/* =========================================================
   Johnson English – landing page
   Palette lấy từ logo: navy → royal blue, điểm nhấn vàng ấm
   ========================================================= */
:root {
  --navy-950: #080b2e;
  --navy-900: #0e1240;
  --navy: #1b2070;
  --blue: #2f3db8;
  --blue-500: #4a5bdc;
  --sky: #8fa4ff;
  --gold: #ffc533;
  --gold-600: #f0a500;
  --coral: #ff5a5f;
  --cream: #fbf8f2;
  --paper: #ffffff;
  --ink: #12142b;
  --muted: #5d6280;
  --line: #e7e4f0;
  --radius: 22px;
  --shadow: 0 20px 50px -20px rgba(14, 18, 64, .35);
  --shadow-lg: 0 40px 80px -30px rgba(14, 18, 64, .55);
  --ease: cubic-bezier(.2, .8, .2, 1);
  --font: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Lora", Georgia, serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, video { display: block; max-width: 100%; }
main { overflow-x: clip; }
a { color: inherit; }
h1, h2, h3, h4 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.02em; }
p { margin: 0 0 1em; }
.container { width: min(1200px, 100% - 32px); margin-inline: auto; }
.center { text-align: center; }

/* ---------- reusable ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: .5em;
  font-size: .8rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 1rem;
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: currentColor; border-radius: 2px; }
.eyebrow--light { color: var(--gold); }
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 0 rgba(255,197,51,.7); animation: ping 2s infinite; }
.eyebrow--light:has(.dot)::before { display: none; }
@keyframes ping { 70% { box-shadow: 0 0 0 12px rgba(255,197,51,0); } 100% { box-shadow: 0 0 0 0 rgba(255,197,51,0); } }

.h2 { font-size: clamp(2rem, 4.2vw, 3.3rem); font-weight: 800; }
.hl { color: var(--gold); }
.hl-blue { color: var(--blue); }
.u { position: relative; white-space: nowrap; z-index: 0; }
.u::after {
  content: ""; position: absolute; left: -2%; right: -2%; bottom: .06em; height: .38em; z-index: -1;
  background: var(--gold); border-radius: 6px; transform: scaleX(0); transform-origin: left;
  transition: transform .9s .3s var(--ease); opacity: .85;
}
.is-in .u::after, .u.is-in::after { transform: scaleX(1); }

.section { padding: clamp(72px, 10vw, 130px) 0; position: relative; }
.section__head { max-width: 760px; margin: 0 auto clamp(40px, 6vw, 64px); text-align: center; }
.section__sub { color: var(--muted); font-size: 1.08rem; }

.btn {
  --bg: var(--blue); --fg: #fff;
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: .85em 1.5em; border-radius: 999px; border: 0; cursor: pointer;
  font: 700 1rem/1.2 var(--font); text-decoration: none;
  background: var(--bg); color: var(--fg);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), background .3s;
  will-change: transform;
}
.btn:hover { transform: translateY(-3px); box-shadow: 0 14px 30px -10px rgba(0,0,0,.4); }
.btn:active { transform: translateY(0) scale(.98); }
.btn--sm { padding: .6em 1.15em; font-size: .9rem; }
.btn--lg { padding: 1.05em 1.8em; font-size: 1.05rem; }
.btn--block { width: 100%; }
.btn--primary { --bg: linear-gradient(135deg, var(--blue), var(--navy)); }
.btn--gold { --bg: linear-gradient(135deg, #ffd65c, var(--gold-600)); --fg: var(--navy-900); }
.btn--gold:hover { box-shadow: 0 14px 34px -8px rgba(255, 180, 0, .6); }
.btn--ghost { --bg: rgba(255,255,255,.1); --fg: #fff; border: 1.5px solid rgba(255,255,255,.4); backdrop-filter: blur(8px); }
.btn--ghost-dark { --bg: #fff; --fg: var(--navy); border: 1.5px solid var(--line); }
.btn .arr { font-style: normal; transition: transform .3s var(--ease); }
.btn:hover .arr { transform: translateX(5px); }

.chip { display: inline-block; padding: .3em .85em; border-radius: 999px; font-size: .8rem; font-weight: 700; background: #eef0ff; color: var(--blue); }
.chip--gold { background: #fff3cf; color: #9a6500; }

.ticks { list-style: none; padding: 0; margin: 0 0 1.4em; display: grid; gap: .7em; }
.ticks li { position: relative; padding-left: 1.9em; }
.ticks li::before {
  content: "✓"; position: absolute; left: 0; top: .15em; width: 1.3em; height: 1.3em; border-radius: 50%;
  display: grid; place-items: center; font-size: .75em; font-weight: 900; background: var(--gold); color: var(--navy-900);
}
.link-arrow { font-weight: 700; color: var(--blue); text-decoration: none; border-bottom: 2px solid currentColor; padding-bottom: 2px; }
.link-arrow:hover { color: var(--navy); }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity .9s var(--ease), transform .9s var(--ease); transition-delay: var(--d, 0s); }
.reveal.is-in { opacity: 1; transform: none; }

