:root {
  --bg: #0b1220;
  --bg-soft: #101a2e;
  --bg-card: #16223a;
  --ink: #e8edf6;
  --ink-dim: #9fb0c8;
  --ink-faint: #6b7d98;
  --accent: #f0b35e;
  --accent-soft: rgba(240, 179, 94, 0.12);
  --rain: #7fa8d9;
  --line: rgba(159, 176, 200, 0.16);
  --max: 72rem;
  --max-text: 44rem;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--rain); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; }

/* ---------- header ---------- */
header.site {
  position: sticky; top: 0; z-index: 10;
  background: rgba(11, 18, 32, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav {
  max-width: var(--max); margin: 0 auto;
  display: flex; align-items: center; gap: 1.5rem;
  padding: 0.9rem 1.5rem;
}
.brand {
  display: flex; align-items: center; gap: 0.6rem;
  font-weight: 700; font-size: 1.05rem; color: var(--ink);
  letter-spacing: 0.01em;
}
.brand:hover { text-decoration: none; }
.brand svg { display: block; }
.nav-links { margin-left: auto; display: flex; gap: 1.4rem; flex-wrap: wrap; }
.nav-links a { color: var(--ink-dim); font-size: 0.95rem; }
.nav-links a:hover { color: var(--ink); text-decoration: none; }
.nav-links a.active { color: var(--accent); }

/* ---------- hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: radial-gradient(ellipse 80% 60% at 50% -10%, #1b2c4d 0%, var(--bg) 65%);
  text-align: center;
  padding: 6rem 1.5rem 5rem;
}
.hero h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.6rem);
  line-height: 1.12; font-weight: 800; letter-spacing: -0.02em;
  max-width: 46rem; margin: 0 auto 1.2rem;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .sub {
  color: var(--ink-dim); font-size: 1.2rem;
  max-width: 38rem; margin: 0 auto 2.2rem;
}
.hero .badges {
  display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap;
  margin-bottom: 2.4rem;
}
.badge {
  border: 1px solid var(--line); border-radius: 999px;
  padding: 0.35rem 0.95rem; font-size: 0.85rem; color: var(--ink-dim);
  background: rgba(22, 34, 58, 0.6);
}
.cta-row { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 0.85rem 1.8rem; border-radius: 0.75rem;
  font-weight: 600; font-size: 1rem;
}
.btn-primary { background: var(--accent); color: #16110a; }
.btn-primary:hover { text-decoration: none; filter: brightness(1.08); }
.btn-ghost { border: 1px solid var(--line); color: var(--ink); }
.btn-ghost:hover { text-decoration: none; border-color: var(--ink-dim); }
.hero .store-note { margin-top: 1.1rem; font-size: 0.85rem; color: var(--ink-faint); }

/* rain lines in hero */
.rain-band { position: absolute; inset: 0; pointer-events: none; opacity: 0.5; }

/* ---------- sections ---------- */
section.block { padding: 4.5rem 1.5rem; }
section.block.alt { background: var(--bg-soft); }
.inner { max-width: var(--max); margin: 0 auto; }
.inner-text { max-width: var(--max-text); margin: 0 auto; }

.kicker {
  color: var(--accent); font-size: 0.82rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.14em; margin-bottom: 0.7rem;
}
h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem); font-weight: 750;
  letter-spacing: -0.015em; line-height: 1.2; margin-bottom: 1rem;
}
h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.5rem; }
.lede { color: var(--ink-dim); font-size: 1.08rem; margin-bottom: 1.4rem; }
p + p { margin-top: 1rem; }
.prose p { color: var(--ink-dim); }
.prose strong { color: var(--ink); }

/* ---------- cards / grids ---------- */
.grid { display: grid; gap: 1.25rem; margin-top: 2.5rem; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr)); }
.card {
  background: var(--bg-card); border: 1px solid var(--line);
  border-radius: 1rem; padding: 1.5rem;
}
.card .icon { font-size: 1.6rem; margin-bottom: 0.7rem; display: block; }
.card p { color: var(--ink-dim); font-size: 0.95rem; }
.card h3 { color: var(--ink); }

