/* Lyrasama main site. Light by default, dark when the system asks for it. */
:root {
  --bg: #f6f4ee; --surface: #ffffff; --line: #e2ddd0; --text: #1f1d2b; --muted: #5f5b6e;
  --accent: #4b3fd1; --accent-ink: #ffffff; --accent-soft: #ebe8ff; --star: #c98a12;
  --night: #1d1b3a; --night-line: #9d93ff; --danger: #b4233a;
  --radius: 14px; color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12111f; --surface: #1b1a2e; --line: #2e2c48; --text: #ecebf5; --muted: #a6a3bd;
    --accent: #a59cff; --accent-ink: #12111f; --accent-soft: #26234a; --star: #ffd27a;
    --night: #0c0b18; --danger: #ff8597; color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; display: flex; flex-direction: column; background: var(--bg);
  color: var(--text); font: 16px/1.65 system-ui, -apple-system, "Segoe UI", "PingFang SC",
    "Hiragino Sans", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
}
a { color: var(--accent); text-underline-offset: 3px; }
main { flex: 1; width: min(1120px, 100%); margin: 0 auto; padding: 8px 16px 56px; }
h1, h2, h3 { line-height: 1.3; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 8px; background: var(--surface); padding: 6px 12px; z-index: 9; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.bar {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px 16px;
  width: min(1120px, 100%); margin: 0 auto; padding: 14px 16px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; font-size: 19px; }
.brand small { font-weight: 500; color: var(--muted); font-size: 14px; margin-left: 1px; }
.brand img { border-radius: 8px; }
.bar nav { display: flex; flex-wrap: wrap; gap: 4px 16px; align-items: center; font-size: 15px; }
.bar nav a { color: var(--text); text-decoration: none; }
.bar nav a:hover { color: var(--accent); }
.inline { display: inline; margin: 0; }
button { font: inherit; cursor: pointer; }
.link { background: none; border: 0; color: var(--text); padding: 0; }
.link:hover { color: var(--accent); }

.btn {
  display: inline-block; padding: 9px 18px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--surface); color: var(--text); text-decoration: none; font-weight: 600; font-size: 15px;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { filter: brightness(1.08); color: var(--accent-ink); }
.btn.small { padding: 6px 14px; font-size: 14px; }
.btn { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; }
/* Touch screens: every link and button is at least 44px tall. */
@media (pointer: coarse), (max-width: 560px) {
  .bar nav a, .bar nav .link, .foot a, .crumbs a, .langs a { display: inline-flex; align-items: center; min-height: 44px; }
  .list a { display: inline-flex; align-items: center; min-height: 44px; }
  .kinds .choice { min-height: 44px; }
}
.btn.danger { border-color: var(--danger); color: var(--danger); background: transparent; }

.hero { display: grid; grid-template-columns: 1.35fr 1fr; gap: 32px; align-items: center; padding: 32px 0 16px; }
.eyebrow { margin: 0; color: var(--star); font-weight: 700; letter-spacing: .14em; font-size: 13px; }
.hero h1 { font-size: clamp(30px, 5vw, 46px); margin: 10px 0 14px; letter-spacing: -.01em; }
.lede { color: var(--muted); font-size: 17px; max-width: 34em; margin: 0 0 20px; }
.promise { list-style: none; padding: 0; margin: 0 0 24px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.promise li { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; }
.promise b { display: block; font-size: 17px; }
.promise span { color: var(--muted); font-size: 13px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; }

.lyra-card { background: var(--night); color: #ecebf5; border-radius: 22px; padding: 22px; position: relative; overflow: hidden; }
.lyra-card .sky { width: 100%; max-width: 260px; display: block; margin: 0 auto; }
.sky .lines path { fill: none; stroke: var(--night-line); stroke-width: 1.6; stroke-linejoin: round; opacity: .7; }
.sky .stars circle { fill: #fff; }
.sky .stars .vega { fill: #ffd27a; filter: drop-shadow(0 0 6px #ffd27a); }
.sky .stars .dust { opacity: .55; }
.say { margin: 8px 0 0; font-size: 15px; }
.say a { color: #c9c3ff; }

