:root {
  --bg: #f6f2ea;
  --surface: #ffffff;
  --text: #1f2937;
  --muted: #5b6472;
  --accent: #d97706;
  --accent-dark: #b45309;
  --border: #eadfcd;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top, rgba(217, 119, 6, 0.12), transparent 34%),
    linear-gradient(180deg, #fffaf2 0%, var(--bg) 100%);
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  padding: 72px 0 36px;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 24px;
  align-items: start;
}

.hero__content,
.hero__card,
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: 0 18px 50px rgba(31, 41, 55, 0.08);
}

.hero__content {
  padding: 40px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--accent-dark);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  line-height: 0.95;
  margin-bottom: 18px;
}

.lead {
  font-size: 1.35rem;
  line-height: 1.35;
  margin-bottom: 18px;
  color: var(--muted);
}

.text,
.hint,
.hero__card li,
.panel p,
.panel li {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--muted);
}

.button {
  display: inline-block;
  margin-top: 8px;
  padding: 16px 26px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #fff;
  font-weight: 700;
  box-shadow: 0 16px 30px rgba(180, 83, 9, 0.22);
}

.hint {
  margin-top: 16px;
}

.hero__card {
  padding: 30px;
  position: sticky;
  top: 20px;
}

.card__title {
  margin-bottom: 14px;
  font-weight: 700;
  color: var(--text);
}

.hero__card ul {
  margin: 0;
  padding-left: 18px;
}

.section {
  padding: 8px 0 64px;
}

.section__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.section__grid--single {
  grid-template-columns: 1fr;
}

.panel {
  padding: 28px;
}

.panel h2 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.panel ul {
  margin: 0;
  padding-left: 18px;
}

.panel li + li {
  margin-top: 8px;
}

.panel--wide {
  padding: 32px;
}

.code-word {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 999px;
  background: #fff7ed;
  color: var(--accent-dark);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.section--final {
  padding-bottom: 80px;
}

.panel--center {
  text-align: center;
}

.final-text {
  margin-bottom: 0;
  font-size: 1.15rem;
  line-height: 1.8;
}

@media (max-width: 860px) {
  .hero__grid,
  .section__grid {
    grid-template-columns: 1fr;
  }

  .hero__content,
  .hero__card,
  .panel {
    padding: 24px;
  }

  .hero {
    padding-top: 20px;
  }

  .hero__card {
    position: static;
  }
}