:root{color-scheme:light dark;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;--app-bg: #f4f5f7;--surface: #ffffff;--input-bg: #ffffff;--text: #111827;--muted: #6b7280;--border: #e5e7eb;--accent: #16a34a;--accent-text: #ffffff;--success: #16a34a;--danger: #dc2626;--warn: #d97706}*{box-sizing:border-box}body{margin:0;background:var(--app-bg);color:var(--text);line-height:1.45}.app{max-width:520px;margin:0 auto;min-height:100vh;background:var(--surface);padding:12px 16px 32px}.topbar{display:flex;align-items:center;gap:10px;padding:8px 0;position:sticky;top:0;background:var(--surface);border-bottom:1px solid var(--border);margin-bottom:12px}.topbar .back{background:transparent;border:none;font-size:20px;cursor:pointer;color:var(--text)}[dir=rtl] .topbar .back{transform:scaleX(-1)}.topbar span{font-weight:600;flex:1}.lang-toggle{background:transparent;border:1px solid var(--border);border-radius:999px;padding:3px 10px;font-size:12px;font-weight:600;color:var(--accent);cursor:pointer;white-space:nowrap}.banner{border-radius:8px;padding:10px 12px;margin:8px 0;display:flex;justify-content:space-between;align-items:center;font-size:14px}.banner.error{background:color-mix(in srgb,var(--danger) 12%,var(--surface));color:var(--danger)}.banner.notice{background:color-mix(in srgb,var(--warn) 14%,var(--surface));color:var(--warn)}.banner button{background:transparent;border:none;font-size:14px;cursor:pointer;color:inherit}.list{display:flex;flex-direction:column;gap:10px}.card{display:block;width:100%;text-align:start;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:12px;cursor:pointer;font:inherit;color:var(--text)}.card p{margin:4px 0 0;color:var(--muted);font-size:14px}.card.row{display:flex;justify-content:space-between;align-items:center;gap:10px}.screen{padding:24px 8px;text-align:start}.screen.center{text-align:center}h1{margin-top:0}h2{margin:12px 0 8px}.price{color:var(--text);font-weight:600;white-space:nowrap}.muted{color:var(--muted);font-size:13px}.detail{display:flex;flex-direction:column;gap:10px}fieldset{border:1px solid var(--border);border-radius:10px;padding:10px 12px}legend{font-weight:600;padding:0 6px}.option{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px 0;cursor:pointer}.option input{margin-inline-end:8px}.primary{display:block;width:100%;margin-top:14px;padding:12px;background:var(--accent);color:var(--accent-text);border:none;border-radius:10px;font-size:16px;font-weight:600;cursor:pointer}.primary:disabled{opacity:.6}.link{background:transparent;border:none;color:var(--danger);cursor:pointer;padding:4px 0;font-size:13px}.qty{display:flex;align-items:center;gap:10px}.qty button{width:28px;height:28px;border-radius:6px;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer}.row.between{display:flex;justify-content:space-between;align-items:center;margin-top:8px}.total{font-weight:600;margin:12px 0}.type-picker{display:flex;gap:8px;margin-bottom:12px}.type-picker button{flex:1;padding:10px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer}.type-picker button.selected{background:color-mix(in srgb,var(--accent) 18%,var(--surface));border-color:var(--accent);color:var(--text)}label{display:block;margin:10px 0;font-size:14px}label input{display:block;width:100%;margin-top:4px;padding:10px;border:1px solid var(--border);border-radius:8px;font-size:15px;color:var(--text);background:var(--input-bg)}.steps{margin:16px 0}.step{padding:8px 12px;border-inline-start:3px solid var(--border);color:var(--muted)}.step.done{border-inline-start-color:var(--success);color:var(--text);font-weight:600}.align-right{text-align:end}.error-text{color:var(--danger)}