surface-variant);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--md-duration-short) var(--md-easing-standard);
  background: transparent;
}

.md-checkbox__box .material-icons-outlined {
  font-size: 16px;
  color: var(--md-on-primary);
  opacity: 0;
  transform: scale(0);
  transition: all var(--md-duration-short) var(--md-easing-emphasized);
}

.md-checkbox input:checked + .md-checkbox__box {
  background: var(--md-primary);
  border-color: var(--md-primary);
}

.md-checkbox input:checked + .md-checkbox__box .material-icons-outlined {
  opacity: 1;
  transform: scale(1);
}

.md-checkbox label {
  font: var(--md-body-large);
  color: var(--md-on-surface);
}


/* ------------------------------------------------------------
   15. SLIDER
   ------------------------------------------------------------ */
.md-slider {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: var(--md-surface-container-highest);
  outline: none;
  cursor: pointer;
}

.md-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: var(--md-radius-full);
  background: var(--md-primary);
  box-shadow: var(--md-elevation-1);
  cursor: grab;
  transition: box-shadow var(--md-duration-short) var(--md-easing-standard);
}

.md-slider::-webkit-slider-thumb:hover { box-shadow: var(--md-elevation-2); }
.md-slider::-webkit-slider-thumb:active { cursor: grabbing; box-shadow: var(--md-elevation-3); }

.md-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: var(--md-radius-full);
  background: var(--md-primary);
  box-shadow: var(--md-elevation-1);
  border: none;
  cursor: grab;
}

.md-slider::-moz-range-track {
  height: 4px;
  border-radius: 2px;
  background: var(--md-surface-container-highest);
}

.md-slider__value {
  font: var(--md-label-medium);
  color: var(--md-primary);
  min-width: 32px;
  text-align: right;
}


/* ------------------------------------------------------------
   16. TEXT FIELDS
   ------------------------------------------------------------ */
.md-field {
  position: relative;
  flex: 1;
}

.md-field__input {
  width: 100%;
  height: 56px;
  padding: 24px 16px 8px;
  border: none;
  border-radius: var(--md-radius-xs) var(--md-radius-xs) 0 0;
  background: var(--md-surface-container-highest);
  font: var(--md-body-large);
  color: var(--md-on-surface);
  -webkit-appearance: none;
  font-size: 16px; /* Prevents iOS zoom on focus */
  outline: none;
  border-bottom: 2px solid var(--md-on-surface-variant);
  transition: border-color var(--md-duration-short) var(--md-easing-standard);
}

.md-field__input:focus {
  border-bottom-color: var(--md-primary);
}

.md-field__label {
  position: absolute;
  top: 16px;
  left: 16px;
  font: var(--md-body-large);
  color: var(--md-on-surface-variant);
  pointer-events: none;
  transition: all var(--md-duration-short) var(--md-easing-standard);
}

.md-field__input:focus ~ .md-field__label,
.md-field__input:not(:placeholder-shown) ~ .md-field__label {
  top: 4px;
  font: var(--md-body-small);
  color: var(--md-primary);
}

.md-field__support {
  display: none;
  font: var(--md-body-small);
  color: var(--md-on-surface-variant);
  padding: 4px 16px 0;
}

.md-field__support--error { color: var(--md-error); }
.md-field.is-invalid .md-field__support { display: block; }
.md-field.is-invalid .md-field__input { border-bottom-color: var(--md-error); }
.md-field.is-valid .md-field__input { border-bottom-color: #2e7d32; }

/* Outlined variant */
.md-field--outlined .md-field__input {
  background: transparent;
  border: 1px solid var(--md-outline);
  border-radius: var(--md-radius-xs);
  padding: 16px;
  border-bottom-width: 1px;
}

.md-field--outlined .md-field__input:focus {
  border-color: var(--md-primary);
  border-width: 2px;
  padding: 15px;
}

.md-field--outlined .md-field__label {
  top: 16px;
  left: 16px;
  background: var(--md-surface);
  padding: 0 4px;
}

