:root {
  --bg: #0b1020; /* deep navy */
  --bg-2: #0f1530; /* slightly lighter */
  --ink: #eaf1ff; /* off-white */
  --muted: #9fb0d1; /* soft steel */
  --accent: #4cc2ff; /* cyan */
  --accent-2: #a78bfa; /* purple */
  --card: #0f1833; /* card bg */
  --border: rgba(255,255,255,.08);
  --radius: 18px;
  --shadow: 0 12px 40px rgba(0,0,0,.35);
}

* {
  box-sizing:border-box;
}

html,body {
  margin:0;
}

body {
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at -10% -30%, #16254f 0%, transparent 60%),
    radial-gradient(900px 500px at 120% 140%, #1a2b60 0%, transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  line-height: 1.7;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: clamp(16px, 3vw, 28px);
}

/* Hero */
header.hero {
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: clamp(18px, 3vw, 26px);
  align-items: center;
}

.eyebrow {
  color: var(--muted);
  letter-spacing:.08em;
  text-transform: uppercase;
  font-weight: 800;
  font-size: .8rem;
}

h1{
  font-weight: 800;
  font-size: clamp(28px, 5vw, 48px);
  margin: .3rem 0 .5rem;
}

.tagline {
  font-size: clamp(16px, 2.6vw, 22px);
  color: #d8e4ff;
  opacity: .95;
  margin: .2rem 0 1rem;
}

.cover {
  width: 100%;
  aspect-ratio: 2/3;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}


.cta-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: .5rem;
}

.btn {
  display: inline-block;
  border: 0;
  border-radius: 12px;
  padding: .9rem 1.2rem;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(0,0,0,.35);
}

.btn-primary {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #0a0f20;
}

.btn-secondary {
  background: #18224a;
  color: #e6eaff;
  border: 1px solid var(--border);
}

/* Sections */
section {
  margin-top: clamp(18px, 3vw, 28px);
}

.card {
  background: var(--card);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(14px,2.5vw,22px);
  box-shadow: var(--shadow);
}

.section-title {
  font-size: clamp(22px, 3.4vw, 32px);
  margin: 0 0 12px;
  font-weight:800;
}

ul {
  margin: .2rem 0 0 1.2rem;
}

/* TOC grid */
.toc {
  display:grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.toc .block {
  background: #111a3b;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
}

.toc h3{
  margin: .2rem 0 .5rem;
  font-size: 1.05rem;
}

.toc ol {
  margin:.2rem 0 0 1.1rem;
}


/* More stores */
details.more-stores {
  margin-top: 12px;
  background: #111a3b;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 10px;
}

details.more-stores summary {
  cursor: pointer;
  font-weight: 800;
}

.store-grid {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  margin-top: 10px;
}

.store-grid a {
  display: block;
  text-align: center;
  text-decoration: none;
  font-weight: 700;
  padding: 10px 12px;
  background: #0e1735;
  border-radius: 12px;
  border: 1px solid var(--border);
  color: #eaf1ff;
}


footer {
  opacity: .7;
  font-size: .95rem;
  margin-top: 20px;
}

@media (max-width: 880px) {
  header.hero {
    grid-template-columns: 1fr;
  }

  .cover {
    order:-1;
    max-width: 360px;
    justify-self: center;
  }
}