* { box-sizing: border-box; }
:root { color-scheme: dark; --bg:#131313; --surface:#1c1b1b; --surface-high:#2a2a2a; --surface-low:#0e0e0e; --text:#e5e2e1; --muted:#bac9cc; --quiet:#849396; --line:#3b494c; --cyan:#00daf3; --cyan-soft:#c3f5ff; --error:#ffb4ab; font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif; }
body { margin:0; min-height:100vh; background:radial-gradient(circle at 50% -12rem,rgba(0,218,243,.08),transparent 28rem),var(--bg); color:var(--text); -webkit-font-smoothing:antialiased; }
button,input { font:inherit; }
.shell { width:min(760px,calc(100% - 40px)); margin:0 auto; padding:64px 0 40px; }
.hero { display:flex; flex-direction:column; align-items:center; text-align:center; gap:8px; margin-bottom:40px; }
.badge { display:inline-flex; align-items:center; gap:8px; padding:7px 10px; margin-bottom:4px; border:1px solid rgba(132,147,150,.3); border-radius:999px; background:var(--surface-high); color:var(--muted); font:500 11px/1 ui-monospace,SFMono-Regular,Menlo,monospace; letter-spacing:.05em; text-transform:uppercase; }
.badge span { width:8px; height:8px; border-radius:50%; background:var(--cyan); box-shadow:0 0 10px rgba(0,218,243,.7); }
h1 { margin:0; font-size:clamp(2.7rem,9vw,4.25rem); line-height:1.05; letter-spacing:-.055em; }
.hero p { margin:0; }
.hero-lead { color:var(--muted); font-size:16px; line-height:1.6; }
.hero-note { color:var(--quiet); font-size:14px; }
.upload-panel { margin-bottom:24px; }
.dropzone,.preview-wrap { min-height:380px; aspect-ratio:16/9; border-radius:12px; overflow:hidden; }
.dropzone { position:relative; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:8px; padding:24px; cursor:pointer; text-align:center; background:var(--surface-low); border:1px solid rgba(132,147,150,.5); box-shadow:0 0 20px rgba(0,218,243,.08); transition:border-color .2s,background .2s,transform .2s; }
.dropzone:hover,.dropzone.dragover { border-color:rgba(0,218,243,.7); background:#121a1b; }
.dropzone:active { transform:scale(.997); }
.dropzone input { position:absolute; inset:0; width:100%; height:100%; opacity:0; cursor:pointer; }
.upload-icon { display:grid; place-items:center; width:64px; height:64px; margin-bottom:8px; border:1px solid rgba(132,147,150,.5); border-radius:50%; background:var(--surface); color:var(--quiet); font-size:32px; transition:color .2s,border-color .2s; }
.dropzone:hover .upload-icon { color:var(--cyan); border-color:rgba(0,218,243,.5); }
.dropzone strong { font-size:20px; font-weight:500; }
.dropzone>span:not(.upload-icon) { color:var(--muted); }
.dropzone small { margin-top:8px; color:var(--quiet); font:500 11px/1 ui-monospace,SFMono-Regular,Menlo,monospace; letter-spacing:.08em; }
.preview-wrap { position:relative; display:grid; place-items:center; background:#080808; border:1px solid rgba(0,218,243,.4); box-shadow:0 0 20px rgba(0,218,243,.12); }
.preview-wrap img { width:100%; height:100%; object-fit:contain; }
.change-btn { position:absolute; right:12px; bottom:12px; padding:9px 12px; border:1px solid rgba(255,255,255,.15); border-radius:7px; background:rgba(14,14,14,.92); color:var(--text); cursor:pointer; }
.glass-panel,.instructions { border:1px solid rgba(255,255,255,.08); border-radius:12px; background:#111; }
.glass-panel { padding:20px 24px; margin-bottom:24px; transition:opacity .25s; }
.section-heading { display:flex; align-items:center; justify-content:space-between; padding-bottom:12px; margin-bottom:16px; border-bottom:1px solid rgba(59,73,76,.55); }
.section-heading h2,.output-section h2 { margin:0; color:var(--text); font:500 11px/1 ui-monospace,SFMono-Regular,Menlo,monospace; letter-spacing:.08em; text-transform:uppercase; }
.section-heading span { color:var(--quiet); }
