:root{--bg:#f7f7f5;--card:#fff;--card-2:#f3f3f1;--border:#deded9;--text:#242422;--muted:#6b6b67;--primary:#45647e;--primary-soft:#607d95;--primary-hover:#344e64;--danger:#c4474f;--success:#39745d;--accent:#9a6827}*{box-sizing:border-box;margin:0;padding:0}body{background:linear-gradient(180deg, #fafaf9 0%, var(--bg) 100%);color:var(--text);background-attachment:fixed;min-height:100vh;padding:24px 16px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica Neue,Prompt,Sarabun,sans-serif;line-height:1.5}.container{max-width:900px;margin:0 auto}.lang-toggle{background:var(--card-2);border:1px solid var(--border);z-index:1;border-radius:999px;gap:2px;padding:3px;display:inline-flex;position:relative}.lang-btn{color:var(--muted);cursor:pointer;letter-spacing:.5px;background:0 0;border:none;border-radius:999px;padding:5px 12px;font-family:inherit;font-size:12px;font-weight:600;transition:background .15s,color .15s}.lang-btn:hover{color:var(--text)}.lang-btn.active{background:var(--primary);color:#fff}@media (max-width:480px){.lang-toggle{width:fit-content;margin:0 auto 14px}}h1{margin-bottom:6px;font-size:32px;font-weight:700}.subtitle{color:var(--muted);font-size:14px}.trust-meta{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.trust-meta span{border:1px solid var(--border);color:var(--text);background:#45647e0d;border-radius:999px;align-items:center;padding:6px 10px;font-size:12px;font-weight:600;display:inline-flex}.card{background:var(--card);border:1px solid var(--border);border-radius:14px;margin-bottom:18px;padding:20px;box-shadow:0 6px 22px #2323200f}h2{color:var(--text);border-left:3px solid var(--primary);margin-bottom:14px;padding-left:10px;font-size:18px}.row{gap:8px;margin-bottom:12px;display:flex}.grid{grid-template-columns:2fr 1fr 1.5fr;gap:12px;margin-bottom:12px;display:grid}.item-form-grid{grid-template-columns:2fr 1.2fr .9fr}@media 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0}.btn-ghost:hover{color:var(--primary-soft);border-color:var(--primary-soft)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#dc2626}.btn-link-danger{color:var(--danger);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;padding:4px 10px;font-family:inherit;font-size:13px;font-weight:500;transition:background .15s,border-color .15s}.btn-link-danger:hover{border-color:var(--danger);background:#ef44441a}.qty-stepper{border:1px solid var(--border);background:#45647e0d;border-radius:999px;align-items:center;gap:8px;padding:4px 8px;display:inline-flex}.qty-btn{min-width:32px;min-height:32px;color:var(--text);cursor:pointer;background:0 0;border:none;border-radius:999px;padding:2px 6px;font-family:inherit;font-size:16px;font-weight:600;transition:background .15s}.qty-btn:hover{background:#45647e1a}.smart-split-callout{background:#10b98114;border:1px solid #10b98159;border-radius:12px;margin-bottom:12px;padding:12px 14px}.smart-split-callout 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.15s;display:inline-flex;position:relative}.chip-radio:hover{color:var(--text);border-color:var(--primary)}.chip-radio input[type=radio]{opacity:0;pointer-events:none;width:1px;height:1px;position:absolute}.chip-radio:has(input:checked){background:var(--primary);border-color:var(--primary);color:#fff}.chip-radio:has(input:focus-visible){outline:2px solid var(--primary);outline-offset:2px}.segmented-control{background:var(--card-2);border:1px solid var(--border);border-radius:10px;grid-auto-columns:1fr;grid-auto-flow:column;gap:2px;padding:3px;display:grid}.segmented-control label{color:var(--muted);cursor:pointer;-webkit-user-select:none;user-select:none;text-align:center;border-radius:8px;justify-content:center;align-items:center;padding:8px 6px;font-size:13px;font-weight:500;transition:background .15s,color .15s;display:flex;position:relative}.segmented-control label:hover{color:var(--text)}.segmented-control input[type=radio]{opacity:0;pointer-events:none;width:1px;height:1px;position:absolute}.segmented-control label:has(input:checked){background:var(--primary);color:#fff}.segmented-control label:has(input:focus-visible){outline:2px solid var(--primary);outline-offset:2px}.item-cards{flex-direction:column;gap:10px;margin-top:16px;list-style:none;display:flex}.item-card{background:var(--card-2);border:1px solid var(--border);border-radius:12px;flex-direction:column;gap:10px;padding:12px 14px;transition:border-color .15s;display:flex}.item-card:hover{border-color:#45647e61}.item-card-main{justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.item-card-title{flex-wrap:wrap;align-items:center;gap:8px;min-width:0;display:flex}.item-card-name{overflow-wrap:anywhere;font-size:15px;font-weight:600}.item-card-price{text-align:right;flex-shrink:0}.item-card-meta{flex-wrap:wrap;gap:6px 