.md-field--outlined .md-field__input:focus ~ .md-field__label,
.md-field--outlined .md-field__input:not(:placeholder-shown) ~ .md-field__label {
  top: -8px;
  left: 12px;
  font: var(--md-body-small);
  color: var(--md-primary);
}

select.md-field__input {
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}

textarea.md-field__input {
  height: auto;
  min-height: 120px;
  resize: vertical;
  border-radius: var(--md-radius-xs);
}


/* ------------------------------------------------------------
   17. NAVIGATION RAIL
   ------------------------------------------------------------ */
.nav-rail {
  width: 80px;
  min-width: 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 0;
  flex-shrink: 0;
  border-radius: var(--md-radius-lg);
  background: var(--md-surface-container);
  transition: box-shadow var(--md-duration-medium) var(--md-easing-standard);
}

.nav-rail__items {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 100%;
}

.nav-rail__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 0;
  width: 100%;
  text-decoration: none;
  color: var(--md-on-surface-variant);
  transition: all var(--md-duration-short) var(--md-easing-standard);
  position: relative;
  min-height: 48px;
  justify-content: center;
}

.nav-rail__item:hover { color: var(--md-on-surface); }

.nav-rail__item--active {
  color: var(--md-on-secondary-container);
}

.nav-rail__item--active::before {
  content: '';
  position: absolute;
  top: 0;
  width: 56px;
  height: 32px;
  border-radius: var(--md-radius-full);
  background: var(--md-secondary-container);
  z-index: -1;
}

.nav-rail__label {
  font: var(--md-label-medium);
}

.nav-rail__item .md-badge {
  position: absolute;
  top: 0;
  right: calc(50% - 20px);
}

.nav-rail__profile {
  padding: 8px 0;
}


/* ------------------------------------------------------------
   18. DASHBOARD
   ------------------------------------------------------------ */
.md-dashboard {
  position: relative;
  z-index: 1;
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
  content-visibility: auto;
  contain-intrinsic-size: auto 700px;
}

.dashboard-layout {
  display: flex;
  gap: 24px;
  min-height: 560px;
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-radius-lg);
  overflow: hidden;
  background: var(--md-surface);
}

.dashboard-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
  padding: 24px 32px;
}

.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.dashboard-greeting { font: var(--md-headline-medium); }
.dashboard-sub { font: var(--md-body-large); color: var(--md-on-surface-variant); margin-top: 4px; }

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.stats-row .md-card {
  transition: transform var(--md-duration-medium) var(--md-easing-standard),
              box-shadow var(--md-duration-medium) var(--md-easing-standard);
  border: 1px solid var(--md-outline-variant);
}

.stats-row .md-card:hover {
  transform: translateY(-2px);
}

.stat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.stat-icon { font-size: 24px; }
.stat-icon--primary { color: var(--md-primary); }
.stat-icon--secondary { color: var(--md-secondary); }
.stat-icon--tertiary { color: var(--md-tertiary); }

.stat-value { font: var(--md-headline-large); display: block; margin-bottom: 4px; }
.stat-label { font: var(--md-body-medium); color: var(--md-on-surface-variant); }

.dashboard-main > .md-card:nth-child(3) {
  transition: transform var(--md-duration-medium) var(--md-easing-standard),
              box-shadow var(--md-duration-medium) var(--md-easing-standard);
}

.dashboard-main > .md-card:nth-child(3):hover {
  transform: translateY(-2px);
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.md-chart {
  width: 100%;
  height: 200px;
}

.md-chart__line {
  stroke-dasharray: 1200;
  stroke-dashoffset: 1200;
  animation: md-chart-draw 1.2s var(--md-easing-decelerate) 0.3s forwards;
  transition: d 0.6s var(--md-easing-standard);
}

.md-chart__area {
  opacity: 0;
  animation: md-chart-fade 0.8s var(--md-easing-decelerate) 0.8s forwards;
  transition: d 0.6s var(--md-easing-standard), opacity 0.4s;
}

@keyframes md-chart-draw { to { stroke-dashoffset: 0; } }
@keyframes md-chart-fade { to { opacity: 1; } }

.md-chart__labels {
  display: flex;
  justify-content: space-between;
  padding: 8px 0 0;
  font: var(--md-label-small);
  color: var(--md-on-surface-variant);
}

