:root{--bg:#f6f7fb;--card:#fff;--ink:#111827;--muted:#697386;--line:#e4e7ec;--purple:#6d3df5;--purple2:#8b5cf6;--green:#07966b;--shadow:0 18px 50px rgba(31,41,55,.09)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}.topbar{height:68px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1180px)/2))}.brand{display:flex;gap:11px;align-items:center;color:var(--ink);font-size:20px;font-weight:800;text-decoration:none}.brand-mark,.empty-icon{color:var(--purple);font-size:28px}.status{font-size:13px;color:var(--muted)}.status i{display:inline-block;width:8px;height:8px;background:#10b981;border-radius:50%;margin-right:6px}.shell{max-width:1180px;margin:auto;padding:54px 24px}.intro{text-align:center;margin-bottom:34px}.eyebrow{margin:0 0 8px;color:var(--purple);font-size:12px;font-weight:800;letter-spacing:.12em}.intro h1{font-size:clamp(32px,5vw,50px);line-height:1.08;margin:0}.intro>p:last-child{color:var(--muted);font-size:17px}.layout{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(310px,.8fr);gap:24px;align-items:start}.workarea,.preview-card,.history{background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}.workarea{padding:24px}.type-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.type-card{display:flex;align-items:center;text-align:left;gap:14px;width:100%;min-height:82px;padding:15px;border:1px solid var(--line);border-radius:14px;background:#fff;cursor:pointer;transition:.18s}.type-card:hover{border-color:#b9a7ff;box-shadow:0 8px 22px rgba(109,61,245,.1);transform:translateY(-1px)}.type-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:11px;background:#f0ebff;color:var(--purple);font-size:22px;flex:none}.type-card strong{display:block;font-size:15px}.type-card small{display:block;color:var(--muted);font-size:12px;margin-top:4px}.preview-card{position:sticky;top:24px;min-height:430px;padding:28px;display:grid;place-items:center;text-align:center}.empty-preview{max-width:250px}.empty-icon{font-size:64px;opacity:.28}.empty-preview h2{font-size:18px}.empty-preview p,.result p{color:var(--muted);font-size:13px}.editor-head{display:flex;gap:18px;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:22px}.editor-head h2{margin:0 0 5px}.editor-head p{margin:0;color:var(--muted);font-size:14px}.back,.link-button{border:0;background:none;color:var(--purple);font-weight:700;cursor:pointer}.back{align-self:flex-start;padding:7px 0}.fields,.style-fields{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}label{font-size:13px;font-weight:700}label.full{grid-column:1/-1}input,textarea,select{width:100%;margin-top:7px;border:1px solid #d7dbe3;border-radius:10px;padding:12px 13px;background:#fff;font:inherit;color:var(--ink);outline:none}textarea{min-height:88px;resize:vertical}input:focus,textarea:focus,select:focus{border-color:var(--purple);box-shadow:0 0 0 3px rgba(109,61,245,.12)}.field-note{display:block;color:var(--muted);font-weight:400;margin-top:5px}.customize{margin:20px 0;border:1px solid var(--line);border-radius:12px;padding:14px}.customize summary{cursor:pointer;font-size:14px;font-weight:750}.style-fields{margin-top:15px}.style-fields input[type=color]{height:44px;padding:5px}.primary,.secondary{border:0;border-radius:11px;padding:13px 18px;font-weight:800;cursor:pointer}.primary{background:linear-gradient(135deg,var(--purple),var(--purple2));color:white}.secondary{background:#f2efff;color:var(--purple)}#generateBtn{width:100%;font-size:15px}.message{min-height:20px;margin:10px 0 0;font-size:13px;color:#c2410c}.hidden{display:none!important}.ready{display:inline-block;background:#e8fbf3;color:var(--green);padding:7px 10px;border-radius:99px;font-size:12px;font-weight:800;margin-bottom:18px}#qrCanvas{display:flex;justify-content:center}#qrCanvas canvas,#qrCanvas svg{max-width:100%;height:auto!important;border-radius:10px}.download-row{display:flex;gap:9px;justify-content:center;margin:15px 0 8px}.history{margin-top:26px;padding:24px}.section-title{display:flex;align-items:center;justify-content:space-between}.section-title h2{margin:0}.history-list{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px}.history-item{border:1px solid var(--line);border-radius:12px;padding:13px}.history-item strong{font-size:13px;display:block}.history-item small{color:var(--muted)}footer{text-align:center;color:var(--muted);font-size:13px;padding:26px}.uploading{opacity:.65;pointer-events:none}@media(max-width:850px){.layout{grid-template-columns:1fr}.preview-card{position:static}.history-list{grid-template-columns:repeat(2,1fr)}}@media(max-width:570px){.shell{padding:34px 14px}.topbar{padding:0 16px}.status{display:none}.workarea{padding:14px}.type-grid,.fields,.style-fields{grid-template-columns:1fr}.type-card{min-height:74px}.history-list{grid-template-columns:1fr}.preview-card{min-height:360px}}