/* ============================================================
   ENGAGE AI — STYLES
   ------------------------------------------------------------
   Sections:
     1. Theme tokens (colors/spacing) — edit brand colors here
     2. Base & layout
     3. Buttons & shared UI
     4. Navigation
     5. Hero
     6. Sections (About, What We Do, Why, Impact, Programs, Get Involved)
     7. Footer
     8. Animations & reveal-on-scroll
     9. Responsive (mobile)
   ============================================================ */

/* ---------- 1. THEME TOKENS ---------- */
:root {
  /* Brand colors — change these to re-skin the whole site */
  --c-cyan: #6ee7ff;
  --c-violet: #a78bfa;
  --c-blue: #5b8cff;
  --grad: linear-gradient(135deg, var(--c-cyan), var(--c-violet));
  --grad-soft: linear-gradient(135deg, rgba(110,231,255,.18), rgba(167,139,250,.18));

  /* Dark theme (default) */
  --bg: #0a0e1a;
  --bg-alt: #0e1424;
  --surface: rgba(255,255,255,.04);
  --surface-2: rgba(255,255,255,.06);
  --border: rgba(255,255,255,.10);
  --text: #eaf0ff;
  --text-dim: #9aa6c4;
  --shadow: 0 20px 50px -20px rgba(0,0,0,.6);

  --radius: 18px;
  --radius-lg: 26px;
  --maxw: 1180px;
  --ease: cubic-bezier(.22,1,.36,1);
}

/* Light theme — applied when <html data-theme="light"> */
html[data-theme="light"] {
  --bg: #f6f8ff;
  --bg-alt: #eef1fb;
  --surface: rgba(20,30,60,.04);
  --surface-2: rgba(20,30,60,.06);
  --border: rgba(20,30,60,.12);
  --text: #14203a;
  --text-dim: #5a6a8c;
  --shadow: 0 20px 50px -24px rgba(40,50,90,.28);
}

/* ---------- 2. BASE & LAYOUT ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background .4s var(--ease), color .4s var(--ease);
}

h1, h2, h3, .brand__name {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  line-height: 1.15;
  letter-spacing: -.02em;
}

a { color: inherit; text-decoration: none; }

.container { width: min(100% - 2.5rem, var(--maxw)); margin-inline: auto; }

.section { padding: clamp(4rem, 9vw, 7.5rem) 0; }
.section--alt { background: var(--bg-alt); }

.eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin-bottom: .9rem;
}
html[data-theme="light"] .eyebrow { color: var(--c-blue); }

.section__head { max-width: 720px; margin-bottom: 3.5rem; }
.section__head h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); }
.section__intro { color: var(--text-dim); margin-top: 1rem; font-size: 1.05rem; }

.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

code {
  font-family: ui-monospace, monospace;
  background: var(--surface-2);
  padding: .1em .4em;
  border-radius: 6px;
  font-size: .85em;
}

/* ---------- 3. BUTTONS & SHARED UI ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-weight: 600;
  font-size: .98rem;
  padding: .9rem 1.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s;
  white-space: nowrap;
}
.btn svg { transition: transform .25s var(--ease); }
.btn--primary {
  background: var(--grad);
  color: #0a0e1a;
  box-shadow: 0 10px 30px -10px rgba(110,231,255,.5);
}
.btn--primary:hover { transform: translateY(-3px); box-shadow: 0 16px 36px -10px rgba(167,139,250,.6); }
.btn--primary:hover svg { transform: translateX(4px); }
.btn--ghost {
  background: var(--surface);
  border-color: var(--border);
  color: var(--text);
  backdrop-filter: blur(8px);
}
.btn--ghost:hover { transform: translateY(-3px); background: var(--surface-2); border-color: var(--c-violet); }
.btn--small { padding: .6rem 1.1rem; font-size: .9rem; background: var(--surface-2); border-color: var(--border); }
.btn--small:hover { border-color: var(--c-cyan); }
.btn--full { width: 100%; justify-content: center; margin-top: .4rem; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-size: .85rem;
  font-weight: 500;
  color: var(--text-dim);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: .45rem 1rem;
  border-radius: 999px;
  margin-bottom: 1.6rem;
}
.pill__dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 0 0 rgba(110,231,255,.6);
  animation: ping 2.2s infinite;
}