.dashboard-main > .md-card:nth-child(4) {
  transition: transform var(--md-duration-medium) var(--md-easing-standard),
              box-shadow var(--md-duration-medium) var(--md-easing-standard);
}

.dashboard-main > .md-card:nth-child(4):hover {
  transform: translateY(-2px);
}

.activity-list { display: flex; flex-direction: column; }
.activity-item { display: flex; align-items: flex-start; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--md-surface-container-highest); }
.activity-item:last-child { border-bottom: none; }
.activity-info { display: flex; flex-direction: column; gap: 2px; }
.activity-text { font: var(--md-body-medium); }
.activity-text strong { font-weight: 500; }
.activity-time { font: var(--md-body-small); color: var(--md-on-surface-variant); }


/* ------------------------------------------------------------
   19. COLORS
   ------------------------------------------------------------ */
.md-colors {
  position: relative;
  z-index: 1;
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.color-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.color-swatch {
  border-radius: var(--md-radius);
  padding: 24px;
  min-height: 100px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 4px;
}

.color-swatch__name { font: var(--md-label-large); }
.color-swatch__hex { font: var(--md-body-small); font-family: var(--font-mono); opacity: 0.8; }

.color-swatch--primary { background: #6750A4; color: white; }
.color-swatch--on-primary { background: white; color: #381E72; border: 1px solid #E0E0E0; }
.color-swatch--primary-container { background: #EADDFF; color: #21005D; }
.color-swatch--secondary { background: #625B71; color: white; }
.color-swatch--tertiary { background: #7D5260; color: white; }
.color-swatch--error { background: #B3261E; color: white; }
.color-swatch--surface { background: #FFFBFE; color: #1C1B1F; border: 1px solid #E0E0E0; }
.color-swatch--surface-variant { background: #E7E0EC; color: #49454F; }


/* ------------------------------------------------------------
   20. PRICING
   ------------------------------------------------------------ */
.md-pricing {
  position: relative;
  z-index: 1;
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
  content-visibility: auto;
  contain-intrinsic-size: auto 600px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.pricing-grid .md-card {
  transition: transform var(--md-duration-medium) var(--md-easing-standard),
              box-shadow var(--md-duration-medium) var(--md-easing-standard);
}

.pricing-grid .md-card:hover {
  transform: translateY(-4px);
}

.pricing-amount {
  font: var(--md-display-medium);
  margin: 16px 0 4px;
}

.pricing-currency { font: var(--md-headline-medium); vertical-align: top; }

.pricing-period {
  font: var(--md-body-medium);
  color: var(--md-on-surface-variant);
}

.pricing-features {
  text-align: left;
  width: 100%;
  margin: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 8px;
  font: var(--md-body-medium);
  color: var(--md-on-surface-variant);
  line-height: 1.5;
}

.pricing-features .material-icons-outlined {
  font-size: 18px;
  color: var(--md-primary);
}


/* ------------------------------------------------------------
   21. CONTACT
   ------------------------------------------------------------ */
.md-contact {
  position: relative;
  z-index: 1;
  padding: 80px 24px;
  max-width: 600px;
  margin: 0 auto;
  content-visibility: auto;
  contain-intrinsic-size: auto 500px;
}

.contact-card {
  transition: transform var(--md-duration-medium) var(--md-easing-standard),
              box-shadow var(--md-duration-medium) var(--md-easing-standard);
  border: 1px solid var(--md-outline-variant);
}

.contact-card:hover {
  transform: translateY(-2px);
}

.contact-card .md-card__content {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 32px;
}

@media (max-width: 640px) {
  .contact-card .md-card__content { padding: 20px; gap: 16px; }
}

.contact__submit { margin-top: 8px; }

.contact-success {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
  border-radius: var(--md-radius-sm);
  background: #e8f5e9;
  color: #2e7d32;
  font: var(--md-label-large);
}

.contact-success.is-visible { display: flex; }


/* ------------------------------------------------------------
   22. SNACKBARS
   ------------------------------------------------------------ */
.md-snackbar-container {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 400px;
  width: calc(100% - 48px);
}

