/* ============================================
   British Institute - Material 3 Design System
   ============================================ */

/* --- Material 3 Design Tokens --- */
:root {
  /* Primary */
  --md-sys-color-primary: #1565C0;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #D1E4FF;
  --md-sys-color-on-primary-container: #001D36;

  /* Secondary */
  --md-sys-color-secondary: #535F70;
  --md-sys-color-on-secondary: #FFFFFF;
  --md-sys-color-secondary-container: #D7E3F7;
  --md-sys-color-on-secondary-container: #101C2B;

  /* Tertiary */
  --md-sys-color-tertiary: #6B5778;
  --md-sys-color-on-tertiary: #FFFFFF;
  --md-sys-color-tertiary-container: #F2DAFF;
  --md-sys-color-on-tertiary-container: #251431;

  /* Error */
  --md-sys-color-error: #BA1A1A;
  --md-sys-color-on-error: #FFFFFF;
  --md-sys-color-error-container: #FFDAD6;
  --md-sys-color-on-error-container: #410002;

  /* Surface */
  --md-sys-color-surface: #F8FAFE;
  --md-sys-color-on-surface: #1A1C1E;
  --md-sys-color-surface-variant: #DFE2EB;
  --md-sys-color-on-surface-variant: #43474E;
  --md-sys-color-surface-container: #EDEEF4;
  --md-sys-color-surface-container-low: #F3F3F9;
  --md-sys-color-surface-container-high: #E7E8EE;
  --md-sys-color-surface-container-highest: #E1E2E8;
  --md-sys-color-surface-dim: #D8DAE0;
  --md-sys-color-surface-bright: #F8FAFE;
  --md-sys-color-surface-tint: #1565C0;

  /* Outline */
  --md-sys-color-outline: #73777F;
  --md-sys-color-outline-variant: #C3C6CF;

  /* Background */
  --md-sys-color-background: #F8FAFE;
  --md-sys-color-on-background: #1A1C1E;

  /* Inverse */
  --md-sys-color-inverse-surface: #2F3033;
  --md-sys-color-inverse-on-surface: #F1F0F4;
  --md-sys-color-inverse-primary: #A0CAFD;

  /* Shape Tokens */
  --md-sys-shape-none: 0px;
  --md-sys-shape-extra-small: 4px;
  --md-sys-shape-small: 8px;
  --md-sys-shape-medium: 12px;
  --md-sys-shape-large: 16px;
  --md-sys-shape-extra-large: 28px;
  --md-sys-shape-full: 9999px;

  /* Typography - Display */
  --md-sys-typescale-display-large: 600 57px/64px 'Roboto', sans-serif;
  --md-sys-typescale-display-medium: 600 45px/52px 'Roboto', sans-serif;
  --md-sys-typescale-display-small: 600 36px/44px 'Roboto', sans-serif;

  /* Typography - Headline */
  --md-sys-typescale-headline-large: 600 32px/40px 'Roboto', sans-serif;
  --md-sys-typescale-headline-medium: 600 28px/36px 'Roboto', sans-serif;
  --md-sys-typescale-headline-small: 600 24px/32px 'Roboto', sans-serif;

  /* Typography - Title */
  --md-sys-typescale-title-large: 500 22px/28px 'Roboto', sans-serif;
  --md-sys-typescale-title-medium: 500 16px/24px 'Roboto', sans-serif;
  --md-sys-typescale-title-small: 500 14px/20px 'Roboto', sans-serif;

  /* Typography - Body */
  --md-sys-typescale-body-large: 400 16px/24px 'Roboto', sans-serif;
  --md-sys-typescale-body-medium: 400 14px/20px 'Roboto', sans-serif;
  --md-sys-typescale-body-small: 400 12px/16px 'Roboto', sans-serif;

  /* Typography - Label */
  --md-sys-typescale-label-large: 500 14px/20px 'Roboto', sans-serif;
  --md-sys-typescale-label-medium: 500 12px/16px 'Roboto', sans-serif;
  --md-sys-typescale-label-small: 500 11px/16px 'Roboto', sans-serif;

  /* Elevation */
  --md-sys-elevation-0: none;
  --md-sys-elevation-1: 0px 1px 3px 1px rgba(0,0,0,0.15), 0px 1px 2px 0px rgba(0,0,0,0.30);
  --md-sys-elevation-2: 0px 2px 6px 2px rgba(0,0,0,0.15), 0px 1px 2px 0px rgba(0,0,0,0.30);
  --md-sys-elevation-3: 0px 4px 8px 3px rgba(0,0,0,0.15), 0px 1px 3px 0px rgba(0,0,0,0.30);
  --md-sys-elevation-4: 0px 6px 10px 4px rgba(0,0,0,0.15), 0px 2px 3px 0px rgba(0,0,0,0.30);
  --md-sys-elevation-5: 0px 8px 12px 6px rgba(0,0,0,0.15), 0px 4px 4px 0px rgba(0,0,0,0.30);

  /* Motion */
  --md-sys-motion-easing-standard: cubic-bezier(0.2, 0, 0, 1);
  --md-sys-motion-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --md-sys-motion-easing-emphasized-decelerate: cubic-bezier(0.05, 0.7, 0.1, 1);
  --md-sys-motion-easing-emphasized-accelerate: cubic-bezier(0.3, 0, 0.8, 0.15);
  --md-sys-motion-duration-short1: 50ms;
  --md-sys-motion-duration-short2: 100ms;
  --md-sys-motion-duration-short3: 150ms;
  --md-sys-motion-duration-short4: 200ms;
  --md-sys-motion-duration-medium1: 250ms;
  --md-sys-motion-duration-medium2: 300ms;
  --md-sys-motion-duration-medium3: 350ms;
  --md-sys-motion-duration-medium4: 400ms;
  --md-sys-motion-duration-long1: 450ms;
  --md-sys-motion-duration-long2: 500ms;
  --md-sys-motion-duration-long3: 550ms;
  --md-sys-motion-duration-long4: 600ms;
  --md-sys-motion-duration-extra-long: 800ms;

  /* State Layers */
  --md-sys-state-hover: 0.08;
  --md-sys-state-focus: 0.12;
  --md-sys-state-pressed: 0.12;
  --md-sys-state-dragged: 0.16;

  /* Legacy Variables (for compatibility) */
  --max-width: 1200px;
  --transition: all 0.3s var(--md-sys-motion-easing-standard);
}

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

html {
  font-size: 16px;
}

html.lenis, html.lenis body {
  height: auto;
}

.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}

.lenis.lenis-smooth [data-lenis-prevent] {
  overscroll-behavior: contain;
}

body {
  font-family: 'Roboto', 'Segoe UI', sans-serif;
  color: var(--md-sys-color-on-background);
  background-color: var(--md-sys-color-background);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

ul {
  list-style: none;
}

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

.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Roboto', sans-serif;
}

/* --- Material 3 Ripple Effect --- */
.ripple {
  position: relative;
  overflow: hidden;
}

.ripple::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  opacity: 0;
}

.ripple:active::after {
  width: 300px;
  height: 300px;
  opacity: 0;
  transition: width 0.6s var(--md-sys-motion-easing-standard),
              height 0.6s var(--md-sys-motion-easing-standard),
              opacity 0.6s var(--md-sys-motion-easing-standard);
}

/* --- Material 3 Top App Bar --- */
.m3-top-app-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--md-sys-color-surface);
  box-shadow: var(--md-sys-elevation-0);
  transition: background var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard),
              box-shadow var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}

.m3-top-app-bar.scrolled {
  background: var(--md-sys-color-surface-container);
  box-shadow: var(--md-sys-elevation-2);
}

.m3-top-app-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  height: 64px;
}

.m3-top-app-bar-title {
  font: var(--md-sys-typescale-title-large);
  color: var(--md-sys-color-on-surface);
}

/* --- Logo --- */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--md-sys-shape-medium);
  object-fit: contain;
  cursor: pointer;
  transition: transform var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
}

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

/* Logo Fullscreen Lightbox */
.m3-logo-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard),
              visibility var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
  cursor: pointer;
}

