:root{
  --bg:#f4f6f8;--fg:#15181c;--muted:#5b6672;--card:#fff;--line:#e1e5ea;--head:#eef1f5;
  --accent:#1f6feb;--accent-fg:#fff;--on:#1a7f37;--off:#b6bfca;--danger:#c62828;--focus:#1f6feb55;
  --radius:12px;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#101316;--fg:#e8eaed;--muted:#9aa3ad;--card:#191d22;--line:#2b3138;--head:#20252b;
  --accent:#4c8dff;--accent-fg:#0b1220;--on:#3fb950;--off:#4a535d;--danger:#ff6b6b;--focus:#4c8dff66;
}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.45 system-ui,-apple-system,"Segoe UI",sans-serif}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}

.top{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px max(16px,3vw);border-bottom:1px solid var(--line);background:var(--card);position:sticky;top:0;z-index:5}
.brand{display:flex;align-items:center;gap:10px}
.logo{width:32px;height:32px;border-radius:9px;background:var(--accent);color:var(--accent-fg);display:grid;place-items:center;font-weight:700}
h1{font-size:1.05rem;margin:0}
.who{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:.9rem}
.link{background:none;border:0;color:var(--accent);cursor:pointer;font:inherit;padding:6px}

main{max-width:1680px;margin:0 auto;padding:20px max(16px,3vw)}
.intro{margin:0 0 16px;color:var(--muted)}
.intro strong{color:var(--fg)}
.bar{display:flex;gap:8px;margin-bottom:16px}
input[type=search],input[type=text],input[type=email],#newForm input{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--fg);font:inherit}
label{display:block;margin-bottom:10px;font-size:.9rem;color:var(--muted)}
.btn{padding:10px 16px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--fg);font:inherit;cursor:pointer;text-decoration:none;white-space:nowrap;display:inline-block}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-fg);font-weight:600}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:16px}
.row{display:flex;gap:8px}
#newForm{max-width:520px}
#newOut code{display:block;margin-top:6px;padding:8px;background:var(--head);border-radius:8px;word-break:break-all}

/* matriz: pessoas x sistemas. --n = quantidade de sistemas (definida via JS, compativel com a CSP) */
#list{--n:1;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:clip}
.hd,.person{display:grid;grid-template-columns:minmax(220px,1.3fr) repeat(var(--n),minmax(96px,1fr));align-items:center;gap:0 8px;padding:10px 16px}
.hd{background:var(--head);border-bottom:1px solid var(--line);position:sticky;top:57px;z-index:4;align-items:end}
.hd .sys{font-size:.78rem;font-weight:600;line-height:1.2;text-align:center;overflow-wrap:anywhere}
.hd .sys small{display:block;font-weight:400;color:var(--muted);margin-top:2px}
.hd .who-col{font-size:.78rem;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.person{border-bottom:1px solid var(--line)}
.person:last-child{border-bottom:0}
.person:hover{background:var(--head)}
.id{display:flex;align-items:center;gap:12px;min-width:0}
.avatar{flex:none;width:38px;height:38px;border-radius:50%;background:var(--head);border:1px solid var(--line);display:grid;place-items:center;font-weight:600;font-size:.85rem;color:var(--muted)}
.id h2{font-size:.95rem;margin:0;overflow-wrap:anywhere}
.id .mail{color:var(--muted);font-size:.82rem;overflow-wrap:anywhere}
.tag{font-size:.72rem;border:1px solid var(--line);border-radius:99px;padding:0 8px;color:var(--muted);margin-left:6px;white-space:nowrap}
.person.off .id{opacity:.6}

/* interruptor */
.sw{display:flex;justify-content:center;align-items:center;margin:0;padding:10px 0;cursor:pointer;color:var(--fg);position:relative}
.sw .nm{display:none}
.sw input{position:absolute;opacity:0;width:100%;height:100%;margin:0;cursor:pointer}
.sw .track{width:42px;height:24px;border-radius:99px;background:var(--off);position:relative;transition:background .15s;flex:none}
.sw .track::after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;transition:transform .15s;box-shadow:0 1px 2px #0004}
.sw input:checked+.track{background:var(--on)}
.sw input:checked+.track::after{transform:translateX(18px)}
.sw input:focus-visible+.track{outline:3px solid var(--focus);outline-offset:2px}
.sw input:disabled+.track{opacity:.55}
.sw.busy .track{animation:pulse 1s ease-in-out infinite}
@keyframes pulse{50%{opacity:.4}}
.sw.err .track{box-shadow:0 0 0 2px var(--danger)}
.sw .msg{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
.sw.err::after{content:"!";color:var(--danger);font-weight:700;margin-left:8px}
@media (prefers-reduced-motion:reduce){.sw .track,.sw .track::after{transition:none}.sw.busy .track{animation:none}}

#state{color:var(--muted);padding:8px 0}
#loginMsg{color:var(--danger)}
#login{max-width:420px;text-align:center;padding-top:12vh}

/* estreito: um cartao por pessoa, sistemas em lista */
@media (max-width:1100px){
  #list{background:none;border:0;overflow:visible;display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
  .hd{display:none}
  .person{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px}
  .person .id{margin-bottom:8px}
  .sw{justify-content:space-between;border-top:1px solid var(--line);padding:10px 0;gap:8px}
  .sw .nm{display:inline;order:-1;flex:1}
  .sw input{left:0;top:0}
  .sw.err::after{content:none}
  .sw.err .msg{position:static;width:auto;height:auto;clip-path:none;color:var(--danger);font-size:.78rem}
}
@media (max-width:600px){.bar{flex-direction:column}.who span{display:none}}