.md-snackbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--md-radius-xs);
  background: var(--md-inverse-surface);
  color: var(--md-inverse-on-surface);
  box-shadow: var(--md-elevation-3);
  font: var(--md-body-medium);
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--md-duration-medium) var(--md-easing-emphasized);
}

.md-snackbar.is-visible { transform: translateY(0); opacity: 1; }
.md-snackbar.is-dismissing { transform: translateY(100px); opacity: 0; }

.md-snackbar__action {
  margin-left: auto;
  font: var(--md-label-large);
  color: var(--md-primary-container);
  padding: 0 8px;
  cursor: pointer;
  flex-shrink: 0;
}

[data-theme="dark"] .md-snackbar__action { color: var(--md-primary); }

.md-toast-demo {
  position: relative;
  z-index: 1;
  padding: 80px 24px;
  max-width: 600px;
  margin: 0 auto;
  content-visibility: auto;
  contain-intrinsic-size: auto 200px;
  text-align: center;
}


/* ------------------------------------------------------------
   23. CONTROL PANEL
   ------------------------------------------------------------ */
.control-panel {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 150;
  overflow: visible;
}

.control-panel:hover { transform: none; }

.control-panel__toggle {
  width: 44px;
  height: 44px;
  border-radius: var(--md-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--md-on-surface-variant);
  cursor: grab;
  touch-action: none;
  user-select: none;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  box-shadow: var(--md-elevation-3);
  position: relative;
  z-index: 2;
}

.control-panel__toggle:active { cursor: grabbing; box-shadow: var(--md-elevation-4); }

.control-panel__body {
  position: absolute;
  bottom: 52px;
  right: 0;
  width: 280px;
  background: var(--md-surface-container-low);
  border-radius: var(--md-radius);
  box-shadow: var(--md-elevation-3);
  padding: 16px;
  display: none;
  flex-direction: column;
  gap: 16px;
}

.control-panel__body.is-open {
  display: flex;
}

.control-panel__title {
  font: var(--md-label-medium);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--md-on-surface-variant);
}

.control-panel__control {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.control-panel__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.control-panel__label { font: var(--md-body-medium); color: var(--md-on-surface-variant); }
.control-panel__value { font: var(--md-label-large); color: var(--md-primary); min-width: 40px; text-align: right; }

.control-panel__presets {
  display: flex;
  gap: 8px;
}

.md-preset {
  flex: 1;
  padding: 8px 0;
  border-radius: var(--md-radius-sm);
  font: var(--md-label-small);
  color: var(--md-on-surface-variant);
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline-variant);
  transition: all var(--md-duration-short) var(--md-easing-standard);
}

.md-preset:hover { background: var(--md-surface-container-high); }

.md-preset--active {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  border-color: var(--md-primary);
}


/* ------------------------------------------------------------
   24. TESTIMONIALS
   ------------------------------------------------------------ */
.md-testimonials {
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
  margin-bottom: 64px;
  content-visibility: auto;
  contain-intrinsic-size: auto 500px;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  transition: transform var(--md-duration-medium) var(--md-easing-standard),
              box-shadow var(--md-duration-medium) var(--md-easing-standard);
}

.testimonial-card:hover {
  transform: translateY(-2px);
}

.testimonial-card .md-card__content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.testimonial-text {
  font: var(--md-body-large);
  color: var(--md-on-surface);
  line-height: 1.7;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-name {
  display: block;
  font: var(--md-label-large);
  color: var(--md-on-surface);
}

.testimonial-role {
  display: block;
  font: var(--md-body-small);
  color: var(--md-on-surface-variant);
}

.md-avatar--secondary {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}

.md-avatar--tertiary {
  background: var(--md-tertiary-container);
  color: var(--md-on-tertiary-container);
}


/* ------------------------------------------------------------
   25. FAQ
   ------------------------------------------------------------ */
.md-faq {
  padding: 80px 24px;
  max-width: 720px;
  margin: 0 auto;
  background: var(--md-surface-container-low);
  border-radius: var(--md-radius-lg);
  margin-top: 40px;
  margin-bottom: 40px;
  content-visibility: auto;
  contain-intrinsic-size: auto 500px;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  cursor: pointer;
  transition: transform var(--md-duration-medium) var(--md-easing-standard),
              box-shadow var(--md-duration-medium) var(--md-easing-standard);
}