.m3-logo-lightbox.visible {
  opacity: 1;
  visibility: visible;
}

.m3-logo-lightbox img {
  max-width: 80vw;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--md-sys-shape-large);
  transform: scale(0.85);
  transition: transform var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
}

.m3-logo-lightbox.visible img {
  transform: scale(1);
}

.m3-logo-lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 40px;
  height: 40px;
  border-radius: var(--md-sys-shape-full);
  background: rgba(255, 255, 255, 0.15);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: background var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.m3-logo-lightbox-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

.logo-text {
  font: var(--md-sys-typescale-title-large);
  color: #1B2A4A;
}

.logo-text span {
  color: #C62828;
}

/* --- Navigation --- */
.m3-nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.m3-nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border-radius: var(--md-sys-shape-full);
  font: var(--md-sys-typescale-label-large);
  color: var(--md-sys-color-on-surface-variant);
  position: relative;
  overflow: hidden;
  min-height: 40px;
  transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.m3-nav-link:hover {
  background: rgba(21, 101, 192, 0.08);
  color: var(--md-sys-color-on-surface);
}

.m3-nav-link.active {
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}

/* --- Mobile Navigation --- */
.m3-nav-mobile-icons {
  display: none;
}

.m3-nav-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--md-sys-color-on-surface);
  text-decoration: none;
  font-size: 16px;
  transition: background 0.2s ease;
}

.m3-nav-icon-btn:hover {
  background: var(--md-sys-color-primary-container);
}

@media (max-width: 768px) {
  .m3-nav-icon-btn {
    width: 48px;
    height: 48px;
    font-size: 22px;
  }
}

/* --- Material 3 Buttons --- */
.m3-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 24px;
  height: 40px;
  border-radius: var(--md-sys-shape-full);
  font: var(--md-sys-typescale-label-large);
  cursor: pointer;
  border: none;
  outline: none;
  position: relative;
  overflow: hidden;
  transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.m3-btn i {
  font-size: 18px;
}

/* Filled Button */
.m3-btn-filled {
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  box-shadow: var(--md-sys-elevation-0);
}

.m3-btn-filled:hover {
  box-shadow: var(--md-sys-elevation-1);
  filter: brightness(1.08);
}

.m3-btn-filled:active {
  box-shadow: var(--md-sys-elevation-0);
}

/* Outlined Button */
.m3-btn-outlined {
  background: transparent;
  color: var(--md-sys-color-primary);
  border: 1px solid var(--md-sys-color-outline);
}

.m3-btn-outlined:hover {
  background: rgba(21, 101, 192, 0.08);
}

/* Text Button */
.m3-btn-text {
  background: transparent;
  color: var(--md-sys-color-primary);
}

.m3-btn-text:hover {
  background: rgba(21, 101, 192, 0.08);
}

/* Tonal Button */
.m3-btn-tonal {
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}

.m3-btn-tonal:hover {
  box-shadow: var(--md-sys-elevation-1);
}

/* Elevated Button */
.m3-btn-elevated {
  background: var(--md-sys-color-surface-container-low);
  color: var(--md-sys-color-primary);
  box-shadow: var(--md-sys-elevation-1);
}

.m3-btn-elevated:hover {
  box-shadow: var(--md-sys-elevation-2);
}

/* FAB */
.m3-fab {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--md-sys-shape-large);
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border: none;
  cursor: pointer;
  box-shadow: var(--md-sys-elevation-3);
  transition: all var(--md-sys-motion-duration-medium1) var(--md-sys-motion-easing-standard);
}

.m3-fab:hover {
  box-shadow: var(--md-sys-elevation-4);
  filter: brightness(1.04);
}

.m3-fab i {
  font-size: 24px;
}

.m3-fab-extended {
  width: auto;
  padding: 0 20px;
  gap: 12px;
  border-radius: var(--md-sys-shape-large);
}

.m3-fab-extended span {
  font: var(--md-sys-typescale-label-large);
}

/* Small FAB */
.m3-fab-small {
  width: 40px;
  height: 40px;
  border-radius: var(--md-sys-shape-medium);
}

.m3-fab-small i {
  font-size: 20px;
}

/* --- Material 3 Cards --- */
.m3-card {
  background: var(--md-sys-color-surface-container-low);
  border-radius: var(--md-sys-shape-medium);
  overflow: hidden;
  transition: all var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}

.m3-card-elevated {
  box-shadow: var(--md-sys-elevation-1);
}

.m3-card-elevated:hover {
  box-shadow: var(--md-sys-elevation-2);
}

.m3-card-filled {
  background: var(--md-sys-color-surface-container-highest);
  box-shadow: var(--md-sys-elevation-0);
}

.m3-card-outlined {
  border: 1px solid var(--md-sys-color-outline-variant);
  box-shadow: var(--md-sys-elevation-0);
}

.m3-card-content {
  padding: 16px;
}

.m3-card-media {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--md-sys-color-surface-container);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--md-sys-color-primary);
  font-size: 3rem;
}

.m3-card-header {
  padding: 16px 16px 0;
}

.m3-card-title {
  font: var(--md-sys-typescale-title-medium);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 4px;
}

.m3-card-subtitle {
  font: var(--md-sys-typescale-body-medium);
  color: var(--md-sys-color-on-surface-variant);
}

.m3-card-body {
  padding: 16px;
}

.m3-card-body p {
  font: var(--md-sys-typescale-body-medium);
  color: var(--md-sys-color-on-surface-variant);
}

.m3-card-actions {
  padding: 8px;
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

/* --- Material 3 Chips --- */
.m3-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 16px;
  height: 32px;
  border-radius: var(--md-sys-shape-small);
  font: var(--md-sys-typescale-label-large);
  cursor: pointer;
  border: 1px solid var(--md-sys-color-outline);
  background: transparent;
  color: var(--md-sys-color-on-surface-variant);
  transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.m3-chip:hover {
  background: rgba(21, 101, 192, 0.08);
}

.m3-chip.active {
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  border-color: transparent;
}

.m3-chip i {
  font-size: 18px;
}

/* Assist Chip */
.m3-chip-assist {
  padding-left: 12px;
}

/* Filter Chip */
.m3-chip-filter {
  padding-left: 12px;
}

.m3-chip-filter::before {
  content: '';
  width: 18px;
  height: 18px;
  border: 2px solid var(--md-sys-color-outline);
  border-radius: 4px;
  transition: all var(--md-sys-motion-duration-short3) var(--md-sys-motion-easing-standard);
}

.m3-chip-filter.active::before {
  background: var(--md-sys-color-primary);
  border-color: var(--md-sys-color-primary);
}

.m3-chip-filter.active::after {
  content: '\f00c';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 12px;
  color: var(--md-sys-color-on-primary);
  position: absolute;
  left: 20px;
}

/* --- Material 3 Text Fields --- */
.m3-text-field {
  position: relative;
  width: 100%;
}

.m3-text-field input,
.m3-text-field select,
.m3-text-field textarea {
  width: 100%;
  padding: 20px 16px 8px;
  border: 1px solid var(--md-sys-color-outline);
  border-radius: var(--md-sys-shape-extra-small);
  font: var(--md-sys-typescale-body-large);
  background: transparent;
  color: var(--md-sys-color-on-surface);
  outline: none;
  transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.m3-text-field textarea {
  min-height: 120px;
  resize: vertical;
}

.m3-text-field label {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font: var(--md-sys-typescale-body-large);
  color: var(--md-sys-color-on-surface-variant);
  pointer-events: none;
  transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.m3-text-field textarea ~ label {
  top: 24px;
  transform: none;
}

.m3-text-field input:focus,
.m3-text-field select:focus,
.m3-text-field textarea:focus {
  border-color: var(--md-sys-color-primary);
  border-width: 2px;
  padding: 19px 15px 7px;
}

.m3-text-field input:focus ~ label,
.m3-text-field select:focus ~ label,
.m3-text-field textarea:focus ~ label {
  top: 8px;
  transform: none;
  font: var(--md-sys-typescale-body-small);
  color: var(--md-sys-color-primary);
}

