:root{color:#17201c;background:#f4f7f5;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;line-height:1.5;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button,input{font:inherit}button{cursor:pointer}.app-shell{display:grid;align-items:center;min-height:100vh;padding:32px;background:linear-gradient(135deg,rgba(21,84,83,.14),transparent 34%),linear-gradient(315deg,rgba(187,63,46,.11),transparent 30%),#f4f7f5}.workspace{display:grid;grid-template-columns:minmax(0,1fr);gap:24px;align-items:stretch;width:100%;max-width:680px;min-height:calc(100vh - 64px);margin:0 auto}.workspace-has-result{grid-template-columns:minmax(0,1.02fr) minmax(320px,.78fr);max-width:1120px}.work-panel,.result-panel{min-width:0;border:1px solid rgba(23,32,28,.14);background:#fbfdfbe6;box-shadow:0 24px 70px #262f2b1f;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.work-panel{display:flex;flex-direction:column;justify-content:center;padding:clamp(24px,5vw,64px);border-radius:8px}.brand-row{display:flex;gap:16px;align-items:center;margin-bottom:44px}.brand-row>div:last-child{min-width:0}.brand-mark{flex:0 0 auto;display:grid;place-items:center;width:56px;height:56px;border-radius:8px;color:#fffefa;background:#155453;box-shadow:inset 0 -12px 24px #00000024}.eyebrow{margin:0 0 2px;color:#a24230;font-size:.78rem;font-weight:750;letter-spacing:0;text-transform:uppercase}h1{margin:0;color:#17201c;font-size:clamp(2.35rem,5vw,4.8rem);line-height:.96;letter-spacing:0}.link-form{display:grid;gap:18px}label,legend{color:#38443f;font-size:.92rem;font-weight:720}.url-field{display:grid;grid-template-columns:24px minmax(0,1fr);gap:10px;align-items:center;min-height:64px;padding:0 18px;border:1px solid rgba(23,32,28,.18);border-radius:8px;color:#155453;background:#fff}.url-field:focus-within{border-color:#155453;box-shadow:0 0 0 4px #15545324}.url-field input{width:100%;min-width:0;border:0;outline:0;color:#17201c;background:transparent;font-size:1rem}.url-field input::placeholder{color:#38443f85}.field-hint,.field-error{min-height:22px;margin:-10px 0 0;font-size:.88rem}.field-hint{color:#65726d}.field-error{color:#a24230}fieldset{min-width:0;margin:0;padding:0;border:0}.ttl-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:10px}.ttl-card{display:grid;gap:2px;min-height:74px;padding:14px 16px;border:1px solid rgba(23,32,28,.16);border-radius:8px;background:#fff;color:#17201c}.ttl-card input{position:absolute;inline-size:1px;block-size:1px;opacity:0}.ttl-card span{font-weight:760}.ttl-card small{color:#697771;font-size:.82rem}.ttl-card-selected{border-color:#155453;background:#e9f3ef;box-shadow:inset 0 0 0 1px #155453}.alert{padding:12px 14px;border:1px solid rgba(162,66,48,.28);border-radius:8px;color:#7d2f22;background:#fff1ed;font-size:.92rem}.submit-button,.copy-button{display:inline-grid;grid-auto-flow:column;gap:10px;align-items:center;justify-content:center;min-height:52px;border:0;border-radius:8px;font-weight:780}.submit-button{width:100%;color:#fffefa;background:#155453}.submit-button:disabled{cursor:not-allowed;opacity:.48}.copy-button{width:100%;color:#17201c;background:#f3c968}.spin{animation:spin .9s linear infinite}.result-panel{display:grid;gap:18px;align-content:center;padding:clamp(22px,3vw,32px);border-radius:8px}.result-heading{display:flex;gap:8px;align-items:center;color:#155453;font-weight:780}.short-url{overflow-wrap:anywhere;color:#17201c;font-size:1.08rem;font-weight:750;text-decoration-color:#15545359;text-underline-offset:4px}dl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0}dt{color:#697771;font-size:.78rem;font-weight:700;text-transform:uppercase}dd{margin:2px 0 0;color:#17201c;font-weight:720}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:820px){.app-shell{padding:16px}.workspace{grid-template-columns:1fr;max-width:680px;min-height:auto}.work-panel{min-height:calc(100vh - 32px)}.workspace-has-result .work-panel,.result-panel{min-height:auto}}@media(max-width:520px){.work-panel{padding:22px}.brand-row{gap:12px;margin-bottom:32px}.brand-mark{width:48px;height:48px}h1{font-size:2rem;line-height:1.05}.ttl-options,dl{grid-template-columns:1fr}.url-field{min-height:58px;padding:0 14px}}