.icon-btn {
  display: grid;
  place-items: center;
  width: 42px; height: 42px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  transition: background .2s, border-color .2s;
}
.icon-btn:hover { background: var(--surface-2); border-color: var(--c-violet); }

/* ---------- 4. NAVIGATION ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  padding: 1rem 0;
  transition: background .3s, backdrop-filter .3s, padding .3s, border-color .3s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
  padding: .65rem 0;
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: flex; align-items: center; gap: .6rem; }
.brand__mark { color: var(--c-cyan); display: grid; place-items: center; }
.brand__name { font-size: 1.3rem; font-weight: 700; }
.brand__ai { color: transparent; background: var(--grad); -webkit-background-clip: text; background-clip: text; }

.nav__links { display: flex; align-items: center; gap: 2rem; }
.nav__links a { font-size: .96rem; color: var(--text-dim); transition: color .2s; position: relative; }
.nav__links a:not(.nav__cta)::after {
  content: ""; position: absolute; left: 0; bottom: -6px;
  width: 0; height: 2px; background: var(--grad); transition: width .25s var(--ease);
}
.nav__links a:hover { color: var(--text); }
.nav__links a:hover:not(.nav__cta)::after { width: 100%; }
.nav__cta {
  padding: .55rem 1.15rem;
  border-radius: 999px;
  background: var(--grad);
  color: #0a0e1a !important;
  font-weight: 600;
}
.nav__cta:hover { transform: translateY(-2px); }
.nav__actions { display: flex; align-items: center; gap: .6rem; }

.icon-sun { display: none; }
html[data-theme="light"] .icon-moon { display: none; }
html[data-theme="light"] .icon-sun { display: block; }

.nav__burger { display: none; flex-direction: column; align-items: center; justify-content: center; gap: 4px; }
.nav__burger span { width: 18px; height: 2px; background: var(--text); border-radius: 2px; transition: .25s; }
.nav__burger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 5. HERO ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 7rem 0 4rem;
  overflow: hidden;
}
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .55; }
.hero__glow {
  position: absolute; inset: 0;
  background:
    radial-gradient(40rem 30rem at 75% 15%, rgba(167,139,250,.20), transparent 60%),
    radial-gradient(35rem 28rem at 15% 80%, rgba(110,231,255,.18), transparent 60%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 3rem;
  align-items: center;
}
.hero__title { font-size: clamp(2.4rem, 6vw, 4.4rem); font-weight: 700; margin: .4rem 0 1.3rem; }
.hero__sub { font-size: clamp(1.02rem, 1.6vw, 1.2rem); color: var(--text-dim); max-width: 36rem; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; margin: 2.2rem 0 2.6rem; }
.hero__trust { display: flex; flex-wrap: wrap; align-items: center; gap: .8rem 1.4rem; color: var(--text-dim); font-size: .85rem; }
.hero__trust > span { font-weight: 600; letter-spacing: .1em; text-transform: uppercase; font-size: .72rem; }
.hero__trust-items { display: flex; flex-wrap: wrap; gap: 1.2rem; }
.hero__trust-items span { color: var(--text); }

/* Floating glass cards visual */
.hero__visual { position: relative; height: 440px; }
.orb { position: absolute; border-radius: 50%; filter: blur(40px); opacity: .55; }
.orb--1 { width: 240px; height: 240px; background: var(--c-violet); top: 0; right: 10%; animation: float 9s ease-in-out infinite; }
.orb--2 { width: 200px; height: 200px; background: var(--c-cyan); bottom: 5%; left: 5%; animation: float 11s ease-in-out infinite reverse; }