/* scroll progress */
.scroll-progress { position: fixed; inset: 0 0 auto; height: 3px; z-index: 100; background: linear-gradient(90deg, var(--gold), var(--coral)); transform-origin: left; transform: scaleX(0); }

/* ---------- NAV ---------- */
.nav {
  position: fixed; inset: 0 0 auto; z-index: 50;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px max(16px, calc((100% - 1200px) / 2));
  transition: background .4s, box-shadow .4s, padding .4s;
  color: #fff;
}
.nav.is-scrolled { background: rgba(14, 18, 64, .86); backdrop-filter: blur(14px); box-shadow: 0 10px 30px -15px rgba(0,0,0,.5); padding-block: 8px; }
.nav__brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: inherit; }
.nav__brand img { border-radius: 12px; box-shadow: 0 6px 18px -6px rgba(0,0,0,.5); }
.nav__brand span { font-weight: 600; letter-spacing: .04em; line-height: 1.1; font-size: 1.02rem; }
.nav__brand b { font-weight: 900; }
.nav__brand small { display: block; font-family: var(--serif); font-style: italic; font-size: .78rem; letter-spacing: 0; opacity: .8; font-weight: 500; }
.nav__links { display: flex; align-items: center; gap: 4px; }
.nav__links a:not(.btn) { text-decoration: none; font-weight: 600; font-size: .93rem; padding: .5em .8em; border-radius: 999px; transition: background .25s; }
.nav__links a:not(.btn):hover, .nav__links a.is-active { background: rgba(255,255,255,.14); }
.nav__links .btn { margin-left: 8px; }
.nav__toggle { display: none; background: none; border: 0; width: 44px; height: 44px; cursor: pointer; padding: 10px; }
.nav__toggle span { display: block; height: 2px; background: #fff; margin: 5px 0; border-radius: 2px; transition: transform .3s, opacity .3s; }
.nav.is-open .nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.is-open .nav__toggle span:nth-child(2) { opacity: 0; }
.nav.is-open .nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- HERO ---------- */
.hero {
  position: relative; min-height: 100svh; color: #fff; overflow: hidden;
  display: flex; flex-direction: column; justify-content: center; padding: 120px 0 40px;
  background: var(--navy-900);
}
.hero__video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transform: scale(1.08); }
.hero__shade {
  position: absolute; inset: 0;
  background:
    radial-gradient(1200px 600px at 15% 40%, rgba(14,18,64,.55), transparent 70%),
    linear-gradient(100deg, rgba(8,11,46,.95) 0%, rgba(27,32,112,.82) 45%, rgba(47,61,184,.45) 100%);
}
.hero__glow {
  position: absolute; width: 560px; height: 560px; border-radius: 50%; pointer-events: none;
  left: var(--mx, 70%); top: var(--my, 40%); transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(255,197,51,.22), transparent 65%);
  transition: left .6s var(--ease), top .6s var(--ease);
}
.hero__inner { position: relative; display: grid; grid-template-columns: 1.25fr .75fr; gap: 40px; align-items: center; }
.hero__title { font-size: clamp(2.6rem, 6.4vw, 5.4rem); font-weight: 900; line-height: 1.04; margin-bottom: .45em; }
.hero__title .line { display: block; overflow: hidden; padding: .1em 0 .16em; margin-bottom: -.18em; }
.hero__title .line > span { display: inline-block; transform: translateY(110%); animation: rise 1.1s var(--ease) forwards; }
.hero__title .line:nth-child(2) > span { animation-delay: .12s; }
.hero__title .line:nth-child(3) > span { animation-delay: .24s; }
@keyframes rise { to { transform: none; } }
.hero__lead { font-size: clamp(1.05rem, 1.5vw, 1.25rem); max-width: 560px; opacity: 0; animation: fade 1s .6s forwards; color: #dfe3ff; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; opacity: 0; animation: fade 1s .8s forwards; }
@keyframes fade { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

.hero__cards { position: relative; height: 420px; }
.float-card {
  position: absolute; display: flex; align-items: center; gap: 14px;
  padding: 14px 20px 14px 14px; border-radius: 20px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.25);
  backdrop-filter: blur(14px); box-shadow: var(--shadow-lg);
  opacity: 0; animation: pop .9s var(--ease) forwards, bob 6s ease-in-out infinite;
}
.float-card b {
  display: grid; place-items: center; width: 64px; height: 64px; border-radius: 16px;
  font-size: 1.7rem; font-weight: 900; color: var(--navy-900);
  background: linear-gradient(135deg, #ffe08a, var(--gold-600));
}
.float-card span { font-weight: 700; line-height: 1.3; }
.float-card em { font-style: normal; font-weight: 500; font-size: .85rem; opacity: .8; }
.fc-1 { top: 0; right: 0; animation-delay: .9s, 1.8s; }
.fc-2 { top: 150px; left: 0; animation-delay: 1.1s, 2.4s; }
.fc-3 { top: 300px; right: 10%; animation-delay: 1.3s, 3s; }
@keyframes pop { from { opacity: 0; transform: translateY(30px) scale(.9); } to { opacity: 1; transform: none; } }
@keyframes bob { 50% { translate: 0 -12px; } }

