/* Buzzmaker Tools — 共用樣式
   版面概念：白底工作台，品牌紅只用在 Logo、主要按鈕與狀態重點，其餘交給深灰字與留白。 */
:root {
  --brand: #c10e1a;          /* Logo 紅 */
  --brand-ink: #a30b16;      /* 按鈕 hover */
  --brand-soft: #fbeceb;     /* 淡紅底 */
  --ink: #3a3636;            /* Logo「BUZZ」深灰 */
  --ink-2: #5f5959;          /* Logo「MAKER」灰 */
  --muted: #8a8282;
  --bg: #f7f5f4;
  --surface: #ffffff;
  --line: #e6e1df;
  --ok: #1f7a4d;
  --ok-soft: #e6f3ec;
  --warn: #9a6200;
  --warn-soft: #fbf1df;
  --err: #b42318;
  --err-soft: #fdeceb;

  --font-display: "Archivo", "Noto Sans TC", system-ui, sans-serif;
  --font-body: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;

  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --brand: #e0303b; --brand-ink: #f04a54; --brand-soft: #3a1d1f;
    --ink: #efeae8; --ink-2: #bdb5b3; --muted: #948b89;
    --bg: #181515; --surface: #221e1e; --line: #383232;
    --ok: #5cc28f; --ok-soft: #17301f; --warn: #e3ad4f; --warn-soft: #33281a;
    --err: #f2776c; --err-soft: #3a1b19;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --brand: #e0303b; --brand-ink: #f04a54; --brand-soft: #3a1d1f;
  --ink: #efeae8; --ink-2: #bdb5b3; --muted: #948b89;
  --bg: #181515; --surface: #221e1e; --line: #383232;
  --ok: #5cc28f; --ok-soft: #17301f; --warn: #e3ad4f; --warn-soft: #33281a;
  --err: #f2776c; --err-soft: #3a1b19;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; border-radius: 4px; }

.wrap { max-width: 1040px; margin: 0 auto; padding-inline: 20px; }

/* ── 頂部列 ─────────────────────── */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.topbar .wrap {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding-block: 14px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand picture { display: block; line-height: 0; }
.brand-logo { height: 38px; width: auto; display: block; }
.brand-tag {
  font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted);
  border-left: 1px solid var(--line); padding-left: 12px; margin-left: 2px;
  font-family: var(--font-display);
}
.back-link {
  font-size: 14px; color: var(--ink-2); text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px;
}
.back-link:hover { color: var(--brand); }

/* ── 共用元件 ─────────────────────── */
.eyebrow {
  font-family: var(--font-display); font-size: 12px; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase; color: var(--brand);
  margin: 0 0 6px;
}
h1, h2, h3 { text-wrap: balance; margin: 0; color: var(--ink); }

.btn {
  font: inherit; font-size: 14px; font-weight: 500;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 16px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--line); background: var(--surface); color: var(--ink);
  text-decoration: none; white-space: nowrap;
}
.btn:hover { border-color: var(--ink-2); }
.btn-primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-ink); border-color: var(--brand-ink); }
.btn[disabled] { opacity: .45; cursor: not-allowed; }

.site-footer {
  color: var(--muted); font-size: 13px;
  padding-block: 32px 40px;
}
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}