.faq-item:hover {
  transform: translateY(-1px);
  box-shadow: var(--md-elevation-2);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font: var(--md-title-medium);
  color: var(--md-on-surface);
  cursor: pointer;
  list-style: none;
  -webkit-tap-highlight-color: transparent;
  min-height: 48px;
  transition: background var(--md-duration-short) var(--md-easing-standard);
}

.faq-question:hover {
  background: var(--md-surface-container-high);
}

.faq-question::-webkit-details-marker { display: none; }

.faq-icon {
  transition: transform var(--md-duration-medium) var(--md-easing-standard);
  color: var(--md-on-surface-variant);
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 24px 20px;
  font: var(--md-body-large);
  color: var(--md-on-surface-variant);
  line-height: 1.7;
  animation: faq-expand 0.3s var(--md-easing-decelerate);
}

@keyframes faq-expand {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}


/* ------------------------------------------------------------
   26. FINAL CTA
   ------------------------------------------------------------ */
.md-final-cta {
  padding: 120px 24px;
  background: var(--md-surface-container);
  color: var(--md-on-surface);
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .md-final-cta {
  background: #121218;
}

/* Floating orb decorations */
.md-final-cta__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.md-final-cta__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
}

.md-final-cta__orb--1 {
  width: 400px; height: 400px;
  background: var(--md-primary);
  top: -100px; left: -100px;
}

.md-final-cta__orb--2 {
  width: 300px; height: 300px;
  background: var(--md-tertiary);
  bottom: -80px; right: -60px;
}

.md-final-cta__orb--3 {
  width: 200px; height: 200px;
  background: var(--md-primary);
  top: 50%; left: 60%;
  opacity: 0.08;
}

.md-final-cta__inner {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.md-final-cta__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: var(--md-radius-full);
  background: var(--md-primary-container);
  border: 1px solid var(--md-outline-variant);
  font: var(--md-label-large);
  color: var(--md-on-primary-container);
  margin-bottom: 32px;
}

[data-theme="dark"] .md-final-cta__badge {
  background: rgba(208, 188, 255, 0.1);
  border-color: rgba(208, 188, 255, 0.15);
  color: #D0BCFF;
}

.md-final-cta__badge .material-icons-outlined {
  font-size: 18px;
  color: var(--md-on-primary-container);
}

[data-theme="dark"] .md-final-cta__badge .material-icons-outlined {
  color: #D0BCFF;
}

.md-final-cta__title {
  font: 700 clamp(2rem, 5vw, 3rem)/1.15 var(--font);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.md-final-cta__sub {
  font: var(--md-body-large);
  line-height: 1.7;
  margin-bottom: 40px;
  color: var(--md-on-surface-variant);
}

.md-final-cta__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.md-final-cta .md-btn--filled {
  background: var(--md-primary);
  color: var(--md-on-primary);
  box-shadow: var(--md-elevation-1);
}

.md-final-cta .md-btn--filled:hover {
  box-shadow: var(--md-elevation-2);
  transform: translateY(-1px);
}

.md-final-cta .md-btn--outlined {
  border-color: var(--md-outline);
  color: var(--md-primary);
  background: transparent;
}

.md-final-cta .md-btn--outlined:hover {
  background: var(--md-primary-container);
  border-color: var(--md-primary);
}

/* Proof points */
.md-final-cta__proof {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.md-final-cta__proof-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font: var(--md-label-large);
  color: var(--md-on-surface-variant);
}

.md-final-cta__proof-item .material-icons-outlined {
  font-size: 16px;
  color: #4ADE80;
}


/* ------------------------------------------------------------
   27. FOOTER
   ------------------------------------------------------------ */
.md-footer {
  background: var(--md-surface-container);
  border-top: 1px solid var(--md-outline-variant);
}

.md-footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.md-footer__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font: var(--md-title-medium);
}

.md-footer__links { display: flex; gap: 24px; }
.md-footer__links a { font: var(--md-body-medium); color: var(--md-on-surface-variant); transition: color var(--md-duration-short); }
.md-footer__links a:hover { color: var(--md-primary); }
.md-footer__copy { font: var(--md-body-small); color: var(--md-on-surface-variant); }


