:root{color-scheme:light;--bg:#0b1020;--card:hsla(0,0%,100%,.08);--border:hsla(0,0%,100%,.12);--text:hsla(0,0%,100%,.92);--muted:hsla(0,0%,100%,.65);--danger:#ff5c7a;--primary:#6aa6ff}*{box-sizing:border-box}body,html{height:100%}body{margin:0;background:radial-gradient(1200px 500px at 10% 0,rgba(106,166,255,.25),transparent 55%),radial-gradient(900px 500px at 100% 10%,rgba(255,92,122,.18),transparent 60%),var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,Apple Color Emoji,Segoe UI Emoji}.container{max-width:920px;margin:0 auto;padding:40px 20px}.header{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:20px}.brand .title{font-size:28px;font-weight:700;letter-spacing:-.02em}.brand .subtitle{margin-top:6px;color:var(--muted);font-size:14px}.stats{display:flex;align-items:center;gap:10px}.pill{display:inline-flex;padding:8px 12px;border:1px solid var(--border);border-radius:999px;background:hsla(0,0%,100%,.05);font-size:13px;color:var(--muted)}.card{border:1px solid var(--border);border-radius:16px;background:var(--card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:18px}.form{display:flex;gap:10px;margin-bottom:14px}.input{flex:1 1;padding:12px 14px;border-radius:12px;border:1px solid var(--border);background:rgba(0,0,0,.18);color:var(--text);outline:none}.input::placeholder{color:hsla(0,0%,100%,.45)}button{border:1px solid var(--border);border-radius:12px;padding:10px 14px;background:hsla(0,0%,100%,.06);color:var(--text);cursor:pointer}button:disabled{opacity:.6;cursor:not-allowed}.primary{background:rgba(106,166,255,.18);border-color:rgba(106,166,255,.35)}.secondary{background:hsla(0,0%,100%,.06)}.danger{background:rgba(255,92,122,.16);border-color:rgba(255,92,122,.38)}.error{border:1px solid rgba(255,92,122,.4);background:rgba(255,92,122,.12);padding:10px 12px;border-radius:12px;margin-bottom:12px;color:hsla(0,0%,100%,.92);font-size:13px;white-space:pre-wrap}.list{list-style:none;padding:0;margin:0;display:grid;grid-gap:10px;gap:10px}.empty{color:var(--muted);padding:14px 10px}.item{display:flex;gap:12px;padding:12px;border:1px solid var(--border);background:rgba(0,0,0,.12);border-radius:14px}.checkbox,.item{align-items:center}.checkbox{width:34px;height:34px;border-radius:10px;display:inline-flex;justify-content:center;font-weight:700;background:hsla(0,0%,100%,.06)}.checkbox.done{background:rgba(106,166,255,.2);border-color:rgba(106,166,255,.35)}.content{flex:1 1;min-width:0}.text{font-size:15px;line-height:1.3;word-break:break-word}.text.done{color:hsla(0,0%,100%,.55);text-decoration:line-through}.meta{margin-top:4px;color:hsla(0,0%,100%,.45);font-size:12px}.form.vertical{flex-direction:column;align-items:stretch}.muted{color:var(--muted)}.authLinks{margin-top:12px;font-size:14px}.link{color:var(--primary);text-decoration:none}.link:hover{text-decoration:underline}