/* ============================================================
   Slotted for Android — beta distribution pages.

   Same "Coastal Professional" tokens as the web app
   (backend/web/app.css) and SlottedTheme.swift, but standalone:
   these pages are plain documents, not the SPA shell, so they
   carry their own copy rather than pulling the app stylesheet.
============================================================ */

:root {
  color-scheme: light;

  --primary: #002645;
  --primary-container: #1A3C5E;
  --on-primary: #FFFFFF;
  --secondary-container: #EADFC3;
  --on-secondary-container: #69624C;

  --surface: #F8F9FA;
  --surface-lowest: #FFFFFF;
  --surface-low: #F3F4F5;
  --surface-container: #EDEEEF;
  --surface-high: #E7E8E9;
  --surface-highest: #E1E3E4;
  --on-surface: #191C1D;
  --on-surface-variant: #43474E;
  --outline-variant: #C3C6CF;

  --accent: #00B5CC;
  --accent-text: #007A8A;
  --on-accent: #FFFFFF;
  --surf-teal: #00707F;

  --epic: #6633CC;
  --good: #16A34A;
  --fair: #CA8A04;
  --poor: #94A3B8;
  --danger: #DC2626;
  --warn: #D97706;

  --shadow-1: 0 1px 2px rgba(0, 38, 69, 0.06), 0 4px 16px rgba(0, 38, 69, 0.06);
  --shadow-2: 0 8px 30px rgba(0, 38, 69, 0.14);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --topbar-h: 56px;
  --wrap: 1120px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --primary: #A9C9F2;
    --primary-container: #28496B;
    --on-primary: #002645;
    --secondary-container: #4D4632;
    --on-secondary-container: #D0C6AB;

    --surface: #0F1213;
    --surface-lowest: #212528;
    --surface-low: #171A1C;
    --surface-container: #1B1F21;
    --surface-high: #282C2F;
    --surface-highest: #33383B;
    --on-surface: #E2E4E5;
    --on-surface-variant: #C3C6CF;
    --outline-variant: #43474E;

    --accent: #44D8F1;
    --accent-text: #44D8F1;
    --on-accent: #002645;

    --epic: #A78BFA;
    --good: #4ADE80;
    --fair: #FACC15;
    --poor: #64748B;
    --danger: #F87171;
    --warn: #FBBF24;

    --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.3), 0 4px 16px rgba(0, 0, 0, 0.25);
    --shadow-2: 0 8px 30px rgba(0, 0, 0, 0.5);
  }
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--surface);
  color: var(--on-surface);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
h1, h2, h3, h4 { margin: 0; line-height: 1.18; letter-spacing: -0.02em; }
h1 { font-size: clamp(26px, 4vw, 34px); font-weight: 800; }
h2 { font-size: 20px; font-weight: 700; }
h3 { font-size: 16px; font-weight: 700; }
p { margin: 0; }
ul, ol { margin: 0; }
a { color: var(--accent-text); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
code, .mono { font-family: var(--mono); font-size: 0.86em; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
[hidden] { display: none !important; }
.muted { color: var(--on-surface-variant); }
.small { font-size: 13px; }
.tiny { font-size: 12px; }
.skip-link { position: absolute; left: -999px; top: 8px; background: var(--surface-lowest); padding: 8px 12px; z-index: 100; border-radius: 8px; }
.skip-link:focus { left: 8px; }

/* ---------- chrome ---------- */
.topbar {
  position: sticky; top: 0; z-index: 40; height: var(--topbar-h);
  display: flex; align-items: center; gap: 14px; padding: 0 20px;
  background: color-mix(in srgb, var(--surface) 84%, transparent);
  -webkit-backdrop-filter: saturate(160%) blur(14px); backdrop-filter: saturate(160%) blur(14px);
}
.topbar::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--outline-variant), transparent); opacity: .6;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--primary); font-weight: 800; font-size: 18px; letter-spacing: -0.02em; }
.brand:hover { text-decoration: none; }
.brand-mark { width: 26px; height: 26px; }
.topbar-spacer { flex: 1; }
.topbar nav { display: flex; align-items: center; gap: 4px; }
.topbar nav a {
  padding: 7px 12px; border-radius: var(--radius-pill); font-size: 14px; font-weight: 600;
  color: var(--on-surface-variant);
}
.topbar nav a:hover { background: var(--surface-container); text-decoration: none; color: var(--on-surface); }
.topbar nav a[aria-current="page"] { background: var(--surface-container); color: var(--on-surface); }
@media (max-width: 640px) { .topbar nav a.hide-sm { display: none; } }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 28px 20px 72px; }

