:root {
  --night: #071426;
  --night-2: #0b1e35;
  --blue: #2878f0;
  --blue-soft: #e7f0ff;
  --green: #0d8b67;
  --gold: #e2a426;
  --paper: #f5f3ed;
  --white: #fff;
  --ink: #10233a;
  --muted: #667486;
  --line: rgba(16,35,58,.15);
  --max: 1360px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: Inter, Arial, Helvetica, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 100; left: 16px; top: 12px; padding: 12px 16px; color: #fff; background: var(--blue); transform: translateY(-150%); }
.skip-link:focus { transform: none; }

.site-header { height: 82px; padding: 0 max(24px, calc((100vw - var(--max)) / 2)); display: flex; justify-content: space-between; align-items: center; position: relative; z-index: 30; background: rgba(245,243,237,.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: 16px; font-weight: 700; letter-spacing: -.02em; }
.brand img { width: 43px; height: 43px; border-radius: 10px; }
.brand strong { color: var(--blue); }
.main-nav { display: flex; align-items: center; gap: 32px; font-size: 13px; font-weight: 700; }
.main-nav > a:not(.nav-download) { position: relative; }
.main-nav > a:not(.nav-download)::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -7px; height: 2px; background: var(--blue); transition: right .2s ease; }
.main-nav > a:hover::after, .main-nav > a:focus-visible::after { right: 0; }
.nav-download { padding: 13px 17px; color: #fff; background: var(--night); }
.nav-download span { margin-left: 20px; color: #72aaff; }
.nav-toggle { display: none; width: 46px; height: 46px; padding: 11px; border: 0; background: transparent; }
.nav-toggle > span:not(.sr-only) { display: block; height: 2px; margin: 6px 0; background: var(--night); }

.hero { min-height: calc(100vh - 82px); position: relative; display: grid; grid-template-columns: 1.05fr .95fr; grid-template-rows: 1fr auto; gap: 30px 80px; padding: 90px max(24px, calc((100vw - var(--max)) / 2)) 0; overflow: hidden; }
.hero-lines { position: absolute; inset: 0; opacity: .42; pointer-events: none; background-image: linear-gradient(to right, transparent calc(100% - 1px), var(--line) 1px), linear-gradient(to bottom, transparent calc(100% - 1px), var(--line) 1px); background-size: 8vw 8vw; mask-image: linear-gradient(to bottom, transparent, #000 16%, #000 88%, transparent); }
.hero-copy { position: relative; z-index: 2; align-self: center; padding: 35px 0 80px; }
.eyebrow, .section-kicker { margin: 0 0 26px; font-size: 10px; font-weight: 850; letter-spacing: .21em; text-transform: uppercase; }
.eyebrow { display: flex; align-items: center; gap: 11px; }
.eyebrow i { width: 27px; height: 2px; background: var(--green); }
.hero h1, .section-heading h2, .exam-copy h2, .privacy-copy h2, .download-copy h2 { margin: 0; font-size: clamp(55px, 6.4vw, 102px); line-height: .91; letter-spacing: -.072em; }
.hero h1 em, .section-heading h2 em, .privacy-copy h2 em { color: var(--blue); font-style: normal; }
.hero-lead { max-width: 660px; margin: 34px 0 0; color: #536479; font-size: clamp(17px, 1.35vw, 21px); line-height: 1.65; }
.hero-actions { display: flex; gap: 13px; flex-wrap: wrap; margin-top: 37px; }
.button { min-width: 240px; padding: 18px 20px; display: inline-flex; align-items: center; justify-content: space-between; gap: 25px; font-size: 12px; font-weight: 800; transition: transform .2s, background .2s, color .2s; }
.button:hover, .button:focus-visible { transform: translateY(-3px); }
.button-primary { background: var(--blue); color: #fff; }
.button-primary:hover { background: var(--night); }
.button-ghost { border: 1px solid var(--line); background: rgba(255,255,255,.4); }
.button b { font-size: 18px; }
.hero-facts { margin-top: 34px; display: flex; gap: 10px; flex-wrap: wrap; }
.hero-facts span { padding: 9px 11px; border: 1px solid var(--line); color: var(--muted); font-size: 10px; }
.hero-facts b { color: var(--ink); }

