/* ============================================================
   CHEY.IN — Design System
   Modern · Minimal · Impactful
   ============================================================ */

/* — Google Fonts — */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* ============================================================
   CSS Custom Properties
   ============================================================ */
:root {
  /* Backgrounds */
  --bg:          #07070F;
  --bg-2:        #0C0C1E;
  --bg-3:        #101028;
  --surface:     rgba(255, 255, 255, 0.04);
  --surface-h:   rgba(255, 255, 255, 0.07);

  /* Borders */
  --border:      rgba(255, 255, 255, 0.07);
  --border-h:    rgba(255, 255, 255, 0.16);

  /* Typography */
  --text:        #F0EFFB;
  --text-2:      #8A88AA;
  --text-3:      #4C4A6A;
  --font-head:   'Space Grotesk', sans-serif;
  --font-body:   'Inter', sans-serif;

  /* Product Palette */
  --study:       #9B6DFF;
  --study-soft:  rgba(155, 109, 255, 0.12);
  --play:        #FF6B47;
  --play-soft:   rgba(255, 107, 71, 0.12);
  --score:       #00D4AA;
  --score-soft:  rgba(0, 212, 170, 0.12);
  --learn:       #FFB800;
  --learn-soft:  rgba(255, 184, 0, 0.12);

  /* Global */
  --accent:      #9B6DFF;
  --accent-2:    #00D4AA;
  --gradient:    linear-gradient(135deg, #9B6DFF 0%, #00D4AA 100%);
  --gradient-45: linear-gradient(45deg, #9B6DFF 0%, #FF6B47 50%, #00D4AA 100%);

  /* Spacing */
  --r:           16px;
  --r-lg:        24px;
  --r-xl:        32px;
  --ease:        cubic-bezier(0.4, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --t:           0.3s var(--ease);
}

/* ============================================================
   Reset
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; }

/* ============================================================
   Utility
   ============================================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.container--narrow { max-width: 800px; }
.container--wide   { max-width: 1400px; }

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); border: 0;
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================================
   Navigation
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--t), backdrop-filter var(--t), border-bottom var(--t);
}
.nav.scrolled {
  background: rgba(7, 7, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav__logo img {
  height: 36px;
  width: auto;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav__link {
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-2);
  transition: color var(--t), background var(--t);
  position: relative;
}
.nav__link:hover,
.nav__link.active {
  color: var(--text);
  background: var(--surface);
}
.nav__link.active::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
}

.nav__cta {
  padding: 9px 20px;
  border-radius: 100px;
  font-size: 0.88rem;
  font-weight: 600;
  background: var(--gradient);
  color: #fff;
  transition: opacity var(--t), transform var(--t);
}
.nav__cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav__hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--t), opacity var(--t);
}
.nav__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__mobile {
  display: none;
  position: fixed;
  top: 72px; left: 0; right: 0;
  background: rgba(7, 7, 15, 0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  z-index: 99;
  flex-direction: column;
  gap: 4px;
}
.nav__mobile.open { display: flex; }
.nav__mobile .nav__link {
  font-size: 1rem;
  padding: 12px 16px;
}


/* ============================================================
   Hero Section
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 120px 0 80px;
}

/* Animated orb background */
.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orb-drift 20s ease-in-out infinite alternate;
  opacity: 0.35;
}
.orb--1 {
  width: 600px; height: 600px;
  top: -200px; left: -100px;
  background: radial-gradient(circle, #9B6DFF 0%, transparent 70%);
  animation-duration: 18s;
}
.orb--2 {
  width: 500px; height: 500px;
  top: 20%; right: -150px;
  background: radial-gradient(circle, #00D4AA 0%, transparent 70%);
  animation-duration: 22s;
  animation-delay: -8s;
}
.orb--3 {
  width: 400px; height: 400px;
  bottom: -100px; left: 30%;
  background: radial-gradient(circle, #FF6B47 0%, transparent 70%);
  animation-duration: 25s;
  animation-delay: -14s;
}

