:root {
  --bg: #f4f6f5; --card: #ffffff; --ink: #14201d; --muted: #5b6b67; --line: #dfe5e3;
  --accent: #0f766e; --accent-ink: #ffffff; --accent-soft: #e3f3f1; --warn: #9a6700;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1514; --card: #18201f; --ink: #e7eeec; --muted: #9aaba7; --line: #2a3533;
    --accent: #2dd4bf; --accent-ink: #062320; --accent-soft: #14302d; --warn: #e3b341; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 560px; margin: 0 auto; padding: 24px 16px 40px; }
h1 { margin: 0; font-size: 28px; letter-spacing: -0.02em; }
.tag { margin: 4px 0 20px; color: var(--muted); }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.label { font-size: 14px; font-weight: 600; color: var(--muted); margin: 16px 0 8px; }
.label:first-child { margin-top: 0; }
.seg { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
button, select, input { font: inherit; color: inherit; }
.seg button { padding: 12px 6px; border: 1.5px solid var(--line); border-radius: 10px; background: transparent;
  font-weight: 700; font-size: 17px; cursor: pointer; display: flex; flex-direction: column; align-items: center; }
.seg button small { font-weight: 400; font-size: 12px; color: var(--muted); }
.seg button[aria-checked="true"] { border-color: var(--accent); background: var(--accent-soft); }
select, input { width: 100%; padding: 11px 12px; border: 1.5px solid var(--line); border-radius: 10px; background: var(--card); }
.primary { width: 100%; padding: 14px; border: 0; border-radius: 10px; background: var(--accent); color: var(--accent-ink);
  font-weight: 700; font-size: 17px; cursor: pointer; }
.primary:disabled { opacity: .6; cursor: wait; }
.pc { display: flex; gap: 8px; margin-top: 10px; }
.pc button { padding: 0 16px; border: 1.5px solid var(--line); border-radius: 10px; background: transparent; cursor: pointer; font-weight: 600; }
button:focus-visible, select:focus-visible, input:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
#status { color: var(--muted); min-height: 1.4em; margin: 16px 2px 8px; }
#status.error { color: var(--warn); }
.best { background: var(--card); border: 2px solid var(--accent); border-radius: 14px; padding: 16px; margin-bottom: 14px; }
.best .kicker { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; color: var(--accent); }
.best .price { font-size: 44px; font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; margin: 4px 0; }
.best .price span { font-size: 18px; font-weight: 600; color: var(--muted); }
.best .name { font-size: 18px; font-weight: 700; }
.meta { color: var(--muted); font-size: 14px; }
.save { margin-top: 8px; font-size: 14px; }
.dir { display: inline-block; margin-top: 12px; padding: 10px 14px; border-radius: 10px; background: var(--accent);
  color: var(--accent-ink); text-decoration: none; font-weight: 700; }
ol { list-style: none; padding: 0; margin: 0; background: var(--card); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
li { display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; padding: 12px 14px; border-top: 1px solid var(--line); }
li:first-child { border-top: 0; }
li .n { font-weight: 600; }
li .p { font-weight: 800; font-size: 18px; text-align: right; }
li .m, li .d { grid-column: 1 / -1; }
li a { color: var(--accent); }
.stale { color: var(--warn); }
.tagm { font-size: 12px; border: 1px solid var(--line); border-radius: 6px; padding: 0 5px; margin-left: 4px; color: var(--muted); }
footer { margin-top: 28px; font-size: 13px; color: var(--muted); }
footer a { color: inherit; }