.glass-card {
  position: absolute;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
  padding: 1.2rem;
}
.glass-card--a { top: 8%; left: 8%; width: 200px; animation: float 7s ease-in-out infinite; }
.glass-card--b { top: 38%; right: 4%; width: 215px; animation: float 8.5s ease-in-out infinite reverse; }
.glass-card--c { bottom: 6%; left: 22%; width: 175px; display: flex; align-items: center; gap: .7rem; animation: float 10s ease-in-out infinite; }
.gc__icon { font-size: 1.7rem; margin-bottom: .8rem; }
.gc__lines i { display: block; height: 8px; border-radius: 4px; background: var(--grad-soft); margin-bottom: .5rem; }
.gc__lines i:nth-child(2) { width: 80%; } .gc__lines i:nth-child(3) { width: 55%; }
.gc__bar { display: flex; align-items: flex-end; gap: 6px; height: 70px; margin-bottom: .7rem; }
.gc__bar span { flex: 1; height: var(--h); background: var(--grad); border-radius: 4px 4px 0 0; opacity: .85; }
.glass-card p { font-size: .82rem; color: var(--text-dim); }
.gc__node { width: 30px; height: 30px; border-radius: 50%; background: var(--grad); box-shadow: 0 0 16px rgba(110,231,255,.7); }

.scroll-cue {
  position: absolute; bottom: 1.8rem; left: 50%; transform: translateX(-50%);
  width: 26px; height: 42px; border: 2px solid var(--border); border-radius: 14px;
  display: grid; place-items: start center; padding-top: 7px;
}
.scroll-cue span { width: 4px; height: 8px; border-radius: 2px; background: var(--c-cyan); animation: scrollDot 1.8s infinite; }

/* ---------- 6. SECTIONS ---------- */
/* About */
.about__grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 3.5rem; align-items: start; }
.about__lead p { font-size: 1.12rem; color: var(--text-dim); margin-bottom: 1.2rem; }
.about__lead strong { color: var(--text); }
.about__points { list-style: none; display: grid; gap: 1.4rem; }
.about__points li { display: flex; gap: 1rem; }
.about__points .dot { flex: none; width: 14px; height: 14px; margin-top: 6px; border-radius: 50%; background: var(--grad); box-shadow: 0 0 12px rgba(110,231,255,.5); }
.about__points strong { display: block; font-size: 1.05rem; }
.about__points p { color: var(--text-dim); font-size: .95rem; }

/* What We Do — cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.7rem;
  transition: transform .35s var(--ease), border-color .35s, background .35s;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0;
  background: var(--grad-soft); opacity: 0; transition: opacity .35s;
}
.card:hover { transform: translateY(-8px); border-color: transparent; }
.card:hover::before { opacity: 1; }
.card > * { position: relative; }
.card__icon {
  width: 56px; height: 56px; display: grid; place-items: center;
  font-size: 1.7rem; border-radius: 16px;
  background: var(--surface-2); border: 1px solid var(--border);
  margin-bottom: 1.2rem;
}
.card h3 { font-size: 1.2rem; margin-bottom: .6rem; }
.card p { color: var(--text-dim); font-size: .96rem; }
.card--cta { display: flex; flex-direction: column; justify-content: center; align-items: flex-start; background: var(--grad-soft); }
.card--cta .btn { margin-top: 1rem; }

/* Why it matters */
.why__grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 3.5rem; align-items: center; }
.why__text h2 { font-size: clamp(1.8rem, 3.6vw, 2.7rem); margin-bottom: 1.2rem; }
.why__text p { color: var(--text-dim); margin-bottom: 1rem; font-size: 1.05rem; }
.why__text strong { color: var(--text); }
.why__pillars { display: grid; gap: 1rem; margin-top: 2rem; }
.why__pillars > div {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 1rem 1.2rem;
  display: grid; grid-template-columns: auto 1fr; gap: .2rem 1rem; align-items: center;
}
.why__pillars span { font-size: 1.4rem; grid-row: span 2; }
.why__pillars strong { font-size: 1rem; }
.why__pillars p { margin: 0; font-size: .9rem; }