@keyframes orb-drift {
  0%   { transform: translate(0, 0) scale(1); }
  33%  { transform: translate(60px, -40px) scale(1.1); }
  66%  { transform: translate(-40px, 60px) scale(0.9); }
  100% { transform: translate(30px, -20px) scale(1.05); }
}

/* Star field */
.hero__stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 10% 20%, rgba(255,255,255,0.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 30% 60%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 50% 15%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 70% 80%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 85% 40%, rgba(255,255,255,0.6) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 20% 85%, rgba(155,109,255,0.8) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 60% 30%, rgba(0,212,170,0.8) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 90% 70%, rgba(255,107,71,0.8) 0%, transparent 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 28px;
  background: var(--surface);
}
.hero__eyebrow span {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gradient);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}

.hero__title {
  font-family: var(--font-head);
  font-size: clamp(3rem, 7vw, 6.5rem);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
  max-width: 900px;
}
.hero__title .gradient-text {
  background: var(--gradient-45);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 6s ease infinite;
}
@keyframes gradient-shift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.hero__sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-2);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 40px;
  font-weight: 400;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero__float-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 480px;
}

/* Floating product chips */
.float-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  transition: border-color var(--t), background var(--t), transform var(--t);
  animation: float-anim 6s ease-in-out infinite;
  text-decoration: none;
}
.float-chip:hover {
  border-color: var(--border-h);
  background: var(--surface-h);
  transform: translateY(-4px) !important;
  animation-play-state: paused;
}
.float-chip--study { animation-delay: 0s; }
.float-chip--play  { animation-delay: -1.5s; }
.float-chip--score { animation-delay: -3s; }
.float-chip--learn { animation-delay: -4.5s; }

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

.float-chip__icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.float-chip__icon img { width: 100%; height: 100%; object-fit: contain; }
.float-chip__name {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-2);
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 100px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform var(--t), opacity var(--t), box-shadow var(--t);
  cursor: pointer;
  line-height: 1;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 8px 32px rgba(155, 109, 255, 0.3);
}
.btn--primary:hover {
  box-shadow: 0 12px 40px rgba(155, 109, 255, 0.45);
}

.btn--ghost {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
}
.btn--ghost:hover {
  background: var(--surface-h);
  border-color: var(--border-h);
}

.btn--sm {
  padding: 9px 18px;
  font-size: 0.85rem;
}

.btn--app {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  transition: border-color var(--t), background var(--t), transform var(--t);
  font-size: 0.82rem;
  font-weight: 500;
}
.btn--app:hover {
  border-color: var(--border-h);
  background: var(--surface-h);
  transform: translateY(-2px);
}
.btn--app svg { width: 20px; height: 20px; flex-shrink: 0; }

/* ============================================================
   Section Base
   ============================================================ */
section { padding: 100px 0; }
.section--tight { padding: 64px 0; }
.section--flush { padding: 0; }

.section__eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 16px;
  padding: 5px 14px;
  border-radius: 100px;
  border: 1px solid currentColor;
  opacity: 0.7;
}
.section__title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
}
.section__sub {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 560px;
  line-height: 1.7;
}
.section__header { margin-bottom: 60px; }
.section__header--center { text-align: center; }
.section__header--center .section__sub { margin: 0 auto; }

/* ============================================================
   Products Overview (Home)
   ============================================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (max-width: 768px) { .products-grid { grid-template-columns: 1fr; } }

.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 36px;
  border-radius: var(--r-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: border-color var(--t), background var(--t), transform var(--t);
  text-decoration: none;
  color: inherit;
}
.product-card:hover {
  background: var(--surface-h);
  border-color: var(--border-h);
  transform: translateY(-4px);
}
.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--card-accent, var(--gradient));
  opacity: 0;
  transition: opacity var(--t);
}
.product-card:hover::before { opacity: 1; }