.shelf { margin-top: 44px; }
.shelf > h2 { font-size: 22px; margin: 0 0 16px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; display: flex; flex-direction: column; }
.card .tag { margin: 0; font-size: 12px; color: var(--muted); }
.card h3 { margin: 4px 0 2px; font-size: 20px; }
.card h3 a { color: var(--text); text-decoration: none; }
.card h3 a:hover { color: var(--accent); }
.tagline { margin: 0 0 8px; color: var(--accent); font-weight: 600; font-size: 15px; }
.uses { margin: 0 0 14px; padding-left: 18px; color: var(--muted); font-size: 14px; flex: 1; }
.card-actions { display: flex; gap: 8px; flex-wrap: wrap; margin: 0; }

.columns { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px 28px; }
.column h3 { font-size: 15px; color: var(--muted); margin: 0 0 6px; font-weight: 600; }
.list { list-style: none; margin: 0; padding: 0; }
.list li { padding: 8px 0; border-bottom: 1px solid var(--line); display: flex; flex-direction: column; }
.list a { font-weight: 600; text-decoration: none; }
.list span { color: var(--muted); font-size: 14px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.split h2 { font-size: 20px; margin: 0 0 8px; }
.muted, .hint { color: var(--muted); }
.hint { font-size: 14px; }

.panel { max-width: 460px; margin: 32px auto; padding: 24px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.panel.wide { max-width: 640px; }
.panel.prose { max-width: 760px; }
.panel h1 { margin-top: 0; font-size: 26px; }
.prose h2 { font-size: 18px; margin-top: 24px; }
form label { display: block; margin: 14px 0; color: var(--muted); font-size: 14px; }
input, select, textarea {
  display: block; width: 100%; margin-top: 6px; padding: 10px 12px; font: inherit; font-size: 16px;
  background: var(--bg); color: var(--text); border: 1px solid var(--line); border-radius: 10px;
}
input[type=radio] { display: inline; width: auto; margin: 0 4px 0 0; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
.kinds { border: 0; padding: 0; margin: 14px 0; color: var(--muted); font-size: 14px; }
.kinds .choice { display: inline-flex; align-items: center; margin: 6px 16px 0 0; color: var(--text); font-size: 15px; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.error { color: var(--danger); }

.foot { width: min(1120px, 100%); margin: 0 auto; padding: 20px 16px 28px; border-top: 1px solid var(--line);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 20px; color: var(--muted); font-size: 14px; }
.foot p { margin: 0; }
.foot nav { display: flex; flex-wrap: wrap; gap: 4px 16px; }
.langs a[aria-current] { color: var(--text); font-weight: 600; text-decoration: none; }
.uses-text { margin: 0 0 14px; color: var(--muted); font-size: 14px; flex: 1; }
.foot a { color: var(--muted); }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding-top: 16px; }
  .lyra-card { display: grid; grid-template-columns: 96px 1fr; gap: 14px; align-items: center; padding: 16px; }
  .lyra-card .sky { max-width: 96px; }
  .say { margin: 0; font-size: 14px; }
  .grid { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .promise { grid-template-columns: repeat(2, 1fr); }
  .grid { grid-template-columns: 1fr; }
  .hero-actions .btn { flex: 1; text-align: center; }
}
.install-card { display: grid; grid-template-columns: 64px 1fr auto; gap: 16px; align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; }
.install-card img { border-radius: 14px; }
.install-card h2 { font-size: 19px; margin: 0 0 4px; }
.install-card p { margin: 0; font-size: 14px; }
@media (max-width: 560px) { .install-card { grid-template-columns: 48px 1fr; } .install-card img { width: 48px; height: 48px; } .install-card .btn { grid-column: 1 / -1; } }
@media (pointer: coarse), (max-width: 560px) { .brand { min-height: 44px; } }