/* Capivara a Jato: shared styles (dark, modern) */
:root {
  --bg: #060816;
  --bg-2: #0b1024;
  --surface: rgba(255, 255, 255, 0.045);
  --surface-2: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.09);
  --border-2: rgba(255, 255, 255, 0.16);
  --text: #eef1fb;
  --muted: #98a2c3;
  --yellow: #ffc933;
  --yellow-2: #ffe08a;
  --blue: #5b8cff;
  --cyan: #45d1ff;
  --ok: #34d399;
  --bad: #f87171;
  --radius: 22px;
  /* aliases used by page markup */
  --navy: #ffffff;
  --line: var(--border);
  --sky-3: rgba(255, 255, 255, 0.06);
  --ink: var(--text);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; color: var(--text); background: var(--bg);
  font-family: 'Inter', system-ui, -apple-system, sans-serif; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: ''; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(800px 500px at 85% -10%, rgba(91, 140, 255, 0.22), transparent 60%),
    radial-gradient(700px 500px at -10% 20%, rgba(255, 201, 51, 0.12), transparent 60%),
    radial-gradient(900px 600px at 50% 120%, rgba(69, 209, 255, 0.12), transparent 60%);
}
h1, h2, h3, .display { font-family: 'Space Grotesk', 'Inter', sans-serif; letter-spacing: -0.02em; }
img { max-width: 100%; display: block; }
a { color: var(--yellow); }
.wrap { width: min(1180px, 100% - 32px); margin: 0 auto; }
::selection { background: var(--yellow); color: #111; }

/* ---------- floating nav ---------- */
.nav { position: sticky; top: 14px; z-index: 30; margin-top: 14px; }
.nav .wrap {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; height: 60px; padding: 0 10px 0 14px;
  background: rgba(10, 14, 32, 0.66); border: 1px solid var(--border); border-radius: 999px;
  backdrop-filter: blur(16px) saturate(140%); -webkit-backdrop-filter: blur(16px) saturate(140%);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: #fff; font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 17px; }
.brand img { width: 36px; height: 36px; border-radius: 50%; box-shadow: 0 0 0 2px var(--yellow); }
.nav ul { display: flex; gap: 2px; list-style: none; margin: 0; padding: 0; align-items: center; }
.nav ul a { display: block; padding: 9px 14px; border-radius: 999px; text-decoration: none; color: var(--muted); font-weight: 600; font-size: 14px; transition: color .2s, background .2s; }
.nav ul a:hover { color: #fff; background: var(--surface-2); }
.nav ul a.on { color: #111; background: var(--yellow); }
.menu-btn { display: none; background: var(--surface-2); border: 1px solid var(--border); border-radius: 999px; padding: 8px 14px; font: inherit; font-weight: 600; color: #fff; cursor: pointer; }
@media (max-width: 820px) {
  .menu-btn { display: block; }
  .nav ul { display: none; position: absolute; top: 70px; left: 16px; right: 16px; flex-direction: column; align-items: stretch; padding: 10px; background: rgba(10, 14, 32, 0.95); border: 1px solid var(--border); border-radius: 22px; backdrop-filter: blur(16px); }
  .nav.open ul { display: flex; }
  .nav ul a { padding: 12px 16px; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 14px 22px; border-radius: 999px;
  font-weight: 700; font-size: 15px; text-decoration: none; border: 1px solid transparent; cursor: pointer; font-family: inherit;
  transition: transform .2s, box-shadow .2s, background .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn svg { width: 20px; height: 20px; flex: none; }
.btn-primary { background: linear-gradient(135deg, var(--yellow), #ffb000); color: #111; box-shadow: 0 10px 30px rgba(255, 190, 0, 0.35); }
.btn-primary:hover { box-shadow: 0 14px 40px rgba(255, 190, 0, 0.5); }
.btn-dark, .btn-ghost { background: var(--surface-2); color: #fff; border-color: var(--border-2); }
.btn-dark:hover, .btn-ghost:hover { background: rgba(255,255,255,.14); }
.btn-yt { background: #ff0033; color: #fff; }
.btn-ig { background: linear-gradient(45deg, #f9a825, #e91e63 55%, #7b1fa2); color: #fff; }