.product-card--study { --card-accent: linear-gradient(90deg, #9B6DFF, #C084FC); }
.product-card--play  { --card-accent: linear-gradient(90deg, #FF6B47, #FBBF24); }
.product-card--score { --card-accent: linear-gradient(90deg, #00D4AA, #06B6D4); }
.product-card--learn { --card-accent: linear-gradient(90deg, #FFB800, #F59E0B); }

.product-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.product-card__icon {
  width: 64px; height: 64px;
  border-radius: 16px;
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.product-card__icon img {
  width: 100%; height: 100%; object-fit: contain;
}
.product-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 1px solid currentColor;
}
.product-card--study .product-card__badge { color: var(--study); border-color: rgba(155,109,255,0.3); background: var(--study-soft); }
.product-card--play  .product-card__badge { color: var(--play);  border-color: rgba(255,107,71,0.3);  background: var(--play-soft); }
.product-card--score .product-card__badge { color: var(--score); border-color: rgba(0,212,170,0.3);   background: var(--score-soft); }
.product-card--learn .product-card__badge { color: var(--learn); border-color: rgba(255,184,0,0.3);   background: var(--learn-soft); }

.product-card__logo {
  height: 42px;
  width: auto;
  object-fit: contain;
  object-position: left center;
  align-self: center;
  margin-bottom: 0;
}
.product-card__title {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}
.product-card__desc {
  font-size: 0.93rem;
  color: var(--text-2);
  line-height: 1.65;
  margin-bottom: 24px;
  flex: 1;
}
.product-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}
.product-card__tag {
  font-size: 0.75rem;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 100px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-2);
}
.product-card__arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-2);
  transition: color var(--t), gap var(--t);
}
.product-card:hover .product-card__arrow {
  gap: 10px;
  color: var(--text);
}

/* ============================================================
   Philosophy / Features
   ============================================================ */
.features-bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 900px) { .features-bento { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .features-bento { grid-template-columns: 1fr; } }

.feature-tile {
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  transition: border-color var(--t), background var(--t);
}
.feature-tile:hover {
  background: var(--surface-h);
  border-color: var(--border-h);
}
.feature-tile--wide { grid-column: span 2; }

.feature-tile__icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
  font-size: 1.4rem;
}
.feature-tile__title {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.feature-tile__desc {
  font-size: 0.88rem;
  color: var(--text-2);
  line-height: 1.65;
}

/* ============================================================
   Stats
   ============================================================ */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
}
@media (max-width: 768px) { .stats-row { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .stats-row { grid-template-columns: 1fr; } }

.stat-item {
  background: var(--bg-2);
  padding: 36px 28px;
  text-align: center;
}
.stat-item__num {
  font-family: var(--font-head);
  font-size: 2.8rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-item__label {
  font-size: 0.85rem;
  color: var(--text-2);
  font-weight: 500;
}

/* ============================================================
   Audience Cards (dual perspective)
   ============================================================ */
.audience-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 768px) { .audience-grid { grid-template-columns: 1fr; } }

.audience-card {
  padding: 36px;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background: var(--surface);
}
.audience-card--parent { border-color: rgba(155, 109, 255, 0.2); }
.audience-card--school { border-color: rgba(0, 212, 170, 0.2); }

.audience-card__eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
  display: flex; align-items: center; gap: 8px;
}
.audience-card--parent .audience-card__eyebrow { color: var(--study); }
.audience-card--school .audience-card__eyebrow { color: var(--score); }

.audience-card__title {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}
.audience-card__desc {
  font-size: 0.93rem;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 24px;
}
.audience-card__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.audience-card__item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-2);
}
.audience-card__item::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  margin-top: 6px;
  flex-shrink: 0;
}
.audience-card--parent .audience-card__item::before { background: var(--study); }
.audience-card--school .audience-card__item::before { background: var(--score); }