/* ------------------------------------------------------------
   25. SECTION TITLES
   ------------------------------------------------------------ */
/* Old section title styles removed — using .md-section-header system instead */


/* ------------------------------------------------------------
   26. SPOTLIGHT
   ------------------------------------------------------------ */
.spotlight { position: relative; overflow: hidden; }

.spotlight::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    300px circle at var(--spot-x, 50%) var(--spot-y, 50%),
    rgba(103, 80, 164, 0.08) 0%,
    transparent 60%
  );
  opacity: 0;
  transition: opacity var(--md-duration-medium) var(--md-easing-standard);
  pointer-events: none;
  z-index: 1;
}

[data-theme="dark"] .spotlight::after {
  background: radial-gradient(
    300px circle at var(--spot-x, 50%) var(--spot-y, 50%),
    rgba(208, 188, 255, 0.06) 0%,
    transparent 60%
  );
}

.spotlight:hover::after { opacity: 1; }


/* ------------------------------------------------------------
   27. MAGNETIC
   ------------------------------------------------------------ */
.magnetic {
  transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}

.magnetic:active { transition-duration: 0.1s; }


/* ------------------------------------------------------------
   29. SCROLL REVEAL
   ------------------------------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  will-change: opacity, transform;
  transition: opacity 0.6s var(--md-easing-decelerate),
              transform 0.6s var(--md-easing-decelerate);
}

.reveal--visible {
  opacity: 1;
  transform: translateY(0);
  will-change: auto;
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}


/* ------------------------------------------------------------
   28. RESPONSIVE
   ------------------------------------------------------------ */
/* ------------------------------------------------------------
   RESPONSIVE — Tablet (1024px)
   ------------------------------------------------------------ */
@media (max-width: 1024px) {
  .md-hero { flex-direction: column; text-align: center; gap: 48px; }
  .md-hero__content { text-align: center; max-width: 600px; }
  .md-hero__ctas { justify-content: center; }
  .md-hero__proof { justify-content: center; }
  .md-hero__visual { max-width: 520px; width: 100%; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-card--hero { grid-template-columns: 1fr; }
  .feature-card--hero .feature-hero-visual { min-height: 160px; }
  .elevation-grid { grid-template-columns: repeat(4, 1fr); }
  .components-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .dashboard-main > div[style*="grid-template-columns: 1fr 1fr"] { grid-template-columns: 1fr !important; }
  .color-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ------------------------------------------------------------
   RESPONSIVE — Mobile landscape (768px)
   ------------------------------------------------------------ */
@media (max-width: 768px) {
  .elevation-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .testimonials-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .dashboard-layout { flex-direction: column; }
  .dashboard-main { padding: 16px 20px; }
  .dashboard-header .md-field { display: none; }
  .dashboard-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .stats-row { grid-template-columns: repeat(2, 1fr); gap: 12px; }

  /* Nav rail becomes horizontal bottom bar */
  .nav-rail { width: 100%; min-width: 100%; flex-direction: row; padding: 8px 16px; border-radius: var(--md-radius-lg); }
  .nav-rail__items { flex-direction: row; justify-content: space-around; }
  .nav-rail__item--active::before { width: 56px; height: 32px; }
  .nav-rail__label { display: none; }
  .nav-rail__profile { margin-left: auto; }

  .md-section-header { margin-bottom: 48px; }
  .md-section-title { font-size: 1.5rem; }

  /* Reduce section padding */
  .md-elevation-section, .md-components, .md-dashboard,
  .md-testimonials, .md-pricing, .md-faq, .md-toast-demo { padding: 60px 20px; }
  .md-contact { padding: 60px 20px; }
  .md-final-cta { padding: 72px 20px; }

  .md-footer__inner { flex-direction: column; text-align: center; gap: 16px; }
  .md-footer__links { justify-content: center; flex-wrap: wrap; gap: 16px; }
}