.hero__stats {
  position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 56px;
  border-radius: var(--radius); overflow: hidden; background: rgba(255,255,255,.15);
  backdrop-filter: blur(12px); border: 1px solid rgba(255,255,255,.18);
  opacity: 0; animation: fade 1s 1s forwards;
}
.stat { padding: 22px 24px; background: rgba(8,11,46,.35); }
.stat b { display: block; font-size: clamp(1.8rem, 3.2vw, 2.6rem); font-weight: 900; color: var(--gold); line-height: 1.1; }
.stat span { font-size: .92rem; color: #cfd5ff; }
.hero__scroll { position: absolute; left: 50%; bottom: 18px; width: 26px; height: 42px; border: 2px solid rgba(255,255,255,.5); border-radius: 20px; translate: -50% 0; }
.hero__scroll span { position: absolute; left: 50%; top: 8px; width: 4px; height: 8px; border-radius: 2px; background: #fff; translate: -50% 0; animation: wheel 1.8s infinite; }
@keyframes wheel { 60% { transform: translateY(12px); opacity: 0; } }

/* ---------- MARQUEE ---------- */
.marquee { background: var(--gold); color: var(--navy-900); overflow: hidden; padding: 16px 0; transform: rotate(-1.2deg); margin: -14px -10px 0; position: relative; z-index: 2; box-shadow: 0 12px 30px -15px rgba(0,0,0,.4); }
.marquee__track { display: flex; gap: 28px; width: max-content; animation: marquee 32s linear infinite; font-weight: 800; font-size: 1.15rem; text-transform: uppercase; letter-spacing: .04em; white-space: nowrap; }
.marquee__track i { font-style: normal; color: var(--blue); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- ABOUT ---------- */
.about__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 90px); align-items: center; }
.about__media { position: relative; aspect-ratio: 1 / 1.05; }
.about__img { position: absolute; margin: 0; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
.about__img img { width: 100%; height: 100%; object-fit: cover; }
.about__img--a { inset: 0 18% 30% 0; }
.about__img--b { inset: 34% 0 0 40%; border: 8px solid var(--cream); }
.about__badge {
  position: absolute; left: 4%; bottom: 4%; display: flex; align-items: center; gap: 12px;
  padding: 12px 18px 12px 12px; border-radius: 20px; background: var(--navy); color: #fff; box-shadow: var(--shadow);
  font-family: var(--serif); font-style: italic; line-height: 1.15; animation: bob 7s ease-in-out infinite;
}
.about__badge img { width: 54px; border-radius: 14px; }
.about__copy p { color: #3a3e5c; font-size: 1.05rem; }
.pillars { list-style: none; padding: 0; margin: 28px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pillars li { display: flex; gap: 12px; align-items: center; padding: 14px; border-radius: 16px; background: #fff; border: 1px solid var(--line); transition: transform .35s var(--ease), box-shadow .35s; }
.pillars li:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.pillars__ico { font-size: 1.5rem; width: 46px; height: 46px; flex: none; display: grid; place-items: center; border-radius: 14px; background: #eef0ff; }
.pillars b { display: block; font-size: .98rem; }
.pillars small { color: var(--muted); }

/* ---------- RESULTS ---------- */
.results { background: radial-gradient(900px 500px at 80% 0%, #2a35a8 0%, transparent 60%), var(--navy-900); color: #fff; overflow: hidden; }
.results .section__sub { color: #c4cbff; }
.results__grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 260px; gap: 18px; }
.rcard { position: relative; margin: 0; border-radius: var(--radius); overflow: hidden; cursor: zoom-in; background: #1e2470; isolation: isolate; }
.rcard > img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.rcard:hover > img { transform: scale(1.07); }
.rcard--tall { grid-row: span 2; }
.rcard--phone { grid-row: span 2; background: linear-gradient(160deg, #2f3db8, #121660); display: grid; place-items: center; padding: 26px 20px 96px; }
.phone { width: min(220px, 80%); height: 100%; border-radius: 28px; overflow: hidden; border: 6px solid #0a0d2c; box-shadow: var(--shadow-lg); transition: transform .8s var(--ease); }
.phone img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.rcard--phone:hover .phone { transform: rotate(-3deg) translateY(-6px); }
.rcard figcaption {
  position: absolute; left: 12px; right: 12px; bottom: 12px; display: flex; align-items: center; gap: 12px;
  padding: 10px 14px 10px 10px; border-radius: 16px; background: rgba(8,11,46,.72); backdrop-filter: blur(10px);
}
.rcard figcaption b { display: grid; place-items: center; min-width: 52px; height: 52px; border-radius: 12px; font-size: 1.35rem; font-weight: 900; color: var(--navy-900); background: var(--gold); }
.rcard figcaption span { font-weight: 700; line-height: 1.25; }
.rcard figcaption small { display: block; font-weight: 500; opacity: .75; font-size: .82rem; }