/* ---------- app header ---------- */
.app-header {
  display: flex; align-items: center; gap: 22px; flex-wrap: wrap;
  background: var(--surface-lowest); border-radius: 22px; padding: 22px 24px;
  box-shadow: var(--shadow-1);
}
.app-header-icon { width: 84px; height: 84px; border-radius: 20px; flex: 0 0 auto; box-shadow: var(--shadow-1); }
.app-header-meta { flex: 1 1 280px; min-width: 0; }
.app-header-meta h1 { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.app-header-sub { margin-top: 6px; color: var(--on-surface-variant); font-size: 14.5px; }
.app-header-action { flex: 0 0 auto; display: flex; flex-direction: column; align-items: stretch; gap: 6px; min-width: 190px; }
.app-header-action .hint { font-family: var(--mono); font-size: 12px; color: var(--on-surface-variant); text-align: center; }

.pill {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  border-radius: var(--radius-pill); padding: 4px 10px; white-space: nowrap;
}
.pill-beta { background: color-mix(in srgb, var(--accent) 16%, transparent); color: var(--accent-text); }
.pill-muted { background: var(--surface-container); color: var(--on-surface-variant); }
.pill-ok { background: color-mix(in srgb, var(--good) 16%, transparent); color: var(--good); }
.pill-warn { background: color-mix(in srgb, var(--warn) 18%, transparent); color: var(--warn); }
.pill-bad { background: color-mix(in srgb, var(--danger) 16%, transparent); color: var(--danger); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: var(--radius-pill); border: 0;
  background: var(--accent); color: var(--on-accent);
  font-size: 15px; font-weight: 700; letter-spacing: -0.01em;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: 0 8px 22px color-mix(in srgb, var(--accent) 34%, transparent); }
.btn:active { transform: none; }
.btn-secondary { background: var(--surface-container); color: var(--on-surface); }
.btn-secondary:hover { background: var(--surface-high); box-shadow: var(--shadow-1); }
.btn[aria-disabled="true"], .btn.is-disabled {
  background: var(--surface-container); color: var(--on-surface-variant);
  pointer-events: none; box-shadow: none; transform: none;
}
.btn-sm { padding: 7px 14px; font-size: 13.5px; }

/* ---------- panels ---------- */
.panel { background: var(--surface-lowest); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow-1); }
.panel > h2, .panel > h3 { margin-bottom: 12px; }
.panel p + p { margin-top: 10px; }
.panel p { color: var(--on-surface-variant); }
.section-heading {
  display: flex; align-items: center; gap: 12px;
  font-size: 12px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--on-surface-variant); margin: 34px 0 14px;
}
.section-heading::after { content: ""; flex: 1; height: 1px; background: linear-gradient(90deg, var(--outline-variant), transparent); }

/* ---------- variant tabs ---------- */
.variant-tabs {
  display: flex; gap: 4px; margin: 22px 0 18px; padding: 5px;
  background: var(--surface-container); border-radius: 14px; width: fit-content; max-width: 100%;
  overflow-x: auto; scrollbar-width: none;
}
.variant-tabs::-webkit-scrollbar { display: none; }
.variant-tab {
  display: flex; align-items: center; gap: 8px; white-space: nowrap;
  padding: 9px 16px; border: 0; border-radius: 10px; background: transparent;
  color: var(--on-surface-variant); font-size: 14px; font-weight: 600;
  transition: background .18s ease, color .18s ease;
}
.variant-tab:hover { color: var(--on-surface); }
.variant-tab.active { background: var(--surface-lowest); color: var(--on-surface); box-shadow: var(--shadow-1); }
.variant-tab .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--good); }

