/* Every text pair below is WCAG AAA (≥7:1) — see README for the list. */
:root {
  --night: #0B1D5C; --card: #132A73; --cobalt: #1E40AF; --amber: #FDE047; --white: #FFFFFF; --mist: #DBE4FF; --line-d: #3B5BC4;
  --paper: #F5F7FF; --ink: #1E293B; --ink-2: #334155; --cobalt-ink: #1E3A8A; --rust: #7C2D12; --line-l: #C7D2FE;
  --r: 24px;
}
* { box-sizing: border-box; }
html { font-size: 118.75%; scroll-behavior: smooth; } /* 19px base */
section[id], main { scroll-margin-top: 96px; }
body { margin: 0; background: var(--night); color: var(--white); font-family: -apple-system, "SF Pro Rounded", ui-rounded, system-ui, "Segoe UI", sans-serif; line-height: 1.6; }
img, svg { max-width: 100%; height: auto; }
.wrap { width: min(1180px, 100% - 2.5rem); margin: 0 auto; }
.narrow { width: min(820px, 100% - 2.5rem); }
a { color: inherit; text-underline-offset: .2em; }
:focus { outline: none; }
:focus-visible { outline: 4px solid var(--amber); outline-offset: 4px; border-radius: 8px; box-shadow: 0 0 0 8px var(--night); }
.light :focus-visible { outline-color: var(--cobalt-ink); box-shadow: 0 0 0 8px var(--paper); }

.skip { position: absolute; left: 1rem; top: -100px; z-index: 50; background: var(--amber); color: var(--night); padding: .8rem 1.2rem; border-radius: 12px; font-weight: 800; }
.skip:focus { top: 1rem; }

/* header */
.site-header { position: sticky; top: 0; z-index: 20; background: var(--night); border-bottom: 2px solid var(--line-d); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding: .7rem 0; }
.brand { display: flex; align-items: center; gap: .6rem; text-decoration: none; font-weight: 800; font-size: 1.35rem; letter-spacing: -.02em; }
.brand b { color: var(--amber); }
nav ul { display: flex; gap: .4rem 1.4rem; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; align-items: center; }
nav a { text-decoration: none; font-weight: 600; color: var(--mist); }
nav a:hover { color: var(--white); text-decoration: underline; }
.nav-cta { background: var(--amber); color: var(--night) !important; padding: .45rem 1rem; border-radius: 12px; }

/* hero */
.hero { padding: clamp(2.5rem, 6vw, 5rem) 0; background: radial-gradient(90% 80% at 75% 30%, var(--cobalt), var(--night) 70%); }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 3rem; align-items: center; }
.chip { display: inline-flex; align-items: center; gap: .6rem; margin: 0 0 1.4rem; padding: .4rem 1rem; border-radius: 999px; background: var(--night); border: 2px solid var(--line-d); font-weight: 600; color: var(--mist); }
.dot { width: .6rem; height: .6rem; border-radius: 50%; background: var(--amber); }
h1 { margin: 0; font-size: clamp(2.4rem, 5.6vw, 4.4rem); line-height: 1.04; letter-spacing: -.03em; font-weight: 850; }
.hl { color: var(--amber); }
.lede { font-size: 1.15rem; color: var(--mist); max-width: 34em; margin: 1.4rem 0 0; }
.cta { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 2rem; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 3.2rem; padding: .7rem 1.4rem; border-radius: 16px; font-weight: 800; text-decoration: none; font-size: 1rem; }
.primary { background: var(--amber); color: var(--night); }
.primary:hover { background: #FFF3B0; }
.ghost { border: 3px solid var(--mist); color: var(--white); }
.ghost:hover { background: var(--card); }
.big { font-size: 1.1rem; min-height: 3.6rem; padding: .8rem 1.8rem; }
.promises { list-style: none; padding: 0; margin: 2rem 0 0; display: flex; flex-wrap: wrap; gap: .6rem 1.6rem; color: var(--mist); }
.promises li::before, .checks li::before { content: "✓"; color: var(--amber); font-weight: 900; margin-right: .5rem; }
.scene { margin: 0; }
.scene-art { display: block; width: 100%; border-radius: 28px; box-shadow: 0 30px 60px -30px #000; }
.scene figcaption { margin-top: .8rem; color: var(--mist); font-size: .95rem; }

