:root {
  --ink: #1C1B19;
  --bg: #F6F3EE;
  --muted: #5E5950;
  --accent: #C2502E;
  --accent-dark: #9E3F22;
  --line: #E2DCD2;
  --card: #FBFAF7;
  --on-dark-muted: #CFC9BF;
  --app: #3086CE;
  --app-tint: #DDEBF8;
  --display: 'Bricolage Grotesque', 'Helvetica Neue', Arial, sans-serif;
  --body: 'Instrument Sans', 'Helvetica Neue', Arial, sans-serif;
  --pad: clamp(24px, 5.5vw, 80px);
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--body); line-height: 1.55; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--accent); }
a:hover { color: var(--accent-dark); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { font-family: var(--display); font-weight: 700; margin: 0; }
p { margin: 0; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; background: var(--ink); color: var(--bg); padding: 10px 16px; z-index: 10; }
.wrap { max-width: 1440px; margin: 0 auto; padding: 0 var(--pad); }

/* Header */
.site-header { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: calc(env(safe-area-inset-top, 0px) + 20px) var(--pad) 20px; max-width: 1440px; margin: 0 auto; }
.site-header .logo img { height: clamp(26px, 2.4vw, 32px); width: auto; }
.sub-nav { display: flex; flex-wrap: wrap; gap: 4px 24px; font-size: 15px; }
.sub-nav a { color: var(--muted); text-decoration: none; padding: 10px 0; }
.sub-nav a:hover, .sub-nav a[aria-current="page"] { color: var(--ink); }
.sub-nav a[aria-current="page"] { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 6px; text-decoration-thickness: 2px; }
@media (max-width: 720px) { .site-header { flex-direction: column; align-items: flex-start; gap: 4px; } }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; min-height: 48px; padding: 0 24px; border-radius: 999px; background: var(--ink); color: var(--bg); text-decoration: none; font-size: 16px; font-weight: 500; }
.btn:hover { background: #33312D; color: var(--bg); }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.ghost:hover { border-color: var(--ink); }
.btn.soon { background: transparent; color: var(--muted); border: 1px dashed #C9C2B6; cursor: default; }

/* App hero */
.app-hero { display: grid; grid-template-columns: auto 1fr; gap: clamp(24px, 4vw, 56px); align-items: center; padding-top: clamp(40px, 7vw, 104px); padding-bottom: clamp(56px, 8vw, 112px); }
@media (max-width: 720px) { .app-hero { grid-template-columns: 1fr; } }
.app-icon { width: clamp(112px, 12vw, 168px); height: auto; aspect-ratio: 1; border-radius: 22.5%; box-shadow: 0 10px 30px rgba(28, 27, 25, 0.14); }
.app-hero .text { display: grid; gap: 20px; }
.app-hero h1 { font-size: clamp(56px, 8vw, 120px); line-height: 0.95; letter-spacing: -0.035em; }
.app-hero .tag { font-family: var(--display); font-weight: 600; font-size: clamp(22px, 2.2vw, 30px); letter-spacing: -0.01em; }
.app-hero .lede { max-width: 640px; font-size: clamp(17px, 1.5vw, 20px); color: var(--muted); }
.app-hero .actions { display: flex; flex-wrap: wrap; gap: 12px; padding-top: 4px; }

/* Features */
.block { border-top: 1px solid var(--line); padding-top: clamp(48px, 7vw, 96px); padding-bottom: clamp(48px, 7vw, 96px); }
.block > h2 { font-size: clamp(36px, 4vw, 56px); letter-spacing: -0.03em; line-height: 1; margin-bottom: clamp(28px, 3.5vw, 48px); }
.features { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 clamp(32px, 5vw, 80px); }
@media (max-width: 800px) { .features { grid-template-columns: 1fr; } }
.feature { padding: 24px 0; border-bottom: 1px solid var(--line); display: grid; gap: 8px; }
.feature h3 { font-size: 22px; letter-spacing: -0.015em; }
.feature p { color: var(--muted); max-width: 52ch; }
.band-note { background: var(--app-tint); border-radius: 20px; padding: clamp(28px, 4vw, 48px); display: grid; gap: 12px; max-width: 900px; }
.band-note h2 { font-size: clamp(28px, 3vw, 40px); letter-spacing: -0.025em; line-height: 1.05; }
.band-note p { color: var(--app-ink, #2E3B48); max-width: 62ch; }