/* ---------- hero ---------- */
.hero { position: relative; padding: 80px 0 60px; overflow: hidden; }
.hero-grid {
  position: absolute; inset: -80px 0 0; z-index: -1; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 60% 40%, #000 20%, transparent 75%);
  mask-image: radial-gradient(ellipse 70% 60% at 60% 40%, #000 20%, transparent 75%);
}
.hero .wrap { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 48px; align-items: center; min-height: min(78vh, 720px); }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; padding: 7px 14px 7px 8px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); color: var(--muted); font-size: 13px; font-weight: 600; margin-bottom: 26px; }
.eyebrow i { display: inline-block; font-style: normal; padding: 3px 9px; border-radius: 999px; background: rgba(52, 211, 153, 0.16); color: var(--ok); font-weight: 700; font-size: 11px; letter-spacing: .06em; text-transform: uppercase; }
.hero h1 { font-size: clamp(46px, 7.4vw, 92px); line-height: 0.98; margin: 0 0 24px; font-weight: 700; letter-spacing: -0.04em; }
.grad { background: linear-gradient(100deg, var(--yellow) 0%, #ffe08a 40%, var(--cyan) 100%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { font-size: clamp(17px, 1.6vw, 20px); color: var(--muted); max-width: 560px; margin: 0 0 34px; }
.hero .ctas { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-visual { position: relative; justify-self: center; width: min(440px, 100%); aspect-ratio: 1; }
.orb {
  position: absolute; inset: 8%; border-radius: 50%; padding: 6px;
  background: conic-gradient(from 0deg, var(--yellow), var(--cyan), var(--blue), var(--yellow)); animation: spin 10s linear infinite;
  box-shadow: 0 0 80px rgba(69, 209, 255, 0.25), 0 0 140px rgba(255, 201, 51, 0.18);
}
.orb::after { content: ''; position: absolute; inset: 6px; border-radius: 50%; background: var(--bg); }
.hero-visual > img { position: absolute; inset: calc(8% + 10px); width: calc(84% - 20px); height: calc(84% - 20px); border-radius: 50%; object-fit: cover; z-index: 1; animation: bob 6s ease-in-out infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.float {
  position: absolute; z-index: 2; display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 16px;
  background: rgba(12, 16, 36, 0.78); border: 1px solid var(--border-2); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4); font-size: 13px; white-space: nowrap; animation: bob 7s ease-in-out infinite;
}
.float small { display: block; color: var(--muted); font-size: 11px; }
.float b { font-family: 'Space Grotesk', sans-serif; }
.float .dots { display: flex; gap: 4px; }
.float .dots span { width: 10px; height: 10px; border-radius: 50%; background: #ff4d3d; box-shadow: 0 0 8px #ff4d3d; }
.float .dots span.w { background: #fff6e0; box-shadow: 0 0 8px #fff; }
.f1 { top: 6%; left: -14%; animation-delay: -1s; }
.f2 { bottom: 12%; left: -10%; animation-delay: -3s; }
.f3 { top: 40%; right: -12%; animation-delay: -5s; }
.flightpath { position: absolute; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.flightpath svg { position: absolute; width: 100%; height: 100%; }
.flightpath .plane { position: absolute; top: 0; left: 0; font-size: 22px; offset-path: path('M -40 520 C 300 380, 600 640, 900 360 S 1400 220, 1700 300'); offset-rotate: auto; animation: fly 14s linear infinite; filter: drop-shadow(0 0 8px rgba(255,201,51,.7)); }
@keyframes fly { from { offset-distance: 0%; } to { offset-distance: 100%; } }
@media (max-width: 900px) {
  .hero { padding: 48px 0 30px; }
  .hero .wrap { grid-template-columns: 1fr; text-align: center; min-height: 0; }
  .hero p.lead { margin-inline: auto; }
  .hero .ctas { justify-content: center; }
  .hero-visual { width: min(340px, 86%); }
  .f1 { left: -6%; } .f2 { left: -4%; } .f3 { right: -6%; }
  .flightpath { display: none; }
}
@media (prefers-reduced-motion: reduce) { .orb, .hero-visual > img, .float, .flightpath .plane, .marquee-track { animation: none !important; } }

