:root {
  --navy: #071c2f;
  --navy-2: #0d3552;
  --ink: #102c42;
  --muted: #60717d;
  --paper: #fbfcf9;
  --soft: #f1f5f4;
  --line: #dce5e8;
  --lime: #bdf429;
  --lime-dark: #668c00;
  --sky: #6ed4ff;
  --white: #fff;
  --danger: #b6463c;
  --success: #2d7d46;
  --shadow: 0 22px 60px rgba(7, 28, 47, .11);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.55;
}
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 12px; top: 12px; z-index: 100; padding: 10px 14px; background: #fff; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 28, 47, .97);
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
  backdrop-filter: blur(14px);
}
.header-inner { min-height: 76px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 900; letter-spacing: -.025em; }
.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: var(--lime);
  color: var(--navy);
  font-size: 12px;
}
.main-nav { display: flex; gap: 25px; margin-left: auto; color: #d3dfe5; font-size: 14px; font-weight: 700; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--lime); }
.header-actions { display: flex; align-items: center; gap: 10px; }
.mobile-menu { display: none; position: relative; }
.mobile-menu summary { cursor: pointer; list-style: none; font-weight: 800; }
.mobile-menu div {
  position: absolute;
  right: 0;
  top: 44px;
  min-width: 230px;
  padding: 12px;
  border-radius: 14px;
  background: #fff;
  color: var(--ink);
  box-shadow: var(--shadow);
}
.mobile-menu a { display: block; padding: 10px 12px; border-radius: 8px; }
.mobile-menu a:hover { background: var(--soft); }

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: 10px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 850;
}
.button.primary { background: var(--lime); color: var(--navy); }
.button.secondary { background: #fff; border-color: var(--line); color: var(--ink); }
.button.ghost { border-color: rgba(255, 255, 255, .28); color: #fff; }
.button.dark { background: var(--navy); color: #fff; }
.button:disabled { opacity: .45; cursor: not-allowed; }

.hero {
  padding: 88px 0 76px;
  color: #fff;
  background:
    radial-gradient(circle at 82% 20%, rgba(110, 212, 255, .18), transparent 30%),
    linear-gradient(135deg, var(--navy), #0a304b 70%, #0e5370);
}
.hero-grid { display: grid; grid-template-columns: 1.12fr .88fr; gap: 72px; align-items: center; }
.eyebrow { color: var(--lime-dark); font-size: 12px; font-weight: 900; letter-spacing: .11em; text-transform: uppercase; }
.hero .eyebrow { color: var(--sky); }
.hero h1, .page-hero h1 {
  max-width: 900px;
  margin: 18px 0 22px;
  font-size: clamp(47px, 6vw, 78px);
  line-height: .99;
  letter-spacing: -.057em;
}
.hero h1 em { color: var(--lime); font-style: normal; }
.hero-copy > p { max-width: 720px; color: #d0dee5; font-size: 20px; line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 30px; }
.search-box {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px;
  margin-top: 29px;
  background: #fff;
  border-radius: 13px;
  max-width: 720px;
  box-shadow: var(--shadow);
}
.search-box input { flex: 1; min-width: 0; border: 0; outline: 0; padding: 0 11px; color: var(--ink); }
.search-box .button { flex: 0 0 auto; }
.hero-panel {
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, .17);
  border-radius: 22px;
  background: rgba(255, 255, 255, .07);
  box-shadow: 0 35px 90px rgba(0, 0, 0, .25);
}
.hierarchy { display: grid; gap: 12px; }
.hierarchy-row {
  display: grid;
  grid-template-columns: 38px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 15px;
  border-radius: 12px;
  background: rgba(255, 255, 255, .08);
}
.hierarchy-row b:first-child { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 10px; background: var(--lime); color: var(--navy); }
.hierarchy-row strong { display: block; }
.hierarchy-row small { color: #b8cad3; }
.hierarchy-row > span { color: var(--sky); font-size: 13px; }

.stats-strip { background: var(--lime); }
.stats-inner { min-height: 82px; display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { display: flex; align-items: center; justify-content: center; gap: 9px; border-right: 1px solid rgba(7, 28, 47, .18); }
.stat:last-child { border: 0; }
.stat strong { font-size: 24px; }
.stat span { color: #31470d; font-size: 13px; }

.section { padding: 88px 0; }
.section.alt { background: var(--soft); }
.section.dark { background: var(--navy); color: #fff; }
.section-heading { display: grid; grid-template-columns: 1.15fr .85fr; gap: 72px; align-items: end; margin-bottom: 34px; }
.section-heading h2, .content-heading h2 { margin: 9px 0 0; font-size: clamp(34px, 4.5vw, 57px); line-height: 1.04; letter-spacing: -.047em; }
.section-heading > p { margin: 0; color: var(--muted); }
.dark .section-heading > p { color: #b4c6cf; }
.section-topline { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 25px; }
.section-topline p { color: var(--muted); margin: 0; }
.text-link { font-weight: 850; text-decoration: underline; text-underline-offset: 3px; }