.why__visual { position: relative; aspect-ratio: 1; display: grid; place-items: center; }
.ring { position: absolute; border-radius: 50%; border: 1px solid var(--border); }
.ring--1 { inset: 0; border-top-color: var(--c-cyan); animation: spin 14s linear infinite; }
.ring--2 { inset: 14%; border-right-color: var(--c-violet); animation: spin 10s linear infinite reverse; }
.ring--3 { inset: 28%; border-bottom-color: var(--c-blue); animation: spin 8s linear infinite; }
.why__core {
  width: 40%; aspect-ratio: 1; border-radius: 50%;
  display: grid; place-items: center; text-align: center;
  font-family: 'Space Grotesk'; font-weight: 700; font-size: 1.6rem;
  background: var(--grad); color: #0a0e1a;
  box-shadow: 0 0 50px -8px rgba(167,139,250,.6);
}
.why__core small { font-size: .62rem; font-weight: 500; letter-spacing: .12em; text-transform: uppercase; }

/* Impact / stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; }
.stat {
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.4rem 1rem;
  transition: transform .35s var(--ease), border-color .35s;
}
.stat:hover { transform: translateY(-6px); border-color: var(--c-violet); }
.stat__num {
  font-family: 'Space Grotesk'; font-weight: 700;
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat__label { color: var(--text-dim); font-size: .98rem; margin-top: .4rem; }

/* Programs */
.programs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.4rem; }
.program {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  transition: transform .35s var(--ease), border-color .35s;
}
.program:hover { transform: translateY(-6px); border-color: var(--c-cyan); }
.program__tag {
  display: inline-block; font-size: .75rem; font-weight: 600;
  letter-spacing: .08em; text-transform: uppercase;
  color: var(--c-cyan); background: var(--surface-2);
  border: 1px solid var(--border); padding: .35rem .8rem; border-radius: 999px;
  margin-bottom: 1rem;
}
.program h3 { font-size: 1.4rem; margin-bottom: .7rem; }
.program p { color: var(--text-dim); margin-bottom: 1.2rem; }
.program__link { font-weight: 600; color: var(--c-violet); transition: gap .2s; }
.program__link:hover { color: var(--c-cyan); }

/* Get involved */
.get__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3.5rem; align-items: start; }
.get__intro h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); margin-bottom: 1rem; }
.get__intro > p { color: var(--text-dim); font-size: 1.08rem; }
.get__roles { display: grid; gap: 1rem; margin-top: 2rem; }
.get__role {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 1.2rem 1.4rem;
  transition: border-color .3s, transform .3s;
}
.get__role:hover { border-color: var(--c-violet); transform: translateX(6px); }
.get__role h3 { font-size: 1.1rem; margin-bottom: .3rem; }
.get__role p { color: var(--text-dim); font-size: .95rem; }

.get__form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
}
.get__form h3 { font-size: 1.4rem; margin-bottom: 1.4rem; }
.field { margin-bottom: 1.1rem; }
.field label { display: block; font-size: .88rem; font-weight: 600; margin-bottom: .4rem; color: var(--text-dim); }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px; padding: .8rem 1rem;
  transition: border-color .2s, box-shadow .2s;
  resize: vertical;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--c-cyan);
  box-shadow: 0 0 0 3px rgba(110,231,255,.18);
}
.get__form-note { font-size: .9rem; margin-top: .9rem; min-height: 1.2rem; }
.get__form-note.ok { color: var(--c-cyan); }
.get__form-note.err { color: #ff7a90; }

/* ---------- 7. FOOTER ---------- */
.footer { background: var(--bg-alt); border-top: 1px solid var(--border); }
.footer__inner {
  display: grid; grid-template-columns: 1.4fr 1fr 1.2fr; gap: 2rem;
  padding: 3.5rem 0 2.5rem;
}
.footer__brand p { color: var(--text-dim); margin-top: .6rem; max-width: 22rem; font-size: .95rem; }
.footer__links { display: flex; flex-direction: column; gap: .7rem; }
.footer__links a { color: var(--text-dim); transition: color .2s; }
.footer__links a:hover { color: var(--c-cyan); }
.footer__contact { display: flex; flex-direction: column; gap: .6rem; color: var(--text-dim); font-size: .95rem; }
.footer__contact a:hover { color: var(--c-cyan); }
.footer__bar { border-top: 1px solid var(--border); padding: 1.3rem 0; text-align: center; color: var(--text-dim); font-size: .85rem; }

