:root {
  --ink: #102a38;
  --ink-soft: #47606b;
  --navy: #0b2533;
  --navy-2: #143b4e;
  --mint: #a8e6cf;
  --mint-strong: #65c9a6;
  --sand: #f2e9da;
  --paper: #f8faf9;
  --white: #ffffff;
  --line: #dce5e4;
  --warning: #c77832;
  --danger: #b84d4d;
  --success: #27785f;
  --shadow: 0 24px 80px rgba(11, 37, 51, 0.11);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 88% 8%, rgba(168, 230, 207, 0.24), transparent 26rem),
    var(--paper);
}

button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
button:focus-visible, a:focus-visible { outline: 3px solid var(--mint-strong); outline-offset: 3px; }

.skip-link { position: fixed; top: -100px; left: 1rem; z-index: 100; padding: .75rem 1rem; background: var(--white); color: var(--navy); border-radius: 8px; }
.skip-link:focus { top: 1rem; }

.site-header {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand { display: flex; align-items: center; gap: 12px; color: var(--navy); text-decoration: none; }
.brand-mark { width: 46px; height: 46px; display: grid; place-items: center; background: var(--navy); color: var(--mint); border-radius: 14px; font-weight: 800; letter-spacing: -.04em; }
.brand strong, .brand small { display: block; }
.brand strong { font-size: 1rem; }
.brand small { margin-top: 2px; color: var(--ink-soft); font-size: .72rem; }
.header-link { color: var(--navy); font-size: .9rem; font-weight: 700; text-underline-offset: 4px; }

main { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.screen[hidden] { display: none; }

.hero { min-height: 555px; display: grid; grid-template-columns: 1.55fr .85fr; border-radius: var(--radius-lg); overflow: hidden; background: var(--navy); color: var(--white); box-shadow: var(--shadow); }
.hero-copy { padding: clamp(48px, 7vw, 92px); align-self: center; }
.eyebrow { margin: 0 0 14px; color: var(--success); font-size: .78rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.hero .eyebrow, .contact-strip .eyebrow { color: var(--mint); }
h1, h2, h3, p { text-wrap: pretty; }
h1 { max-width: 780px; margin: 0; font-size: clamp(2.65rem, 6vw, 5.4rem); line-height: .98; letter-spacing: -.055em; }
.hero-lead { max-width: 680px; margin: 28px 0 0; color: #d8e4e8; font-size: clamp(1.05rem, 2vw, 1.25rem); line-height: 1.65; }
.trust-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.trust-row span { padding: 8px 12px; border: 1px solid rgba(255,255,255,.2); border-radius: 999px; color: #eaf3f5; font-size: .8rem; }

.hero-panel { display: flex; flex-direction: column; justify-content: center; padding: 40px; background: var(--mint); color: var(--navy); }
.panel-kicker { margin: 0 0 22px; font-size: .76rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.hero-panel ol { margin: 0; padding: 0; list-style: none; }
.hero-panel li { display: grid; grid-template-columns: 46px 1fr; align-items: center; gap: 10px; padding: 22px 0; border-top: 1px solid rgba(11, 37, 51, .2); font-size: 1.04rem; font-weight: 750; }
.hero-panel li:last-child { border-bottom: 1px solid rgba(11, 37, 51, .2); }
.hero-panel li span { font-size: .74rem; letter-spacing: .1em; }

.mode-section, .topics-section, .history-section { padding: 92px 0 0; }
.section-heading { display: grid; grid-template-columns: 1fr 1fr; align-items: end; gap: 36px; margin-bottom: 30px; }
.section-heading h2, .contact-strip h2 { margin: 0; font-size: clamp(2rem, 4vw, 3.35rem); line-height: 1.04; letter-spacing: -.04em; }
.section-heading > p { margin: 0; color: var(--ink-soft); line-height: 1.7; }
.compact-heading { align-items: center; }

.mode-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.mode-card { position: relative; min-height: 360px; padding: 30px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); }
.mode-card-featured { background: var(--sand); border-color: transparent; }
.mode-tag { align-self: flex-start; padding: 7px 10px; border-radius: 999px; background: var(--navy); color: var(--white); font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.mode-tag-muted { background: #e9efef; color: var(--ink-soft); }
.mode-number { margin-top: 24px; font-size: 3.6rem; font-weight: 800; letter-spacing: -.07em; }
.mode-card h3 { margin: 4px 0 10px; font-size: 1.4rem; }
.mode-card p { margin: 0 0 24px; color: var(--ink-soft); line-height: 1.6; }
.mode-card button { margin-top: auto; }