/* ============================================================
   CTA Section
   ============================================================ */
.cta-section {
  position: relative;
  overflow: hidden;
}
.cta-card {
  position: relative;
  padding: 80px 64px;
  border-radius: 32px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  overflow: hidden;
  text-align: center;
}
.cta-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(155,109,255,0.12) 0%, transparent 70%);
}
.cta-card__title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
  position: relative;
}
.cta-card__sub {
  font-size: 1.05rem;
  color: var(--text-2);
  margin-bottom: 36px;
  position: relative;
}
.cta-card__actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  position: relative;
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  padding: 60px 0 32px;
  border-top: 1px solid var(--border);
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
@media (max-width: 900px)  { .footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
@media (max-width: 600px)  { .footer__grid { grid-template-columns: 1fr; gap: 28px; } }

.footer__brand img { height: 32px; margin-bottom: 16px; }
.footer__brand p {
  font-size: 0.88rem;
  color: var(--text-2);
  line-height: 1.65;
  max-width: 260px;
  margin-bottom: 20px;
}
.footer__social {
  display: flex; gap: 10px;
}
.footer__social a {
  width: 38px; height: 38px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  transition: border-color var(--t), background var(--t);
}
.footer__social a:hover {
  background: var(--surface-h);
  border-color: var(--border-h);
}
.footer__social svg { width: 16px; height: 16px; }

.footer__col-title {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-3);
  margin-bottom: 16px;
}
.footer__links {
  display: flex; flex-direction: column; gap: 10px;
}
.footer__link {
  font-size: 0.9rem;
  color: var(--text-2);
  transition: color var(--t);
}
.footer__link:hover { color: var(--text); }

.footer__bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer__copy {
  font-size: 0.83rem;
  color: var(--text-3);
}
.footer__legal {
  display: flex; gap: 20px;
}
.footer__legal a {
  font-size: 0.83rem;
  color: var(--text-3);
  transition: color var(--t);
}
.footer__legal a:hover { color: var(--text-2); }

/* ============================================================
   Product Page Hero
   ============================================================ */
.product-hero {
  position: relative;
  padding: 140px 0 80px;
  overflow: hidden;
}
.product-hero__bg {
  position: absolute; inset: 0;
  pointer-events: none;
}
.product-hero__glow {
  position: absolute;
  width: 700px; height: 700px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.2;
  top: -200px; left: -100px;
}
.product-hero--study .product-hero__glow { background: var(--study); }
.product-hero--play  .product-hero__glow { background: var(--play); }
.product-hero--score .product-hero__glow { background: var(--score); }
.product-hero--learn .product-hero__glow { background: var(--learn); }

.product-hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 2;
}
@media (max-width: 900px) {
  .product-hero__grid { grid-template-columns: 1fr; }
}

.product-hero__tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.78rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  margin-bottom: 24px;
  border: 1px solid currentColor;
}
.product-hero--study .product-hero__tag { color: var(--study); background: var(--study-soft); }
.product-hero--play  .product-hero__tag { color: var(--play);  background: var(--play-soft); }
.product-hero--score .product-hero__tag { color: var(--score); background: var(--score-soft); }
.product-hero--learn .product-hero__tag { color: var(--learn); background: var(--learn-soft); }

.product-hero__logo {
  height: 40px; width: auto;
  object-fit: contain;
  object-position: left center;
  align-self: flex-start;
  margin-bottom: 20px;
}
.product-hero__title {
  font-family: var(--font-head);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.product-hero__desc {
  font-size: 1.1rem;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 480px;
}
.product-hero__apps {
  display: flex; gap: 12px; flex-wrap: wrap;
}

/* Product illustration pane */
.product-hero__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-hero__visual svg {
  width: 100%;
  max-width: 480px;
  height: auto;
}

/* ============================================================
   Feature List (Product Pages)
   ============================================================ */
.feature-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 900px) { .feature-list { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .feature-list { grid-template-columns: 1fr; } }

.feature-item {
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  transition: border-color var(--t), background var(--t);
}
.feature-item:hover {
  background: var(--surface-h);
  border-color: var(--border-h);
}
.feature-item__icon {
  font-size: 1.8rem;
  margin-bottom: 14px;
  display: block;
}
.feature-item__title {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.feature-item__desc {
  font-size: 0.875rem;
  color: var(--text-2);
  line-height: 1.65;
}