.m3-text-field input:not(:placeholder-shown) ~ label,
.m3-text-field select:not([value=""]) ~ label,
.m3-text-field textarea:not(:placeholder-shown) ~ label {
  top: 8px;
  transform: none;
  font: var(--md-sys-typescale-body-small);
}

/* Filled Text Field */
.m3-text-field-filled input,
.m3-text-field-filled select,
.m3-text-field-filled textarea {
  border: none;
  border-bottom: 1px solid var(--md-sys-color-outline);
  border-radius: var(--md-sys-shape-extra-small) var(--md-sys-shape-extra-small) 0 0;
  background: var(--md-sys-color-surface-container-highest);
  padding: 24px 16px 8px;
}

.m3-text-field-filled input:focus,
.m3-text-field-filled select:focus,
.m3-text-field-filled textarea:focus {
  border-bottom: 2px solid var(--md-sys-color-primary);
  padding: 23px 15px 7px;
}

/* --- Material 3 Divider --- */
.m3-divider {
  height: 1px;
  background: var(--md-sys-color-outline-variant);
  width: 100%;
}

/* --- Material 3 Badge --- */
.m3-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: var(--md-sys-shape-full);
  font: var(--md-sys-typescale-label-small);
  background: var(--md-sys-color-error);
  color: var(--md-sys-color-on-error);
}

.m3-badge-large {
  min-width: 24px;
  height: 24px;
  padding: 0 6px;
  font: var(--md-sys-typescale-label-small);
}

/* --- Hero Section --- */
.m3-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--md-sys-color-primary) 0%, #0D47A1 100%);
  position: relative;
  overflow: hidden;
  padding-top: 64px;
}

.m3-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 20% 80%, rgba(209, 228, 255, 0.15) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(160, 202, 253, 0.1) 0%, transparent 50%);
  animation: heroGradient 20s ease-in-out infinite alternate;
}

@keyframes heroGradient {
  0% { opacity: 0.8; transform: scale(1); }
  100% { opacity: 1; transform: scale(1.1); }
}

.m3-hero-content {
  text-align: center;
  color: var(--md-sys-color-on-primary);
  position: relative;
  z-index: 2;
  padding: 0 24px;
  max-width: 800px;
}

.m3-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.15);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 8px 20px;
  border-radius: var(--md-sys-shape-full);
  font: var(--md-sys-typescale-label-large);
  color: var(--md-sys-color-inverse-primary);
  margin-bottom: 24px;
}

.m3-hero h1 {
  font: var(--md-sys-typescale-display-large);
  color: var(--md-sys-color-on-primary);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.m3-hero h1 span {
  color: var(--md-sys-color-inverse-primary);
}

.m3-hero p {
  font: var(--md-sys-typescale-body-large);
  max-width: 600px;
  margin: 0 auto 40px;
  opacity: 0.9;
  line-height: 1.8;
}

.m3-hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Scroll indicator (bouncing arrow) */
.m3-scroll-indicator {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.7);
  font-size: 18px;
  animation: scrollBounce 2s ease-in-out infinite;
  pointer-events: none;
  z-index: 2;
  line-height: 1;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.7; }
  50% { transform: translateX(-50%) translateY(8px); opacity: 1; }
}

@keyframes scrollBounceCenter {
  0%, 100% { transform: translateY(0); opacity: 0.7; }
  50% { transform: translateY(8px); opacity: 1; }
}

@media (min-width: 769px) {
  .m3-scroll-indicator {
    bottom: 40px;
    font-size: 24px;
  }
}

.m3-hero-buttons .m3-btn {
  height: 48px;
  font-size: 15px;
  padding: 0 32px;
  border-radius: 50px;
}

/* --- Section Styles --- */
.m3-section {
  padding: 80px 0;
}

.m3-section-header {
  text-align: center;
  margin-bottom: 56px;
}

.m3-section-header h2 {
  font: var(--md-sys-typescale-headline-medium);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 12px;
}

.m3-section-header p {
  font: var(--md-sys-typescale-body-large);
  color: var(--md-sys-color-on-surface-variant);
  max-width: 600px;
  margin: 0 auto;
}

.m3-section-header .m3-divider {
  width: 48px;
  height: 3px;
  background: var(--md-sys-color-primary);
  margin: 20px auto 0;
  border-radius: var(--md-sys-shape-full);
}

/* --- About Snippet (Home) --- */
.m3-about-snippet {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.m3-about-image {
  background: var(--md-sys-color-primary-container);
  border-radius: var(--md-sys-shape-extra-large);
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--md-sys-color-on-primary-container);
  font-size: 5rem;
  position: relative;
  overflow: hidden;
}

.m3-about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--md-sys-shape-extra-large);
}

.m3-about-image::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(21, 101, 192, 0.1) 0%, transparent 60%);
  animation: floatBg 15s ease-in-out infinite;
}

@keyframes floatBg {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-20px, 20px); }
}

.m3-about-text h2 {
  font: var(--md-sys-typescale-headline-small);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 16px;
}

.m3-about-text p {
  font: var(--md-sys-typescale-body-large);
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 16px;
  line-height: 1.8;
}

.m3-about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 32px 0;
}

.m3-about-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  font: var(--md-sys-typescale-body-medium);
  color: var(--md-sys-color-on-surface);
}

.m3-about-feature i {
  color: var(--md-sys-color-primary);
  font-size: 1.1rem;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--md-sys-color-primary-container);
  border-radius: var(--md-sys-shape-full);
}

/* --- Stats Counter --- */
.m3-stats {
  background: var(--md-sys-color-primary);
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}

.m3-stats::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.m3-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.m3-stat-item {
  color: var(--md-sys-color-on-primary);
}

.m3-stat-item h3 {
  font: var(--md-sys-typescale-display-small);
  color: var(--md-sys-color-inverse-primary);
  margin-bottom: 8px;
}

.m3-stat-item p {
  font: var(--md-sys-typescale-body-medium);
  opacity: 0.9;
}

/* --- Course Cards --- */
.m3-courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.m3-course-card {
  background: var(--md-sys-color-surface-container-low);
  border-radius: var(--md-sys-shape-medium);
  overflow: hidden;
  box-shadow: var(--md-sys-elevation-1);
  transition: all var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
  display: flex;
  flex-direction: column;
}

.m3-course-card:hover {
  box-shadow: var(--md-sys-elevation-3);
  transform: translateY(-4px);
}

.m3-course-card-media {
  height: 180px;
  background: linear-gradient(135deg, var(--md-sys-color-primary-container), var(--md-sys-color-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--md-sys-color-on-primary-container);
  position: relative;
  overflow: hidden;
}

.m3-course-card-media::before {
  content: '';
  position: absolute;
  bottom: -30px;
  right: -30px;
  width: 120px;
  height: 120px;
  border: 3px solid rgba(255,255,255,0.2);
  border-radius: var(--md-sys-shape-full);
}

.m3-course-card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.m3-course-card-body h3 {
  font: var(--md-sys-typescale-title-medium);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 8px;
}

.m3-course-card-body p {
  font: var(--md-sys-typescale-body-medium);
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 16px;
  flex: 1;
}

.m3-course-card-body .m3-btn {
  align-self: flex-start;
}

/* --- Testimonials --- */
.m3-testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.m3-testimonial-card {
  background: var(--md-sys-color-surface-container-low);
  padding: 24px;
  border-radius: var(--md-sys-shape-medium);
  box-shadow: var(--md-sys-elevation-1);
  position: relative;
}

.m3-testimonial-card::before {
  content: '\201C';
  font-size: 4rem;
  color: var(--md-sys-color-primary);
  position: absolute;
  top: 12px;
  left: 20px;
  line-height: 1;
  opacity: 0.2;
  font-family: serif;
}

.m3-testimonial-stars {
  color: #F9A825;
  margin-bottom: 12px;
  font-size: 0.9rem;
}

.m3-testimonial-card p {
  font: var(--md-sys-typescale-body-medium);
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
  line-height: 1.8;
  font-style: italic;
}

.m3-testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--md-sys-color-outline-variant);
}