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var(--border);flex-direction:column;gap:6px;margin-top:12px;padding-top:10px;list-style:none;display:flex}.balance-item{color:var(--muted);justify-content:space-between;align-items:baseline;gap:12px;font-size:13px;display:flex}.balance-item-name{overflow-wrap:anywhere}.balance-item-split{color:var(--primary-soft);font-size:12px;font-weight:600}.balance-item-amount{color:var(--text);font-variant-numeric:tabular-nums;white-space:nowrap}.summary-row.paid-more{border-left-color:var(--success)}.summary-row.owes{border-left-color:var(--accent)}.summary-name{font-size:16px;font-weight:600}.summary-detail{color:var(--muted);margin-top:2px;font-size:12px}.summary-amount{text-align:right;font-size:16px;font-weight:700}.summary-amount.positive{color:var(--success)}.summary-amount.negative{color:var(--accent)}.settlements{border-top:1px dashed var(--border);margin-top:16px;padding-top:16px}.settlements h3{color:var(--muted);margin-bottom:10px;font-size:14px;font-weight:500}.settlement-item{background:var(--card-2);border-radius:8px;margin-bottom:6px;padding:10px 14px;font-size:14px}.settlement-item strong{color:var(--accent)}.footer{text-align:center;margin-top:20px}:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}.skip-link{background:var(--primary);color:#fff;z-index:100;border-radius:0 0 8px;padding:8px 16px;font-weight:600;text-decoration:none;position:absolute;top:0;left:-9999px}.skip-link:focus{left:0}.brand{justify-content:center;margin-bottom:8px;display:flex}.brand-logo{width:auto;height:56px}.banner{color:var(--success);background:#10b9811f;border:1px solid #10b9814d;border-radius:999px;margin-top:12px;padding:6px 14px;font-size:13px;font-weight:500;display:inline-block}.hint{color:var(--muted);margin-bottom:8px;font-size:12px}.dim{color:var(--muted)}.btn-sm{padding:6px 12px;font-size:12px}.btn-link{color:var(--primary);cursor:pointer;text-underline-offset:3px;background:0 0;border:none;align-self:flex-start;padding:6px 0;font-family:inherit;font-size:13px;font-weight:500;text-decoration:underline}.btn-link:hover{color:var(--primary-hover)}.item-form-footer{flex-direction:column;gap:12px;margin-top:8px;display:flex}.advanced-toggle-row{align-items:center;gap:6px;display:flex}.info-btn{border:1px solid var(--border);background:var(--card-2);width:26px;height:26px;color:var(--muted);cursor:pointer;border-radius:999px;justify-content:center;align-items:center;padding:0;transition:color .15s,border-color .15s,background .15s;display:inline-flex}.info-btn:hover,.info-btn[aria-expanded=true]{color:var(--primary);border-color:var(--primary);background:#45647e14}.help-card{background:var(--card-2);border:1px solid var(--border);border-left:3px solid var(--primary);border-radius:10px;padding:14px 16px;font-size:13px}.help-card h4{color:var(--text);margin-bottom:10px;font-size:13px;font-weight:600}.help-card dl{flex-direction:column;gap:10px;display:flex}.help-card dt{color:var(--primary);margin-bottom:2px;font-size:13px;font-weight:600}.help-card dd{color:var(--muted);line-height:1.55}.btn-submit{width:100%;padding:12px 18px;font-size:15px}.grid-two{grid-template-columns:1fr 1fr}.add-person-row{grid-template-columns:1.2fr 1.4fr auto;gap:8px;margin-bottom:14px;display:grid}@media (max-width:640px){.add-person-row{grid-template-columns:1fr}}.person-list{flex-direction:column;gap:8px;list-style:none;display:flex}.person-row{background:var(--card-2);border:1px solid var(--border);border-radius:10px;grid-template-columns:auto minmax(0,1.1fr) minmax(0,1.4fr) auto;align-items:center;gap:8px;padding:10px 12px;display:grid}@media (max-width:640px){.person-row{grid-template-columns:auto 1fr auto}.person-row .person-promptpay{grid-column:2/-1}}.person-avatar{background:var(--primary);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:34px;height:34px;font-size:14px;font-weight:700;display:inline-flex}.person-name{font-weight:600}.advanced-panel{background:var(--card-2);border:1px solid var(--border);border-radius:10px;margin-bottom:14px;padding:14px}.weights-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:8px;display:grid}.weight-row{background:var(--card);border:1px solid var(--border);border-radius:8px;grid-template-columns:1fr 80px;align-items:center;gap:8px;padding:6px 10px;display:grid}.weight-row