/* ---------- 7b. EXTRA COMPONENTS (curriculum, quotes, tools, team) ---------- */

/* Curriculum syllabus */
.syllabus { list-style: none; display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; counter-reset: none; }
.syl {
  display: flex; gap: 1.1rem; align-items: flex-start;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; padding: 1.3rem 1.4rem;
  transition: transform .3s var(--ease), border-color .3s, background .3s;
}
.syl:hover { transform: translateY(-4px); border-color: var(--c-cyan); background: var(--surface-2); }
.syl__no {
  flex: none; width: 46px; height: 46px; display: grid; place-items: center;
  font-family: 'Space Grotesk'; font-weight: 700; font-size: .95rem;
  color: #0a0e1a; background: var(--grad); border-radius: 12px;
}
.syl h3 { font-size: 1.05rem; margin-bottom: .3rem; }
.syl p { color: var(--text-dim); font-size: .92rem; }

/* Testimonials */
.quotes { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; margin-top: 3rem; }
.quote {
  background: var(--grad-soft); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 2rem 2.2rem; position: relative;
}
.quote::before {
  content: "\201C"; font-family: 'Space Grotesk'; font-size: 4rem; line-height: 1;
  color: var(--c-violet); opacity: .5; position: absolute; top: .6rem; left: 1.2rem;
}
.quote blockquote { font-size: 1.1rem; font-weight: 500; margin: 1.4rem 0 1rem; }
.quote figcaption { color: var(--text-dim); font-size: .92rem; }

/* Tools list */
.tools__cat {
  font-size: 1.25rem; margin: 2.6rem 0 1.2rem;
  padding-left: .9rem; border-left: 3px solid var(--c-cyan);
}
.tools__cat:first-of-type { margin-top: 0; }
.tools { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.tool {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 1.2rem;
  transition: transform .3s var(--ease), border-color .3s;
}
.tool:hover { transform: translateY(-4px); border-color: var(--c-violet); }
.tool strong { display: block; font-family: 'Space Grotesk'; font-size: 1.02rem; margin-bottom: .35rem; }
.tool p { color: var(--text-dim); font-size: .88rem; }

/* Team */
.team { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; margin-bottom: 1rem; }
.person {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.6rem 1.4rem; text-align: center;
  transition: transform .3s var(--ease), border-color .3s;
}
.person:hover { transform: translateY(-5px); border-color: var(--c-cyan); }
.person__avatar {
  width: 60px; height: 60px; margin: 0 auto .9rem; border-radius: 50%;
  display: grid; place-items: center; overflow: hidden;
  font-family: 'Space Grotesk'; font-weight: 700; font-size: 1.2rem;
  color: #0a0e1a; background: var(--grad);
}
.person__avatar img { width: 100%; height: 100%; object-fit: cover; }
.person h4 { font-family: 'Space Grotesk'; font-size: 1.05rem; }
.person span { display: block; color: var(--c-cyan); font-size: .82rem; font-weight: 600; margin: .2rem 0 .6rem; }
.person p { color: var(--text-dim); font-size: .86rem; }

/* ---------- 7c. TOOL LAUNCHER LINKS ---------- */
.tool { display: flex; flex-direction: column; }
.tool p { flex: 1; }
.tool__try {
  margin-top: .9rem; align-self: flex-start;
  font-size: .85rem; font-weight: 600; color: var(--c-violet);
  transition: color .2s;
}
.tool__try:hover { color: var(--c-cyan); }