/* Link list */
.doc-links { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.doc-links a { display: flex; justify-content: space-between; align-items: center; min-height: 64px; padding: 0 22px; border: 1px solid var(--line); border-radius: 14px; background: var(--card); color: var(--ink); text-decoration: none; font-weight: 500; }
.doc-links a:hover { border-color: var(--ink); color: var(--ink); }

/* Documents */
.doc { max-width: 760px; padding-top: clamp(32px, 6vw, 88px); padding-bottom: clamp(56px, 8vw, 112px); }
.doc-head { display: grid; gap: 16px; margin-bottom: clamp(32px, 4vw, 48px); }
.doc-head h1 { font-size: clamp(44px, 6vw, 80px); line-height: 1; letter-spacing: -0.035em; }
.doc-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; color: var(--muted); font-size: 15px; }
.lang { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 3px; }
.lang button { font: inherit; font-size: 14px; border: 0; background: transparent; color: var(--muted); min-height: 36px; min-width: 48px; padding: 0 12px; border-radius: 999px; cursor: pointer; }
.lang button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }
.doc .lede { font-size: clamp(18px, 1.5vw, 20px); color: var(--ink); margin-bottom: 8px; }
.doc section { padding: 28px 0; border-top: 1px solid var(--line); }
.doc h2 { font-size: 22px; letter-spacing: -0.01em; margin-bottom: 12px; }
.doc p + p, .doc p + ul, .doc ul + p { margin-top: 12px; }
.doc p, .doc li { color: #3F3B35; font-size: 17px; line-height: 1.65; }
.doc ul { margin: 0; padding-left: 22px; display: grid; gap: 8px; }
.doc ol { margin: 0; padding-left: 22px; display: grid; gap: 10px; }
.doc .pending { background: #FBEAD9; color: #6B3A12; padding: 2px 6px; border-radius: 4px; }
.callout { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 22px 24px; display: grid; gap: 8px; margin-top: 16px; }
.callout strong { font-family: var(--display); font-weight: 600; font-size: 18px; }

/* FAQ */
details { border-top: 1px solid var(--line); }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; list-style: none; padding: 22px 36px 22px 0; font-family: var(--display); font-weight: 600; font-size: 19px; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 4px; top: 18px; font-size: 26px; font-weight: 400; color: var(--muted); }
details[open] summary::after { content: "−"; }
details > div { padding: 0 0 24px; display: grid; gap: 12px; }
details p { color: #3F3B35; font-size: 17px; }

/* Footer */
.dark { background: var(--ink); color: var(--bg); }
.dark .wrap { padding-top: clamp(48px, 6vw, 80px); padding-bottom: calc(env(safe-area-inset-bottom, 0px) + 40px); display: grid; gap: 20px; }
.dark h2 { font-size: clamp(36px, 4.5vw, 64px); letter-spacing: -0.035em; line-height: 1; }
.dark h2 .dot { color: var(--accent); }
.dark p { color: var(--on-dark-muted); max-width: 560px; }
.dark .mail { justify-self: start; font-family: var(--display); font-weight: 600; font-size: clamp(22px, 2.2vw, 30px); color: var(--bg); text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 7px; text-decoration-thickness: 3px; }
.site-footer { margin-top: clamp(40px, 6vw, 80px); padding-top: 28px; border-top: 1px solid #3A3834; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 20px; font-size: 14px; color: var(--on-dark-muted); }
.site-footer img { height: 24px; width: auto; }
.site-footer .links { display: flex; flex-wrap: wrap; gap: 20px; align-items: center; }
.site-footer a { color: var(--on-dark-muted); }
.site-footer a:hover { color: var(--bg); }