.m3-testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--md-sys-shape-full);
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font: var(--md-sys-typescale-label-large);
}

.m3-testimonial-info h4 {
  font: var(--md-sys-typescale-title-small);
  color: var(--md-sys-color-on-surface);
}

.m3-testimonial-info span {
  font: var(--md-sys-typescale-body-small);
  color: var(--md-sys-color-on-surface-variant);
}

/* --- CTA Banner --- */
.m3-cta-banner {
  background: linear-gradient(135deg, var(--md-sys-color-tertiary), #4A148C);
  padding: 80px 0;
  text-align: center;
  color: var(--md-sys-color-on-tertiary);
  position: relative;
  overflow: hidden;
}

.m3-cta-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 80% 50%, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.m3-cta-banner h2 {
  font: var(--md-sys-typescale-headline-medium);
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.m3-cta-banner p {
  font: var(--md-sys-typescale-body-large);
  opacity: 0.9;
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}

.m3-cta-banner .m3-btn {
  position: relative;
  z-index: 1;
}

/* --- Page Hero (Inner Pages) --- */
.m3-page-hero {
  background: linear-gradient(135deg, var(--md-sys-color-primary) 0%, #0D47A1 100%);
  padding: 160px 0 80px;
  text-align: center;
  color: var(--md-sys-color-on-primary);
  position: relative;
}

.m3-page-hero h1 {
  font: var(--md-sys-typescale-display-small);
  margin-bottom: 12px;
}

.m3-page-hero .breadcrumb {
  display: flex;
  justify-content: center;
  gap: 12px;
  font: var(--md-sys-typescale-body-medium);
  opacity: 0.9;
}

.m3-page-hero .breadcrumb a {
  color: var(--md-sys-color-inverse-primary);
}

/* --- About Page --- */
.m3-about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.m3-about-content.m3-about-content-reverse {
  direction: rtl;
}

.m3-about-content.m3-about-content-reverse > * {
  direction: ltr;
}

.m3-about-mission-img {
  width: 100%;
  max-width: 400px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.m3-about-content h2 {
  font: var(--md-sys-typescale-headline-small);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 16px;
}

.m3-about-content p {
  font: var(--md-sys-typescale-body-large);
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 16px;
  line-height: 1.8;
}

.m3-about-image-placeholder {
  background: var(--md-sys-color-primary-container);
  border-radius: var(--md-sys-shape-extra-large);
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--md-sys-color-on-primary-container);
  font-size: 4rem;
}

.m3-why-us-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.m3-why-us-card {
  background: var(--md-sys-color-surface-container-low);
  padding: 32px;
  border-radius: var(--md-sys-shape-medium);
  text-align: center;
  box-shadow: var(--md-sys-elevation-1);
  transition: all var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}

.m3-why-us-card:hover {
  box-shadow: var(--md-sys-elevation-3);
  transform: translateY(-4px);
}

.m3-why-us-card-icon {
  width: 64px;
  height: 64px;
  background: var(--md-sys-color-primary-container);
  border-radius: var(--md-sys-shape-large);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--md-sys-color-on-primary-container);
  margin: 0 auto 20px;
}

.m3-why-us-card h3 {
  font: var(--md-sys-typescale-title-medium);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 8px;
}

.m3-why-us-card p {
  font: var(--md-sys-typescale-body-medium);
  color: var(--md-sys-color-on-surface-variant);
}

/* --- Courses Page --- */
.m3-courses-filter {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.m3-course-detail-card {
  background: var(--md-sys-color-surface-container-low);
  border-radius: var(--md-sys-shape-medium);
  overflow: hidden;
  box-shadow: var(--md-sys-elevation-1);
  margin-bottom: 24px;
  display: grid;
  grid-template-columns: 200px 1fr;
  transition: all var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}

.m3-course-detail-card:hover {
  box-shadow: var(--md-sys-elevation-3);
}

.m3-course-detail-icon {
  background: linear-gradient(135deg, var(--md-sys-color-primary-container), var(--md-sys-color-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--md-sys-color-on-primary-container);
  min-height: 200px;
}

.m3-course-detail-body {
  padding: 32px;
}

.m3-course-detail-body h3 {
  font: var(--md-sys-typescale-title-large);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 8px;
}

.m3-course-meta {
  display: flex;
  gap: 24px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.m3-course-meta span {
  font: var(--md-sys-typescale-body-small);
  color: var(--md-sys-color-on-surface-variant);
  display: flex;
  align-items: center;
  gap: 8px;
}

.m3-course-meta span i {
  color: var(--md-sys-color-primary);
}

.m3-course-detail-body p {
  font: var(--md-sys-typescale-body-medium);
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 20px;
  line-height: 1.7;
}

.m3-course-price {
  font: var(--md-sys-typescale-headline-small);
  color: var(--md-sys-color-primary);
  margin-bottom: 20px;
}

.m3-course-price span {
  font: var(--md-sys-typescale-body-medium);
  color: var(--md-sys-color-on-surface-variant);
  font-weight: 400;
  text-decoration: line-through;
  margin-left: 12px;
}

.m3-course-features {
  margin-bottom: 20px;
}

.m3-course-features h4 {
  font: var(--md-sys-typescale-title-medium);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 12px;
}

.m3-course-features ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.m3-course-features li {
  font: var(--md-sys-typescale-body-medium);
  color: var(--md-sys-color-on-surface-variant);
  display: flex;
  align-items: center;
  gap: 8px;
}

.m3-course-features li i {
  color: var(--md-sys-color-primary);
}

/* --- Popular Course (Home Page) --- */
.m3-popular-course-header {
  text-align: center;
  margin-bottom: 24px;
}

.m3-popular-course-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, var(--md-sys-color-primary), var(--md-sys-color-tertiary));
  color: var(--md-sys-color-on-primary);
  padding: 6px 20px;
  border-radius: 20px;
  font: var(--md-sys-typescale-label-medium);
  font-weight: 600;
  margin-bottom: 20px;
}

.m3-popular-course-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--md-sys-color-primary-container), var(--md-sys-color-primary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 2rem;
  color: var(--md-sys-color-on-primary-container);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.m3-popular-course-header h3 {
  font: var(--md-sys-typescale-headline-medium);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 8px;
}

.m3-popular-course-price {
  font: var(--md-sys-typescale-display-small);
  color: var(--md-sys-color-primary);
  font-weight: 700;
}

.m3-popular-course-meta {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.m3-popular-course-meta span {
  font: var(--md-sys-typescale-body-medium);
  color: var(--md-sys-color-on-surface-variant);
  display: flex;
  align-items: center;
  gap: 8px;
}

.m3-popular-course-meta span i {
  color: var(--md-sys-color-primary);
}

.m3-popular-course-action {
  text-align: center;
  margin-top: 80px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.m3-popular-course-action.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Curved Timeline --- */
.m3-timeline-scroll-wrapper {
  position: relative;
  height: 250vh; /* Creates the scrollable space to scrub the animation */
  margin: 40px 0;
}

.m3-curved-timeline {
  position: sticky;
  top: 10vh; /* Stick to the screen when reached */
  max-width: 700px;
  margin: 0 auto;
  padding: 20px 0;
}

.m3-curved-path {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: visible;
}

.m3-path-bg {
  stroke: var(--md-sys-color-outline-variant);
  opacity: 0.3;
}

.m3-path-line {
  stroke: var(--md-sys-color-primary);
  stroke-linecap: round;
  stroke-linejoin: round;
}

.m3-path-dot {
  fill: var(--md-sys-color-primary);
  filter: drop-shadow(0 0 8px rgba(var(--md-sys-color-primary-rgb, 103, 80, 164), 0.7));
}

.m3-curved-items {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.m3-curved-item {
  display: flex;
  align-items: center;
  gap: 16px;
  opacity: 0;
  padding: 10px 0;
  transition: none;
}

.m3-curved-item.is-active {
  opacity: 1;
  transform: translateX(0) !important;
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.m3-curved-item.left {
  padding-right: 50%;
  justify-content: flex-start;
  transform: translateX(-40px);
}

