/* Wireframe：沿用 demo 的灰階＋三個狀態色（第一版不定美學） */
:root {
  --bg: #f4f4f2; --panel: #fff; --line: #d9d9d4; --text: #222; --muted: #6f6f68; --soft: #eeeeea;
  --ink: #222; --on-ink: #fff; --err: #c0392b;
  --ok-bg: #CDF4D3; --ok-line: #66D575; --warn-bg: #FFECBD; --warn-line: #FFC943; --bad-bg: #FFCDC2; --bad-line: #FF7556;
  --radius: 12px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #18181a; --panel: #222225; --line: #3a3a3e; --text: #ececea; --muted: #a2a29c; --soft: #2c2c30;
    --ink: #ececea; --on-ink: #18181a; --err: #ff8a7a;
    --ok-bg: #1f3a25; --ok-line: #4fb35f; --warn-bg: #3d3216; --warn-line: #d9a82e; --bad-bg: #452019; --bad-line: #e8664a;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body { background: var(--bg); color: var(--text); font: 16px/1.5 -apple-system, system-ui, sans-serif; -webkit-text-size-adjust: 100%; }
main { max-width: 480px; margin: 0 auto; padding: calc(env(safe-area-inset-top, 0px) + 20px) 16px calc(env(safe-area-inset-bottom, 0px) + 24px); display: flex; flex-direction: column; gap: 14px; }
h1 { font-size: 26px; margin: 0; }
h2 { font-size: 18px; margin: 0; }
p { margin: 0; }
.muted { color: var(--muted); font-size: 14px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; display: flex; flex-direction: column; gap: 8px; }
.card.ok { background: var(--ok-bg); border-color: var(--ok-line); }
.card.warn { background: var(--warn-bg); border-color: var(--warn-line); }
.card.bad { background: var(--bad-bg); border-color: var(--bad-line); }
.big { font-size: 22px; font-weight: 700; }
button, .btn { font: inherit; font-size: 17px; border: 1.5px solid var(--ink); background: var(--panel); color: var(--ink); border-radius: 12px; padding: 13px 16px; min-height: 48px; cursor: pointer; text-align: center; width: 100%; }
button.primary { background: var(--ink); color: var(--on-ink); }
button.ghost { border-color: var(--line); color: var(--muted); }
button:disabled { opacity: .5; }
button:focus-visible { outline: 3px solid var(--ok-line); outline-offset: 2px; }
.row { display: flex; gap: 10px; align-items: center; }
.error { color: var(--err); font-size: 15px; }
.weather { display: flex; gap: 14px; align-items: center; }
.temp { font-size: 40px; font-weight: 700; font-variant-numeric: tabular-nums; }
.moods { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; }
.moods button { font-size: 28px; padding: 10px 0; min-height: 56px; }
.moods button[aria-pressed="true"] { background: var(--ok-bg); border-color: var(--ok-line); }
.saved { color: var(--ok-line); font-weight: 700; }
select { font: inherit; font-size: 20px; padding: 10px; border-radius: 10px; border: 1.5px solid var(--line); background: var(--panel); color: var(--text); width: 100%; }
.steps { font-size: 13px; color: var(--muted); letter-spacing: .04em; }
table { width: 100%; border-collapse: collapse; font-size: 14px; font-variant-numeric: tabular-nums; }
th, td { text-align: left; padding: 8px 4px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 12px; }
.tablewrap { overflow-x: auto; }
.diag { font: 12px/1.5 ui-monospace, monospace; white-space: pre-wrap; overflow-wrap: anywhere; }
ol { margin: 0; padding-left: 22px; display: flex; flex-direction: column; gap: 6px; }