/* ---------- STORY ---------- */
.story { background: linear-gradient(180deg, #eef0ff, var(--cream)); }
.story__grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(36px, 6vw, 80px); align-items: center; }
.vplayer { position: relative; border-radius: 28px; overflow: hidden; box-shadow: var(--shadow-lg); aspect-ratio: 9 / 16; max-height: 640px; margin-inline: auto; background: #000; }
.vplayer video { width: 100%; height: 100%; object-fit: cover; }
.vplayer__play {
  position: absolute; inset: 0; margin: auto; width: 92px; height: 92px; border-radius: 50%; border: 0; cursor: pointer;
  background: var(--gold); color: var(--navy-900); font-size: 2rem; box-shadow: 0 0 0 0 rgba(255,197,51,.6); animation: pulse 2.2s infinite;
  transition: transform .3s var(--ease), opacity .3s;
}
.vplayer__play span { margin-left: 6px; }
.vplayer__play:hover { transform: scale(1.08); }
.vplayer.is-playing .vplayer__play { opacity: 0; pointer-events: none; }
@keyframes pulse { 70% { box-shadow: 0 0 0 26px rgba(255,197,51,0); } 100% { box-shadow: 0 0 0 0 rgba(255,197,51,0); } }
.vplayer__tag { position: absolute; top: 16px; left: 16px; padding: 6px 12px; border-radius: 999px; background: rgba(0,0,0,.55); color: #fff; font-size: .85rem; font-weight: 600; backdrop-filter: blur(6px); }
.story__copy p { font-size: 1.08rem; color: #3a3e5c; }
.story__thumbs { display: flex; gap: 14px; margin: 26px 0 30px; }
.story__thumbs img { width: 31%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: 16px; cursor: zoom-in; box-shadow: var(--shadow); transition: transform .5s var(--ease); }
.story__thumbs img:nth-child(1) { rotate: -3deg; }
.story__thumbs img:nth-child(3) { rotate: 3deg; }
.story__thumbs img:hover { transform: translateY(-8px) scale(1.04); rotate: 0deg; }

/* ---------- TEACHERS ---------- */
.lead-teacher {
  display: grid; grid-template-columns: 380px 1fr; gap: clamp(28px, 5vw, 64px); align-items: center;
  padding: clamp(22px, 4vw, 44px); border-radius: 32px; margin-bottom: 40px;
  background: linear-gradient(135deg, var(--navy) 0%, var(--blue) 100%); color: #fff; box-shadow: var(--shadow-lg); position: relative; overflow: hidden;
}
.lead-teacher::after { content: ""; position: absolute; right: -120px; bottom: -160px; width: 460px; height: 460px; border-radius: 50%; border: 70px solid rgba(255,255,255,.05); pointer-events: none; }
.lead-teacher__img { position: relative; border-radius: 24px; overflow: hidden; aspect-ratio: 4 / 5; background: #e9e9ee; }
.lead-teacher__img img { width: 100%; height: 100%; object-fit: cover; }
.lead-teacher h3 { font-size: clamp(1.8rem, 3vw, 2.6rem); margin-top: 14px; }
.lead-teacher__role { color: #c9d0ff; font-weight: 600; }
.lead-teacher blockquote { font-family: var(--serif); font-style: italic; font-size: clamp(1.4rem, 2.4vw, 2rem); margin: 18px 0 22px; color: var(--gold); }
.lead-teacher .ticks li { color: #e6e9ff; }
.band-badge {
  position: absolute; top: 14px; right: 14px; display: grid; place-items: center; width: 70px; height: 70px; border-radius: 50%;
  background: var(--gold); color: var(--navy-900); font-size: .62rem; font-weight: 800; letter-spacing: .1em; line-height: 1;
  box-shadow: 0 8px 20px -6px rgba(0,0,0,.4); z-index: 2;
}
.band-badge b { font-size: 1.45rem; letter-spacing: 0; margin-top: -10px; }

.tgrid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; margin-bottom: 36px; }
.tcard { perspective: 1200px; aspect-ratio: 3 / 4.3; cursor: pointer; outline: none; }
.tcard__inner { position: relative; width: 100%; height: 100%; transition: transform .9s var(--ease); transform-style: preserve-3d; }
.tcard:hover .tcard__inner, .tcard:focus-visible .tcard__inner, .tcard.is-flipped .tcard__inner { transform: rotateY(180deg); }
.tcard__front, .tcard__back { position: absolute; inset: 0; border-radius: var(--radius); overflow: hidden; backface-visibility: hidden; box-shadow: var(--shadow); }
.tcard__front img { width: 100%; height: 100%; object-fit: cover; }
.tcard__front img.small-src { image-rendering: auto; filter: saturate(1.05); }
.tcard__front::after { content: ""; position: absolute; inset: 45% 0 0; background: linear-gradient(transparent, rgba(8,11,46,.92)); }
.tcard__name { position: absolute; left: 16px; right: 16px; bottom: 14px; z-index: 1; color: #fff; line-height: 1.25; }
.tcard__name b { display: block; font-size: 1.08rem; }
.tcard__name small { opacity: .8; }
.tcard .band-badge { width: 58px; height: 58px; font-size: .55rem; }
.tcard .band-badge b { font-size: 1.2rem; margin-top: -8px; }
.tcard__back { transform: rotateY(180deg); background: linear-gradient(160deg, var(--blue), var(--navy-900)); color: #fff; padding: 22px 18px; display: flex; flex-direction: column; justify-content: center; }
.tcard__back .q { font-family: var(--serif); font-style: italic; font-size: 1.02rem; line-height: 1.5; color: #fff; }
.tcard__back .q::before { content: "“"; display: block; font-size: 3.4rem; line-height: .6; color: var(--gold); font-style: normal; }
.tcard__back ul { margin: 0; padding-left: 1.1em; font-size: .85rem; color: #cfd5ff; display: grid; gap: 4px; }

