:root{--bg: #f4f5f7;--fg: #15171a;--muted: #6b7280;--card: #ffffff;--accent: #1f6feb;--error: #c62828;color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--bg: #111317;--fg: #eceef1;--muted: #9aa1ab;--card: #1b1e24;--accent: #4c8dff;--error: #ef6a6a}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.page{max-width:480px;margin:0 auto;padding:16px}h1{font-size:22px;margin:8px 0}h2{font-size:18px;margin:0 0 8px}.muted{color:var(--muted)}.center{text-align:center;padding-top:30vh}.error{color:var(--error)}.btn{display:block;width:100%;margin-top:12px;padding:14px;border:0;border-radius:12px;background:var(--accent);color:#fff;font-size:16px;font-weight:600}.btn.secondary{background:transparent;color:var(--accent)}.btn:disabled{opacity:.6}.form label{display:block;margin-top:12px;color:var(--muted);font-size:14px}.form input{display:block;width:100%;margin-top:4px;padding:12px;border:1px solid #d0d4da;border-radius:10px;font-size:16px;background:var(--card);color:var(--fg)}.card{background:#fff;color:#15171a;border-radius:16px;padding:16px;text-align:center}.flip{perspective:1200px}.flip-inner{display:grid;transition:transform .5s;transform-style:preserve-3d}.flip.flipped .flip-inner{transform:rotateY(180deg)}.face{grid-area:1 / 1;backface-visibility:hidden;-webkit-backface-visibility:hidden;box-shadow:0 6px 20px #0000001f}.face.back{transform:rotateY(180deg);display:flex;flex-direction:column;justify-content:center;gap:12px;text-align:left}.face.designed{color:#fff}.card-logo{max-height:36px;max-width:55%;object-fit:contain}.card-kind{font-weight:600}.status-pill{padding:3px 10px;border-radius:999px;background:#7f7f7f2e;font-size:13px;font-weight:600}.owner{text-align:left;font-size:18px;font-weight:600;margin:4px 0 12px}.code-panel{background:#fff;color:#15171a;border-radius:12px;padding:8px 6px 6px}.face.designed .hint{color:inherit;opacity:.8}.back-text{white-space:pre-line;margin:0;font-size:15px;line-height:1.5}.flip-btn{margin-top:4px;padding:10px}.balance-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:12px 0 4px}.tile{background:var(--card);border-radius:14px;padding:14px;text-align:center}.tile-value{font-size:30px;font-weight:700;line-height:1.2}.center-text{text-align:center}.form select{display:block;width:100%;margin-top:4px;padding:12px;border:1px solid #d0d4da;border-radius:10px;font-size:16px;background:var(--card);color:var(--fg)}.card-head{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:14px;margin-bottom:8px;min-height:36px}.barcode{width:100%;height:auto;image-rendering:pixelated}.digits{font:600 26px/1.2 ui-monospace,Menlo,monospace;letter-spacing:2px;margin-top:6px}.digits.small{font-size:18px}.hint{font-size:13px;color:#6b7280;margin:6px 0 0}.balance{text-align:center;margin:20px 0 4px}.balance-value{font-size:40px;font-weight:700}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:flex-end}.sheet{width:100%;max-width:480px;margin:0 auto;background:var(--card);border-radius:16px 16px 0 0;padding:20px 16px calc(16px + env(safe-area-inset-bottom));text-align:center}.qr{width:240px;max-width:80%;height:auto;background:#fff;border-radius:8px;image-rendering:pixelated}.welcome{background:#e7f5ec;color:#14532d;border-radius:12px;padding:12px 14px;margin-bottom:12px;font-size:15px}@media(prefers-color-scheme:dark){.welcome{background:#173a24;color:#c7f0d4}}.check{display:flex!important;gap:10px;align-items:flex-start;color:var(--fg)!important;font-size:15px!important}.check input{width:20px;height:20px;margin:2px 0 0;flex:none}.promos{margin-top:28px}.promos h2{font-size:18px}.promo{background:var(--card);border-radius:14px;padding:14px;margin-top:10px;border:2px solid transparent}.promo.active{border-color:var(--accent)}.promo img{width:100%;border-radius:10px;margin-bottom:8px}.promo h3{margin:0 0 6px;font-size:16px}.promo-body{margin:0;white-space:pre-line}.small{font-size:13px;margin:6px 0 0}.switch{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:16px 0 24px;padding:12px 14px;background:var(--card);border-radius:12px}.switch input{width:22px;height:22px}.check a,.small a{color:var(--accent)}.note{margin:8px 0 0;padding:10px 12px;border-radius:12px;background:var(--card);font-size:14px}.note.warn{background:#fff4e5;color:#7a4100}@media(prefers-color-scheme:dark){.note.warn{background:#3a2a12;color:#ffd7a1}}.seg-tabs{display:flex;gap:4px;margin-top:24px;padding:4px;border-radius:12px;background:var(--card)}.seg-tabs button{flex:1;padding:9px 6px;border:0;border-radius:9px;background:transparent;color:var(--muted);font:inherit;font-size:15px;font-weight:600}.seg-tabs button.active{background:var(--accent);color:#fff}.seg-tabs+.promos{margin-top:16px}.gift-row{display:flex;justify-content:space-between;align-items:baseline;gap:10px}.gift-row h3{margin:0}.gift-price{white-space:nowrap;color:var(--accent)}.gift .btn{margin-top:10px;padding:11px}.history{list-style:none;margin:0;padding:0;background:var(--card);border-radius:14px}.history li{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 14px;border-top:1px solid rgba(127,127,127,.18)}.history li:first-child{border-top:0}.history .plus{color:#1e8e3e;white-space:nowrap}.history .minus{white-space:nowrap}@media(prefers-color-scheme:dark){.history .plus{color:#6fd08c}}.stars{display:flex;justify-content:center;gap:6px;margin:16px 0 4px}.stars button,.stars span{border:0;background:transparent;padding:0 2px;font-size:44px;line-height:1;color:#7f7f7f59}.stars .on{color:#f5a623}.stars.static span{font-size:30px}.stars-hint{margin:0 0 4px;font-size:14px}.form 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rgba(127,127,127,.3);font-size:14px}.history .receipt-lines li{display:flex;justify-content:space-between;gap:12px;padding:3px 0;border:0}.seg-tabs.sub{margin:0 0 12px}.branding{margin:28px 0 4px;text-align:center;font-size:12px}.branding a{color:var(--muted);text-decoration:none}.branding a{display:inline-flex;align-items:center;gap:6px}.branding img{display:block}