:root {
  --bg: #0f172a;
  --card: #0b1222;
  --muted: #0c1a33;
  --text: #e2e8f0;
  --subtle: #94a3b8;
  --accent: #f97316;
  --accent-2: #38bdf8;
  --shadow: 0 20px 70px rgba(0, 0, 0, 0.35);
  --radius: 20px;
  --radius-sm: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: radial-gradient(circle at 20% 20%, rgba(56, 189, 248, 0.08), transparent 30%),
    radial-gradient(circle at 80% 0%, rgba(249, 115, 22, 0.1), transparent 35%),
    var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
}

h1, h2, h3, h4 {
  margin: 0 0 0.5em;
  line-height: 1.2;
}

p {
  margin: 0 0 1em;
  color: var(--subtle);
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
  padding: 72px clamp(20px, 4vw, 64px) 48px;
  align-items: center;
}

.hero__content h1 {
  font-size: clamp(2.3rem, 3vw, 3.2rem);
}

.hero__panel {
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.8), rgba(12, 26, 51, 0.9));
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 28px;
  display: grid;
  gap: 16px;
  box-shadow: var(--shadow);
}

.eyebrow {
  display: inline-block;
  padding: 6px 12px;
  background: rgba(56, 189, 248, 0.15);
  color: #e0f2fe;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
}

.lede {
  font-size: 1.05rem;
  color: #cbd5e1;
}

.hero__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 20px 0;
}

.hero__note {
  color: #a5b4fc;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.button {
  text-decoration: none;
  padding: 12px 18px;
  border-radius: 12px;
  font-weight: 700;
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
}

.button--primary {
  background: linear-gradient(120deg, var(--accent), #f59e0b);
  color: #0f172a;
  box-shadow: 0 12px 30px rgba(249, 115, 22, 0.35);
}

.button--primary:hover {
  transform: translateY(-1px);
}

.button--ghost {
  background: rgba(255, 255, 255, 0.06);
}

.section {
  padding: 48px clamp(20px, 4vw, 64px);
}

.section--muted {
  background: rgba(12, 26, 51, 0.55);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.section__header {
  max-width: 900px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.card {
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  padding: 18px;
  display: grid;
  gap: 12px;
  position: relative;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.card:hover {
  border-color: rgba(56, 189, 248, 0.4);
  transform: translateY(-3px);
  transition: transform 0.15s ease, border-color 0.2s ease;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.12);
  color: #e0f2fe;
  font-weight: 600;
  font-size: 0.85rem;
}

.price-hint {
  color: #fde68a;
  font-weight: 600;
}

.tagline {
  color: #cbd5e1;
  font-weight: 600;
}

.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.07);
  background: var(--card);
  box-shadow: var(--shadow);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
}

thead {
  background: rgba(56, 189, 248, 0.08);
  color: #e0f2fe;
}

thead th {
  text-align: left;
  padding: 14px 16px;
  font-size: 0.95rem;
}

tbody td {
  padding: 14px 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: #cbd5e1;
}

.quiz {
  display: grid;
  gap: 16px;
  max-width: 680px;
  background: var(--card);
  padding: 18px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow);
}

.quiz__question span {
  display: block;
  font-weight: 700;
  margin-bottom: 6px;
  color: #e2e8f0;
}

.quiz__choices {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  color: #cbd5e1;
}

.quiz__choices--grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.quiz__choices label {
  background: rgba(255, 255, 255, 0.04);
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
}

.quiz__choices input[type='radio'] {
  margin-right: 8px;
}

.quiz__choices label:hover,
.quiz__choices input[type='radio']:focus-visible + label {
  border-color: rgba(56, 189, 248, 0.35);
}

.quiz__result {
  margin-top: 12px;
  padding: 16px;
  background: rgba(56, 189, 248, 0.08);
  border-radius: 12px;
  display: none;
}

.quiz__result.show {
  display: block;
}

.footer {
  padding: 32px clamp(20px, 4vw, 64px) 48px;
  background: #0a1020;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  align-items: start;
}

.footer__links {
  display: grid;
  gap: 6px;
}

.footer__links a {
  color: #cbd5e1;
  text-decoration: none;
}

.footer__links a:hover {
  color: var(--accent-2);
}

.footer__note {
  color: var(--subtle);
}

.stat-card {
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 12px 14px;
}

.stat-card__label {
  text-transform: uppercase;
  letter-spacing: 0.6px;
  font-weight: 700;
  color: #cbd5e1;
  margin: 0 0 6px;
}

.stat-card__value {
  font-size: 1.1rem;
  color: #e2e8f0;
  margin: 0;
}

.content p {
  color: #e5e7eb;
}

@media (max-width: 640px) {
  .hero {
    padding-top: 48px;
  }

  .hero__actions {
    flex-direction: column;
  }
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 6px;
  color: #cbd5e1;
}

.feature-list li::before {
  content: '•';
  color: var(--accent-2);
  margin-right: 8px;
}