/* ---------- COURSES ---------- */
.courses { background: #fff; }
.finder { max-width: 860px; margin: 0 auto 48px; padding: 28px clamp(20px, 4vw, 40px); border-radius: 28px; background: var(--cream); border: 1px solid var(--line); }
.finder__q label { display: block; font-weight: 700; font-size: 1.1rem; margin-bottom: 14px; text-align: center; }
.finder__range { display: flex; align-items: center; gap: 18px; }
.finder__range output { min-width: 72px; padding: 8px 0; border-radius: 14px; text-align: center; font-weight: 900; font-size: 1.4rem; background: var(--navy); color: var(--gold); }
input[type=range] { -webkit-appearance: none; appearance: none; flex: 1; height: 10px; border-radius: 10px; background: linear-gradient(90deg, var(--blue) var(--p, 60%), #dfe2f5 var(--p, 60%)); outline: none; }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 30px; height: 30px; border-radius: 50%; background: var(--gold); border: 5px solid #fff; box-shadow: 0 4px 14px rgba(0,0,0,.25); cursor: grab; }
input[type=range]::-moz-range-thumb { width: 22px; height: 22px; border-radius: 50%; background: var(--gold); border: 5px solid #fff; box-shadow: 0 4px 14px rgba(0,0,0,.25); cursor: grab; }
.finder__scale { display: flex; justify-content: space-between; font-size: .8rem; color: var(--muted); margin: 6px 90px 0 0; }
.finder__road { margin: 30px 0 10px; padding: 0 10px; }
.road { position: relative; height: 8px; border-radius: 8px; background: repeating-linear-gradient(90deg, #d7dbf2 0 14px, transparent 14px 22px); }
.road__fill { position: absolute; inset: 0 auto 0 0; width: 0; border-radius: 8px; background: linear-gradient(90deg, var(--sky), var(--blue), var(--gold)); transition: width .7s var(--ease); }
.road__me { position: absolute; top: -40px; left: 0; translate: -50% 0; padding: 4px 10px; border-radius: 10px; font-size: .78rem; font-weight: 800; background: var(--navy); color: #fff; transition: left .7s var(--ease); white-space: nowrap; }
.road__me::after { content: ""; position: absolute; left: 50%; bottom: -5px; border: 6px solid transparent; border-bottom: 0; border-top-color: var(--navy); translate: -50% 0; }
.road__stop { position: absolute; top: 18px; translate: -50% 0; font-weight: 800; font-size: .85rem; color: var(--muted); }
.road__stop::before { content: ""; position: absolute; left: 50%; top: -22px; width: 16px; height: 16px; border-radius: 50%; translate: -50% 0; background: #fff; border: 3px solid #c9cdea; transition: .4s; }
.road__stop.is-hit { color: var(--blue); }
.road__stop.is-hit::before { border-color: var(--gold); background: var(--gold); }
.finder__ans { text-align: center; margin: 40px 0 0; font-size: 1.05rem; }

.ccards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.ccard {
  position: relative; padding: 30px 26px; border-radius: 28px; background: var(--cream); border: 2px solid transparent;
  display: flex; flex-direction: column; transition: transform .45s var(--ease), box-shadow .45s, border-color .45s, background .45s;
}
.ccard .ticks { flex: 1; color: #3a3e5c; }
.ccard:hover { transform: translateY(-10px); box-shadow: var(--shadow-lg); }
.ccard.is-match { border-color: var(--gold); background: #fffaf0; box-shadow: 0 0 0 6px rgba(255,197,51,.25), var(--shadow-lg); transform: translateY(-10px); }
.ccard__top { display: flex; align-items: center; gap: 16px; margin-bottom: 22px; }
.ccard__top h3 { font-size: 1.6rem; margin-bottom: 4px; }
.ccard__num { display: grid; place-items: center; width: 72px; height: 72px; flex: none; border-radius: 22px; font-size: 2.4rem; font-weight: 900; color: #fff; background: linear-gradient(135deg, var(--blue-500), var(--navy)); }
.ccard--star { background: linear-gradient(160deg, var(--navy), var(--navy-900)); color: #fff; }
.ccard--star .ticks { color: #dfe3ff; }
.ccard--star .ccard__num { background: linear-gradient(135deg, #ffe08a, var(--gold-600)); color: var(--navy-900); }
.ccard--star.is-match { background: linear-gradient(160deg, var(--navy), var(--navy-900)); }
.ccard__ribbon { position: absolute; top: 18px; right: -8px; padding: 6px 14px; background: var(--coral); color: #fff; font-weight: 800; font-size: .8rem; border-radius: 8px 0 0 8px; box-shadow: 0 6px 16px -6px var(--coral); }
.ccard__ribbon::after { content: ""; position: absolute; right: 0; bottom: -8px; border: 4px solid #b3343a; border-right-color: transparent; border-bottom-color: transparent; }