.metadata-grid { display:grid; grid-template-columns:1fr 1fr; gap:24px; }
.metadata-column h3 { margin:0 0 8px; color:var(--quiet); font-size:11px; font-weight:600; letter-spacing:.08em; text-transform:uppercase; }
.target-column h3,.target-column dd { color:var(--cyan); }
dl { margin:0; }
dl div { display:flex; justify-content:space-between; gap:12px; padding:7px 0; border-bottom:1px solid rgba(59,73,76,.4); font-size:14px; }
dl div:last-child { border-bottom:0; }
dt { color:var(--text); }
dd { margin:0; color:var(--muted); text-align:right; overflow-wrap:anywhere; }
.output-section { margin-bottom:24px; transition:opacity .25s; }
.output-section>h2 { margin-bottom:10px; color:var(--quiet); }
.mode-card { position:relative; display:flex; align-items:center; gap:12px; padding:14px; border:1px solid rgba(0,218,243,.45); border-radius:9px; background:rgba(0,218,243,.07); overflow:hidden; }
.mode-card::after { content:""; position:absolute; width:80px; height:80px; right:-25px; top:-30px; border-radius:50%; background:rgba(0,218,243,.15); filter:blur(24px); }
.check { display:grid; place-items:center; width:22px; height:22px; border:1px solid var(--cyan); border-radius:50%; color:var(--cyan); font-size:13px; }
.mode-card>span:last-child { display:flex; flex-direction:column; gap:3px; }
.mode-card strong { font-size:14px; }
.mode-card small { color:var(--muted); font:500 10px/1.2 ui-monospace,SFMono-Regular,Menlo,monospace; letter-spacing:.04em; text-transform:uppercase; }
.actions { margin-bottom:24px; transition:opacity .25s; }
.primary-btn { width:100%; display:flex; align-items:center; justify-content:center; gap:10px; padding:16px; border:1px solid rgba(156,240,255,.35); border-radius:9px; background:linear-gradient(90deg,#007684,var(--cyan)); color:#001f24; font-size:18px; font-weight:650; cursor:pointer; box-shadow:0 0 18px rgba(0,218,243,.18); transition:transform .18s,filter .18s; }
.primary-btn:not(:disabled):hover { filter:brightness(1.08); transform:scale(.995); }
.primary-btn:disabled { cursor:not-allowed; }
.status { min-height:21px; margin:10px 0 0; color:var(--cyan-soft); font-size:13px; text-align:center; }
.status.error { color:var(--error); }
.instructions { display:flex; align-items:flex-start; gap:12px; padding:18px 20px; }
.info-icon { display:grid; place-items:center; flex:0 0 20px; width:20px; height:20px; margin-top:2px; border:1px solid var(--quiet); border-radius:50%; color:var(--quiet); font:600 12px/1 serif; }
.instructions h2 { margin:0 0 5px; font-size:14px; font-weight:600; }
.instructions ol { margin:0; padding-left:18px; color:var(--muted); font-size:14px; line-height:1.65; }
.privacy-line { display:flex; align-items:center; justify-content:center; gap:7px; padding:20px 0 0; color:var(--quiet); font:500 11px/1.4 ui-monospace,SFMono-Regular,Menlo,monospace; letter-spacing:.04em; }
.locked { opacity:.42; pointer-events:none; }
.hidden { display:none!important; }
footer { border-top:1px solid var(--line); background:var(--bg); }
.footer-inner { width:min(760px,calc(100% - 40px)); margin:0 auto; padding:22px 0; display:flex; justify-content:space-between; align-items:center; gap:16px; color:var(--quiet); font:500 11px/1.4 ui-monospace,SFMono-Regular,Menlo,monospace; }
.footer-inner div { display:flex; flex-direction:column; gap:3px; }
.footer-inner strong { color:var(--text); font:600 16px/1.2 Inter,ui-sans-serif,system-ui,sans-serif; }
.footer-inner div span { color:var(--cyan); }
@media (max-width:640px) { .shell{width:min(100% - 32px,760px);padding-top:40px}.hero{margin-bottom:28px}.dropzone,.preview-wrap{min-height:390px;aspect-ratio:3/4}.metadata-grid{grid-template-columns:1fr}.glass-panel{padding:18px}.footer-inner{width:min(100% - 32px,760px);flex-direction:column;align-items:flex-start} }