:root{--red:#d71920;--dark:#111;--paper:#fff;--bg:#f4f5f7;--line:#ddd;--muted:#6a6a6a}
*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:#171717}
header{background:var(--dark);color:#fff;padding:14px 18px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:5}
.brand{display:flex;align-items:center;gap:10px}.brand-mark{width:42px;height:42px;border-radius:50%;background:var(--red);display:grid;place-items:center;font-weight:900}.brand span{display:block;font-size:.82rem;color:#ccc}
.user-chip{font-size:.8rem;background:#292929;padding:7px 10px;border-radius:20px}
nav{display:flex;gap:4px;overflow-x:auto;background:#fff;border-bottom:1px solid var(--line);padding:8px}
nav a{color:#222;text-decoration:none;padding:9px 12px;border-radius:8px;white-space:nowrap;font-weight:650}nav a:hover{background:#eee}
main{max-width:920px;margin:auto;padding:18px}
h1{margin-top:4px}.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;margin-bottom:14px;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.narrow{max-width:460px;margin:40px auto}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px}.tool{text-decoration:none;color:inherit}.tool:hover{border-color:#bbb;transform:translateY(-1px)}
label{display:block;font-weight:700;margin:12px 0 6px}input,textarea,select{width:100%;padding:12px;border:1px solid #bbb;border-radius:9px;font:inherit;margin-top:6px;background:#fff}
button{background:var(--red);color:#fff;border:0;border-radius:9px;padding:12px 16px;font-weight:800;font-size:1rem;cursor:pointer}button:hover{filter:brightness(.95)}
.flash{background:#fff3cd;border:1px solid #ffe69c;padding:10px;border-radius:9px;margin-bottom:12px}.muted,small{color:var(--muted)}
.results{margin-top:18px;display:grid;grid-template-columns:1fr 1fr;gap:10px}.results div{background:#f7f7f7;border-radius:10px;padding:14px}.results span{display:block;color:#666;font-size:.82rem;text-transform:uppercase}.results strong{font-size:1.55rem}.hidden{display:none}
.pin{background:var(--red);color:#fff;font-size:.7rem;padding:4px 7px;border-radius:99px;font-weight:800}.post p{white-space:pre-wrap}.check{display:flex;align-items:center;gap:8px}.check input{width:auto}
.chat{display:flex;flex-direction:column;gap:10px}.bubble{background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;max-width:80%}.bubble.mine{align-self:flex-end;background:#fff1f1;border-color:#f2b8ba}.bubble p{margin:6px 0;white-space:pre-wrap}
.checkrow{display:flex;gap:12px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px;margin-bottom:8px}.checkrow.done{opacity:.55}.tick{background:transparent;color:var(--red);font-size:1.6rem;padding:3px 8px}.checkrow small{display:block}
table{width:100%;border-collapse:collapse}td,th{text-align:left;border-bottom:1px solid #eee;padding:8px}
@media(max-width:600px){main{padding:12px}.user-chip{display:none}.results{grid-template-columns:1fr 1fr}header{padding:10px 12px}nav{position:sticky;top:62px;z-index:4}}