/* ---------- MOMENTS ---------- */
.moments { background: var(--navy-950); color: #fff; overflow: hidden; }
.moments .section__sub { color: #b9c0f5; }
.reels { display: flex; gap: 18px; overflow-x: auto; padding: 10px max(16px, calc((100% - 1200px) / 2)) 30px; scroll-snap-type: x mandatory; scrollbar-width: none; cursor: grab; }
.reels::-webkit-scrollbar { display: none; }
.reels.is-drag { cursor: grabbing; scroll-snap-type: none; }
.reel { position: relative; flex: none; width: clamp(200px, 22vw, 270px); aspect-ratio: 9 / 16; border-radius: 24px; overflow: hidden; scroll-snap-align: center; background: #1a1f5c; box-shadow: var(--shadow-lg); transition: transform .5s var(--ease); }
.reel:nth-child(even) { transform: translateY(28px); }
.reel:hover { transform: translateY(-6px) scale(1.02); }
.reel video { width: 100%; height: 100%; object-fit: cover; pointer-events: none; }
.reel::after { content: ""; position: absolute; inset: 55% 0 0; background: linear-gradient(transparent, rgba(0,0,0,.75)); pointer-events: none; }
.reel__cap { position: absolute; left: 16px; right: 16px; bottom: 16px; z-index: 1; font-weight: 700; }
.reel__snd { position: absolute; top: 12px; right: 12px; z-index: 1; width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; background: rgba(0,0,0,.45); backdrop-filter: blur(6px); font-size: .95rem; }

.gallery-tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin: 60px 0 30px; }
.gtab { padding: .65em 1.3em; border-radius: 999px; border: 1.5px solid rgba(255,255,255,.25); background: transparent; color: #fff; font: 600 .95rem var(--font); cursor: pointer; transition: .3s; }
.gtab:hover { border-color: var(--gold); }
.gtab.is-active { background: var(--gold); color: var(--navy-900); border-color: var(--gold); }
.gallery { columns: 4 240px; column-gap: 16px; }
.gallery figure { margin: 0 0 16px; border-radius: 18px; overflow: hidden; break-inside: avoid; cursor: zoom-in; position: relative; transition: opacity .45s, transform .45s var(--ease); }
.gallery figure img { width: 100%; transition: transform 1s var(--ease), filter .5s; }
.gallery figure:hover img { transform: scale(1.06); }
.gallery figure.is-hidden { display: none; }

/* ---------- VOICES ---------- */
.voices { background: var(--cream); overflow: hidden; }
.slider { max-width: 980px; margin-inline: auto; }
.slider__track { display: grid; }
.voice {
  grid-area: 1 / 1; position: relative; padding: clamp(28px, 5vw, 56px); border-radius: 32px; background: #fff; box-shadow: var(--shadow);
  opacity: 0; transform: translateX(40px) scale(.97); pointer-events: none; transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.voice.is-active { opacity: 1; transform: none; pointer-events: auto; }
.voice blockquote { font-family: var(--serif); font-style: italic; font-size: clamp(1.1rem, 1.9vw, 1.4rem); line-height: 1.6; margin: 0 0 28px; color: #2a2d4a; }
.voice blockquote::before { content: "“"; display: block; font-size: 5rem; line-height: .5; color: var(--gold); margin: 10px 0 10px; font-style: normal; }
.voice blockquote b { font-family: var(--font); font-style: normal; color: var(--blue); }
.voice__score { position: absolute; top: -22px; right: 32px; width: 84px; height: 84px; border-radius: 50%; display: grid; place-items: center; font-size: 1.8rem; font-weight: 900; background: linear-gradient(135deg, #ffe08a, var(--gold-600)); color: var(--navy-900); box-shadow: 0 14px 30px -10px rgba(240,165,0,.7); }
.voice footer { display: flex; align-items: center; gap: 14px; }
.voice footer small { display: block; color: var(--muted); }
.voice footer a { color: var(--blue); font-weight: 600; }
.avatar { width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; color: #fff; background: linear-gradient(135deg, var(--blue-500), var(--navy)); flex: none; }
.voice--photo { display: grid; grid-template-columns: 240px 1fr; gap: 36px; align-items: center; }
.voice--photo > img { border-radius: 22px; aspect-ratio: 3/4; object-fit: cover; box-shadow: var(--shadow); rotate: -2deg; }
.voice--photo .voice__score { position: static; margin-bottom: 8px; width: 64px; height: 64px; font-size: 1.4rem; }
.slider__nav { display: flex; align-items: center; justify-content: center; gap: 18px; margin-top: 30px; }
.slider__btn { width: 50px; height: 50px; border-radius: 50%; border: 1.5px solid var(--line); background: #fff; font-size: 1.2rem; cursor: pointer; transition: .3s; }
.slider__btn:hover { background: var(--navy); color: #fff; border-color: var(--navy); }
.slider__dots { display: flex; gap: 8px; }
.slider__dots button { width: 10px; height: 10px; border-radius: 10px; border: 0; padding: 0; background: #cfd3ea; cursor: pointer; transition: width .4s var(--ease), background .4s; }
.slider__dots button.is-active { width: 34px; background: var(--blue); }