/* bands */
.band { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.light { background: var(--paper); color: var(--ink); }
.light.alt { background: var(--white); }
.dark { background: var(--night); }
.kicker { margin: 0 0 .6rem; text-transform: uppercase; letter-spacing: .12em; font-size: .85rem; font-weight: 800; color: var(--rust); }
.kicker.amber { color: var(--amber); }
h2 { margin: 0 0 1.8rem; font-size: clamp(1.9rem, 3.8vw, 2.9rem); line-height: 1.1; letter-spacing: -.025em; font-weight: 850; }
.light h2 { color: var(--cobalt-ink); }
h3 { margin: 0 0 .4rem; font-size: 1.2rem; }
.light h3 { color: var(--cobalt-ink); }
.light p, .light dd { color: var(--ink-2); }
.two { display: grid; grid-template-columns: .9fr 1.1fr; gap: 2.5rem; align-items: start; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.steps li, .features li { background: var(--white); border: 2px solid var(--line-l); border-radius: var(--r); padding: 1.6rem; }
.num { display: inline-grid; place-items: center; width: 2rem; height: 2rem; border-radius: 50%; background: var(--cobalt-ink); color: var(--white); font-size: 1rem; margin-right: .6rem; }
.steps p, .features p { margin: .4rem 0 0; }
.cues { margin-top: 2rem; background: var(--white); border: 2px solid var(--line-l); border-radius: var(--r); padding: 1.8rem; }
.cues dl { margin: 1rem 0 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem 2rem; }
.cues dt { font-weight: 800; color: var(--cobalt-ink); }
.cues dd { margin: .2rem 0 0; }
.note { margin: 1.4rem 0 0; }

.cards { display: grid; gap: 1.2rem; }
.card { background: var(--card); border: 2px solid var(--line-d); border-radius: var(--r); padding: 1.6rem; }
.card h3 { color: var(--amber); }
.card p { margin: .4rem 0 0; color: var(--mist); }

.features { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: .9rem; font-size: 1.15rem; }
.checks li { background: var(--card); border: 2px solid var(--line-d); border-radius: 18px; padding: 1rem 1.3rem; }

.safety { background: var(--white); border: 3px solid var(--cobalt-ink); border-left-width: 12px; border-radius: var(--r); padding: 2rem; }
.safety h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin-bottom: .8rem; }
.safety p { margin: 0; font-size: 1.1rem; }

details { border: 2px solid var(--line-l); border-radius: 18px; padding: 0; margin: 0 0 .9rem; background: var(--paper); }
summary { cursor: pointer; padding: 1.1rem 1.4rem; font-weight: 800; color: var(--cobalt-ink); list-style-position: inside; }
details p { margin: 0; padding: 0 1.4rem 1.2rem; }

.launch { padding: clamp(3.5rem, 8vw, 6rem) 0; text-align: center; background: radial-gradient(70% 90% at 50% 0%, var(--cobalt), var(--night) 75%); }
.launch-inner h2 { margin: 1rem 0 .6rem; }
.launch-inner p { color: var(--mist); margin: 0 0 1.4rem; }
.store { display: inline-block; padding: .5rem 1.1rem; border-radius: 12px; border: 2px solid var(--mist); font-weight: 700; }

.site-footer { background: var(--night); border-top: 2px solid var(--line-d); padding: 2.2rem 0 3rem; color: var(--mist); text-align: center; }
.site-footer p { margin: .4rem 0; }
.site-footer a { color: var(--white); }
.rwd { display: flex; align-items: center; justify-content: center; gap: .6rem; font-weight: 700; color: var(--white) !important; }

@media (max-width: 700px), (max-height: 500px) { .site-header { position: static; } section[id], main { scroll-margin-top: 0; } }
@media (max-width: 900px) {
  .hero-grid, .two { grid-template-columns: 1fr; }
  .steps, .features { grid-template-columns: 1fr; }
  .cues dl { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
@media (forced-colors: active) {
  .btn, .chip, .card, .steps li, .features li, details, .safety { border: 2px solid CanvasText; }
}