/* ============================================================
   Content Categories (StudyChey)
   ============================================================ */
.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
@media (max-width: 900px) { .category-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 600px) { .category-grid { grid-template-columns: repeat(2, 1fr); } }

.category-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-2);
  transition: border-color var(--t), color var(--t), background var(--t);
}
.category-pill:hover {
  background: var(--surface-h);
  border-color: var(--border-h);
  color: var(--text);
}
.category-pill__emoji { font-size: 1.3rem; }

/* Age groups */
.age-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
@media (max-width: 900px) { .age-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .age-grid { grid-template-columns: 1fr; } }

.age-card {
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  text-align: center;
  transition: border-color var(--t), background var(--t);
}
.age-card:hover { background: var(--surface-h); border-color: var(--border-h); }
.age-card__range {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}
.age-card__label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}
.age-card__desc {
  font-size: 0.85rem;
  color: var(--text-2);
  line-height: 1.6;
}

/* ============================================================
   Contact Page
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 64px;
  align-items: start;
}
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

.contact-info__item {
  display: flex; align-items: flex-start; gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.contact-info__icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-size: 1.1rem;
}
.contact-info__label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-3);
  margin-bottom: 4px;
}
.contact-info__value {
  font-size: 0.95rem;
  color: var(--text-2);
}
.contact-info__value a:hover { color: var(--text); }

/* Form */
.form { display: flex; flex-direction: column; gap: 20px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 600px) { .form__row { grid-template-columns: 1fr; } }
.form__group { display: flex; flex-direction: column; gap: 8px; }
.form__label {
  font-size: 0.82rem; font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase; letter-spacing: 0.07em;
}
.form__input,
.form__textarea,
.form__select {
  padding: 13px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  color: var(--text);
  font-size: 0.95rem;
  transition: border-color var(--t), background var(--t);
  outline: none;
  width: 100%;
}
.form__input:focus,
.form__textarea:focus,
.form__select:focus {
  border-color: var(--accent);
  background: var(--surface-h);
}
.form__textarea { resize: vertical; min-height: 140px; }
.form__select { -webkit-appearance: none; cursor: pointer; }

/* ============================================================
   Prose (Privacy, Terms)
   ============================================================ */
.prose-page {
  padding: 140px 0 80px;
}
.prose {
  max-width: 720px;
  margin: 0 auto;
}
.prose h2 {
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 700;
  margin: 48px 0 14px;
  letter-spacing: -0.02em;
}
.prose h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 28px 0 10px;
  color: var(--text-2);
}
.prose p, .prose li {
  font-size: 0.95rem;
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 14px;
}
.prose ul { padding-left: 20px; }
.prose li { list-style: disc; }
.prose a { color: var(--accent); }
.prose a:hover { text-decoration: underline; }
.prose strong { color: var(--text); font-weight: 600; }

/* ============================================================
   About page
   ============================================================ */
.about-hero {
  padding: 140px 0 80px;
  text-align: center;
}
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 768px) { .team-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .team-grid { grid-template-columns: 1fr; } }
.value-card {
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  text-align: center;
  transition: border-color var(--t), background var(--t);
}
.value-card:hover { background: var(--surface-h); border-color: var(--border-h); }
.value-card__icon { font-size: 2rem; margin-bottom: 14px; }
.value-card__title {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.value-card__desc {
  font-size: 0.875rem;
  color: var(--text-2);
  line-height: 1.65;
}

/* ============================================================
   ScoreChey — How it works
   ============================================================ */
.steps-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  position: relative;
}
@media (max-width: 900px) { .steps-row { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .steps-row { grid-template-columns: 1fr; } }