/* Lesson video embed (YouTube iframe target; placeholder until ID is set) */
.lesson-embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  margin: 1rem 0 1.2rem;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #000;
}
.lesson-embed iframe {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  border: 0;
  display: block;
}
.lesson-embed__link {
  position: absolute; inset: 0;
  display: block;
  overflow: hidden;
  cursor: pointer;
}
.lesson-embed__thumb {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease), filter .25s;
  background: #000;
}
.lesson-embed__link:hover .lesson-embed__thumb {
  transform: scale(1.04);
  filter: brightness(0.85);
}
.lesson-embed__play {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  transition: transform .25s var(--ease);
  pointer-events: none;
}
.lesson-embed__play svg { filter: drop-shadow(0 6px 16px rgba(0,0,0,.55)); }
.lesson-embed__link:hover .lesson-embed__play { transform: scale(1.08); }
.lesson-embed__badge {
  position: absolute;
  bottom: .8rem; right: .8rem;
  padding: .35rem .8rem;
  background: rgba(10,14,26,.78);
  color: #fff;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  border-radius: 999px;
  backdrop-filter: blur(8px);
  pointer-events: none;
}
.lesson-embed--placeholder {
  display: grid;
  place-items: center;
  padding: 1.2rem;
  text-align: center;
  background:
    repeating-linear-gradient(45deg, rgba(255,255,255,.02) 0 12px, transparent 12px 24px),
    var(--surface);
  color: var(--text-dim);
}
.lesson-embed--placeholder strong {
  display: block;
  font-family: 'Space Grotesk';
  font-size: .98rem;
  color: var(--text);
  margin-bottom: .3rem;
}
.lesson-embed--placeholder p { font-size: .82rem; line-height: 1.5; max-width: 32rem; }
.lesson-embed--placeholder code {
  background: var(--surface-2);
  padding: .12em .45em;
  border-radius: 6px;
  font-size: .8em;
}

/* ---------- 7d. CLASSROOM GALLERY ---------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}
.gallery__item {
  position: relative;
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.gallery__item img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform .6s var(--ease);
}
.gallery__item:hover img { transform: scale(1.06); }
.gallery__item figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 1.4rem 1.1rem .9rem;
  font-size: .9rem;
  font-weight: 500;
  color: #fff;
  background: linear-gradient(transparent, rgba(6,9,18,.85));
  transform: translateY(8px);
  opacity: 0;
  transition: opacity .35s var(--ease), transform .35s var(--ease);
}
.gallery__item:hover figcaption,
.gallery__item:focus-within figcaption { opacity: 1; transform: none; }

/* ---------- 8. ANIMATIONS ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

@keyframes ping { 0% { box-shadow: 0 0 0 0 rgba(110,231,255,.55); } 70%,100% { box-shadow: 0 0 0 9px rgba(110,231,255,0); } }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-22px); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes scrollDot { 0% { transform: translateY(0); opacity: 1; } 80% { transform: translateY(14px); opacity: 0; } 100% { opacity: 0; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 9. RESPONSIVE ---------- */
@media (max-width: 960px) {
  .hero__inner, .about__grid, .why__grid, .get__grid { grid-template-columns: 1fr; }
  .why__grid { gap: 2.5rem; }
  .hero__visual { height: 360px; order: -1; }
  .why__visual { max-width: 340px; margin-inline: auto; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .syllabus { grid-template-columns: 1fr; }
  .quotes { grid-template-columns: 1fr; }
  .tools { grid-template-columns: repeat(2, 1fr); }
  .team { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .footer__inner { grid-template-columns: 1fr 1fr; }

  .nav__links {
    position: fixed; inset: 0 0 0 auto;
    width: min(80vw, 320px);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 1.6rem;
    padding: 2rem 2.4rem;
    background: var(--bg-alt);
    border-left: 1px solid var(--border);
    transform: translateX(100%);
    transition: transform .35s var(--ease);
  }
  .nav__links.open { transform: translateX(0); }
  .nav__links a { font-size: 1.15rem; }
  .nav__burger { display: flex; }
}

@media (max-width: 600px) {
  .cards, .stats, .programs, .tools, .team, .gallery, .footer__inner { grid-template-columns: 1fr; }
  .hero { padding-top: 6rem; }
  .hero__actions .btn { flex: 1; justify-content: center; }
  .section { padding: 4rem 0; }
  .glass-card--b { right: 0; } .glass-card--c { left: 8%; }
}