/* marquee */
.marquee { -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); overflow: hidden; border-block: 1px solid var(--border); background: rgba(255,255,255,.02); padding: 16px 0; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee-track { display: flex; gap: 40px; width: max-content; animation: marquee 40s linear infinite; }
.marquee-track span { font-family: 'Space Grotesk', sans-serif; font-size: 18px; color: var(--muted); white-space: nowrap; display: flex; align-items: center; gap: 40px; }
.marquee-track span::after { content: '✦'; color: var(--yellow); font-size: 12px; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- sections ---------- */
section { padding: 96px 0; }
.section-head { max-width: 760px; margin-bottom: 44px; }
.section-head.center { margin-inline: auto; text-align: center; }
.kicker { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--yellow); }
.kicker::before { content: ''; width: 18px; height: 2px; background: var(--yellow); border-radius: 2px; }
h2 { font-size: clamp(32px, 4.6vw, 54px); line-height: 1.05; margin: 14px 0 14px; color: #fff; font-weight: 700; }
h3 { color: #fff; margin: 0 0 8px; line-height: 1.25; font-size: 19px; font-weight: 600; }
.section-head p { color: var(--muted); font-size: 18px; margin: 0; }
.alt { background: linear-gradient(180deg, transparent, rgba(255,255,255,.025) 20%, rgba(255,255,255,.025) 80%, transparent); }
.grid { display: grid; gap: 18px; }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) { .g3, .g4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .g3, .g2, .g4 { grid-template-columns: 1fr; } section { padding: 64px 0; } }
.card {
  position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px;
  transition: border-color .25s, transform .25s, background .25s;
}
.card p { color: var(--muted); margin: 0; }
.card b, .card strong { color: #fff; }
a.card:hover, .card.hover:hover { border-color: rgba(255, 201, 51, 0.45); background: rgba(255,255,255,.065); transform: translateY(-4px); }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- bento (labs) ---------- */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); grid-auto-rows: 260px; gap: 18px; }
.tile { position: relative; overflow: hidden; border-radius: 26px; border: 1px solid var(--border); text-decoration: none; color: #fff; display: flex; flex-direction: column; justify-content: flex-end; padding: 28px; isolation: isolate; }
.tile img.bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transition: transform .8s cubic-bezier(.2,.7,.2,1); }
.tile::before { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(6,8,22,0) 25%, rgba(6,8,22,.55) 55%, rgba(6,8,22,.95)); }
.tile:hover img.bg { transform: scale(1.06); }
.tile:hover { border-color: rgba(255, 201, 51, 0.5); }
.tile h3 { font-size: 26px; margin-bottom: 6px; }
.tile p { color: rgba(238, 241, 251, .78); margin: 0 0 16px; max-width: 460px; }
.tile .go { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; color: var(--yellow); }
.tile .go::after { content: '→'; transition: transform .2s; }
.tile:hover .go::after { transform: translateX(4px); }
.t-big { grid-column: span 4; grid-row: span 2; }
.t-big h3 { font-size: clamp(28px, 3vw, 38px); }
.t-side { grid-column: span 2; grid-row: span 1; }
.t-half { grid-column: span 3; }
.t-wide { grid-column: span 6; }
.tile.solid { background: linear-gradient(135deg, rgba(255, 201, 51, 0.16), rgba(91, 140, 255, 0.12)); justify-content: space-between; }
.tile.solid::before { display: none; }
.tile .big-num { font-family: 'Space Grotesk', sans-serif; font-size: 64px; font-weight: 700; line-height: 1; }
.pill { display: inline-flex; width: max-content; align-items: center; gap: 6px; font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; padding: 6px 11px; border-radius: 999px; background: rgba(6, 8, 22, 0.55); border: 1px solid var(--border-2); backdrop-filter: blur(8px); color: #fff; margin-bottom: 14px; }
.pill i { width: 6px; height: 6px; border-radius: 50%; background: var(--yellow); }
@media (max-width: 980px) { .bento { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 240px; } .t-big, .t-wide { grid-column: span 2; } .t-big { grid-row: span 2; } .t-side, .t-half { grid-column: span 1; } }
@media (max-width: 640px) { .bento { grid-template-columns: 1fr; grid-auto-rows: 280px; } .t-big, .t-side, .t-half, .t-wide { grid-column: span 1; grid-row: span 1; } }

/* stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stat { padding: 26px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); }
.stat b { display: block; font-family: 'Space Grotesk', sans-serif; font-size: 44px; line-height: 1; color: #fff; }
.stat span { color: var(--muted); font-size: 14px; }
@media (max-width: 800px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* study cards */
.study { display: flex; gap: 18px; align-items: flex-start; text-decoration: none; color: inherit; }
.icon { flex: none; width: 50px; height: 50px; border-radius: 15px; display: grid; place-items: center; background: linear-gradient(135deg, rgba(255,201,51,.22), rgba(255,201,51,.06)); border: 1px solid rgba(255, 201, 51, .3); color: var(--yellow); }
.icon svg { width: 24px; height: 24px; }

