/* Radio Rumble landing + rules.
   Palette is taken from the reference vinyl mark: charcoal disc, gold label,
   warm paper ground. Deliberately edition-neutral - the apex belongs to no
   edition, so no Christmas red/green. */

:root {
  --ink: #17171c;
  --ink-soft: #33323b;
  --muted: #6b6975;
  --bg: #f4f2ef;
  --panel: #ffffff;
  --panel-alt: #faf8f5;
  --line: #e4e0d9;
  --gold: #c9a227;
  --gold-deep: #7d6317;
  --radius: 14px;
  --maxw: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--gold-deep);
}

/* ---------- header ---------- */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
}

.editions-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.editions-nav a,
.editions-nav .soon {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ink-soft);
  border: 1px solid transparent;
}

.editions-nav a:hover {
  background: var(--panel);
  border-color: var(--line);
  color: var(--ink);
}

.editions-nav .soon {
  color: var(--muted);
  cursor: default;
}

.editions-nav .soon img {
  opacity: 0.45;
}

/* ---------- hero ---------- */

.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 72px 24px 56px;
  display: grid;
  grid-template-columns: 210px 1fr;
  gap: 44px;
  align-items: center;
}

.hero img {
  width: 210px;
}

.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.hero p {
  margin: 0 0 28px;
  font-size: 1.12rem;
  color: var(--ink-soft);
  max-width: 54ch;
}

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

.btn {
  display: inline-block;
  padding: 13px 24px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.98rem;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--ink);
  color: #fff;
}

.btn-primary:hover {
  background: var(--ink-soft);
}

.btn-secondary {
  background: var(--panel);
  color: var(--ink);
  border-color: var(--line);
}

.btn-secondary:hover {
  border-color: var(--gold);
}

/* ---------- sections ---------- */

main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px 40px;
}

section {
  padding: 44px 0;
  border-top: 1px solid var(--line);
}

h2 {
  margin: 0 0 8px;
  font-size: 1.6rem;
  letter-spacing: -0.01em;
}

.section-lead {
  margin: 0 0 28px;
  color: var(--muted);
  max-width: 62ch;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 18px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}

.card strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1.05rem;
}

.card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.96rem;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  margin-bottom: 12px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--gold);
  font-weight: 700;
  font-size: 0.9rem;
}

/* ---------- edition cards ---------- */

.edition-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  background: var(--panel-alt);
}

.edition-card img {
  width: 72px;
}

.edition-card .btn {
  margin-top: auto;
  padding: 10px 20px;
}

.badge {
  margin-top: auto;
  display: inline-block;
  padding: 9px 18px;
  border-radius: 999px;
  background: var(--bg);
  border: 1px dashed var(--line);
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
}

/* ---------- footer ---------- */

footer {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 32px 24px 56px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

footer p {
  margin: 4px 0;
}

/* ---------- rules page ---------- */

.doc-body {
  max-width: 760px;
  padding-bottom: 60px;
}

.doc-back {
  padding-top: 28px;
  margin-bottom: 4px;
  font-size: 0.92rem;
}

.doc-body h1 {
  font-size: clamp(2rem, 5vw, 2.6rem);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.doc-body h2 {
  margin-top: 40px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.doc-body h3 {
  margin-top: 28px;
  font-size: 1.15rem;
}

.doc-body h4 {
  margin-top: 22px;
  font-size: 1rem;
  color: var(--ink-soft);
}

.doc-body li {
  margin: 6px 0;
}

.doc-body hr {
  margin: 40px 0 20px;
  border: 0;
  border-top: 1px solid var(--line);
}

.doc-body em {
  color: var(--muted);
}

@media (max-width: 720px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 44px;
    gap: 26px;
  }
  .hero img {
    width: 130px;
  }
  .site-header {
    gap: 12px;
  }
}