/* Icy Weasel — the app's own palette: glacier navy, ice, aurora on frost. */
:root {
  --frost: #eef5fa;
  --snow: #ffffff;
  --glacier: #0f2b46;
  --ink: #2a4560;
  --muted: #5b7690;
  --ice: #7dd4fc;
  --deep-ice: #1f6fae;
  --aurora: #8cf2e6;
  --rule: #d3e3ee;
  --display: "Bricolage Grotesque", "Avenir Next", system-ui, sans-serif;
  --body: "IBM Plex Sans", -apple-system, system-ui, sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --frost: #0b1f33;
    --snow: #10283f;
    --glacier: #e6f3fb;
    --ink: #c3d7e6;
    --muted: #8ca8bf;
    --deep-ice: #7dd4fc;
    --rule: #1d3a55;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--frost);
  color: var(--ink);
  font: 400 1.0625rem/1.6 var(--body);
}

img { max-width: 100%; display: block; }

a { color: var(--deep-ice); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible { outline: 3px solid var(--ice); outline-offset: 3px; border-radius: 4px; }

.wrap { width: min(1120px, 100% - 32px); margin-inline: auto; }
.measure { max-width: 66ch; }

/* Header */
.site-header { padding: 22px 0; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--glacier); text-decoration: none;
  font: 700 1.2rem/1 var(--display); }
.brand img { width: 34px; height: 34px; }
.site-nav { display: flex; gap: 22px; font-size: 0.95rem; }
.site-nav a { color: var(--ink); text-decoration: none; }
.site-nav a:hover { color: var(--deep-ice); }

/* Hero: the one loud thing. A huge, tight headline over the real app. */
.hero { padding: 56px 0 0; }
.hero h1 {
  margin: 0;
  color: var(--glacier);
  font: 700 clamp(2.6rem, 7.4vw, 6rem)/0.95 var(--display);
  font-stretch: 80%;
  letter-spacing: -0.025em;
  max-width: 14ch;
}
.hero .lede { margin: 28px 0 0; font-size: 1.2rem; max-width: 56ch; }

.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 18px; margin-top: 32px; }
.button {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px; border-radius: 999px;
  background: var(--glacier); color: var(--frost);
  font: 600 1rem/1 var(--body); text-decoration: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
}
.button:hover { background: var(--deep-ice); color: var(--snow); text-decoration: none; }
@media (prefers-color-scheme: dark) { .button:hover { color: #0b1f33; } }
.button svg { width: 18px; height: 18px; }
.quiet { color: var(--muted); font-size: 0.95rem; }

/* The screenshot sits on a pane of frosted ice that runs off the right edge. */
.showcase { position: relative; margin-top: 64px; padding: 0 0 80px; }
.showcase::before {
  content: ""; position: absolute; inset: 48px -10vw 0 8%;
  border-radius: 28px 0 0 28px;
  background:
    radial-gradient(60% 80% at 20% 10%, rgba(140, 242, 230, 0.55), transparent 70%),
    radial-gradient(70% 90% at 90% 30%, rgba(125, 212, 252, 0.6), transparent 70%),
    linear-gradient(160deg, #cfe8f7, #9ccbe8);
}
@media (prefers-color-scheme: dark) {
  .showcase::before {
    background:
      radial-gradient(60% 80% at 20% 10%, rgba(140, 242, 230, 0.18), transparent 70%),
      radial-gradient(70% 90% at 90% 30%, rgba(125, 212, 252, 0.22), transparent 70%),
      linear-gradient(160deg, #15385a, #0d2a45);
  }
}
.showcase img {
  position: relative; border-radius: 14px;
  box-shadow: 0 30px 70px -20px rgba(15, 43, 70, 0.55), 0 0 0 1px rgba(15, 43, 70, 0.08);
}

/* Sections */
section { padding: 72px 0; border-top: 1px solid var(--rule); }
h2 { margin: 0 0 12px; color: var(--glacier); font: 700 clamp(1.8rem, 3.6vw, 2.6rem)/1.1 var(--display);
  letter-spacing: -0.015em; }
h3 { margin: 0 0 4px; color: var(--glacier); font: 600 1.15rem/1.3 var(--display); }
p { margin: 0 0 1em; }

/* What it stops: a two-column definition list, not a card grid. */
.stops { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 34px 56px; margin: 40px 0 0; }
.stops div { padding-left: 18px; border-left: 3px solid var(--ice); }
.stops dt { color: var(--glacier); font: 600 1.15rem/1.3 var(--display); margin-bottom: 4px; }
.stops dd { margin: 0; }

/* The trade-off: the honest part, set as a plain table. */
.tradeoff table { width: 100%; max-width: 720px; border-collapse: collapse; margin: 28px 0 20px; font-size: 1rem; }
.tradeoff th, .tradeoff td { text-align: left; padding: 12px 14px 12px 0; border-bottom: 1px solid var(--rule); }
.tradeoff th { color: var(--glacier); font-weight: 600; }
.tradeoff td:last-child { font-variant-numeric: tabular-nums; }

.columns { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 28px 48px; margin-top: 32px; }
.columns ul { margin: 0; padding-left: 1.1em; }
.columns li { margin-bottom: 8px; }

/* Ermine note */
.ermine { display: grid; grid-template-columns: 96px 1fr; gap: 28px; align-items: center; }
.ermine img { width: 96px; height: 96px; }
@media (max-width: 560px) { .ermine { grid-template-columns: 1fr; } }

/* Download band */
.download { background: var(--glacier); color: #d6e8f5; border-top: 0; }
.download h2 { color: var(--snow); }
@media (prefers-color-scheme: dark) { .download { background: #071626; } .download h2 { color: #e6f3fb; } }
.download .button { background: var(--ice); color: #0b1f33; }
.download .button:hover { background: var(--aurora); color: #0b1f33; }
.download a:not(.button) { color: var(--ice); }
.download .quiet { color: #9fbdd3; }

/* Footer */
.site-footer { padding: 36px 0 56px; font-size: 0.95rem; color: var(--muted); }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 22px; }
.site-footer a { color: var(--muted); }

/* Policy pages */
.doc { padding: 40px 0 80px; }
.doc h1 { color: var(--glacier); font: 700 clamp(2.2rem, 5vw, 3.4rem)/1.05 var(--display); margin: 0 0 8px; letter-spacing: -0.02em; }
.doc h2 { font-size: 1.5rem; margin-top: 40px; }
.doc .updated { color: var(--muted); margin-bottom: 32px; }

@media (max-width: 640px) {
  .site-nav { gap: 14px; font-size: 0.9rem; }
  .hero { padding-top: 28px; }
  section { padding: 56px 0; }
  .showcase { margin-top: 44px; padding-bottom: 56px; }
  .showcase::before { inset: 28px -16px 0 12%; }
}

@media (prefers-reduced-motion: no-preference) {
  .showcase img { animation: settle 900ms cubic-bezier(.2, .7, .2, 1) both 150ms; }
  @keyframes settle { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }
}