:root {
  --bg: #f6f8f7; --card: #ffffff; --text: #0f172a; --muted: #5b6676; --line: #dfe7e3;
  --primary: #059669; --primary-dark: #047857; --on-primary: #ffffff;
  --warn-bg: #fff7e0; --warn-text: #7a5200; --danger: #b42318; --ok-bg: #e7f7ef;
  --radius: 14px; --tap: 46px;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0e1513; --card: #17211e; --text: #e8efec; --muted: #9db0a9; --line: #2a3a35;
          --warn-bg: #3a2e0f; --warn-text: #ffd987; --ok-bg: #12352a; --danger: #ff8f84; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text);
       font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
       padding-bottom: env(safe-area-inset-bottom); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.muted { color: var(--muted); margin: 0; }
h1, h2, h3 { margin: 0; line-height: 1.2; }
button { font: inherit; color: inherit; cursor: pointer; }
button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; }
[hidden] { display: none !important; }

#app { max-width: 720px; margin: 0 auto; padding: 0 14px 120px; }
.top { display: flex; align-items: center; gap: 12px; padding: 16px 2px 10px; }
.top h1 { font-size: 1.35rem; }
.logo { width: 52px; height: 52px; border-radius: 12px; object-fit: cover; background: var(--card); border: 1px solid var(--line); }

.tabs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; background: var(--card); border: 1px solid var(--line);
        border-radius: var(--radius); padding: 4px; position: sticky; top: 6px; z-index: 5; }
.tabs button { min-height: 42px; border: 0; background: transparent; border-radius: 10px; font-weight: 600; color: var(--muted); }
.tabs button[aria-selected="true"] { background: var(--primary); color: var(--on-primary); }

main { margin-top: 14px; }
input, textarea, select { font-family: inherit; }
input[type="search"], input[type="text"], input[type="number"], textarea, select {
  width: 100%; min-height: var(--tap); padding: 10px 12px; font-size: 16px; color: var(--text);
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
textarea { resize: vertical; min-height: 80px; }
label.field { display: block; font-weight: 600; margin: 12px 0 6px; }

.chips { display: flex; gap: 8px; overflow-x: auto; padding: 12px 0 6px; scrollbar-width: none; }
.chips::-webkit-scrollbar { display: none; }
.chip { flex: 0 0 auto; min-height: 40px; padding: 0 14px; border-radius: 999px; background: var(--card);
        border: 1px solid var(--line); font-weight: 600; }
.chip[aria-pressed="true"] { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }

.list { display: grid; gap: 10px; margin-top: 8px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; }
.item { display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; }
.item.has-img { grid-template-columns: 84px 1fr auto; }
.item img { width: 84px; height: 84px; border-radius: 12px; object-fit: cover; background: var(--bg); }
.item h3 { font-size: 1.02rem; }
.item .desc { color: var(--muted); font-size: .92rem; margin: 2px 0 0; }
.price { font-weight: 700; white-space: nowrap; }
.badge { display: inline-block; font-size: .75rem; font-weight: 700; padding: 1px 8px; border-radius: 999px;
         background: var(--ok-bg); color: var(--primary-dark); margin-right: 4px; }
@media (prefers-color-scheme: dark) { .badge { color: #7ee2b8; } }
.item .actions { display: flex; flex-direction: column; align-items: flex-end; justify-content: space-between; gap: 8px; }
.unavailable { opacity: .6; }

button.primary { background: var(--primary); color: var(--on-primary); border: 0; border-radius: 12px; min-height: var(--tap);
                 padding: 0 18px; font-weight: 700; }
button.primary:disabled { opacity: .55; cursor: not-allowed; }
button.primary.wide { width: 100%; }
button.secondary { background: var(--card); border: 1px solid var(--line); border-radius: 12px; min-height: var(--tap); padding: 0 14px; font-weight: 600; }
button.link { background: none; border: 0; color: var(--primary); text-decoration: underline; padding: 6px 0; min-height: 36px; }
button.icon { background: var(--bg); border: 1px solid var(--line); border-radius: 50%; width: 40px; height: 40px; }
.stepper { display: inline-flex; align-items: center; background: var(--bg); border: 1px solid var(--line); border-radius: 12px; }
.stepper button { width: 44px; height: 44px; border: 0; background: transparent; font-size: 1.25rem; font-weight: 700; }
.stepper span { min-width: 28px; text-align: center; font-weight: 700; }

.cart-bar { position: fixed; left: 0; right: 0; bottom: 0; padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
            background: linear-gradient(to top, var(--bg) 70%, transparent); z-index: 6; }
.cart-bar button { max-width: 692px; margin: 0 auto; display: block; box-shadow: 0 6px 18px rgba(0, 0, 0, .18); }

.sheet { position: fixed; inset: 0; background: rgba(0, 0, 0, .5); z-index: 20; display: flex; align-items: flex-end; justify-content: center; }
.sheet-card { background: var(--bg); width: 100%; max-width: 720px; max-height: 92vh; overflow-y: auto;
              border-radius: 20px 20px 0 0; padding: 16px 14px calc(18px + env(safe-area-inset-bottom)); }
.sheet-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.line { display: grid; grid-template-columns: 1fr auto; gap: 6px 10px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line); }
.line:last-of-type { border-bottom: 0; }
.line .note { grid-column: 1 / -1; }
.line .note input { min-height: 40px; font-size: 15px; }
.total { display: flex; justify-content: space-between; font-size: 1.15rem; font-weight: 800; padding: 12px 0; }
.notice { background: var(--warn-bg); color: var(--warn-text); border-radius: 12px; padding: 10px 12px; margin: 10px 0; }
.notice.ok { background: var(--ok-bg); color: var(--text); }
.error { color: var(--danger); font-weight: 600; margin: 8px 0; }

.steps { display: flex; gap: 4px; margin: 10px 0 4px; }
.steps i { flex: 1; height: 6px; border-radius: 4px; background: var(--line); }
.steps i.done { background: var(--primary); }
.order-head { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; }
.status { font-weight: 700; }
.status.cancelled { color: var(--danger); }
ul.plain { list-style: none; margin: 6px 0 0; padding: 0; }
ul.plain li { display: flex; justify-content: space-between; gap: 10px; padding: 3px 0; }

.help-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.help-grid button { min-height: 64px; border-radius: var(--radius); background: var(--card); border: 1px solid var(--line); font-weight: 700; }
.section-title { margin: 18px 0 8px; font-size: 1.05rem; }
.row { display: flex; gap: 10px; }
.row > * { flex: 1; }
.toast { position: fixed; left: 50%; bottom: 92px; transform: translateX(-50%); background: #111c18; color: #fff; padding: 10px 16px;
         border-radius: 12px; z-index: 30; max-width: 90vw; opacity: 0; pointer-events: none; transition: opacity .2s; }
.toast.show { opacity: 1; }
.fatal-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.fatal { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; max-width: 420px; text-align: center; }
.fatal h1 { font-size: 1.3rem; margin-bottom: 8px; }
.small { font-size: .85rem; color: var(--muted); }
@media (prefers-reduced-motion: reduce) { .toast { transition: none; } }