.step-card {
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  text-align: center;
  position: relative;
}
.step-card__num {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--score-soft);
  border: 1px solid rgba(0,212,170,0.3);
  color: var(--score);
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}
.step-card__title { font-weight: 700; font-size: 0.95rem; margin-bottom: 8px; }
.step-card__desc { font-size: 0.85rem; color: var(--text-2); line-height: 1.6; }

/* ============================================================
   Divider
   ============================================================ */
.divider {
  width: 100%; height: 1px;
  background: var(--border);
  margin: 0;
}

/* ============================================================
   Alerts / Notices
   ============================================================ */
.notice {
  padding: 14px 20px;
  border-radius: var(--r);
  font-size: 0.9rem;
  line-height: 1.6;
  border: 1px solid;
}
.notice--info { background: var(--study-soft); border-color: rgba(155,109,255,0.3); color: var(--study); }
.notice--success { background: var(--score-soft); border-color: rgba(0,212,170,0.3); color: var(--score); }

/* ============================================================
   Responsive — Mobile
   ============================================================ */
@media (max-width: 900px) {
  .nav__links,
  .nav__cta { display: none; }
  .nav__hamburger { display: flex; }
  section { padding: 72px 0; }
  .product-hero { padding: 120px 0 60px; }
  .cta-card { padding: 48px 28px; }
}
@media (max-width: 600px) {
  .hero__float-grid { grid-template-columns: 1fr 1fr; }
  .features-bento .feature-tile--wide { grid-column: span 1; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   Animations & misc
   ============================================================ */
@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
@keyframes bounce-in {
  0%   { transform: scale(0.6); opacity: 0; }
  60%  { transform: scale(1.05); opacity: 1; }
  100% { transform: scale(1); }
}

/* ============================================================
   Founder Card
   ============================================================ */
.founder-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 56px;
  align-items: start;
  padding: 48px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  position: relative;
  overflow: hidden;
  transition: border-color var(--t);
}
.founder-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient);
}
.founder-card::after {
  content: '';
  position: absolute;
  top: -120px; right: -80px;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(155,109,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}
@media (max-width: 900px) {
  .founder-card {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 32px;
  }
}

.founder-card__photo {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.founder-card__photo img {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  position: relative;
  z-index: 2;
  border: 3px solid rgba(155, 109, 255, 0.3);
  display: block;
  margin: 0 auto;
}
.founder-card__photo-ring {
  position: absolute;
  width: 220px; height: 220px;
  border-radius: 50%;
  border: 1px solid rgba(155, 109, 255, 0.15);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  animation: ring-pulse 3s ease-in-out infinite;
}
@keyframes ring-pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
  50% { transform: translate(-50%, -50%) scale(1.08); opacity: 0.15; }
}

.founder-card__name-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}
.founder-card__name {
  font-family: var(--font-head);
  font-size: 1.7rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 4px;
}
.founder-card__role {
  font-size: 0.88rem;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.founder-card__links {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}
.founder-card__link {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-2);
  transition: color var(--t), border-color var(--t), background var(--t), transform var(--t);
}
.founder-card__link:hover {
  background: var(--surface-h);
  border-color: var(--border-h);
  color: var(--text);
  transform: translateY(-2px);
}

.founder-card__quote {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-style: italic;
  color: var(--text);
  line-height: 1.65;
  padding: 16px 20px;
  border-left: 2px solid var(--accent);
  background: rgba(155, 109, 255, 0.05);
  border-radius: 0 var(--r) var(--r) 0;
  margin-bottom: 20px;
}

.founder-card__bio {
  font-size: 0.93rem;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 14px;
}

.founder-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.founder-card__tags span {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
  background: var(--study-soft);
  border: 1px solid rgba(155, 109, 255, 0.2);
  color: var(--study);
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--bg-3); border-radius: 3px; }

/* Responsive Grid Utilities */
.grid-3-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 900px) {
  .grid-3-col {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 600px) {
  .grid-3-col {
    grid-template-columns: 1fr;
  }
}::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

/* Selection */
::selection { background: rgba(155, 109, 255, 0.3); color: var(--text); }