.hero-visual { min-height: 650px; position: relative; z-index: 1; align-self: end; }
.halo { position: absolute; border-radius: 50%; border: 1px solid rgba(40,120,240,.22); }
.halo-one { width: 570px; height: 570px; right: -10%; top: 3%; box-shadow: inset 0 0 90px rgba(40,120,240,.06); }
.halo-two { width: 390px; height: 390px; right: 5%; top: 17%; box-shadow: 0 0 0 42px rgba(40,120,240,.025), 0 0 0 84px rgba(40,120,240,.02); }
.phone { padding: 13px; border: 3px solid #26384c; border-radius: 42px; background: #05090e; box-shadow: 0 32px 75px rgba(7,20,38,.28); overflow: hidden; }
.phone img { width: 100%; border-radius: 29px; }
.phone-speaker { position: absolute; z-index: 3; width: 64px; height: 5px; top: 10px; left: 50%; border-radius: 5px; background: #344050; transform: translateX(-50%); }
.phone-main { width: 330px; position: absolute; right: 12%; bottom: -18%; transform: rotate(4deg); }
.phone-main .phone-speaker, .phone-exam .phone-speaker { position: absolute; }
.app-badge { position: absolute; z-index: 4; top: 8%; left: 0; width: 165px; padding: 12px; display: flex; align-items: center; gap: 10px; color: #fff; background: var(--night); box-shadow: 10px 10px 0 var(--blue); }
.app-badge img { width: 58px; height: 58px; border-radius: 13px; }
.app-badge span { font-size: 25px; font-weight: 900; line-height: .8; letter-spacing: -.05em; }
.app-badge small { font-size: 8px; letter-spacing: .17em; color: #8ab7ff; }
.score-chip { position: absolute; z-index: 4; right: 0; bottom: 16%; padding: 18px 20px; color: #fff; background: var(--green); box-shadow: 9px 9px 0 var(--night); }
.score-chip small, .score-chip span, .score-chip strong { display: block; }
.score-chip small { font-size: 8px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.score-chip strong { margin: 7px 0 3px; font-size: 27px; }
.score-chip span { font-size: 9px; opacity: .8; }
.hero-metrics { grid-column: 1 / -1; position: relative; z-index: 4; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); background: rgba(245,243,237,.88); }
.hero-metrics div { min-height: 112px; padding: 26px 25px; display: flex; align-items: baseline; gap: 13px; border-right: 1px solid var(--line); }
.hero-metrics div:last-child { border-right: 0; }
.hero-metrics strong { color: var(--blue); font-size: 35px; letter-spacing: -.05em; }
.hero-metrics span { color: var(--muted); font-size: 11px; font-weight: 700; }

.learning-section { max-width: var(--max); margin: auto; padding: 150px 24px 170px; }
.section-heading { display: grid; grid-template-columns: 1.3fr .7fr; align-items: end; gap: 70px; margin-bottom: 70px; }
.section-kicker { color: var(--green); }
.section-heading > p { margin: 0 0 7px; color: var(--muted); font-size: 16px; line-height: 1.75; }
.feature-grid { display: grid; grid-template-columns: 1.2fr .8fr; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.feature { min-height: 430px; position: relative; padding: 28px 30px 32px; display: flex; flex-direction: column; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255,255,255,.28); overflow: hidden; }
.feature-wide { grid-row: span 2; min-height: 860px; padding-right: 12%; }
.feature-number { color: var(--muted); font: 700 10px monospace; letter-spacing: .1em; }
.feature-icon { margin: 62px 0 35px; color: var(--blue); font-size: 83px; font-weight: 200; line-height: 1; }
.feature h3 { margin: auto 0 13px; font-size: clamp(33px, 3vw, 51px); letter-spacing: -.05em; }
.feature p { max-width: 560px; margin: 0; color: var(--muted); line-height: 1.65; }
.feature ul { margin: 32px 0 0; padding: 0; display: grid; gap: 12px; list-style: none; }
.feature li { padding: 13px 0; border-top: 1px solid var(--line); font-size: 12px; font-weight: 750; }
.feature li::before { content: "✓"; margin-right: 10px; color: var(--green); }
.mini-pills { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 7px; }
.mini-pills span { padding: 8px 10px; border: 1px solid var(--line); font-size: 9px; font-weight: 800; }
.feature-dark { color: #fff; background: var(--night); }
.feature-dark .feature-number, .feature-dark p { color: rgba(255,255,255,.58); }
.feature-dark .feature-icon { color: #65a2ff; }
.repeat-line { display: flex; gap: 9px; margin-top: 38px; }
.repeat-line i { width: 11px; height: 11px; border: 2px solid #65a2ff; border-radius: 50%; }
.repeat-line i:nth-child(-n+3) { background: #65a2ff; }
.feature-accent { color: #fff; background: var(--green); }
.feature-accent .feature-number, .feature-accent p { color: rgba(255,255,255,.7); }
.feature-accent .feature-icon { color: #fff; }
.progress-demo { height: 9px; margin-top: 35px; border-radius: 10px; background: rgba(0,0,0,.2); overflow: hidden; }
.progress-demo span { display: block; width: 72%; height: 100%; background: #fff; }