.m3-curved-item.right {
  padding-left: 50%;
  justify-content: flex-end;
  transform: translateX(40px);
}

.m3-curved-item.right .m3-curved-content {
  order: -1;
}

.m3-curved-node {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: 50%;
  background: var(--md-sys-color-surface);
  border: 3px solid var(--md-sys-color-outline-variant);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transform: scale(0) rotate(180deg);
  transition: transform 0.4s ease, background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.m3-curved-item.is-active .m3-curved-node {
  transform: scale(1) rotate(0deg);
}

.m3-curved-node i {
  font-size: 0.85rem;
  color: transparent;
  transform: scale(0);
  transition: transform 0.3s ease 0.2s, color 0.3s ease 0.2s;
}

.m3-curved-item.is-active .m3-curved-node i {
  color: var(--md-sys-color-on-primary);
  transform: scale(1);
}

.m3-curved-item.is-active .m3-curved-node {
  background: var(--md-sys-color-primary);
  border-color: var(--md-sys-color-primary);
  box-shadow: 0 0 0 5px rgba(var(--md-sys-color-primary-rgb, 103, 80, 164), 0.2),
              0 4px 12px rgba(var(--md-sys-color-primary-rgb, 103, 80, 164), 0.3);
}

.m3-curved-content {
  font: var(--md-sys-typescale-body-medium);
  color: var(--md-sys-color-on-surface);
  padding: 12px 18px;
  background: var(--md-sys-color-surface);
  border-radius: var(--md-sys-shape-small);
  box-shadow: var(--md-sys-elevation-1);
  white-space: nowrap;
}

/* --- Testimonials Page --- */
.m3-testimonials-masonry {
  columns: 3;
  column-gap: 24px;
}

.m3-testimonial-masonry-card {
  background: var(--md-sys-color-surface-container-low);
  padding: 24px;
  border-radius: var(--md-sys-shape-medium);
  box-shadow: var(--md-sys-elevation-1);
  margin-bottom: 24px;
  break-inside: avoid;
  transition: all var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}

.m3-testimonial-masonry-card:hover {
  box-shadow: var(--md-sys-elevation-2);
}

/* --- Gallery Page --- */
.m3-gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.m3-gallery-item {
  position: relative;
  border-radius: var(--md-sys-shape-medium);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 1;
  background: var(--md-sys-color-surface-container-highest);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--md-sys-color-primary);
  font-size: 2rem;
  transition: all var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}

.m3-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}

.m3-gallery-item:hover img {
  transform: scale(1.05);
}

.m3-gallery-item::after {
  content: '\f00e';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  color: var(--md-sys-color-on-primary);
  font-size: 1.25rem;
  transition: transform var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
  background: var(--md-sys-color-primary);
  width: 48px;
  height: 48px;
  border-radius: var(--md-sys-shape-full);
  display: flex;
  align-items: center;
  justify-content: center;
}

.m3-gallery-item:hover {
  transform: scale(1.02);
}

.m3-gallery-item:hover::after {
  transform: translate(-50%, -50%) scale(1);
}

/* --- Lightbox --- */
.m3-lightbox {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.9);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  touch-action: none;
}

.m3-lightbox.active {
  display: flex;
}

.m3-lightbox-close {
  position: absolute;
  top: 20px;
  right: 30px;
  color: var(--md-sys-color-on-inverse-surface);
  font-size: 1.5rem;
  cursor: pointer;
  background: var(--md-sys-color-inverse-surface);
  width: 48px;
  height: 48px;
  border-radius: var(--md-sys-shape-full);
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.m3-lightbox-close:hover {
  background: var(--md-sys-color-inverse-primary);
  color: var(--md-sys-color-inverse-surface);
}

.m3-lightbox-content {
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.m3-lightbox-content img {
  max-width: 90vw;
  max-height: 82vh;
  object-fit: contain;
  border-radius: var(--md-sys-shape-medium);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.m3-lightbox-content .lightbox-caption {
  font: var(--md-sys-typescale-title-medium);
  color: #fff;
  text-transform: capitalize;
  text-align: center;
}

/* --- Contact Page --- */
.m3-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.m3-contact-form {
  background: var(--md-sys-color-surface-container-low);
  padding: 40px;
  border-radius: var(--md-sys-shape-extra-large);
  box-shadow: var(--md-sys-elevation-1);
}

.m3-contact-form h2 {
  font: var(--md-sys-typescale-headline-small);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 32px;
}

.m3-form-group {
  margin-bottom: 24px;
}

.m3-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.m3-contact-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.m3-contact-info-card {
  background: var(--md-sys-color-surface-container-low);
  padding: 24px;
  border-radius: var(--md-sys-shape-medium);
  box-shadow: var(--md-sys-elevation-1);
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: all var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}

.m3-contact-info-card:hover {
  box-shadow: var(--md-sys-elevation-2);
}

.m3-contact-info-card-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: var(--md-sys-color-primary-container);
  border-radius: var(--md-sys-shape-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--md-sys-color-on-primary-container);
}

.m3-contact-info-card h3,
.m3-contact-info-card h4 {
  font: var(--md-sys-typescale-title-small);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 4px;
}

.m3-contact-info-card p {
  font: var(--md-sys-typescale-body-medium);
  color: var(--md-sys-color-on-surface-variant);
}

.m3-map-placeholder {
  border-radius: var(--md-sys-shape-medium);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* --- Footer --- */
.m3-footer {
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  padding: 64px 0 0;
}

.m3-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 48px;
}

.m3-footer-col h3 {
  font: var(--md-sys-typescale-title-medium);
  margin-bottom: 24px;
  color: var(--md-sys-color-primary);
}

.m3-footer-col p {
  font: var(--md-sys-typescale-body-medium);
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.8;
}

.m3-footer-col ul li {
  margin-bottom: 12px;
}

.m3-footer-col ul li a {
  font: var(--md-sys-typescale-body-medium);
  color: var(--md-sys-color-on-surface-variant);
  transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.m3-footer-col ul li a:hover {
  color: var(--md-sys-color-primary);
}

.m3-footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  font: var(--md-sys-typescale-body-medium);
  color: var(--md-sys-color-on-surface-variant);
}

.m3-footer-contact li i {
  color: var(--md-sys-color-primary);
  margin-top: 4px;
  width: 20px;
}

.m3-footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.m3-footer-social a {
  width: 44px;
  height: 44px;
  border-radius: var(--md-sys-shape-full);
  border: 1px solid var(--md-sys-color-outline-variant);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--md-sys-color-on-surface-variant);
  transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.m3-footer-social a:hover {
  background: var(--md-sys-color-primary);
  border-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
}

.m3-footer-bottom {
  border-top: 1px solid var(--md-sys-color-outline-variant);
  padding: 24px 0;
  text-align: center;
  font: var(--md-sys-typescale-body-small);
  color: var(--md-sys-color-on-surface-variant);
}

/* --- Material 3 FAB Speed Dial Menu --- */
.m3-fab-menu {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

/* Scrim overlay */
.m3-fab-menu-scrim {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.32);
  opacity: 0;
  visibility: hidden;
  z-index: 999;
  transition: opacity var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard),
              visibility var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}

.m3-fab-menu-scrim.visible {
  opacity: 1;
  visibility: visible;
}

/* Mini FABs container - positioned above the trigger */
.m3-fab-menu-items {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 16px;
  padding-bottom: 0;
}

/* Individual FAB menu item */
.m3-fab-menu-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: flex-end;
}

/* Label tooltip */
.m3-fab-menu-label {
  white-space: nowrap;
  background: var(--md-sys-color-inverse-surface);
  color: var(--md-sys-color-inverse-on-surface);
  font: var(--md-sys-typescale-label-medium);
  padding: 6px 12px;
  border-radius: var(--md-sys-shape-extra-small);
  box-shadow: var(--md-sys-elevation-2);
  opacity: 0;
  visibility: hidden;
  transform: translateX(8px);
  transition: opacity var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
              visibility var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
              transform var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
  pointer-events: none;
  order: -1;
}

