:root{color-scheme:light;font-family:SF Pro Display,PingFang SC,Helvetica Neue,sans-serif;background:radial-gradient(circle at top,rgba(255,210,154,.65),transparent 35%),radial-gradient(circle at bottom right,rgba(78,126,255,.2),transparent 30%),#f5efe5;color:#1a1a1f}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button,select{font:inherit}img{display:block;max-width:100%}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.page-shell{width:min(1120px,calc(100% - 32px));margin:0 auto;padding:48px 0 72px}.hero-card,.settings-card{background:#ffffffb8;border:1px solid rgba(255,255,255,.86);box-shadow:0 24px 90px #55442a26;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.hero-card{display:grid;grid-template-columns:minmax(260px,1fr) minmax(280px,520px);gap:36px;align-items:center;padding:36px;border-radius:36px}.eyebrow{margin:0 0 12px;font-size:.82rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:#7e5d39}.hero-copy h1{margin:0 0 12px;font-size:clamp(2.5rem,5vw,4.8rem);line-height:.92;letter-spacing:-.05em}.hero-text{max-width:32rem;margin:0;font-size:1.04rem;line-height:1.7;color:#1a1a1fc2}.preview-panel{display:grid;gap:12px}.preview-stage{position:relative;width:100%;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease}.preview-stage.is-portrait{height:720px}.preview-stage.is-landscape{height:auto}.preview-stage:hover{transform:translateY(-2px)}.preview-stage.is-empty:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0}.preview-frame{position:relative;display:flex;align-items:center;justify-content:center;width:100%;height:100%}.preview-stage.is-landscape .preview-frame{height:auto}.preview-image{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain}.upload-affordance{position:absolute;left:50%;top:50%;display:grid;justify-items:center;gap:8px;padding:20px 24px;border-radius:28px;background:#0e142494;color:#fff;box-shadow:0 20px 32px #0e14243d;transform:translate(-50%,-50%)}.upload-plus{font-size:3rem;line-height:.9;font-weight:300}.upload-label{font-size:.94rem;letter-spacing:.08em}.preview-meta{display:flex;flex-wrap:wrap;gap:8px}.preview-meta span{padding:8px 12px;border-radius:999px;background:#ffffffb8;font-size:.86rem;color:#1a1a1fb8}.settings-card{display:grid;gap:16px;margin-top:22px;padding:24px;border-radius:30px}.setting-row{display:grid;grid-template-columns:80px 1fr;gap:16px;align-items:center}.setting-row label{font-size:.94rem;color:#1a1a1fbd}.setting-row select{width:100%;min-height:48px;padding:0 16px;border:1px solid rgba(38,45,64,.12);border-radius:16px;background:#ffffffe0;color:#12141a}.export-button{min-height:56px;border:0;border-radius:18px;background:linear-gradient(135deg,#111824,#314472),linear-gradient(135deg,#d69053,#e8c56e);color:#fffdf9;font-size:1rem;font-weight:700;letter-spacing:.03em;cursor:pointer;transition:opacity .16s ease,transform .16s ease}.export-button:disabled{cursor:not-allowed;opacity:.5}.export-button:not(:disabled):hover{transform:translateY(-1px)}.status-area{min-height:24px;font-size:.9rem;color:#1a1a1fad}.status-area p{margin:0}.error-text{color:#ad263d}@media (max-width: 900px){.page-shell{width:min(100% - 24px,720px);padding:24px 0 48px}.hero-card{grid-template-columns:1fr;padding:24px}.preview-stage.is-portrait{height:640px}}@media (max-width: 560px){.preview-stage.is-portrait{height:520px}.setting-row{grid-template-columns:1fr;gap:8px}.hero-copy h1{font-size:2.8rem}}