.exam-section { min-height: 900px; padding: 140px max(24px, calc((100vw - var(--max)) / 2)); display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; color: #fff; background: var(--night); overflow: hidden; }
.section-kicker-light { color: #7babf5; }
.exam-copy h2 em { color: #65a2ff; font-style: normal; }
.exam-copy > p:not(.section-kicker):not(.oral-note) { max-width: 660px; margin: 35px 0 0; color: rgba(255,255,255,.63); font-size: 17px; line-height: 1.75; }
.exam-stats { margin-top: 50px; display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid rgba(255,255,255,.16); border-left: 1px solid rgba(255,255,255,.16); }
.exam-stats div { min-height: 105px; padding: 20px 16px; border-right: 1px solid rgba(255,255,255,.16); border-bottom: 1px solid rgba(255,255,255,.16); }
.exam-stats strong, .exam-stats span { display: block; }
.exam-stats strong { color: #65a2ff; font-size: 31px; }
.exam-stats span { margin-top: 7px; color: rgba(255,255,255,.52); font-size: 9px; font-weight: 800; text-transform: uppercase; }
.oral-note { margin: 35px 0 0; padding-left: 18px; border-left: 3px solid var(--gold); color: rgba(255,255,255,.67); font-size: 13px; line-height: 1.7; }
.oral-note b { color: #fff; }
.exam-visual { min-height: 650px; position: relative; }
.exam-visual::before { content: "82"; position: absolute; right: -12%; bottom: -10%; color: rgba(255,255,255,.028); font-size: 430px; font-weight: 950; letter-spacing: -.1em; }
.phone-exam { width: 330px; position: absolute; left: 20%; top: 0; transform: rotate(-3deg); }
.exam-label { position: absolute; z-index: 4; min-width: 135px; padding: 15px 17px; box-shadow: 8px 8px 0 rgba(0,0,0,.28); }
.exam-label small, .exam-label strong { display: block; }
.exam-label small { font-size: 8px; font-weight: 800; letter-spacing: .14em; }
.exam-label strong { margin-top: 7px; font-size: 24px; }
.label-time { left: 0; top: 18%; color: var(--night); background: var(--gold); }
.label-pass { right: 0; bottom: 18%; background: var(--green); }

.privacy-section { max-width: var(--max); margin: auto; padding: 170px 24px; display: grid; grid-template-columns: .72fr 1.28fr; gap: 110px; align-items: center; }
.privacy-mark { aspect-ratio: 1; position: relative; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; box-shadow: inset 0 0 0 20px var(--paper), inset 0 0 0 21px var(--line); }
.privacy-mark img { width: 52%; border-radius: 23%; transform: rotate(-7deg); box-shadow: 14px 14px 0 var(--blue); }
.privacy-mark span { position: absolute; width: 112%; height: 1px; background: var(--line); transform: rotate(-35deg); }
.privacy-lead { max-width: 820px; margin: 34px 0 48px; font-size: 20px; line-height: 1.65; }
.privacy-points { border-top: 1px solid var(--line); }
.privacy-points div { display: grid; grid-template-columns: 42px 1fr; gap: 16px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.privacy-points span { color: var(--blue); font: 800 10px monospace; }
.privacy-points p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.privacy-points b { color: var(--ink); }

