:root {
  --bg: #091117;
  --bg-alt: #0f1a22;
  --panel: rgba(15, 26, 34, 0.88);
  --panel-strong: #111d26;
  --line: rgba(126, 158, 180, 0.24);
  --text: #edf6fb;
  --muted: #9fb4c3;
  --accent: #59c4ff;
  --accent-strong: #0090d8;
  --success: #5fd0a5;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(89, 196, 255, 0.18), transparent 32%),
    radial-gradient(circle at top right, rgba(95, 208, 165, 0.15), transparent 28%),
    linear-gradient(180deg, var(--bg) 0%, #05090d 100%);
  font-family: "Segoe UI", "Helvetica Neue", sans-serif;
}

code,
pre {
  font-family: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
}

.page-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 80px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.8fr);
  gap: 24px;
  align-items: stretch;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(145deg, rgba(10, 20, 28, 0.95), rgba(8, 14, 20, 0.84));
  box-shadow: var(--shadow);
}

.hero-brand {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 18px;
}

.hero-logo {
  width: clamp(96px, 14vw, 144px);
  height: auto;
  display: block;
  filter: drop-shadow(0 16px 30px rgba(0, 0, 0, 0.28));
}

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

.hero-brand-copy .eyebrow {
  margin-bottom: 8px;
}

.hero-brand-copy h1 {
  margin-bottom: 0;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

h1,
h2,
h3,
p,
ol,
ul,
figcaption {
  margin-top: 0;
}

h1 {
  font-size: clamp(2.8rem, 7vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
  margin-bottom: 18px;
}

h2 {
  font-size: clamp(1.7rem, 4vw, 2.5rem);
  margin-bottom: 0;
}

.lede,
.hero-points,
.hero-card,
.guide-card p,
.release-card p,
.note-card p,
figcaption {
  color: var(--muted);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

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

.button-primary {
  color: #071017;
  background: linear-gradient(135deg, var(--accent), #8ae2ff);
}

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

.hero-points {
  padding-left: 18px;
}

.hero-card,
.shot,
.guide-card,
.release-card,
.note-card {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 22px;
}

.hero-card-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.hero-card ol {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.7;
}

.section {
  margin-top: 32px;
}

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

.shot-grid,
.guide-grid,
.release-grid,
.note-grid,
.feature-split {
  display: grid;
  gap: 18px;
}

.shot-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.shot-wide {
  grid-column: 1 / -1;
}

.shot img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 18px 18px 0 0;
}

.shot figcaption {
  padding: 14px 16px 18px;
}

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

.feature-split,
.manual-step {
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  align-items: start;
}

.guide-card,
.note-card,
.release-card {
  padding: 20px;
}

.feature-copy,
.manual-copy {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 20px;
}

.feature-list,
.manual-list {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.7;
}

.manual-tip {
  margin-bottom: 0;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid rgba(89, 196, 255, 0.18);
  background: rgba(89, 196, 255, 0.08);
}

.manual-hero {
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.8fr);
}

.manual-media {
  margin: 0;
}

.release-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.release-card pre {
  overflow-x: auto;
  padding: 16px;
  border-radius: 16px;
  background: rgba(4, 8, 12, 0.9);
  border: 1px solid rgba(89, 196, 255, 0.12);
}

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

@media (max-width: 920px) {
  .hero,
  .shot-grid,
  .guide-grid,
  .release-grid,
  .note-grid,
  .feature-split,
  .manual-step {
    grid-template-columns: 1fr;
  }

  .page-shell {
    width: min(100% - 20px, 1180px);
    padding-top: 20px;
  }

  .hero {
    padding: 20px;
  }

  .hero-brand {
    align-items: flex-start;
  }
}