/* ---------- OFFER ---------- */
.offer { background: radial-gradient(800px 500px at 0% 100%, rgba(255,90,95,.25), transparent 60%), radial-gradient(900px 600px at 100% 0%, #3443c4, transparent 60%), var(--navy); color: #fff; overflow: hidden; }
.offer__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(36px, 6vw, 80px); align-items: center; }
.big25 { display: inline-block; padding: 0 .2em; border-radius: 14px; background: var(--coral); color: #fff; rotate: -3deg; animation: wobble 3s ease-in-out infinite; }
@keyframes wobble { 50% { rotate: 3deg; scale: 1.06; } }
.countdown { display: flex; gap: 14px; margin: 28px 0 22px; }
.countdown div { width: 96px; padding: 14px 0 10px; border-radius: 20px; text-align: center; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.18); }
.countdown b { display: block; font-size: 2.4rem; font-weight: 900; line-height: 1; font-variant-numeric: tabular-nums; color: var(--gold); }
.countdown span { font-size: .78rem; text-transform: uppercase; letter-spacing: .12em; color: #c3c9f7; }
.seats { max-width: 340px; margin-bottom: 26px; }
.seats__bar { height: 10px; border-radius: 10px; background: rgba(255,255,255,.12); overflow: hidden; margin-bottom: 6px; }
.seats__bar span { display: block; height: 100%; border-radius: 10px; background: linear-gradient(90deg, var(--coral), var(--gold)); animation: shimmer 2.4s linear infinite; background-size: 200% 100%; }
@keyframes shimmer { to { background-position: -200% 0; } }
.seats small { color: #c3c9f7; }
.offer__perks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; font-weight: 600; }

.form { position: relative; background: #fff; color: var(--ink); padding: clamp(26px, 4vw, 42px); border-radius: 30px; box-shadow: 0 40px 90px -30px rgba(0,0,0,.6); overflow: hidden; }
.form h3 { font-size: 1.6rem; margin-bottom: 4px; }
.form__sub { color: var(--muted); }
.form label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: 14px; }
.form input, .form select {
  display: block; width: 100%; margin-top: 6px; padding: .9em 1em; border-radius: 14px; border: 1.5px solid var(--line); background: var(--cream);
  font: 500 1rem var(--font); color: var(--ink); transition: border-color .25s, box-shadow .25s, background .25s;
}
.form input:focus, .form select:focus { outline: none; border-color: var(--blue); background: #fff; box-shadow: 0 0 0 4px rgba(47,61,184,.15); }
.form input.is-invalid { border-color: var(--coral); animation: shake .4s; }
@keyframes shake { 25% { transform: translateX(-6px); } 75% { transform: translateX(6px); } }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form button { margin-top: 6px; }
.form__note { text-align: center; margin: 14px 0 0; color: var(--muted); font-size: .92rem; }
.form__note a { color: var(--blue); font-weight: 700; }
.form__done { position: absolute; inset: 0; background: #fff; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 30px; animation: fade .6s var(--ease); }
.form__done[hidden] { display: none; }
.form__check { width: 84px; height: 84px; border-radius: 50%; display: grid; place-items: center; font-size: 2.6rem; font-weight: 900; color: #fff; background: linear-gradient(135deg, #3ccf7a, #1a9d55); margin-bottom: 18px; animation: pop .7s var(--ease); }

/* ---------- FOOTER ---------- */
.footer { background: var(--navy-950); color: #c7cdf5; padding: 70px 0 110px; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr auto; gap: 40px; align-items: start; }
.nav__brand--light { color: #fff; margin-bottom: 16px; }
.footer h4 { color: #fff; font-size: 1.05rem; }
.footer p { margin-bottom: .6em; }
.footer a { color: #fff; }
.footer__desc { max-width: 380px; }
.footer__qr { text-align: center; }
.footer__qr img { width: 150px; border-radius: 16px; background: #fff; padding: 6px; transition: transform .4s var(--ease); }
.footer__qr img:hover { transform: scale(1.6) rotate(-2deg); }
.footer__copy { text-align: center; margin: 50px 0 0; font-size: .85rem; opacity: .6; }

/* ---------- floating + mobile cta ---------- */
.fab { position: fixed; right: 18px; bottom: 22px; z-index: 40; display: grid; gap: 12px; }
.fab__btn { width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; text-decoration: none; color: #fff; font-weight: 800; box-shadow: 0 10px 24px -8px rgba(0,0,0,.45); transition: transform .3s var(--ease); }
.fab__btn:hover { transform: scale(1.1); }
.fab__btn--fb { background: #1877f2; font-size: 1.6rem; font-family: Arial, sans-serif; }
.fab__btn--zalo { background: #0068ff; font-size: .78rem; }
.fab__btn--call { background: var(--coral); font-size: 1.4rem; position: relative; }
.fab__btn--call::before { content: ""; position: absolute; inset: 0; border-radius: 50%; border: 2px solid var(--coral); animation: ring 1.8s infinite; }
@keyframes ring { to { transform: scale(1.7); opacity: 0; } }
.mobile-cta { display: none; }
.mmenu { display: none; }

