:root{--bg: #f4f4f7;--surface: #ffffff;--surface-2: #f0f0f4;--border: #e0e0e8;--text: #17171c;--text-muted: #62626f;--accent: #6965db;--accent-contrast: #ffffff;--danger: #c2334d;--ok: #1a7f52;--radius: 12px;--shadow: 0 1px 2px rgb(0 0 0 / 6%), 0 8px 24px rgb(0 0 0 / 6%);color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--bg: #121216;--surface: #1b1b21;--surface-2: #232329;--border: #2e2e37;--text: #ececf2;--text-muted: #9a9aa8;--accent: #8b87ff;--accent-contrast: #14141a;--danger: #ff8095;--ok: #5fd6a0;--shadow: 0 1px 2px rgb(0 0 0 / 40%), 0 8px 24px rgb(0 0 0 / 30%)}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}button,input{font:inherit;color:inherit}a{color:var(--accent)}.shell{min-height:100dvh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;gap:12px;padding:14px 20px;border-bottom:1px solid var(--border);background:var(--surface)}.topbar__brand{font-weight:650;letter-spacing:-.01em;margin-right:auto;display:flex;align-items:center;gap:10px}.topbar__mark{width:26px;height:26px;border-radius:7px;background:var(--accent);display:grid;place-items:center;color:var(--accent-contrast);font-size:14px;font-weight:700}.page{width:100%;max-width:860px;margin:0 auto;padding:32px 20px 64px}.centered{flex:1;display:grid;place-items:center;padding:24px 16px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px;width:100%;max-width:400px}.card h1{margin:0 0 6px;font-size:21px;letter-spacing:-.015em}.card p.lede{margin:0 0 22px;color:var(--text-muted);font-size:14px}.field{display:block;margin-bottom:16px}.field>span{display:block;font-size:13px;font-weight:550;margin-bottom:6px;color:var(--text-muted)}input[type=text],input[type=email]{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:9px;background:var(--surface-2);outline:none;transition:border-color .15s,box-shadow .15s}input:focus-visible{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 22%,transparent)}input.code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:24px;letter-spacing:10px;text-align:center;padding:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:11px 16px;border:1px solid transparent;border-radius:9px;background:var(--accent);color:var(--accent-contrast);font-weight:600;cursor:pointer;transition:opacity .15s,transform .05s}.btn:hover:not(:disabled){opacity:.9}.btn:active:not(:disabled){transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn--ghost{background:transparent;border-color:var(--border);color:var(--text);width:auto;padding:7px 12px;font-size:14px;font-weight:550}.btn--link{background:none;border:none;color:var(--text-muted);width:auto;padding:6px 0;font-size:13px;font-weight:500;text-decoration:underline;text-underline-offset:3px;cursor:pointer}.notice{border-radius:9px;padding:10px 12px;font-size:13.5px;margin-bottom:16px;border:1px solid transparent}.notice--error{background:color-mix(in srgb,var(--danger) 12%,transparent);border-color:color-mix(in srgb,var(--danger) 35%,transparent);color:var(--danger)}.notice--ok{background:color-mix(in srgb,var(--ok) 12%,transparent);border-color:color-mix(in srgb,var(--ok) 32%,transparent);color:var(--ok)}.notice--info{background:var(--surface-2);border-color:var(--border);color:var(--text-muted)}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}.tile{display:flex;flex-direction:column;gap:4px;padding:18px;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);text-decoration:none;color:inherit;transition:transform .12s,box-shadow .12s,border-color .12s}.tile:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:color-mix(in srgb,var(--accent) 45%,var(--border))}.tile__mark{width:34px;height:34px;border-radius:9px;display:grid;place-items:center;color:#fff;font-weight:700;margin-bottom:8px}.tile__name{font-weight:600}.tile__desc{font-size:13px;color:var(--text-muted)}.section{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px;margin-bottom:18px}.section h2{margin:0 0 4px;font-size:16px;letter-spacing:-.01em}.section p.lede{margin:0 0 18px;font-size:13.5px;color:var(--text-muted)}.row{display:flex;align-items:center;justify-content:space-between;gap:16px}.switch{position:relative;flex:none;width:44px;height:26px}.switch input{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;margin:0;cursor:pointer}.switch span{position:absolute;top:0;right:0;bottom:0;left:0;border-radius:999px;background:var(--border);transition:background .15s;pointer-events:none}.switch span:after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:var(--surface);box-shadow:0 1px 3px #00000040;transition:transform .15s}.switch input:checked+span{background:var(--accent)}.switch input:checked+span:after{transform:translate(18px)}.switch input:focus-visible+span{box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 25%,transparent)}.muted{color:var(--text-muted);font-size:13px}.stack{display:flex;flex-direction:column;gap:10px;align-items:flex-start}@media(max-width:520px){.page{padding:20px 16px 48px}.card{padding:22px}}