.download-section { min-height: 700px; position: relative; padding: 115px max(24px, calc((100vw - var(--max)) / 2)); display: grid; grid-template-columns: 1.2fr .8fr; align-items: center; gap: 70px; color: #fff; background: var(--blue); overflow: hidden; }
.download-grid { position: absolute; inset: 0; opacity: .14; background-image: linear-gradient(rgba(255,255,255,.4) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.4) 1px, transparent 1px); background-size: 65px 65px; }
.download-copy, .download-icon { position: relative; z-index: 2; }
.eyebrow-light { color: rgba(255,255,255,.72); }
.eyebrow-light i { background: #fff; }
.download-copy h2 em { color: var(--night); font-style: normal; }
.download-copy > p:not(.eyebrow) { margin: 30px 0 0; color: rgba(255,255,255,.72); }
.button-light { margin-top: 38px; color: var(--night); background: #fff; }
.button-light:hover { color: #fff; background: var(--night); }
.download-icon { justify-self: center; }
.download-icon::before { content: ""; position: absolute; inset: -44px; border: 1px solid rgba(255,255,255,.3); border-radius: 50%; }
.download-icon img { width: min(330px, 32vw); border-radius: 23%; box-shadow: 22px 22px 0 var(--night); transform: rotate(5deg); }
.download-icon span { position: absolute; right: -40px; top: -40px; padding: 11px 13px; color: var(--blue); background: #fff; font: 900 12px monospace; box-shadow: 6px 6px 0 var(--night); }
.notice-section { padding: 30px max(24px, calc((100vw - var(--max)) / 2)); display: grid; grid-template-columns: 120px 1fr; gap: 30px; color: rgba(255,255,255,.6); background: var(--night); border-bottom: 1px solid rgba(255,255,255,.12); }
.notice-section span { color: #8ab7ff; font-size: 9px; font-weight: 850; letter-spacing: .17em; text-transform: uppercase; }
.notice-section p { max-width: 1000px; margin: 0; font-size: 11px; line-height: 1.7; }
.site-footer { min-height: 180px; padding: 48px max(24px, calc((100vw - var(--max)) / 2)); display: grid; grid-template-columns: 1fr 1fr auto; gap: 28px; align-items: start; color: #fff; background: var(--night); }
.brand-footer strong { color: #65a2ff; }
.site-footer > p { margin: 12px 0; color: rgba(255,255,255,.5); font-size: 12px; }
.site-footer > p a { color: #8ab7ff; }
.site-footer nav { display: flex; gap: 25px; justify-content: flex-end; font-size: 12px; font-weight: 700; }
.site-footer small { grid-column: 1 / -1; padding-top: 25px; color: rgba(255,255,255,.38); border-top: 1px solid rgba(255,255,255,.12); font-size: 9px; letter-spacing: .1em; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1080px) {
  .hero { grid-template-columns: 1fr; padding-top: 75px; }
  .hero-copy { padding-bottom: 20px; }
  .hero-visual { width: min(650px, 100%); justify-self: center; }
  .section-heading { grid-template-columns: 1fr; gap: 28px; }
  .exam-section { grid-template-columns: 1fr; }
  .exam-visual { width: min(650px, 100%); justify-self: center; }
  .privacy-section { grid-template-columns: .8fr 1.2fr; gap: 60px; }
}

@media (max-width: 760px) {
  .site-header { height: 70px; padding: 0 18px; }
  .brand img { width: 39px; height: 39px; }
  .nav-toggle { display: block; }
  .nav-toggle[aria-expanded="true"] > span:first-child { transform: translateY(4px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] > span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }
  .main-nav { display: none; position: absolute; left: 0; right: 0; top: 70px; padding: 18px; flex-direction: column; align-items: stretch; gap: 0; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 18px 35px rgba(7,20,38,.14); }
  .main-nav.is-open { display: flex; }
  .main-nav a { padding: 15px 0; border-bottom: 1px solid var(--line); }
  .main-nav .nav-download { margin-top: 14px; padding: 15px; }
  .hero { min-height: auto; padding: 65px 18px 0; gap: 35px; }
  .hero h1, .section-heading h2, .exam-copy h2, .privacy-copy h2, .download-copy h2 { font-size: clamp(47px, 14vw, 72px); }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .button { min-width: 0; }
  .hero-visual { min-height: 570px; }
  .phone-main { width: 270px; right: 6%; bottom: -13%; }
  .app-badge { left: 0; top: 7%; }
  .score-chip { right: 0; bottom: 15%; }
  .halo-one { width: 460px; height: 460px; right: -30%; }
  .halo-two { width: 300px; height: 300px; }
  .hero-metrics { grid-template-columns: 1fr 1fr; }
  .hero-metrics div { min-height: 90px; border-bottom: 1px solid var(--line); }
  .learning-section { padding: 100px 18px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-wide { grid-row: auto; min-height: 570px; }
  .feature { min-height: 430px; }
  .exam-section { min-height: auto; padding: 100px 18px; gap: 55px; }
  .exam-stats { grid-template-columns: 1fr 1fr; }
  .exam-visual { min-height: 610px; }
  .phone-exam { width: 270px; left: 14%; }
  .label-pass { right: 0; }
  .privacy-section { padding: 100px 18px; grid-template-columns: 1fr; gap: 70px; }
  .privacy-mark { width: min(390px, 90vw); justify-self: center; }
  .download-section { min-height: 850px; padding: 95px 18px; grid-template-columns: 1fr; }
  .download-icon { grid-row: 1; }
  .download-icon img { width: 230px; }
  .notice-section { padding: 28px 18px; grid-template-columns: 1fr; gap: 12px; }
  .site-footer { padding: 45px 18px; grid-template-columns: 1fr; }
  .site-footer nav { justify-content: flex-start; }
  .site-footer small { grid-column: auto; }
}

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