.primary-button, .secondary-button { min-height: 50px; padding: 0 19px; border-radius: 999px; border: 1px solid transparent; font-weight: 800; cursor: pointer; transition: transform .15s ease, background .15s ease, opacity .15s ease; }
.primary-button { background: var(--navy); color: var(--white); }
.secondary-button { background: transparent; color: var(--navy); border-color: #afc1c5; }
.primary-button:hover, .secondary-button:hover { transform: translateY(-2px); }
.primary-button:disabled, .secondary-button:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.small-button { min-height: 42px; }
.button-link { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; }
.text-button { padding: 6px 0; border: 0; background: transparent; color: var(--navy); font-weight: 750; cursor: pointer; text-decoration: underline; text-underline-offset: 4px; }

.topic-list { display: flex; flex-wrap: wrap; gap: 12px; }
.topic-list span { padding: 14px 17px; border: 1px solid var(--line); border-radius: 999px; background: var(--white); font-weight: 700; }

.history-content { min-height: 150px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); }
.history-empty { height: 100%; min-height: 100px; display: grid; place-items: center; color: var(--ink-soft); text-align: center; }
.history-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.history-item { padding: 18px; border-radius: var(--radius-sm); background: #f1f5f4; }
.history-item strong { display: block; font-size: 1.6rem; }
.history-item span { display: block; margin-top: 5px; color: var(--ink-soft); font-size: .78rem; }

.quiz-screen { padding: 34px 0 90px; }
.quiz-shell { max-width: 850px; margin: 0 auto; }
.quiz-topbar { display: flex; justify-content: space-between; align-items: center; gap: 18px; }
.quiz-meta { display: flex; gap: 18px; color: var(--ink-soft); font-size: .86rem; font-weight: 750; }
.progress-track { height: 7px; margin: 18px 0 28px; overflow: hidden; border-radius: 999px; background: #dfebea; }
.progress-track span { display: block; width: 0; height: 100%; background: var(--mint-strong); transition: width .25s ease; }
.question-card { padding: clamp(26px, 5vw, 54px); background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.question-meta { display: flex; flex-wrap: wrap; gap: 8px; }
.topic-badge, .level-badge { padding: 7px 10px; border-radius: 999px; font-size: .72rem; font-weight: 800; }
.topic-badge { background: var(--sand); }
.level-badge { background: #e9f5f1; color: var(--success); text-transform: capitalize; }
.question-card h2 { margin: 26px 0 30px; font-size: clamp(1.55rem, 4vw, 2.55rem); line-height: 1.16; letter-spacing: -.035em; }
.answer-list { display: grid; gap: 12px; }
.answer-option { width: 100%; min-height: 64px; padding: 15px 18px; display: grid; grid-template-columns: 36px 1fr; align-items: center; gap: 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--paper); color: var(--ink); text-align: left; cursor: pointer; }
.answer-option:hover { border-color: #8da8ae; }
.answer-option.selected { border-color: var(--navy); background: #eaf2f2; box-shadow: 0 0 0 1px var(--navy); }
.answer-letter { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: var(--white); font-weight: 850; }
.question-actions { display: flex; justify-content: space-between; align-items: center; gap: 18px; margin-top: 30px; }

.result-screen { padding: 38px 0 90px; }
.result-hero { min-height: 390px; padding: clamp(34px, 6vw, 72px); display: flex; align-items: center; justify-content: space-between; gap: 40px; border-radius: var(--radius-lg); background: var(--navy); color: var(--white); }
.result-hero h1 { font-size: clamp(2.5rem, 6vw, 5rem); }
.result-hero p:last-child { max-width: 650px; color: #d9e4e7; line-height: 1.65; }
.score-ring { flex: 0 0 230px; aspect-ratio: 1; display: grid; place-content: center; text-align: center; border: 14px solid var(--mint); border-radius: 50%; background: rgba(255,255,255,.05); }
.score-ring strong { font-size: 3.4rem; letter-spacing: -.06em; }
.score-ring span { margin-top: 4px; color: #d9e4e7; font-size: .82rem; }
.result-grid { display: grid; grid-template-columns: 1.35fr .8fr; gap: 18px; margin-top: 18px; }
.result-card { padding: 30px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--white); }
.result-card h2 { margin: 0 0 24px; font-size: 1.5rem; }
.topic-results { display: grid; gap: 18px; }
.topic-result-head { display: flex; justify-content: space-between; gap: 18px; font-size: .9rem; font-weight: 750; }
.topic-result-track { height: 8px; margin-top: 8px; overflow: hidden; border-radius: 999px; background: #e5eceb; }
.topic-result-track span { display: block; height: 100%; background: var(--mint-strong); }
.result-next { background: var(--sand); border-color: transparent; }
.result-next p { color: var(--ink-soft); line-height: 1.7; }
.result-actions { display: grid; gap: 10px; margin-top: 24px; }
.review-section { padding-top: 78px; }
.review-list { display: grid; gap: 12px; }
.review-item { padding: 22px; border: 1px solid var(--line); border-left: 5px solid var(--success); border-radius: var(--radius-sm); background: var(--white); }
.review-item.incorrect { border-left-color: var(--danger); }
.review-item.skipped { border-left-color: var(--warning); }
.review-item summary { cursor: pointer; font-weight: 800; line-height: 1.45; }
.review-body { padding-top: 16px; color: var(--ink-soft); line-height: 1.65; }
.review-body strong { color: var(--ink); }
.source-link { color: var(--navy); font-weight: 750; text-underline-offset: 3px; }
.contact-strip { margin-top: 78px; padding: 38px; display: flex; justify-content: space-between; align-items: center; gap: 32px; border-radius: var(--radius-lg); background: var(--navy); color: var(--white); }
.contact-strip h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
.contact-strip p:last-child { color: #d9e4e7; }
.contact-strip .primary-button { background: var(--mint); color: var(--navy); white-space: nowrap; }

