/* Design tokens (from replica/design/tokens.json). Change values here to rebrand. */
:root{
  --bg:#fff;--surface:#f6f7f9;--surface-hover:#eceef2;--border:#e3e6ea;--border-input:#868e98;
  --text:#14171c;--muted:#5b6470;--accent:#2f5bea;--accent-soft:#e8eefc;--on-accent:#fff;
  --danger:#c62f2f;--success:#1f7a4d;
  --p1:#c62f2f;--p2:#b45309;--p3:#2f5bea;--p4:#868e98;
  --shadow-card:0 1px 2px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.10);
  --ease:cubic-bezier(.2,.8,.2,1);color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#16181d;--surface:#1e2127;--surface-hover:#272b33;--border:#2e333c;--border-input:#7d8692;
  --text:#eceef2;--muted:#a3abb7;--accent:#7b9bff;--accent-soft:#232c4a;--on-accent:#0d1220;
  --danger:#ff8a8a;--success:#5fcf9a;--p1:#ff8a8a;--p2:#f0a35c;--p3:#7b9bff;--p4:#7d8692;
  --shadow-card:0 1px 2px rgba(0,0,0,.4);color-scheme:dark}}
*{box-sizing:border-box}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;background:var(--bg);color:var(--text);font:400 14px/20px Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
a{color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
h1{font:700 28px/34px Inter,sans-serif;margin:0}
button,input,select,textarea{font:inherit;color:inherit}
.btn{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 16px;border-radius:8px;border:1px solid transparent;font-weight:500;cursor:pointer;text-decoration:none;transition:background 120ms var(--ease)}
.btn.sm{height:32px;padding:0 12px}
.primary{background:var(--accent);color:var(--on-accent)}.primary:hover{filter:brightness(.92)}
.secondary{background:var(--surface);border-color:var(--border);color:var(--text)}.secondary:hover{background:var(--surface-hover)}
.danger{background:transparent;color:var(--danger);border-color:var(--danger)}
.link{background:none;border:0;color:var(--muted);cursor:pointer;padding:0;text-decoration:underline}
.in{width:100%;height:40px;border:1px solid var(--border-input);border-radius:8px;padding:0 12px;background:var(--bg)}
.in.sm{height:32px;padding:0 8px}
/* layout */
.app{display:grid;grid-template-columns:280px minmax(0,1fr);min-height:100vh}
.side{background:var(--surface);border-right:1px solid var(--border);padding:16px 12px;display:flex;flex-direction:column;gap:2px;position:sticky;top:0;height:100vh;overflow:auto}
.who{display:flex;align-items:center;gap:10px;margin-bottom:12px;padding:0 4px;flex-wrap:wrap}
.avatar{width:28px;height:28px;border-radius:999px;background:var(--accent);color:var(--on-accent);display:grid;place-content:center;font-weight:600}
.uname{font-weight:600;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.addbtn{margin-bottom:8px;justify-content:flex-start}
.nav{display:flex;align-items:center;gap:8px;height:36px;padding:0 10px;border-radius:8px;color:var(--text);text-decoration:none}
.nav:hover{background:var(--surface-hover)}
.nav.cur{background:var(--accent-soft);color:var(--accent);font-weight:600}
.nav .n{margin-left:auto;color:var(--muted);font-size:12px;font-weight:400}
.hash{font-weight:700}
.grp{color:var(--muted);font-size:12px;font-weight:500;padding:16px 10px 4px}
.newproj{padding:4px 10px;color:var(--muted)}.newproj summary{cursor:pointer;height:28px;display:flex;align-items:center}
.newproj form{display:flex;gap:6px;align-items:center;margin-top:4px}.newproj input[type=color]{width:32px;height:32px;padding:0;border:1px solid var(--border-input);border-radius:8px;background:none}
.main{padding:40px 32px 80px;max-width:880px;width:100%;margin:0 auto}
.head{margin-bottom:20px}.sub{color:var(--muted);margin:4px 0 0}
.grpsec h2{font:600 14px/20px Inter,sans-serif;margin:20px 0 4px;padding-bottom:6px;border-bottom:1px solid var(--border)}
.grpsec h2.over{color:var(--danger)}
/* tasks */
.task{display:flex;gap:12px;padding:10px 8px;border-bottom:1px solid var(--border);border-radius:8px}
.task:hover{background:var(--surface)}
.tg{margin:0}
.body{min-width:0;flex:1}
.t{color:var(--text);text-decoration:none;font-weight:500;overflow-wrap:anywhere}.t:hover{text-decoration:underline}
.task.done .t{color:var(--muted);text-decoration:line-through}
.desc{color:var(--muted);font-size:12px;line-height:16px;margin-top:2px}
.meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:12px;line-height:16px;margin-top:4px}
.due.over{color:var(--danger)}.due.today{color:var(--success)}
.chk{appearance:none;-webkit-appearance:none;width:20px;height:20px;border-radius:999px;border:2px solid var(--p4);margin:0;cursor:pointer;display:grid;place-content:center;background:transparent;flex:none}
.chk.p1{border-color:var(--p1)}.chk.p2{border-color:var(--p2)}.chk.p3{border-color:var(--p3)}
.chk:hover:not(:checked){background:color-mix(in srgb,currentColor 0%,var(--surface-hover))}
.chk:checked{background:var(--success);border-color:var(--success)}
.chk:checked::after{content:"";width:5px;height:9px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg) translate(-1px,-1px)}
.add{display:flex;align-items:center;gap:8px;color:var(--muted);height:36px;padding:0 8px;background:none;border:0;margin-top:8px;border-radius:8px;cursor:pointer}
.add:hover{color:var(--accent)}
.card{border:1px solid var(--border);border-radius:12px;padding:12px;box-shadow:var(--shadow-card);margin-top:12px;background:var(--bg)}
.card[hidden]{display:none}
.title-in,.desc-in{width:100%;border:0;background:none;padding:4px 0;resize:vertical}
.title-in{font-weight:600;font-size:16px;line-height:24px}
.title-in:focus,.desc-in:focus{outline:none}
.row{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}
.fld{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--muted);flex:1 1 140px}
.foot{display:flex;justify-content:flex-end;gap:8px;border-top:1px solid var(--border);margin-top:12px;padding-top:12px}
.delproj{margin-top:32px}
.empty{padding:32px 8px;color:var(--muted)}
.toast{position:fixed;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));background:var(--text);color:var(--bg);padding:12px 16px;border-radius:8px;box-shadow:0 12px 32px rgba(16,24,40,.25);z-index:10;transition:opacity 200ms var(--ease)}
/* auth */
.authbody{display:grid;place-items:center;min-height:100vh;padding:16px}
.auth{width:100%;max-width:380px}.auth h1{margin-bottom:16px}
.auth label{display:block;font-weight:500;margin:12px 0 4px}.auth .btn{width:100%;margin-top:20px}
.msg{color:var(--danger);margin:0 0 8px}.alt{color:var(--muted);margin-top:16px}
@media (max-width:760px){
  .app{grid-template-columns:1fr}
  .side{position:static;height:auto;border-right:0;border-bottom:1px solid var(--border)}
  .main{padding:20px 16px 80px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}