:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f0f2f5;
  --text: #16181d;
  --muted: #5d6573;
  --border: #dde1e7;
  --accent: #1a73e8;
  --accent-text: #ffffff;
  --accent-soft: #e8f0fe;
  --good: #137333;
  --good-soft: #e6f4ea;
  --okay: #8a5a00;
  --okay-soft: #fef7e0;
  --poor: #b3261e;
  --poor-soft: #fce8e6;
  --notice-bg: #fff8e1;
  --notice-border: #f2d07a;
  --radius: 12px;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.06), 0 2px 8px rgb(0 0 0 / 0.04);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111317;
    --surface: #1b1e24;
    --surface-2: #252932;
    --text: #e8eaed;
    --muted: #9aa0aa;
    --border: #333844;
    --accent: #8ab4f8;
    --accent-text: #0b1320;
    --accent-soft: #1f2d45;
    --good: #81c995;
    --good-soft: #1e3326;
    --okay: #fdd663;
    --okay-soft: #3a3220;
    --poor: #f28b82;
    --poor-soft: #3d2322;
    --notice-bg: #2f2a1a;
    --notice-border: #6b5a26;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Noto Sans Devanagari", sans-serif;
}

.wrap { max-width: 560px; margin: 0 auto; padding: 16px 16px 48px; }

header.biz { padding: 20px 0 12px; }
header.biz h1 { font-size: 1.4rem; line-height: 1.25; margin: 0 0 4px; }
header.biz p { margin: 0; color: var(--muted); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin: 12px 0;
}
.card h2 { font-size: 1rem; margin: 0 0 4px; }
.card .hint { color: var(--muted); font-size: 0.875rem; margin: 0 0 12px; }
.step { color: var(--muted); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.chip span {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-size: 0.9375rem;
  user-select: none;
}
.chip input:checked + span { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); font-weight: 600; }
.chip input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }

.aspect { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; padding: 10px 0; border-top: 1px solid var(--border); }
.aspect:first-of-type { border-top: 0; }
.aspect .name { font-weight: 500; }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: 999px; overflow: hidden; }
.seg label { position: relative; }
.seg input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.seg span { display: block; padding: 6px 12px; font-size: 0.875rem; border-left: 1px solid var(--border); user-select: none; }
.seg label:first-child span { border-left: 0; }
.seg input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: -2px; }
.seg input[value="good"]:checked + span { background: var(--good-soft); color: var(--good); font-weight: 600; }
.seg input[value="okay"]:checked + span { background: var(--okay-soft); color: var(--okay); font-weight: 600; }
.seg input[value="poor"]:checked + span { background: var(--poor-soft); color: var(--poor); font-weight: 600; }
.seg input[value=""]:checked + span { background: var(--surface-2); color: var(--muted); }

textarea, select, input[type="text"], input[type="url"], input[type="number"] {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
}
textarea { resize: vertical; min-height: 110px; }
textarea:focus, select:focus, input:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
.counter { text-align: right; color: var(--muted); font-size: 0.8125rem; margin-top: 4px; }

.check { display: flex; gap: 10px; align-items: flex-start; margin-top: 12px; font-size: 0.9375rem; }
.check input { width: 20px; height: 20px; margin: 2px 0 0; flex: none; accent-color: var(--accent); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 10px 16px;
  font: inherit; font-weight: 600; text-decoration: none;
  border-radius: 10px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); cursor: pointer;
}
.btn:disabled, .btn[aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; pointer-events: none; }
.btn.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.btn.block { width: 100%; }
.btn.small { min-height: 38px; padding: 6px 12px; font-size: 0.875rem; font-weight: 500; }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.toolbar { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.toolbar .translate { display: inline-flex; gap: 6px; }
.toolbar .translate select { width: auto; padding: 6px 8px; min-height: 38px; }

.sticky-cta { position: sticky; bottom: 0; padding: 12px 0; background: linear-gradient(to top, var(--bg) 70%, transparent); }

.notice { background: var(--notice-bg); border: 1px solid var(--notice-border); border-radius: 10px; padding: 12px; font-size: 0.875rem; }
.alert { border-radius: 10px; padding: 12px; font-size: 0.9375rem; }
.alert.error { background: var(--poor-soft); color: var(--poor); }
.alert.info { background: var(--accent-soft); color: var(--text); }
.alert .btn { margin-top: 8px; }

.variants { display: grid; gap: 10px; border: 0; padding: 0 4px 0 0; margin: 0 0 12px; max-height: 26rem; overflow-y: auto; overscroll-behavior: contain; }
.variant { display: block; position: relative; border: 1px solid var(--border); border-radius: 10px; padding: 12px; cursor: pointer; background: var(--surface); }
.variant input { position: absolute; opacity: 0; }
.variant .label { display: block; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); margin-bottom: 4px; }
.variant:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.variant:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: 2px; }

.loading { display: flex; align-items: center; gap: 12px; padding: 16px 0; color: var(--muted); }
.spinner { width: 22px; height: 22px; border-radius: 50%; border: 3px solid var(--border); border-top-color: var(--accent); animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 2.4s; } }

.reminder { color: var(--muted); font-size: 0.875rem; margin: 8px 0 0; }
.muted { color: var(--muted); }
.center { text-align: center; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 999px; font-size: 0.9375rem; }
[hidden] { display: none !important; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
footer.foot { color: var(--muted); font-size: 0.8125rem; text-align: center; margin-top: 24px; }