/* preset chips */
.presets { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.6rem; }
.preset {
  background: var(--accent-soft); border: 1px solid rgba(240, 179, 94, 0.3);
  color: var(--accent); border-radius: 999px; padding: 0.45rem 1.05rem;
  font-size: 0.9rem; font-weight: 600;
}

/* numbered steps */
.steps { counter-reset: step; display: grid; gap: 1.25rem; margin-top: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); }
.step { position: relative; padding: 1.5rem; background: var(--bg-card);
  border: 1px solid var(--line); border-radius: 1rem; }
.step::before {
  counter-increment: step; content: counter(step);
  display: inline-flex; align-items: center; justify-content: center;
  width: 2rem; height: 2rem; border-radius: 50%;
  background: var(--accent); color: #16110a; font-weight: 800;
  margin-bottom: 0.8rem;
}
.step p { color: var(--ink-dim); font-size: 0.95rem; }

/* FAQ */
details {
  border: 1px solid var(--line); border-radius: 0.75rem;
  background: var(--bg-card); margin-top: 0.85rem; padding: 1rem 1.25rem;
}
details summary {
  cursor: pointer; font-weight: 650; color: var(--ink);
  list-style: none; display: flex; justify-content: space-between; align-items: center;
}
details summary::after { content: "+"; color: var(--accent); font-size: 1.3rem; font-weight: 400; }
details[open] summary::after { content: "–"; }
details p { color: var(--ink-dim); margin-top: 0.7rem; font-size: 0.97rem; }

/* ---------- inner pages ---------- */
.page-head { padding: 4rem 1.5rem 2.5rem; background: radial-gradient(ellipse 70% 90% at 50% -30%, #1b2c4d 0%, var(--bg) 70%); }
.page-head h1 { font-size: clamp(1.9rem, 4.5vw, 2.8rem); font-weight: 800; letter-spacing: -0.02em; }
.page-head .sub { color: var(--ink-dim); margin-top: 0.6rem; font-size: 1.05rem; }
.page-body { padding: 2.5rem 1.5rem 5rem; }
.page-body h2 { font-size: 1.35rem; margin-top: 2.4rem; }
.page-body h3 { margin-top: 1.6rem; }
.page-body p, .page-body li { color: var(--ink-dim); }
.page-body ul, .page-body ol { padding-left: 1.4rem; margin-top: 0.7rem; }
.page-body li { margin-top: 0.4rem; }
.page-body .updated { font-size: 0.85rem; color: var(--ink-faint); margin-bottom: 1.5rem; }
.callout {
  border-left: 3px solid var(--accent); background: var(--accent-soft);
  border-radius: 0 0.6rem 0.6rem 0; padding: 1rem 1.25rem; margin: 1.5rem 0;
}
.callout p { color: var(--ink); }

/* contact */
.contact-cards { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); margin-top: 2rem; }
.contact-cards .card a { font-weight: 650; }

/* ---------- footer ---------- */
footer.site {
  border-top: 1px solid var(--line); background: var(--bg-soft);
  padding: 3rem 1.5rem;
}
.foot {
  max-width: var(--max); margin: 0 auto;
  display: flex; flex-wrap: wrap; gap: 2rem; justify-content: space-between; align-items: flex-start;
}
.foot .brand { font-size: 1rem; }
.foot-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.foot-links a { color: var(--ink-dim); font-size: 0.92rem; }
.foot .fine { width: 100%; color: var(--ink-faint); font-size: 0.82rem; margin-top: 0.5rem; }

@media (max-width: 40rem) {
  .hero { padding: 4rem 1.25rem 3.5rem; }
  section.block { padding: 3rem 1.25rem; }
}