span{color:var(--text);font-size:13px}.badge-row{flex-wrap:wrap;gap:4px;display:flex}.shared-entry{white-space:nowrap}.shared-weight{color:var(--accent);margin-left:4px;font-size:12px;font-weight:600}.price-final{color:var(--text);font-weight:600}.price-breakdown{color:var(--muted);font-variant-numeric:tabular-nums;margin-top:2px;font-size:11px}.badge{letter-spacing:.3px;border:1px solid #0000;border-radius:999px;padding:2px 8px;font-size:11px;font-weight:600;display:inline-block}.badge-on{color:#344e64;background:#e8eef2;border-color:#cbd8e1}.badge-off{color:var(--muted);background:#f0f0ee;border-color:#ddddda}.badge-neutral{color:var(--accent);background:#f59e0b1f;border-color:#f59e0b4d}.summary-actions{flex-wrap:wrap;gap:8px;margin-bottom:6px;display:flex}.settlement-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.qr-card{color:#0f172a;background:#fff;border-radius:10px;flex-direction:column;align-items:center;gap:8px;margin-top:10px;padding:14px;display:flex}.qr-header{flex-direction:column;align-items:center;gap:2px;display:flex}.qr-title{color:#64748b;text-transform:uppercase;letter-spacing:.5px;font-size:12px}.qr-recipient{color:#0f172a;font-size:16px;font-weight:700}.qr-amount{color:#334155;font-size:14px}.qr-loading,.qr-error{color:#64748b;padding:40px;font-size:14px}.qr-error{color:var(--danger)}.tax-breakdown{border-top:1px dashed var(--border);margin-top:16px;padding-top:16px}.tax-breakdown h3{color:var(--muted);margin-bottom:4px;font-size:14px;font-weight:500}.error-fallback{background:var(--card);border:1px solid var(--danger);text-align:center;border-radius:14px;padding:32px}.error-fallback h2{color:var(--danger);border:none;margin-bottom:12px;padding:0;font-size:22px}.error-message{color:var(--muted);word-break:break-word;margin-bottom:20px;font-size:14px}.confirm-dialog{background:var(--card);color:var(--text);border:none;border-radius:14px;width:90%;max-width:420px;height:fit-content;margin:auto;padding:0;position:fixed;inset:0;box-shadow:0 24px 60px #00000080}.confirm-dialog::backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0009}.confirm-inner{padding:24px}.confirm-title{color:var(--text);border:none;margin-bottom:8px;padding:0;font-size:18px;font-weight:700}.confirm-message{color:var(--muted);margin-bottom:20px;font-size:14px;line-height:1.55}.confirm-actions{justify-content:flex-end;gap:8px;display:flex}.export-offscreen{pointer-events:none;opacity:0;position:absolute;top:0;left:-9999px}.export-sheet{color:#242422;background:linear-gradient(#fff 0%,#fafaf9 100%);width:720px;padding:36px 40px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica Neue,Prompt,Sarabun,sans-serif;line-height:1.5}.export-header{border-bottom:2px solid #deded9;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:22px;padding-bottom:18px;display:flex}.export-logo{width:auto;height:56px}.export-meta{color:#6b6b67;text-align:right;flex-direction:column;align-items:flex-end;gap:2px;font-size:12px;display:flex}.export-meta strong{color:#242422;font-size:14px}.export-hero{background:#f3f3f1;border:1px solid #deded9;border-left:4px solid #45647e;border-radius:14px;margin-bottom:22px;padding:20px 24px}.export-hero-label{color:#6b6b67;text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px;font-size:12px}.export-hero-total{color:#242422;letter-spacing:-.01em;font-size:32px;font-weight:800}.export-hero-breakdown{color:#6b6b67;font-variant-numeric:tabular-nums;margin-top:4px;font-size:13px}.export-section{margin-bottom:22px}.export-section h3{color:#6b6b67;text-transform:uppercase;letter-spacing:.8px;border:none;margin-bottom:10px;padding:0;font-size:13px;font-weight:700}.export-balance{background:#fafaf9;border:1px solid #deded9;border-left:4px solid #45647e;border-radius:10px;margin-bottom:8px;padding:12px 16px}.export-balance.paid-more{border-left-color:#39745d}.export-balance.owes{border-left-color:#9a6827}.export-balance-head{justify-content:space-between;align-items:center;gap:12px;display:flex}.export-sub{color:#6b6b67;margin-top:2px;font-size:12px}.export-amount{text-align:right;font-size:15px;font-weight:700}.export-amount.positive{color:#39745d}.export-amount.negative{color:#9a6827}.export-shares{border-top:1px dashed #deded9;flex-direction:column;gap:4px;margin:10px 0 0;padding:10px 0 0;list-style:none;display:flex}.export-shares li{color:#6b6b67;justify-content:space-between;gap:12px;font-size:12px;display:flex}.export-share-split{color:#45647e;font-weight:600}.export-share-amount{color:#242422;font-variant-numeric:tabular-nums}.export-settlements{margin:0;padding:0;list-style:none}.export-settlements li{background:#fafaf9;border:1px solid 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