.provider-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 13px; }
.provider-card {
  min-height: 96px;
  display: grid;
  grid-template-columns: 46px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  transition: .18s ease;
}
.provider-card:hover { transform: translateY(-3px); border-color: #8eae41; box-shadow: var(--shadow); }
.provider-mark, .vendor-badge {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--navy);
  color: var(--lime);
  font-size: 11px;
  font-weight: 950;
}
.provider-card strong { display: block; }
.provider-card small { display: block; color: var(--muted); font-size: 12px; margin-top: 2px; }
.provider-card > b { color: var(--lime-dark); }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.step { min-height: 250px; padding: 26px; border: 1px solid rgba(255, 255, 255, .14); border-radius: 17px; }
.step > b { color: var(--lime); font-size: 34px; }
.step h3 { margin: 44px 0 8px; font-size: 24px; }
.step p { color: #b8c8d0; margin: 0; }

.page-hero { padding: 62px 0 50px; background: var(--navy); color: #fff; }
.page-hero.compact h1 { font-size: clamp(39px, 5vw, 62px); }
.page-hero p { max-width: 760px; color: #c5d4db; font-size: 18px; }
.breadcrumbs { display: flex; gap: 7px; flex-wrap: wrap; margin-bottom: 23px; color: #9db2bd; font-size: 13px; }
.breadcrumbs a { color: var(--lime); }
.provider-identity { display: flex; align-items: center; gap: 18px; }
.provider-identity .vendor-badge { width: 65px; height: 65px; border: 1px solid rgba(255, 255, 255, .18); }
.provider-identity h1 { margin: 0; }
.provider-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.meta-pill, .status-pill, .difficulty {
  display: inline-flex;
  align-items: center;
  min-height: 31px;
  padding: 5px 10px;
  border-radius: 99px;
  background: rgba(255, 255, 255, .1);
  color: #d5e2e7;
  font-size: 12px;
  font-weight: 800;
}
.status-pill { background: #eaf6c9; color: #466100; }

.filter-panel {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(210px, .45fr);
  gap: 12px;
  margin-bottom: 18px;
}
.field { display: grid; gap: 7px; }
.field span { font-size: 12px; font-weight: 850; color: var(--muted); }
.field input, .field select, .large-search {
  width: 100%;
  height: 52px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  padding: 0 14px;
  outline: none;
}
.field input:focus, .field select:focus, .large-search:focus { border-color: #86aa32; box-shadow: 0 0 0 3px rgba(189, 244, 41, .17); }
.domain-chips { display: flex; gap: 7px; overflow-x: auto; padding: 4px 0 20px; }
.domain-chips button { white-space: nowrap; border: 1px solid var(--line); border-radius: 99px; background: #fff; padding: 8px 12px; color: var(--muted); cursor: pointer; font-size: 12px; font-weight: 800; }
.domain-chips button.active { background: var(--navy); border-color: var(--navy); color: #fff; }

.exam-list { display: grid; gap: 8px; }
.exam-row {
  min-height: 76px;
  display: grid;
  grid-template-columns: minmax(120px, .45fr) 1fr auto 20px;
  gap: 14px;
  align-items: center;
  padding: 14px 17px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  transition: .15s ease;
}
.exam-row:hover { border-color: #8eae41; transform: translateX(3px); }
.exam-code { font-size: 18px; font-weight: 950; letter-spacing: -.025em; }
.exam-row strong { display: block; }
.exam-row small { color: var(--muted); font-size: 12px; }
.availability { padding: 6px 9px; border-radius: 99px; background: var(--soft); color: var(--muted); font-size: 11px; font-weight: 850; }
.availability.ready { background: #e8f7c1; color: #476400; }
.load-more { display: flex; margin: 24px auto 0; }

