:root {
  --bg: #0b0f14;
  --bg-2: #0f141b;
  --surface: #111821;
  --surface-2: #161f2a;
  --surface-3: #1a2431;
  --text: #edf1f5;
  --muted: #a8b2be;
  --line: rgba(255,255,255,0.09);
  --line-strong: rgba(255,255,255,0.16);
  --brand: #f3f5f7;
  --accent: #c9a96b;
  --accent-soft: rgba(201, 169, 107, 0.12);
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.36);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(201,169,107,0.08), transparent 26%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}

a { color: #f2d19a; }

.top-brand-bar {
  background: #ffffff;
  border-bottom: 1px solid rgba(0,0,0,0.08);
  padding: 10px 24px;
}

.top-brand-inner {
  max-width: 1160px;
  margin: 0 auto;
  display: flex;
  align-items: center;
}

.top-brand-logo {
  display: block;
  width: 150px;
  height: auto;
}

.hero {
  background:
    radial-gradient(circle at top left, rgba(201,169,107,0.12), transparent 28%),
    linear-gradient(180deg, #0a0e13 0%, #0f151d 100%);
  color: white;
  padding: 72px 24px 72px;
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  max-width: 1160px;
  margin: 0 auto;
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 420px);
  gap: 40px;
  align-items: center;
}

.hero-copy {
  min-width: 0;
}

.hero-visual-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-visual {
  width: 100%;
  max-width: 390px;
  height: auto;
  display: block;
  border-radius: 18px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.44);
}

.eyebrow,
.section-marker,
.toc-title {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.76rem;
  font-weight: 700;
}

.eyebrow {
  color: rgba(255,255,255,0.64);
  margin-bottom: 18px;
}

.hero-kicker {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.5;
}

.hero h1 {
  font-size: clamp(2.6rem, 5.5vw, 5.1rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
  margin: 0 0 18px;
  max-width: 980px;
  font-weight: 700;
}

.subtitle {
  max-width: 760px;
  font-size: 1.12rem;
  line-height: 1.82;
  color: rgba(255,255,255,0.8);
  margin: 0;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 999px;
  padding: 14px 20px;
  font-weight: 700;
  transition: 0.2s ease;
}

.button.primary {
  background: var(--brand);
  color: #0d1218;
}

.button.secondary {
  background: transparent;
  color: white;
  border: 1px solid var(--line-strong);
}

.page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 40px 24px 88px;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.toc {
  position: sticky;
  top: 18px;
}

.toc-card {
  background: rgba(17, 24, 33, 0.9);
  backdrop-filter: blur(12px);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
  padding: 20px;
}

.toc-title {
  color: var(--accent);
  margin-bottom: 14px;
}

.toc nav {
  display: grid;
  gap: 8px;
}

.toc a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.45;
  padding: 8px 10px;
  border-radius: 10px;
}

.toc a:hover {
  background: rgba(255,255,255,0.04);
  color: var(--text);
}

.content {
  display: grid;
  gap: 22px;
}

.section {
  background: linear-gradient(180deg, rgba(22,31,42,0.9) 0%, rgba(17,24,33,0.96) 100%);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 34px 34px 30px;
}

.section-marker {
  color: var(--accent);
  margin-bottom: 14px;
}

.section h2 {
  margin: 0 0 18px;
  font-size: clamp(1.7rem, 3vw, 2.45rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--brand);
}

.section h3 {
  margin: 24px 0 10px;
  font-size: 1.02rem;
  color: var(--brand);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.section p,
.section li,
.checklist label {
  font-size: 1rem;
  line-height: 1.86;
  color: #d9e0e7;
}

.section p { margin: 0 0 16px; }
.section ul { margin: 0 0 16px 0; padding-left: 22px; }

.callout {
  margin-top: 22px;
  border: 1px solid rgba(201,169,107,0.22);
  background: linear-gradient(180deg, rgba(201,169,107,0.08) 0%, rgba(201,169,107,0.04) 100%);
  border-radius: 18px;
  padding: 18px 18px 14px;
}

.callout strong {
  display: block;
  color: #f0d8a9;
  margin-bottom: 8px;
}

.callout p {
  margin: 0;
  color: #e2e7ed;
}

.highlight {
  text-align: center;
  background: linear-gradient(180deg, rgba(201,169,107,0.16) 0%, rgba(201,169,107,0.08) 100%);
}

.highlight strong { color: #f1ddb4; margin-bottom: 0; }

.checklist-section p { margin-bottom: 20px; }

.checklist {
  display: grid;
  gap: 14px;
}

.checklist label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,0.02);
}

.checklist input {
  margin-top: 5px;
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

.closing {
  background: linear-gradient(180deg, #0d1218 0%, #121922 100%);
}

.closing-card {
  margin-top: 20px;
  padding: 22px;
  border-radius: 18px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
}

@media (max-width: 980px) {
  .page {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero-visual {
    max-width: 340px;
  }
}

@media (max-width: 640px) {
  .top-brand-bar {
    padding: 10px 20px;
  }

  .top-brand-logo {
    width: 132px;
  }

  .hero {
    padding: 64px 20px 56px;
  }

  .page {
    padding: 24px 16px 72px;
  }

  .hero-visual {
    max-width: 300px;
  }

  .section {
    padding: 24px 20px 22px;
    border-radius: 20px;
  }

}