/* ---------- layout ---------- */
.beta-layout { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 18px; align-items: start; }
.beta-main, .beta-side { min-width: 0; }
.beta-main > * + *, .beta-side > * + * { margin-top: 18px; }
.beta-side { position: sticky; top: calc(var(--topbar-h) + 18px); }
@media (max-width: 900px) {
  .beta-layout { grid-template-columns: minmax(0, 1fr); }
  .beta-side { position: static; }
}

/* ---------- compatibility ---------- */
.compat { background: var(--surface-lowest); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow-1); }
.compat-verdict { display: flex; align-items: center; gap: 10px; margin: 12px 0 6px; }
.compat-dot { width: 11px; height: 11px; border-radius: 50%; flex: 0 0 auto; background: var(--poor); }
.compat-dot.ok { background: var(--good); box-shadow: 0 0 0 4px color-mix(in srgb, var(--good) 18%, transparent); }
.compat-dot.warn { background: var(--warn); box-shadow: 0 0 0 4px color-mix(in srgb, var(--warn) 18%, transparent); }
.compat-dot.bad { background: var(--danger); box-shadow: 0 0 0 4px color-mix(in srgb, var(--danger) 18%, transparent); }
.compat-dot.unknown { background: var(--poor); }
.compat-verdict-text { font-size: 17px; font-weight: 700; letter-spacing: -0.01em; }
.compat-detail { color: var(--on-surface-variant); font-size: 14px; }
.compat-facts { list-style: none; padding: 0; margin: 16px 0 0; }

/* ---------- key/value lists ---------- */
.spec-list { list-style: none; padding: 0; margin: 0; font-size: 13.5px; }
.spec-list li { display: flex; justify-content: space-between; align-items: baseline; gap: 14px; padding: 9px 0; }
.spec-list li + li { border-top: 1px solid var(--outline-variant); }
.spec-list .k { color: var(--on-surface-variant); white-space: nowrap; }
.spec-list .v { font-family: var(--mono); font-size: 12.5px; text-align: right; overflow-wrap: anywhere; }
.compat-facts li { display: flex; justify-content: space-between; gap: 14px; padding: 7px 0; font-size: 13px; }
.compat-facts li + li { border-top: 1px solid var(--outline-variant); }
.compat-facts .k { color: var(--on-surface-variant); }
.compat-facts .v { font-family: var(--mono); font-size: 12.5px; text-align: right; }

/* ---------- lists ---------- */
.test-list { list-style: none; padding: 0; margin: 0; }
.test-list li { position: relative; padding: 7px 0 7px 26px; color: var(--on-surface-variant); font-size: 14.5px; }
.test-list li::before {
  content: ""; position: absolute; left: 6px; top: 15px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
}
.install-steps { margin: 0; padding-left: 22px; }
.install-steps li { padding: 6px 0; color: var(--on-surface-variant); font-size: 14.5px; }
.install-steps li::marker { color: var(--accent-text); font-weight: 700; }
.note { margin-top: 14px; font-size: 13px; color: var(--on-surface-variant); }

/* ---------- screenshots ---------- */
.shot-strip { display: flex; gap: 14px; overflow-x: auto; padding: 4px 2px 14px; scroll-snap-type: x mandatory; }
.shot-strip::-webkit-scrollbar { height: 8px; }
.shot-strip::-webkit-scrollbar-thumb { background: var(--surface-highest); border-radius: 4px; }
.device-shot {
  height: 340px; width: auto; border-radius: 16px; flex: 0 0 auto; scroll-snap-align: start;
  box-shadow: var(--shadow-2); background: var(--surface-container);
}
.device-shot.wide { height: 220px; }
.shot-placeholder {
  height: 340px; width: 160px; flex: 0 0 auto; border-radius: 16px;
  background: var(--surface-container); color: var(--on-surface-variant);
  display: flex; align-items: center; justify-content: center; text-align: center;
  font-size: 12.5px; line-height: 1.5;
}
.shot-placeholder.wide { height: 220px; width: 380px; }
.shot-placeholder.square { height: 200px; width: 200px; border-radius: 100px; }

