:root {
  color-scheme: dark;
  --bg: #07111f;
  --panel: rgba(11, 26, 45, 0.74);
  --panel-border: rgba(126, 199, 255, 0.14);
  --text: #edf5ff;
  --muted: #9fb4c7;
  --line: rgba(126, 199, 255, 0.16);
  --accent: #66baff;
  --accent-strong: #9fd3ff;
  --warning: #ffcf73;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(102, 186, 255, 0.16), transparent 32%),
    radial-gradient(circle at top right, rgba(133, 216, 183, 0.08), transparent 25%),
    linear-gradient(180deg, #091423 0%, var(--bg) 48%, #0b1422 100%);
}

a {
  color: var(--accent-strong);
}

.page-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 36px 0 80px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(320px, 0.95fr);
  gap: 28px;
  align-items: stretch;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
}

h1 {
  font-size: clamp(2.6rem, 5vw, 5.2rem);
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.6rem, 2.5vw, 2.4rem);
}

h3 {
  font-size: 1.05rem;
}

p {
  color: var(--muted);
  line-height: 1.75;
}

.hero-copy,
.hero-panel,
.glass-card {
  border: 1px solid var(--panel-border);
  background: var(--panel);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.hero-copy {
  border-radius: 30px;
  padding: 44px;
}

.lede {
  max-width: 650px;
  font-size: 1.08rem;
  margin: 22px 0 0;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.button-primary {
  background: linear-gradient(135deg, #5caef8 0%, #2f7fdd 100%);
  color: #061220;
}

.button-secondary {
  border: 1px solid var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}

.hero-panel {
  border-radius: 30px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.hero-panel-card {
  padding: 20px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.hero-metrics {
  display: grid;
  gap: 14px;
}

.metric {
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.metric-label {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  margin-bottom: 6px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.content-stack {
  display: grid;
  gap: 24px;
  margin-top: 26px;
}

.glass-card,
.section-block,
.checklist-block {
  border-radius: 28px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.feature-card,
.section-block,
.checklist-block {
  padding: 28px;
}

.example {
  color: var(--accent-strong);
}

.section-head {
  margin-bottom: 18px;
}

.rules-grid,
.report-grid,
.two-column,
.checklist-grid {
  display: grid;
  gap: 18px;
}

.rules-grid,
.two-column,
.report-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.rule-panel {
  padding: 22px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.rule-panel.warning {
  border-color: rgba(255, 207, 115, 0.24);
  background: rgba(255, 207, 115, 0.05);
}

.clean-list {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.75;
}

.note {
  color: var(--warning);
}

.checklist-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.check-item {
  padding: 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.check-item strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
}

.check-item span {
  color: var(--muted);
  line-height: 1.55;
}

@media (max-width: 980px) {
  .hero,
  .card-grid,
  .rules-grid,
  .two-column,
  .report-grid,
  .checklist-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 20px, 1200px);
    padding: 18px 0 40px;
  }

  .hero-copy,
  .hero-panel,
  .feature-card,
  .section-block,
  .checklist-block {
    padding: 22px;
    border-radius: 24px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }
}