.site-footer { width: min(1180px, calc(100% - 40px)); margin: 0 auto; padding: 28px 0 44px; display: flex; justify-content: space-between; gap: 24px; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: .78rem; }
.site-footer p { margin: 0; }
.site-footer a { color: inherit; text-underline-offset: 3px; }

.legal-page { max-width: 840px; margin: 54px auto 100px; padding: clamp(28px, 6vw, 62px); border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--white); box-shadow: var(--shadow); }
.legal-page h1 { color: var(--navy); font-size: clamp(2.5rem, 6vw, 4.7rem); }
.legal-page h2 { margin: 42px 0 12px; font-size: 1.4rem; }
.legal-page p { color: var(--ink-soft); font-size: 1.02rem; line-height: 1.75; }
.legal-updated { margin-top: 48px; font-size: .86rem !important; }

.consent-banner { position: fixed; z-index: 50; left: 50%; bottom: 18px; width: min(780px, calc(100% - 28px)); transform: translateX(-50%); padding: 18px 20px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border: 1px solid var(--line); border-radius: 18px; background: var(--white); box-shadow: 0 18px 60px rgba(11,37,51,.2); }
.consent-banner[hidden] { display: none; }
.consent-banner strong { display: block; }
.consent-banner p { margin: 4px 0 0; color: var(--ink-soft); font-size: .84rem; line-height: 1.45; }
.consent-actions { display: flex; align-items: center; gap: 16px; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .hero-panel { min-height: 250px; }
  .mode-grid { grid-template-columns: 1fr 1fr; }
  .mode-card:last-child { grid-column: 1 / -1; min-height: 280px; }
  .history-grid { grid-template-columns: repeat(3, 1fr); }
  .result-grid { grid-template-columns: 1fr; }
}

@media (max-width: 660px) {
  .site-header, main, .site-footer { width: min(100% - 24px, 1180px); }
  .site-header { padding: 14px 0; }
  .brand small, .header-link { display: none; }
  .brand-mark { width: 40px; height: 40px; }
  .hero { min-height: auto; border-radius: 20px; }
  .hero-copy { padding: 38px 24px 44px; }
  .hero-panel { padding: 30px 24px; }
  .mode-section, .topics-section, .history-section { padding-top: 64px; }
  .section-heading { grid-template-columns: 1fr; gap: 18px; }
  .mode-grid { grid-template-columns: 1fr; }
  .mode-card:last-child { grid-column: auto; }
  .mode-card { min-height: 320px; padding: 24px; }
  .history-grid { grid-template-columns: 1fr 1fr; }
  .quiz-screen { padding-top: 12px; }
  .quiz-topbar { align-items: flex-start; }
  .quiz-meta { flex-direction: column; gap: 3px; text-align: right; }
  .question-card { border-radius: 20px; }
  .question-actions { align-items: stretch; }
  .question-actions .primary-button { min-width: 135px; }
  .result-hero { padding: 34px 24px; flex-direction: column; align-items: flex-start; border-radius: 20px; }
  .score-ring { flex-basis: auto; width: 180px; align-self: center; }
  .score-ring strong { font-size: 2.8rem; }
  .contact-strip { padding: 30px 24px; flex-direction: column; align-items: stretch; border-radius: 20px; }
  .site-footer { flex-direction: column; }
  .consent-banner { align-items: stretch; flex-direction: column; gap: 14px; }
  .consent-actions { justify-content: flex-end; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}