/* StageScan 官網：深色舞台背景＋琥珀色重點（與 App 的 Theme 一致）。只有這一個樣式檔，沒有外部資源。 */
:root {
  color-scheme: dark;
  --bg: #0b0b10;
  --panel: #15151d;
  --rule: #26262f;
  --fg: #f2f2f7;
  --muted: #a1a1aa;
  --accent: #f59e26;
  --accent-2: #ff5a8a;
  --radius: 18px;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #faf9f7;
    --panel: #ffffff;
    --rule: #e7e5e4;
    --fg: #1c1917;
    --muted: #6b6560;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang TC", "Hiragino Sans", "Noto Sans TC", sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

.wrap { max-width: 980px; margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 720px; }

header.site {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--rule);
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; height: 56px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--fg); font-weight: 700; font-size: 17px; }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.brand:hover { text-decoration: none; }
nav.links { display: flex; gap: 18px; font-size: 14px; }
nav.links a { color: var(--muted); }
nav.links a[aria-current="page"], nav.links a:hover { color: var(--fg); text-decoration: none; }

.lang { display: flex; gap: 6px; flex-wrap: wrap; margin: 0 0 8px; }
.lang button {
  font: inherit; font-size: 13px; padding: 5px 12px; border-radius: 999px; cursor: pointer;
  background: transparent; color: var(--muted); border: 1px solid var(--rule);
}
.lang button[aria-pressed="true"] { color: var(--fg); border-color: var(--accent); }

.hero { position: relative; overflow: hidden; padding: 72px 0 56px; text-align: center; }
.hero::before {
  content: ""; position: absolute; inset: -40% -20% auto; height: 120%;
  background:
    radial-gradient(40% 50% at 30% 40%, color-mix(in srgb, var(--accent-2) 30%, transparent), transparent 70%),
    radial-gradient(35% 45% at 70% 35%, color-mix(in srgb, var(--accent) 28%, transparent), transparent 70%);
  filter: blur(20px); opacity: .55; pointer-events: none;
}
.hero > * { position: relative; }
.hero img.icon { width: 112px; height: 112px; border-radius: 26px; margin: 0 auto 24px; box-shadow: 0 18px 50px rgba(0, 0, 0, .45); }
.hero h1 { font-size: clamp(34px, 6vw, 56px); line-height: 1.08; margin: 0 0 14px; letter-spacing: -0.02em; }
.hero p.lead { font-size: clamp(17px, 2.4vw, 21px); color: var(--muted); max-width: 640px; margin: 0 auto 26px; }
.cta { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 999px; background: var(--accent); color: #111; font-weight: 700; }
.cta:hover { text-decoration: none; filter: brightness(1.06); }
.cta.soon { background: transparent; color: var(--fg); border: 1px solid var(--rule); font-weight: 600; }

section.block { padding: 40px 0; border-top: 1px solid var(--rule); }
section.block h2 { font-size: 26px; margin: 0 0 6px; letter-spacing: -0.01em; }
section.block p.sub { color: var(--muted); margin: 0 0 22px; }
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.card { background: var(--panel); border: 1px solid var(--rule); border-radius: var(--radius); padding: 18px; }
.card h3 { margin: 0 0 6px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.tag { display: inline-block; font-size: 12px; font-weight: 700; padding: 2px 8px; border-radius: 999px; background: color-mix(in srgb, var(--accent) 20%, transparent); color: var(--accent); margin-bottom: 8px; }

article.doc { padding: 40px 0 64px; }
article.doc h1 { font-size: 32px; margin: 0 0 4px; }
article.doc h2 { font-size: 20px; margin: 32px 0 8px; }
article.doc .muted { color: var(--muted); font-size: 14px; }
article.doc li { margin: 6px 0; }
details { background: var(--panel); border: 1px solid var(--rule); border-radius: 14px; padding: 12px 16px; margin: 10px 0; }
details summary { cursor: pointer; font-weight: 600; }
details p { color: var(--muted); margin: 8px 0 2px; }

footer.site { border-top: 1px solid var(--rule); padding: 28px 0 40px; color: var(--muted); font-size: 13px; }
footer.site .wrap { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
footer.site a { color: var(--muted); }

/* 語言：有 JS 時只顯示選到的語言；沒有 JS 時全部顯示。 */
html.js [data-lang]:not(.active) { display: none; }