.m3-fab-menu-label::after {
  content: '';
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  border: 6px solid transparent;
  border-left-color: var(--md-sys-color-inverse-surface);
}

.m3-fab-menu-item:hover .m3-fab-menu-label {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

/* Mini FAB button */
.m3-fab-menu-mini {
  width: 40px;
  height: 40px;
  border-radius: var(--md-sys-shape-medium);
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--md-sys-elevation-2);
  transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
  transform: scale(0);
  opacity: 0;
  pointer-events: none;
  flex-shrink: 0;
}

.m3-fab-menu-mini i {
  font-size: 20px;
  transition: transform var(--md-sys-motion-duration-short3) var(--md-sys-motion-easing-standard);
}

.m3-fab-menu.active .m3-fab-menu-mini {
  transform: scale(1);
  opacity: 1;
  pointer-events: auto;
}

.m3-fab-menu.active .m3-fab-menu-items .m3-fab-menu-item:nth-child(1) .m3-fab-menu-mini {
  transition-delay: 150ms;
}

.m3-fab-menu.active .m3-fab-menu-items .m3-fab-menu-item:nth-child(2) .m3-fab-menu-mini {
  transition-delay: 100ms;
}

.m3-fab-menu.active .m3-fab-menu-items .m3-fab-menu-item:nth-child(3) .m3-fab-menu-mini {
  transition-delay: 50ms;
}

.m3-fab-menu.active .m3-fab-menu-items .m3-fab-menu-item:nth-child(4) .m3-fab-menu-mini {
  transition-delay: 0ms;
}

.m3-fab-menu-mini:hover {
  box-shadow: var(--md-sys-elevation-3);
}

.m3-fab-menu-mini:active {
  box-shadow: var(--md-sys-elevation-2);
}

/* Main FAB trigger */
.m3-fab-menu-trigger {
  position: relative;
  z-index: 1001;
  width: 56px;
  height: 56px;
  border-radius: var(--md-sys-shape-large);
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--md-sys-elevation-3);
  transition: all var(--md-sys-motion-duration-medium1) var(--md-sys-motion-easing-standard);
  flex-shrink: 0;
}

.m3-fab-menu-trigger:hover {
  box-shadow: var(--md-sys-elevation-4);
}

.m3-fab-menu-trigger:active {
  box-shadow: var(--md-sys-elevation-3);
}

.m3-fab-menu-trigger i {
  font-size: 24px;
  transition: transform var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-emphasized);
  display: flex;
  align-items: center;
  justify-content: center;
}

.m3-fab-menu.active .m3-fab-menu-trigger {
  background: var(--md-sys-color-tertiary-container);
  color: var(--md-sys-color-on-tertiary-container);
}

.m3-fab-menu.active .m3-fab-menu-trigger i {
  transform: rotate(45deg);
}

/* Scroll-to-top variant of mini FAB (no special positioning - just a regular menu item) */

/* --- Standalone Scroll to Top FAB (Landing Page) --- */
.m3-fab-scroll-top-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: scale(0.8);
  transition: opacity var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard),
              visibility var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard),
              transform var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
  pointer-events: none;
}

.m3-fab-scroll-top-float.visible {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
  pointer-events: auto;
}

/* Landing page: hide speed dial when scrolled, show standalone scroll-to-top */
.is-landing .m3-fab-menu.scrolled-away {
  opacity: 0;
  visibility: hidden;
  transform: scale(0.8);
  pointer-events: none;
  transition: opacity var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard),
              visibility var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard),
              transform var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}

.is-landing .m3-fab-menu {
  transition: opacity var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard),
              visibility var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard),
              transform var(--md-sys-motion-duration-medium2) var(--md-sys-motion-easing-standard);
}

/* --- Form Success/Error Messages --- */
.m3-form-message {
  padding: 16px 20px;
  border-radius: var(--md-sys-shape-small);
  margin-bottom: 24px;
  font: var(--md-sys-typescale-body-medium);
  display: none;
}

.m3-form-message.success {
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  display: block;
}

.m3-form-message.error {
  background: var(--md-sys-color-error-container);
  color: var(--md-sys-color-on-error-container);
  display: block;
}

/* --- Field Error --- */
.field-error {
  font: var(--md-sys-typescale-body-small);
  color: var(--md-sys-color-error);
  margin-top: 4px;
}

/* --- Video Testimonials Carousel --- */
.m3-carousel {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 0 16px;
}

.m3-carousel-track {
  display: flex;
  align-items: center;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 20px 40px;
}

.m3-carousel-track::-webkit-scrollbar {
  display: none;
}

.m3-carousel-slide {
  flex: 0 0 75%;
  scroll-snap-align: center;
  transition: opacity 0.5s ease, transform 0.5s ease;
  opacity: 0.45;
  transform: scale(0.88);
}

.m3-carousel-slide.active {
  opacity: 1;
  transform: scale(1);
}

.m3-carousel-slide.adjacent {
  opacity: 0.65;
  transform: scale(0.92);
}

.m3-video-card {
  border-radius: var(--md-sys-shape-extra-large);
  overflow: hidden;
  box-shadow: var(--md-sys-elevation-1);
  transition: box-shadow 0.5s ease;
}

.m3-carousel-slide.active .m3-video-card {
  box-shadow: var(--md-sys-elevation-4);
}

.m3-video-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 9 / 14;
  overflow: hidden;
  background: #0a0a1a;
}

.m3-video-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  cursor: pointer;
}

.m3-video-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: linear-gradient(0deg, rgba(0,0,0,0.65) 0%, transparent 35%, transparent 65%, rgba(0,0,0,0.15) 100%);
  z-index: 2;
}

.m3-video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 72px;
  height: 72px;
  background: rgba(255, 255, 255, 0.2);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.3s ease;
}

.m3-video-play-btn:hover {
  background: var(--md-sys-color-primary);
  border-color: var(--md-sys-color-primary);
  transform: translate(-50%, -50%) scale(1.1);
}

.m3-video-play-btn i {
  margin-left: 4px;
}

.m3-carousel-slide:not(.active) .m3-video-play-btn {
  opacity: 0;
  pointer-events: none;
}

.m3-video-wrapper video.playing ~ .m3-video-overlay .m3-video-play-btn,
.m3-video-play-btn.hidden {
  opacity: 0;
  pointer-events: none;
}

.m3-video-caption {
  padding: 20px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.m3-video-name {
  font: var(--md-sys-typescale-title-medium);
  color: #fff;
  font-weight: 600;
}

.m3-video-role {
  font: var(--md-sys-typescale-body-small);
  color: rgba(255, 255, 255, 0.75);
}

/* --- Carousel Controls --- */
.m3-carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 24px;
}

.m3-carousel-arrow {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  box-shadow: var(--md-sys-elevation-1);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.m3-carousel-arrow:hover {
  background: var(--md-sys-color-primary-container);
  box-shadow: var(--md-sys-elevation-2);
}

.m3-carousel-arrow:active {
  transform: scale(0.92);
}

.m3-carousel-dots {
  display: flex;
  align-items: center;
  gap: 8px;
}

.m3-carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 4px;
  border: none;
  background: var(--md-sys-color-outline-variant);
  cursor: pointer;
  padding: 0;
  transition: background 0.3s ease;
}

.m3-carousel-dot.active {
  width: 24px;
  background: var(--md-sys-color-primary);
}

/* M3 Expressive Speed Dial */
.m3-speed-dial {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  flex-direction: column-reverse;
  align-items: flex-end;
  gap: 10px;
  pointer-events: none;
}

/* Suppress all transitions during initial page load to prevent flash */
.m3-speed-dial.speed-dial-init,
.m3-speed-dial.speed-dial-init .m3-speed-dial-fab,
.m3-speed-dial.speed-dial-init .m3-speed-dial-action {
  transition: none !important;
  animation: none !important;
}

.m3-speed-dial > * {
  pointer-events: auto;
}

.m3-speed-dial-fab {
  height: 48px;
  padding: 0 24px;
  border-radius: 14px;
  border: none;
  background: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), background 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  z-index: 2;
}