/* ---------- lightbox ---------- */
.lightbox { position: fixed; inset: 0; z-index: 200; background: rgba(5,7,30,.94); display: flex; align-items: center; justify-content: center; padding: 20px; animation: fade .3s; }
.lightbox[hidden] { display: none; }
.lightbox figure { margin: 0; max-width: min(1100px, 100%); text-align: center; }
.lightbox img { max-height: 82vh; margin: 0 auto; border-radius: 14px; box-shadow: var(--shadow-lg); }
.lightbox figcaption { color: #dfe3ff; margin-top: 14px; }
.lightbox button { position: absolute; background: rgba(255,255,255,.12); color: #fff; border: 0; width: 52px; height: 52px; border-radius: 50%; font-size: 2rem; cursor: pointer; line-height: 1; }
.lightbox button:hover { background: var(--gold); color: var(--navy-900); }
.lightbox__close { top: 18px; right: 18px; }
.lightbox__prev { left: 18px; }
.lightbox__next { right: 18px; }
#confetti { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 300; }

/* ---------- responsive ---------- */
@media (max-width: 1080px) {
  .tgrid { grid-template-columns: repeat(3, 1fr); }
  .results__grid { grid-template-columns: repeat(2, 1fr); }
  .hero__inner { grid-template-columns: 1fr; }
  .hero__cards { display: none; }
}
@media (max-width: 900px) {
  .nav__toggle { display: block; }
  .nav__links { display: none; }
  .mmenu {
    display: flex; flex-direction: column; align-items: center; gap: 10px;
    position: fixed; top: 0; left: 0; right: 0; height: 100vh; height: 100lvh; z-index: 49;
    padding: 90px 16px 40px; overflow-y: auto; overscroll-behavior: contain;
    background: var(--navy-950); color: #fff;
    visibility: hidden; opacity: 0; transition: opacity .3s, visibility 0s .3s;
  }
  /* căn giữa theo chiều dọc nhưng vẫn cuộn được khi màn hình thấp (xoay ngang) */
  .mmenu > :first-child { margin-top: auto; }
  .mmenu > :last-child { margin-bottom: auto; }
  .mmenu a:not(.btn) { color: #fff; text-decoration: none; font-weight: 600; font-size: 1.3rem; padding: .45em 1.1em; border-radius: 999px; }
  .mmenu a.is-active { background: rgba(255,255,255,.14); }
  .mmenu .btn { margin-top: 10px; }
  .menu-open .mmenu { visibility: visible; opacity: 1; transition: opacity .3s; }
  /* phủ nền trang cùng màu để vùng kéo giãn (rubber-band) của iOS không lộ nền sáng */
  html.menu-open, html.menu-open body { background: var(--navy-950); }
  .menu-open .nav { background: var(--navy-950); backdrop-filter: none; -webkit-backdrop-filter: none; box-shadow: none; }
  .nav__brand, .nav__toggle { position: relative; z-index: 2; }
  .about__grid, .story__grid, .offer__grid, .lead-teacher { grid-template-columns: 1fr; }
  .lead-teacher__img { max-width: 360px; }
  .story__video { max-width: 380px; margin-inline: auto; width: 100%; }
  .ccards { grid-template-columns: 1fr; max-width: 520px; margin-inline: auto; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__qr { grid-column: 1 / -1; }
  .voice--photo { grid-template-columns: 1fr; }
  .voice--photo > img { max-width: 220px; }
}
@media (max-width: 640px) {
  .tgrid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .tcard__back { padding: 16px 12px; }
  .tcard__back .q { font-size: .88rem; }
  .tcard__back ul { display: none; }
  .results__grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 200px; gap: 12px; }
  .rcard--tall { grid-column: span 2; grid-row: span 2; }
  .rcard figcaption { left: 8px; right: 8px; bottom: 8px; padding: 6px 10px 6px 6px; gap: 8px; }
  .rcard figcaption b { min-width: 40px; height: 40px; font-size: 1.05rem; }
  .rcard figcaption span { font-size: .85rem; }
  .rcard figcaption small { display: none; }
  .rcard--phone { padding: 16px 12px 70px; }
  .pillars { grid-template-columns: 1fr; }
  .countdown div { width: 80px; }
  .form__row { grid-template-columns: 1fr; gap: 0; }
  .finder__scale { margin-right: 90px; }
  .fab { display: none; }
  .mobile-cta {
    display: grid; grid-template-columns: 1fr 1.4fr; gap: 10px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); background: rgba(255,255,255,.95); backdrop-filter: blur(10px); box-shadow: 0 -10px 30px -15px rgba(0,0,0,.3);
  }
  .mobile-cta .btn { padding: .85em .5em; }
  .footer__grid { grid-template-columns: 1fr; }
  .hero__stats .stat { padding: 16px; }
  .reel:nth-child(even) { transform: none; }
  .lightbox__prev, .lightbox__next { top: auto; bottom: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}