/* videos */
.videos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 980px) { .videos { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .videos { grid-template-columns: 1fr; } }
.video { border-radius: 20px; overflow: hidden; text-decoration: none; color: var(--text); border: 1px solid var(--border); background: var(--surface); display: flex; flex-direction: column; transition: transform .25s, border-color .25s; }
.video:hover { transform: translateY(-4px); border-color: rgba(255, 0, 51, .5); }
.video .thumb { position: relative; aspect-ratio: 16 / 9; background: #111; overflow: hidden; }
.video .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.video:hover .thumb img { transform: scale(1.05); }
.video .thumb::after { content: ''; position: absolute; left: 50%; top: 50%; width: 56px; height: 56px; margin: -28px 0 0 -28px; border-radius: 50%; background: rgba(255, 0, 51, .92) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M8 5v14l11-7z'/%3E%3C/svg%3E") center / 26px no-repeat; box-shadow: 0 8px 24px rgba(255,0,51,.45); transition: transform .25s; }
.video:hover .thumb::after { transform: scale(1.1); }
.video .meta { padding: 16px 18px 18px; }
.video .meta b { display: block; font-size: 15px; line-height: 1.4; font-weight: 600; }
.video .meta small { color: var(--muted); }

/* CTA band */
.band { position: relative; overflow: hidden; border-radius: 32px; padding: 56px; display: grid; grid-template-columns: auto 1fr auto; gap: 36px; align-items: center; background: linear-gradient(135deg, #10183a, #0a0f24); border: 1px solid var(--border-2); }
.band::before { content: ''; position: absolute; width: 500px; height: 500px; right: -120px; top: -220px; background: radial-gradient(circle, rgba(255, 201, 51, .28), transparent 65%); pointer-events: none; }
.band img { width: 120px; height: 120px; border-radius: 50%; box-shadow: 0 0 0 4px var(--yellow), 0 0 50px rgba(255,201,51,.4); }
.band h2 { margin-top: 0; font-size: clamp(28px, 3.4vw, 40px); }
.band p { color: var(--muted); margin: 0; }
.band .ctas { display: flex; flex-direction: column; gap: 12px; position: relative; }
@media (max-width: 900px) { .band { grid-template-columns: 1fr; text-align: center; padding: 40px 24px; } .band img { margin: 0 auto; } .band .ctas { flex-direction: row; flex-wrap: wrap; justify-content: center; } }

/* footer */
footer { border-top: 1px solid var(--border); color: var(--muted); padding: 36px 0; font-size: 14px; margin-top: 40px; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; align-items: center; }
footer a { color: #fff; text-decoration: none; }
footer a:hover { color: var(--yellow); }
footer .social { display: flex; gap: 18px; }

/* ---------- inner pages ---------- */
.page-hero { padding: 90px 0 40px; }
.page-hero h1 { font-size: clamp(40px, 6vw, 72px); margin: 16px 0 16px; line-height: 1.02; font-weight: 700; letter-spacing: -0.035em; }
.page-hero p { font-size: 19px; max-width: 700px; margin: 0; color: var(--muted); }
.steps { display: grid; gap: 14px; counter-reset: step; }
.step { padding-left: 84px; }
.step::before { counter-increment: step; content: counter(step, decimal-leading-zero); position: absolute; left: 24px; top: 24px; font-family: 'Space Grotesk', sans-serif; font-size: 28px; font-weight: 700; color: var(--yellow); line-height: 1; }
.note { border: 1px solid rgba(255, 201, 51, .25); background: rgba(255, 201, 51, .06); padding: 16px 20px; border-radius: 16px; color: var(--muted); font-size: 15px; }
ul.check { list-style: none; padding: 0; margin: 14px 0 0; }
ul.check li { padding-left: 28px; position: relative; margin: 8px 0; color: var(--muted); }
ul.check li::before { content: '✓'; position: absolute; left: 0; color: var(--ok); font-weight: 800; }
details { background: var(--surface); border: 1px solid var(--border); border-radius: 18px; padding: 4px 22px; margin-bottom: 12px; transition: border-color .2s; }
details[open] { border-color: rgba(255, 201, 51, .35); }
details summary { cursor: pointer; padding: 18px 0; font-family: 'Space Grotesk', sans-serif; font-weight: 600; font-size: 19px; color: #fff; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
details summary::-webkit-details-marker { display: none; }
details summary::after { content: '+'; font-size: 26px; color: var(--yellow); transition: transform .2s; }
details[open] summary::after { transform: rotate(45deg); }
details .body { padding-bottom: 20px; color: var(--muted); }
details .body p { margin-top: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.chip { font-size: 13px; background: rgba(255,255,255,.06); color: var(--text); border: 1px solid var(--border); padding: 6px 12px; border-radius: 999px; }