.m3-speed-dial-fab:hover {
  box-shadow: 0 6px 20px rgba(0,0,0,0.4);
}

.m3-speed-dial-fab.open {
  background: var(--md-sys-color-error);
}

.m3-speed-dial-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  overflow: hidden;
  pointer-events: none;
}

.m3-speed-dial.open .m3-speed-dial-actions {
  pointer-events: auto;
}

.m3-speed-dial-action {
  height: 40px;
  padding: 0 18px;
  border-radius: 20px;
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  opacity: 0;
  transform: scale(0.6) translateY(20px);
  transform-origin: bottom right;
  transition: opacity 0.25s ease, transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), background 0.2s ease;
  pointer-events: none;
}

.m3-speed-dial-action:hover {
  background: var(--md-sys-color-primary-container);
}

.m3-speed-dial.open .m3-speed-dial-action {
  opacity: 1;
  transform: scale(1) translateY(0);
  pointer-events: auto;
}

.m3-speed-dial.open .m3-speed-dial-action:nth-child(1) { transition-delay: 0s; }
.m3-speed-dial.open .m3-speed-dial-action:nth-child(2) { transition-delay: 0.05s; }
.m3-speed-dial.open .m3-speed-dial-action:nth-child(3) { transition-delay: 0.1s; }

/* --- M3 Multi-Browse Carousel Redesign --- */
.m3-carousel-section {
  padding: 40px 0;
  background: var(--md-sys-color-surface);
}

.m3-carousel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 24px;
}

.m3-carousel-header .m3-section-header {
  width: 100%;
  text-align: center;
}

.m3-carousel-header h2 {
  font: var(--md-sys-typescale-headline-medium);
  color: var(--md-sys-color-on-surface);
}

.m3-carousel-controls {
  display: flex;
  gap: 12px;
}

/* Carousel controls outside edge-to-edge carousel */
.m3-carousel-section .m3-carousel-controls {
  justify-content: center;
  margin-top: 24px;
  padding: 0 16px;
}

.m3-carousel-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--md-sys-color-outline-variant);
  background: transparent;
  color: var(--md-sys-color-on-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.m3-carousel-btn:hover:not(:disabled) {
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  border-color: transparent;
}

.m3-carousel-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.m3-mb-carousel {
  width: 100%;
  position: relative;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.m3-mb-carousel::-webkit-scrollbar {
  display: none;
}

.m3-mb-carousel.m3-edge-to-edge {
  width: 100vw;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  overflow: hidden;
}

.m3-mb-track {
  display: flex;
  align-items: center;
  width: 100%;
  touch-action: pan-y;
  transition: transform 0.6s var(--md-sys-motion-easing-emphasized);
}

.m3-mb-carousel.m3-edge-to-edge .m3-mb-track {
  /* Match the container padding: (100vw - min(90vw, 1200px)) / 2 + 16px container padding */
  padding-left: calc(max(5vw, (100vw - 1200px) / 2) + 16px);
  padding-right: calc(max(5vw, (100vw - 1200px) / 2) + 16px);
  box-sizing: border-box;
}

.m3-mb-item {
  height: 240px;
  border-radius: 28px;
  overflow: hidden;
  flex-shrink: 0;
  transition: width 0.6s var(--md-sys-motion-easing-emphasized), 
              opacity 0.6s var(--md-sys-motion-easing-emphasized),
              margin 0.6s var(--md-sys-motion-easing-emphasized);
  background: var(--md-sys-color-surface-container);
  cursor: pointer;
  position: relative;
}

.m3-mb-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--md-sys-motion-easing-emphasized);
}

.m3-mb-item:hover img {
  transform: scale(1.05);
}

/* Default state for hidden items */
.m3-mb-item {
  opacity: 0;
  margin-right: 0;
  pointer-events: none;
  flex: 0 0 auto;
  width: 0;
}

.m3-mb-item[data-size="hidden"] {
  opacity: 0;
  margin-right: 0;
  pointer-events: none;
  width: 0;
}

/* Sizes - JS sets explicit pixel widths via inline styles */
.m3-mb-item[data-size="large"] {
  flex: 0 0 auto;
  opacity: 1;
  pointer-events: auto;
}

.m3-mb-item[data-size="small"] {
  flex: 0 0 auto;
  opacity: 0.85;
  pointer-events: auto;
}

.m3-mb-item[data-size="small"] .m3-video-wrapper {
  aspect-ratio: 9 / 18;
}

/* Desktop Sizes */
@media (min-width: 768px) {
  .m3-mb-item { height: 360px; }
  .m3-mb-item[data-size="small"] .m3-video-wrapper {
    aspect-ratio: 9 / 18;
  }
}

@media (min-width: 1200px) {
  .m3-mb-item { height: 460px; }
  .m3-mb-item[data-size="small"] .m3-video-wrapper {
    aspect-ratio: 9 / 18;
  }
}

/* Fullscreen Video Overlay */
.m3-video-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.m3-video-fullscreen.active {
  display: flex;
  opacity: 1;
  visibility: visible;
}

.m3-video-fullscreen-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
}

.m3-video-fullscreen-container {
  position: relative;
  width: 90vw;
  max-width: 900px;
  height: 80vh;
  max-height: 700px;
  border-radius: 16px;
  overflow: hidden;
  background: #000;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.m3-video-fullscreen-container video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.m3-video-fullscreen-controls {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 2;
}

.m3-fs-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.5);
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, border-color 0.2s;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.m3-fs-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: #fff;
}

@media (max-width: 767px) {
  .m3-video-fullscreen-container {
    width: 95vw;
    height: 60vh;
    border-radius: 12px;
  }

  .m3-fs-btn {
    width: 40px;
    height: 40px;
    font-size: 15px;
  }
}

/* ============================================
   English Ability Test Styles
   ============================================ */

/* Hero Test Button (M3 Expressive) */
.hero-test-btn {
  background: linear-gradient(135deg, rgba(255,255,255,0.25) 0%, rgba(255,255,255,0.08) 100%);
  border: none;
  color: #fff;
  padding: 0 32px;
  height: 48px;
  font-size: 15px;
  border-radius: 50px;
  letter-spacing: 0.3px;
  transition: all 0.4s var(--md-sys-motion-easing-emphasized);
}

.hero-test-btn:hover {
  background: linear-gradient(135deg, rgba(255,255,255,0.4) 0%, rgba(255,255,255,0.15) 100%);
  transform: scale(1.05);
  box-shadow: 0 6px 24px rgba(255, 255, 255, 0.2);
}

.hero-test-btn:active {
  transform: scale(0.98);
}

/* Test Intro Card */
.test-intro-card {
  max-width: 650px;
  margin: 0 auto;
  background: var(--md-sys-color-surface-container);
  border-radius: var(--md-sys-shape-extra-large);
  padding: 48px 40px;
  text-align: center;
  box-shadow: var(--md-sys-elevation-1);
}

.test-welcome-img {
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: var(--md-sys-shape-large);
  margin-bottom: 24px;
}

.test-intro-icon {
  width: 80px;
  height: 80px;
  border-radius: var(--md-sys-shape-large);
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  margin: 0 auto 24px;
}

.test-intro-card h2 {
  font: var(--md-sys-typescale-headline-medium);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 12px;
}

.test-intro-card > p {
  font: var(--md-sys-typescale-body-large);
  color: var(--md-sys-color-on-surface-variant);
  margin-bottom: 24px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.test-info-badges {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.test-info-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--md-sys-shape-full);
  background: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
  font: var(--md-sys-typescale-label-large);
}

.test-student-form h3 {
  font: var(--md-sys-typescale-title-large);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 20px;
}

.test-student-form .m3-form-row {
  display: flex;
  gap: 16px;
}

.test-student-form .m3-form-group {
  flex: 1;
}

.test-start-btn {
  margin-top: 24px;
  width: 100%;
  height: 48px;
  font-size: 16px;
}

/* Test Top Bar (Timer + Progress) */
.test-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 32px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

