:root{color-scheme:light;--ink:#171717;--muted:#626c7a;--line:#d9dee7;--panel:#fff;--bg:#f5f7f4;--accent:#0f766e;--accent-ink:#fff;--warm:#f6c453}*{box-sizing:border-box}body{margin:0;background:linear-gradient(135deg,rgba(246,196,83,.24),transparent 32%),linear-gradient(315deg,rgba(15,118,110,.18),transparent 30%),var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input{font:inherit}.shell{min-height:100vh;padding:40px 20px;display:grid;place-items:center}.purchase-panel{width:min(1120px,100%);background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:0 24px 70px rgba(39,49,65,.16);padding:clamp(20px,4vw,44px)}.intro{margin-bottom:28px}.eyebrow{color:var(--accent);font-size:.78rem;font-weight:800;letter-spacing:.08em;margin:0 0 8px;text-transform:uppercase}h1{font-size:clamp(2.5rem,7vw,5.6rem);line-height:.95;margin:0}.flow-grid{align-items:start;display:grid;grid-gap:clamp(24px,5vw,56px);gap:clamp(24px,5vw,56px);grid-template-columns:minmax(280px,420px) minmax(320px,1fr)}.controls{display:grid;grid-gap:22px;gap:22px}.upload-target{align-items:center;border:1px dashed #91a0b4;border-radius:8px;cursor:pointer;display:flex;min-height:74px;padding:18px}.upload-target input{display:none}.upload-target span{color:var(--muted);overflow-wrap:anywhere}.field-group{display:grid;grid-gap:10px;gap:10px}.field-label{color:#303744;font-size:.86rem;font-weight:800}.product-grid{display:grid;grid-gap:8px;gap:8px;grid-template-columns:repeat(2,minmax(0,1fr))}.product{background:#f9fafb;border:1px solid var(--line);border-radius:8px;color:var(--ink);cursor:pointer;display:grid;grid-gap:4px;gap:4px;min-height:74px;padding:12px;text-align:left}.product strong{font-size:.96rem}.product span{color:var(--muted);font-size:.85rem}.product.selected{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}.checkout-button{background:var(--accent);border:0;border-radius:8px;color:var(--accent-ink);cursor:pointer;font-weight:800;min-height:52px;padding:0 18px}.price-panel{align-items:center;background:#f6f8fb;border:1px solid var(--line);border-radius:8px;display:grid;grid-gap:4px;gap:4px;grid-template-columns:1fr auto;padding:14px}.price-panel span{color:#303744;font-weight:800}.price-panel strong{font-size:1.8rem;line-height:1}.price-panel small{color:var(--muted);grid-column:1/-1}button:disabled{cursor:not-allowed;opacity:.62}.status{color:var(--muted);margin:0}.preview-wrap{display:grid;grid-gap:14px;gap:14px}.preview{align-items:center;background:linear-gradient(45deg,#e8edf4 25%,transparent 0),linear-gradient(-45deg,#e8edf4 25%,transparent 0),linear-gradient(45deg,transparent 75%,#e8edf4 0),linear-gradient(-45deg,transparent 75%,#e8edf4 0),#f8fafc;background-position:0 0,0 10px,10px -10px,-10px 0;background-size:20px 20px;border:1px solid var(--line);border-radius:8px;display:flex;justify-content:center;min-height:280px;overflow:hidden;touch-action:none;width:100%}.preview.movable{cursor:move}.preview img{display:block;height:100%;-webkit-user-select:none;-moz-user-select:none;user-select:none;width:100%}.preview span{color:#8792a2;font-weight:800}.preview-meta{align-items:center;color:var(--muted);display:flex;gap:10px}.preview-meta strong{color:var(--ink)}.position-panel{border:1px solid var(--line);border-radius:8px;padding:14px}.position-panel label{display:grid;grid-gap:10px;gap:10px}.position-panel span{color:#303744;font-size:.86rem;font-weight:800}.position-panel input{accent-color:var(--accent);width:100%}.result-page{min-height:100vh;padding:40px 20px;display:grid;place-items:center}.result-page section{width:min(680px,100%)}.result-page p{color:var(--muted);font-size:1.05rem}.result-page a{color:var(--accent);font-weight:800}@media (max-width:840px){.flow-grid{grid-template-columns:1fr}.preview-wrap{order:-1}}@media (max-width:520px){.shell{padding:0}.purchase-panel{border-left:0;border-radius:0;border-right:0;min-height:100vh}.product-grid{grid-template-columns:1fr}}