/* phonetic alphabet */
.abc { display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); gap: 10px; }
.abc button { font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 14px 8px; cursor: pointer; transition: transform .15s, background .15s, border-color .15s; }
.abc button:hover { transform: translateY(-3px); border-color: rgba(255,201,51,.5); }
.abc button.on { background: var(--yellow); border-color: var(--yellow); }
.abc button.on b, .abc button.on strong, .abc button.on span { color: #111 !important; }
.abc b { display: block; font-family: 'Space Grotesk', sans-serif; font-size: 30px; color: var(--yellow); line-height: 1.1; }
.abc span { font-size: 12px; color: var(--muted); }
input[type="text"], input:not([type]) { background: rgba(255,255,255,.05) !important; color: #fff; border: 1px solid var(--border-2) !important; outline: none; }
input:focus { border-color: var(--yellow) !important; }

/* codes */
.code-card { text-align: center; }
.code-card .code { font-family: 'Space Grotesk', sans-serif; font-size: 48px; font-weight: 700; letter-spacing: .04em; background: linear-gradient(180deg, #fff, var(--yellow)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* quiz */
.seg { display: flex; flex-wrap: wrap; gap: 8px; }
.seg button { font: inherit; font-size: 14px; font-weight: 600; padding: 10px 16px; border-radius: 999px; border: 1px solid var(--border-2); background: transparent; color: var(--text); cursor: pointer; transition: background .15s; }
.seg button:hover { background: var(--surface-2); }
.seg button.on { background: var(--yellow); color: #111; border-color: var(--yellow); }
.q-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 10px; color: var(--muted); font-size: 14px; font-weight: 600; }
.progress { height: 6px; background: rgba(255,255,255,.08); border-radius: 999px; overflow: hidden; margin-bottom: 26px; }
.progress i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--yellow), var(--cyan)); transition: width .4s; }
.q-text { font-family: 'Space Grotesk', sans-serif; font-size: 23px; font-weight: 600; color: #fff; margin: 0 0 22px; line-height: 1.35; }
.opts { display: grid; gap: 10px; }
.opt { text-align: left; font: inherit; font-size: 16px; padding: 15px 16px; border-radius: 16px; border: 1px solid var(--border-2); background: rgba(255,255,255,.03); cursor: pointer; display: flex; gap: 14px; align-items: center; color: var(--text); transition: border-color .15s, background .15s; }
.opt:hover:not(:disabled) { border-color: var(--yellow); background: rgba(255,201,51,.06); }
.opt .l { flex: none; width: 30px; height: 30px; border-radius: 10px; background: rgba(255,255,255,.08); display: grid; place-items: center; font-weight: 700; color: #fff; }
.opt.right { border-color: var(--ok); background: rgba(52, 211, 153, .1); }
.opt.right .l { background: var(--ok); color: #062; }
.opt.wrong { border-color: var(--bad); background: rgba(248, 113, 113, .1); }
.opt.wrong .l { background: var(--bad); color: #300; }
.opt:disabled { cursor: default; }
.explain { margin-top: 18px; padding: 16px 18px; border-radius: 16px; background: rgba(91, 140, 255, .08); border: 1px solid rgba(91, 140, 255, .25); color: var(--text); }
.explain b { color: #fff; }
.q-actions { display: flex; justify-content: flex-end; margin-top: 20px; }
.result { text-align: center; }
.result .score { font-family: 'Space Grotesk', sans-serif; font-size: 84px; font-weight: 700; line-height: 1; background: linear-gradient(180deg, #fff, var(--yellow)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.bars { display: grid; gap: 12px; margin: 28px auto; max-width: 540px; text-align: left; }
.bar-row { display: grid; grid-template-columns: 170px 1fr 48px; gap: 12px; align-items: center; font-size: 14px; font-weight: 600; }
.bar { height: 8px; border-radius: 999px; background: rgba(255,255,255,.08); overflow: hidden; }
.bar i { display: block; height: 100%; border-radius: 999px; }
@media (max-width: 520px) { .bar-row { grid-template-columns: 110px 1fr 40px; } }
.hidden { display: none !important; }