.test-area {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
}

.test-results {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
}

.test-progress {
  flex: 1;
}

.test-progress-bar {
  height: 8px;
  background: var(--md-sys-color-surface-container-highest);
  border-radius: var(--md-sys-shape-full);
  overflow: hidden;
  margin-bottom: 6px;
}

.test-progress-fill {
  height: 100%;
  background: var(--md-sys-color-primary);
  border-radius: var(--md-sys-shape-full);
  transition: width 0.4s var(--md-sys-motion-easing-emphasized);
  width: 10%;
}

.test-progress-text {
  font: var(--md-sys-typescale-label-medium);
  color: var(--md-sys-color-on-surface-variant);
}

.test-timer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--md-sys-shape-full);
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  font: var(--md-sys-typescale-label-large);
  flex-shrink: 0;
  transition: all 0.3s ease;
}

.test-timer i {
  font-size: 16px;
}

.timer-value {
  font-variant-numeric: tabular-nums;
  min-width: 45px;
}

.test-timer.timer-warning {
  background: var(--md-sys-color-error-container);
  color: var(--md-sys-color-on-error-container);
  animation: timerPulse 1s ease-in-out infinite;
}

@keyframes timerPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

/* Question Card */
.test-question-card {
  max-width: 700px;
  width: 100%;
  min-height: 450px;
  margin: 0 auto 32px;
  background: var(--md-sys-color-surface);
  border-radius: var(--md-sys-shape-extra-large);
  padding: 40px;
  box-shadow: var(--md-sys-elevation-1);
  border: 1px solid var(--md-sys-color-outline-variant);
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
}

.test-question-number {
  font: var(--md-sys-typescale-label-large);
  color: var(--md-sys-color-primary);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.test-question-text {
  font: var(--md-sys-typescale-headline-small);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 28px;
  line-height: 1.5;
}

/* Test Options */
.test-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  flex: 1;
}

.test-option {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  border-radius: var(--md-sys-shape-medium);
  border: 2px solid var(--md-sys-color-outline-variant);
  cursor: pointer;
  transition: all 0.25s var(--md-sys-motion-easing-standard);
}

.test-option:hover {
  background: var(--md-sys-color-surface-container-low);
  border-color: var(--md-sys-color-primary);
}

.test-option.selected {
  background: var(--md-sys-color-primary-container);
  border-color: var(--md-sys-color-primary);
}

.test-option input[type="radio"] {
  display: none;
}

.test-option-radio {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid var(--md-sys-color-outline);
  flex-shrink: 0;
  position: relative;
  transition: all 0.2s ease;
}

.test-option.selected .test-option-radio {
  border-color: var(--md-sys-color-primary);
  background: var(--md-sys-color-primary);
}

.test-option.selected .test-option-radio::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--md-sys-color-on-primary);
}

.test-option-text {
  font: var(--md-sys-typescale-body-large);
  color: var(--md-sys-color-on-surface);
}

/* Navigation Buttons */
.test-nav-buttons {
  display: flex;
  justify-content: space-between;
  max-width: 700px;
  margin: 0 auto;
}

.test-nav-buttons .m3-btn {
  min-width: 140px;
}

/* Results */
.test-results-card {
  max-width: 700px;
  margin: 0 auto;
  background: var(--md-sys-color-surface);
  border-radius: var(--md-sys-shape-extra-large);
  padding: 48px 40px;
  box-shadow: var(--md-sys-elevation-2);
}

.test-results-header {
  text-align: center;
  margin-bottom: 32px;
}

.test-results-header h2 {
  font: var(--md-sys-typescale-headline-medium);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 8px;
}

.test-score-section {
  display: flex;
  justify-content: center;
  margin-bottom: 40px;
}

.test-score-circle {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 4px solid var(--md-sys-color-primary);
}

.test-score-value {
  font: var(--md-sys-typescale-display-small);
  color: var(--md-sys-color-primary);
}

.test-score-percentage {
  font: var(--md-sys-typescale-title-medium);
  color: var(--md-sys-color-on-surface-variant);
}

.test-result-message {
  font: var(--md-sys-typescale-body-large);
  color: var(--md-sys-color-on-surface-variant);
  text-align: center;
  margin-top: 16px;
}

.test-breakdown-header {
  margin-bottom: 16px;
}

.test-breakdown-header h3 {
  font: var(--md-sys-typescale-title-large);
  color: var(--md-sys-color-on-surface);
}

/* Breakdown */
.test-breakdown {
  text-align: left;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.test-breakdown-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 20px;
  border-radius: var(--md-sys-shape-medium);
  border: 1px solid var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-surface-container-low);
}

.test-breakdown-item.correct {
  background: #F1F8E9;
  border-color: #C5E1A5;
}

.test-breakdown-item.incorrect {
  background: #FFF3E0;
  border-color: #FFCC80;
}

.test-breakdown-icon {
  font-size: 20px;
  margin-top: 2px;
  flex-shrink: 0;
}

.test-breakdown-item.correct .test-breakdown-icon {
  color: #2E7D32;
}

.test-breakdown-item.incorrect .test-breakdown-icon {
  color: #E65100;
}

.test-breakdown-content {
  flex: 1;
  min-width: 0;
}

.test-breakdown-question {
  font: var(--md-sys-typescale-body-medium);
  color: var(--md-sys-color-on-surface);
  margin-bottom: 6px;
}

.test-breakdown-answer {
  font: var(--md-sys-typescale-body-small);
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.6;
}

.test-breakdown-answer strong {
  color: var(--md-sys-color-on-surface);
}

/* Result Actions */
.test-result-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.test-result-actions .m3-btn {
  min-width: 180px;
  height: 48px;
}

/* Responsive */
@media (max-width: 600px) {
  .test-intro-card {
    padding: 32px 20px;
  }

  .test-question-card {
    padding: 24px 20px;
  }

  .test-results-card {
    padding: 32px 20px;
  }

  .test-student-form .m3-form-row {
    flex-direction: column;
    gap: 0;
  }

  .test-top-bar {
    flex-direction: column;
    gap: 12px;
  }

  .test-timer {
    width: 100%;
    justify-content: center;
  }

  .test-nav-buttons {
    flex-direction: column;
    gap: 12px;
  }

  .test-nav-buttons .m3-btn {
    width: 100%;
  }

  .test-result-actions .m3-btn {
    width: 100%;
  }

  .test-score-circle {
    width: 150px;
    height: 150px;
  }

  .test-score-value {
    font-size: 28px;
  }
}

/* --- Material 3 Container Loading Indicator --- */
.page-loader {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  background: rgba(248, 250, 254, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 250ms cubic-bezier(0.2, 0, 0, 1), visibility 250ms cubic-bezier(0.2, 0, 0, 1);
}

.page-loader.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-content {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Material 3 Contained / Container Surface */
.m3-loader-container,
.m3-loading-indicator-contained {
  width: 64px;
  height: 64px;
  border-radius: var(--md-sys-shape-large, 16px);
  background-color: var(--md-sys-color-surface-container-high, #EDEEF4);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: var(--md-sys-elevation-3, 0 4px 16px rgba(0, 0, 0, 0.12), 0 1px 4px rgba(0, 0, 0, 0.08));
  border: 1px solid rgba(255, 255, 255, 0.8);
  position: relative;
  transform: scale(0.85);
  transition: transform 250ms cubic-bezier(0.2, 0, 0, 1);
  will-change: transform;
}

.page-loader.active .m3-loader-container,
.page-loader.active .m3-loading-indicator-contained {
  transform: scale(1);
}

.m3-loading-indicator-contained::before {
  display: none !important;
}

.m3-loader-container canvas,
.m3-loading-indicator-contained canvas,
#loaderCanvas {
  display: block;
  position: relative;
  z-index: 1;
}

@keyframes m3Spin {
  to { transform: rotate(360deg); }
}

/* --- Floating WhatsApp Button (Desktop Only) --- */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 20px;
  z-index: 999;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
  transition: all 0.3s ease;
  text-decoration: none;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 16px rgba(37, 211, 102, 0.5);
  color: #fff;
}

@media (min-width: 769px) {
  .whatsapp-float {
    display: flex;
  }
}