/* Shared stylesheet for every page. The palette follows the app, which only has
   a dark theme: a near-black dusk ground, warm gold for the primary accent and a
   twilight violet for the second one — the two colours of the icon's sky.

   Dark is therefore the base, and the single media query lightens things for
   people whose system asks for a light scheme. Mobile first: the layout rules
   target a phone and only widen further down. */

:root {
  --ink: #e8e6f0;
  --ink-soft: #a9a7be;
  --ink-faint: #8b8aa0;
  --ground: #12121a;
  --card: #1c1c28;
  --line: #2e2e42;

  --gold: #d9a441;
  --violet: #9b8ce0;
  --rose: #e2879b;

  /* Same hues at low alpha, for card fills, badges and the header wash. */
  --gold-tint: #d9a44124;
  --violet-tint: #9b8ce024;
  --rose-tint: #e2879b24;

  --shadow: 0 6px 24px rgb(0 0 0 / 0.45);
}

@media (prefers-color-scheme: light) {
  :root {
    --ink: #17161f;
    --ink-soft: #56546a;
    --ink-faint: #6d6b80;
    --ground: #f7f5fa;
    --card: #ffffff;
    --line: #e5e1ee;

    --gold: #8a6410;
    --violet: #5646a8;
    --rose: #b6304f;

    --gold-tint: #8a64101a;
    --violet-tint: #5646a81a;
    --rose-tint: #b6304f1a;

    --shadow: 0 6px 24px rgb(23 22 31 / 0.10);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0 18px 64px;
  background: var(--ground);
  color: var(--ink);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
  overflow-wrap: break-word;
}

img { max-width: 100%; }

.wrap { max-width: 680px; margin: 0 auto; }

/* Header — a tinted band, gold glow low and violet high, like the icon's sky */

header {
  position: relative;
  margin: 18px 0 8px;
  padding: 40px 20px 32px;
  text-align: center;
  border-radius: 24px;
  background:
    radial-gradient(60% 80% at 20% 0%, var(--violet-tint), transparent 70%),
    radial-gradient(60% 80% at 80% 0%, var(--violet-tint), transparent 70%),
    radial-gradient(80% 90% at 50% 110%, var(--gold-tint), transparent 70%);
}

header img {
  width: 84px;
  height: 84px;
  border-radius: 22px;
  box-shadow: var(--shadow);
}

h1 {
  margin: 18px 0 6px;
  font-size: clamp(28px, 8vw, 36px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  background: linear-gradient(100deg, var(--gold), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tagline {
  margin: 0;
  color: var(--ink-soft);
  font-size: clamp(16px, 4.4vw, 19px);
}

/* Section headings — a coloured bar alternating gold and violet */

h2 {
  position: relative;
  margin: 40px 0 12px;
  padding-left: 14px;
  font-size: clamp(20px, 5.4vw, 23px);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.16em;
  bottom: 0.16em;
  width: 5px;
  border-radius: 3px;
  background: var(--gold);
}

h2:nth-of-type(even)::before { background: var(--violet); }

h3 {
  margin: 26px 0 4px;
  font-size: 17px;
  color: var(--gold);
}

p { margin: 12px 0; }

a { color: var(--violet); }

hr {
  margin: 44px 0 0;
  border: 0;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--gold), var(--violet));
  opacity: 0.75;
}

/* Numbered walkthrough on the landing page */

.steps {
  list-style: none;
  margin: 18px 0;
  padding: 0;
  counter-reset: step;
}

.steps li {
  position: relative;
  counter-increment: step;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 5px solid var(--gold);
  border-radius: 14px;
  padding: 14px 16px 14px 56px;
  margin-bottom: 10px;
  box-shadow: var(--shadow);
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 14px;
  top: 15px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 14px;
  font-weight: 700;
  color: var(--gold);
  background: var(--gold-tint);
}

.steps li:nth-child(even) { border-left-color: var(--violet); }
.steps li:nth-child(even)::before { color: var(--violet); background: var(--violet-tint); }

.steps b { display: block; font-size: 17px; }
.steps li:nth-child(odd) b { color: var(--gold); }
.steps li:nth-child(even) b { color: var(--violet); }

.steps span { color: var(--ink-soft); font-size: 15px; }

/* The sound catalogue: one card per category, with how many recordings it holds */

.layers {
  list-style: none;
  display: grid;
  gap: 10px;
  margin: 18px 0;
  padding: 0;
  grid-template-columns: 1fr;
}

.layers li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 13px 16px;
  box-shadow: var(--shadow);
}

.layers b {
  color: var(--gold);
  font-size: 17px;
}

.layers li:nth-child(even) b { color: var(--violet); }

.layers .count {
  margin-left: auto;
  flex: none;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--gold-tint);
  color: var(--ink-soft);
  font-size: 13px;
  white-space: nowrap;
}

.layers li:nth-child(even) .count { background: var(--violet-tint); }

.layers span.what { color: var(--ink-soft); font-size: 15px; }

/* Plain bullet lists — coloured markers, alternating */

ul.plain { padding-left: 22px; }

ul.plain li { margin: 7px 0; }

ul.plain li::marker { color: var(--gold); font-size: 1.1em; }
ul.plain li:nth-child(even)::marker { color: var(--violet); }

/* Contact box */

.contact {
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 4px solid var(--gold);
  border-radius: 14px;
  padding: 16px 18px;
  margin: 20px 0;
  box-shadow: var(--shadow);
}

.contact p:first-child { margin-top: 0; }
.contact p:last-child { margin-bottom: 0; }
.contact a { font-weight: 600; }

/* Callout for the things a reader must not miss */

.notice {
  background: var(--rose-tint);
  border: 1px solid var(--line);
  border-left: 4px solid var(--rose);
  border-radius: 14px;
  padding: 16px 18px;
  margin: 20px 0;
}

.notice p:first-child { margin-top: 0; }
.notice p:last-child { margin-bottom: 0; }

/* Effective-date line under a policy heading */

.meta {
  display: inline-block;
  margin: 6px 0 0;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--gold-tint);
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.5;
}

/* Footer */

footer {
  margin-top: 22px;
  padding-top: 18px;
  color: var(--ink-faint);
  font-size: 15px;
  line-height: 2.2;
  text-align: center;
}

footer a {
  margin: 0 4px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--violet-tint);
  color: var(--violet);
  text-decoration: none;
  white-space: nowrap;
}

footer a:hover { text-decoration: underline; }

footer .copyright { margin-top: 16px; line-height: 1.6; }

/* Wider screens */

@media (min-width: 560px) {
  body { padding: 0 24px 72px; }
  header { padding: 52px 24px 40px; }
  header img { width: 96px; height: 96px; }
  .steps li { padding-right: 20px; }
  .layers { grid-template-columns: 1fr 1fr; }
}