/* ---------- build history ---------- */
.build-row {
  display: flex; align-items: flex-start; gap: 16px;
  background: var(--surface-lowest); border-radius: var(--radius); padding: 16px 18px;
  box-shadow: var(--shadow-1);
}
.build-row + .build-row { margin-top: 10px; }
.build-row.superseded { background: var(--surface-low); box-shadow: none; }
.build-no {
  flex: 0 0 auto; min-width: 46px; height: 46px; padding: 0 8px; border-radius: 12px;
  background: var(--surface-container); color: var(--on-surface);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 15px; font-weight: 700;
}
.build-meta { flex: 1 1 auto; min-width: 0; }
.build-version { display: flex; align-items: center; gap: 8px; font-weight: 700; flex-wrap: wrap; }
.build-date { color: var(--on-surface-variant); font-size: 13px; margin-top: 2px; }
.build-row .test-list li { font-size: 13.5px; padding: 4px 0 4px 24px; }
.build-row .test-list li::before { top: 12px; width: 5px; height: 5px; }
.build-action { flex: 0 0 auto; align-self: center; }

/* ---------- empty state ---------- */
.empty-state { background: var(--surface-lowest); border-radius: var(--radius); padding: 40px 24px; text-align: center; box-shadow: var(--shadow-1); }
.empty-state .glyph {
  width: 56px; height: 56px; margin: 0 auto 14px; border-radius: 18px;
  background: var(--surface-container); color: var(--accent-text);
  display: flex; align-items: center; justify-content: center;
}
.empty-state p { color: var(--on-surface-variant); max-width: 46ch; margin: 8px auto 18px; font-size: 14.5px; }

/* ---------- landing page ---------- */
.hero { text-align: center; padding: 44px 0 12px; }
.hero .eyebrow {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 18px;
  font-size: 12px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent-text); background: color-mix(in srgb, var(--accent) 14%, transparent);
  border-radius: var(--radius-pill); padding: 6px 14px;
}
.hero h1 { max-width: 18ch; margin: 0 auto; }
.hero .lede { max-width: 60ch; margin: 16px auto 0; color: var(--on-surface-variant); font-size: 16.5px; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 26px; }

.device-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; }
.device-card { background: var(--surface-lowest); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow-1); }
.device-card .glyph {
  width: 44px; height: 44px; border-radius: 14px; margin-bottom: 14px;
  background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent-text);
  display: flex; align-items: center; justify-content: center;
}
.device-card h3 { margin-bottom: 6px; }
.device-card p { color: var(--on-surface-variant); font-size: 14px; }
.device-card .meta { margin-top: 12px; font-family: var(--mono); font-size: 12px; color: var(--on-surface-variant); }

.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.step { background: var(--surface-lowest); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow-1); }
.step-num {
  width: 30px; height: 30px; border-radius: 10px; margin-bottom: 12px;
  background: var(--accent); color: var(--on-accent);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 13px; font-weight: 700;
}
.step h3 { font-size: 15px; margin-bottom: 4px; }
.step p { color: var(--on-surface-variant); font-size: 13.5px; }

.faq-item { padding: 16px 0; }
.faq-item + .faq-item { border-top: 1px solid var(--outline-variant); }
.faq-item h3 { font-size: 15px; margin-bottom: 5px; }
.faq-item p { color: var(--on-surface-variant); font-size: 14px; }

pre.snippet {
  margin: 12px 0 0; padding: 14px 16px; border-radius: 12px; overflow-x: auto;
  background: var(--surface-container); color: var(--on-surface);
  font-family: var(--mono); font-size: 12.5px; line-height: 1.6;
}

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--outline-variant); padding: 28px 20px 44px; text-align: center; color: var(--on-surface-variant); font-size: 13px; }
footer p + p { margin-top: 8px; }
footer a { color: var(--accent-text); }