.exam-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 24px; align-items: start; }
.exam-sidebar {
  position: sticky;
  top: 100px;
  padding: 21px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: #fff;
}
.exam-sidebar h3 { margin-top: 0; }
.exam-sidebar ul { padding-left: 20px; color: var(--muted); }
.exam-sidebar .button { width: 100%; }
.question-panel {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 17px;
  background: #fff;
  box-shadow: var(--shadow);
}
.question-panel header { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.question-panel header h2 { margin: 5px 0 0; font-size: 25px; }
.question-panel .difficulty { background: var(--soft); color: var(--muted); }
.question-progress { height: 5px; margin: 20px -28px; background: var(--soft); }
.question-progress i { display: block; height: 100%; background: var(--lime); }
.objective { color: var(--muted); font-size: 13px; }
.question-panel h3 { font-size: clamp(21px, 3vw, 30px); line-height: 1.35; letter-spacing: -.025em; }
.question-choices { display: grid; gap: 9px; margin: 24px 0; }
.question-choice {
  min-height: 62px;
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 12px;
  align-items: center;
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}
.question-choice b { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 8px; background: var(--soft); }
.question-choice:hover, .question-choice.selected { border-color: #7d9f2b; background: #f8fce9; }
.question-choice.selected b { background: var(--navy); color: #fff; }
.question-choice.correct { border-color: var(--success); background: #eaf7ed; }
.question-choice.correct b { background: var(--success); color: #fff; }
.question-choice.wrong { border-color: var(--danger); background: #fff0ee; }
.question-choice.wrong b { background: var(--danger); color: #fff; }
.answer-explanation { margin-top: 18px; padding: 18px; border-left: 5px solid var(--success); border-radius: 10px; background: #ebf7ed; }
.answer-explanation p { margin-bottom: 0; }
.question-panel footer { display: flex; justify-content: space-between; gap: 10px; margin-top: 25px; }

.empty-state {
  padding: 50px 28px;
  border: 1px dashed #b7c7cd;
  border-radius: 16px;
  background: #f6f8f7;
  text-align: center;
}
.empty-state h2 { margin: 12px 0; font-size: 34px; }
.empty-state p { max-width: 670px; margin: 0 auto 22px; color: var(--muted); }

.content-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.content-card { padding: 25px; border: 1px solid var(--line); border-radius: 15px; background: #fff; }
.content-card h3 { margin-top: 0; }
.content-card p { color: var(--muted); }
.pricing-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; max-width: 870px; margin: 0 auto; }
.price-card { position: relative; padding: 31px; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow); }
.price-card.featured { background: var(--navy); color: #fff; }
.price-card .tag { position: absolute; top: 0; right: 22px; transform: translateY(-50%); background: var(--lime); color: var(--navy); border-radius: 99px; padding: 7px 10px; font-size: 11px; font-weight: 900; }
.price-card h2 { margin: 8px 0 0; font-size: 45px; }
.price-card ul { padding: 20px 0; list-style: none; border-block: 1px solid var(--line); }
.price-card.featured ul { border-color: rgba(255, 255, 255, .15); }
.price-card li { margin: 9px 0; }
.price-card .button { width: 100%; }

.cta-band { padding: 38px 0; background: var(--sky); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 25px; }
.cta-inner h2 { margin: 0 0 6px; font-size: clamp(28px, 4vw, 44px); letter-spacing: -.035em; }
.cta-inner p { margin: 0; }
.site-footer { padding: 58px 0 25px; background: var(--navy); color: #fff; }
.footer-grid { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 40px; }
.footer-grid > div { display: grid; align-content: start; gap: 8px; }
.footer-grid p, .footer-grid a { color: #aebfc8; font-size: 13px; }
.footer-grid h3 { margin: 0 0 6px; font-size: 13px; text-transform: uppercase; letter-spacing: .08em; }
.footer-bottom { margin-top: 35px; padding-top: 18px; border-top: 1px solid rgba(255, 255, 255, .12); color: #91a5af; font-size: 12px; }

@media (max-width: 980px) {
  .main-nav { display: none; }
  .mobile-menu { display: block; margin-left: auto; }
  .hero-grid, .section-heading, .exam-layout { grid-template-columns: 1fr; gap: 36px; }
  .hero-panel { max-width: 720px; }
  .provider-grid, .content-grid { grid-template-columns: repeat(2, 1fr); }
  .exam-sidebar { position: static; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid rgba(7, 28, 47, .18); }
}

@media (max-width: 680px) {
  body { font-size: 16px; }
  .container { width: min(100% - 28px, 1180px); }
  .header-inner { min-height: 68px; }
  .header-actions > .button.ghost { display: none; }
  .brand > span:last-child { font-size: 14px; }
  .hero { padding: 61px 0 55px; }
  .hero h1, .page-hero h1 { font-size: 45px; }
  .hero-copy > p { font-size: 18px; }
  .hero-actions, .search-box { align-items: stretch; flex-direction: column; }
  .search-box { padding: 9px; }
  .provider-grid, .steps, .content-grid, .pricing-grid, .filter-panel { grid-template-columns: 1fr; }
  .provider-card { grid-template-columns: 44px 1fr 15px; }
  .exam-row { grid-template-columns: 1fr auto; }
  .exam-row > span:nth-child(2), .exam-row .availability { grid-column: 1 / -1; }
  .exam-row > b { position: absolute; right: 22px; }
  .section { padding: 65px 0; }
  .section-heading h2 { font-size: 40px; }
  .question-panel { padding: 20px; }
  .question-progress { margin-inline: -20px; }
  .question-panel footer { align-items: stretch; flex-direction: column; }
  .question-panel footer .button { width: 100%; }
  .cta-inner { align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
}