/* ------------------------------------------------------------
   RESPONSIVE — Mobile portrait (640px)
   ------------------------------------------------------------ */
@media (max-width: 640px) {
  :root { --md-nav-height: 56px; }
  .md-nav__links, .md-nav__actions { display: none; }
  .md-nav__hamburger { display: flex; }
  .md-nav__mobile-menu.active { display: flex; }
  .md-nav__mobile-menu {
    position: absolute;
    top: var(--md-nav-height);
    left: 0; right: 0;
    background: var(--md-surface);
    box-shadow: var(--md-elevation-2);
    border-bottom: 1px solid var(--md-outline-variant);
    padding: 12px 16px 20px;
  }

  /* Hero */
  .md-hero { padding-top: calc(var(--md-nav-height) + 16px); min-height: auto; gap: 32px; }
  .md-hero__title { font-size: clamp(1.75rem, 6vw, 2.25rem); }
  .md-hero__subtitle { font-size: 0.9375rem; line-height: 1.6; }
  .md-hero__proof { flex-direction: column; gap: 12px; }
  .md-hero__proof-divider { width: 40px; height: 1px; }
  .md-hero__visual { max-width: 100%; }
  .hero-preview__sidebar { display: none; }
  .hero-preview__stat-row { grid-template-columns: repeat(3, 1fr); gap: 4px; }
  .md-hero__ctas { flex-direction: column; align-items: stretch; }
  .md-hero__ctas .md-btn { width: 100%; }

  /* Section headers */
  .md-section-header { margin-bottom: 32px; }
  .md-section-title { font-size: 1.375rem; }
  .md-section-subtitle { font-size: 0.9375rem; }

  /* Elevation grid */
  .elevation-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .elevation-card { aspect-ratio: 1; }

  /* Stats */
  .stats-row { grid-template-columns: 1fr; gap: 12px; }
  .stat-value { font-size: 1.5rem; }

  /* Colors */
  .color-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .color-swatch { min-height: 80px; padding: 16px; }

  /* Component showcase */
  .component-showcase { padding: 16px; }
  .component-showcase__row { gap: 8px; }
  .component-showcase__row .md-btn { height: 36px; padding: 0 16px; font-size: 0.8125rem; }

  /* Pricing */
  .pricing-grid { max-width: 100%; }
  .pricing-amount { font-size: 2rem; }

  /* FAQ */
  .md-faq { padding: 48px 16px; }
  .faq-question { padding: 16px 20px; font-size: 0.9375rem; }
  .faq-answer { padding: 0 20px 16px; font-size: 0.9375rem; }

  /* Final CTA */
  .md-final-cta { padding: 56px 20px; }
  .md-final-cta__title { font-size: 1.5rem; }
  .md-final-cta__sub { font-size: 0.9375rem; }

  /* Footer */
  .md-footer__inner { padding: 24px 16px; }
  .md-footer__brand { font-size: 1rem; }
  .md-footer__links { gap: 12px; }
  .md-footer__links a { font-size: 0.8125rem; }
  .md-footer__copy { font-size: 0.75rem; }

  /* Control panel */
  .control-panel { bottom: 16px; right: 16px; }
  .control-panel__body { width: 260px; right: 0; }
  .control-panel__presets { flex-wrap: wrap; }

  /* Toast demo */
  .md-toast-demo { padding: 48px 16px; }
  .md-toast-demo .component-showcase__row { justify-content: center; }
}

/* ------------------------------------------------------------
   RESPONSIVE — Small phones (375px)
   ------------------------------------------------------------ */
@media (max-width: 375px) {
  .md-hero__title { font-size: 1.5rem; }
  .md-hero__subtitle { font-size: 0.875rem; }
  .md-hero__proof-num { font-size: 1.125rem; }
  .md-section-title { font-size: 1.25rem; }
  .md-btn--lg { height: 44px; padding: 0 24px; font-size: 0.875rem; }
  .pricing-grid .md-card__content { padding: 20px 16px; }
  .elevation-grid { grid-template-columns: 1fr 1fr; }
  .hero-preview__stat { padding: 0; }
  .hero-preview__stat > div { padding: 8px; }
  .hero-preview__stat > div > div:first-child { font-size: 8px; }
  .hero-preview__stat > div > div:nth-child(2) { font-size: 12px; }
}