:root{--bg:#f5f7f8;--card:#fff;--ink:#0f1a1c;--muted:#5b6b70;--line:#e2e8ea;--accent:#0f766e;--accent-ink:#fff;--soft:#e6f3f1;--danger:#dc2626;--ok:#16a34a;--bubble-in:#eef1f2;--bubble-out:#0f766e}
@media (prefers-color-scheme:dark){:root{--bg:#0d1415;--card:#151e20;--ink:#e7eeef;--muted:#93a3a7;--line:#263235;--accent:#2dd4bf;--accent-ink:#04201d;--soft:#173331;--bubble-in:#1f2b2d;--bubble-out:#14b8a6}}
*{box-sizing:border-box}html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--ink);font:15px/1.45 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
input,textarea{font:inherit;color:inherit}
.wrap{max-width:460px;margin:0 auto;min-height:100%;display:flex;flex-direction:column;padding:0 16px}
header{padding:18px 0 10px;display:flex;align-items:center;gap:12px}
header img{width:36px;height:36px}
.me{flex:1;min-width:0}.me small{display:block;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.06em}
.me b{font-size:20px;font-variant-numeric:tabular-nums}
.dot{width:9px;height:9px;border-radius:50%;background:var(--muted);display:inline-block;margin-right:6px}
.dot.on{background:var(--ok)}
.status{font-size:12px;color:var(--muted);display:flex;align-items:center}
nav{display:flex;gap:4px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:4px;margin:6px 0 14px}
nav button{flex:1;padding:8px;border-radius:9px;color:var(--muted);font-weight:600}
nav button.on{background:var(--soft);color:var(--accent)}
nav .badge{background:var(--danger);color:#fff;border-radius:10px;padding:0 6px;font-size:11px;margin-left:4px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px}
.hidden{display:none!important}
.numbox{display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--line);padding:4px 0 12px;margin-bottom:12px}
.numbox input{flex:1;border:0;background:none;font-size:28px;text-align:center;outline:none;font-variant-numeric:tabular-nums;min-width:0}
.pad{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.pad button{background:var(--bg);border-radius:14px;padding:12px 0;font-size:24px;font-weight:500;line-height:1.1}
.pad button small{display:block;font-size:10px;color:var(--muted);letter-spacing:.15em;min-height:12px}
.pad button:active{background:var(--soft)}
.callbtn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;margin-top:14px;padding:14px;border-radius:14px;background:var(--ok);color:#fff;font-weight:700;font-size:16px}
.callbtn.end{background:var(--danger)}
.callbtn:disabled{opacity:.5;cursor:default}
.from{color:var(--muted);font-size:12px;text-align:center;margin-top:10px}
.incall{text-align:center;padding:8px 0}
.incall .who{font-size:26px;font-weight:700;font-variant-numeric:tabular-nums}
.incall .st{color:var(--muted);margin:4px 0 14px}
.row{display:flex;gap:10px;justify-content:center;margin-bottom:12px}
.pill{padding:8px 14px;border-radius:999px;border:1px solid var(--line);font-weight:600;font-size:14px}
.pill.on{background:var(--soft);color:var(--accent);border-color:var(--accent)}
.list{display:flex;flex-direction:column}
.item{display:flex;align-items:center;gap:10px;padding:11px 4px;border-bottom:1px solid var(--line);text-align:left;width:100%}
.item:last-child{border-bottom:0}
.item .main{flex:1;min-width:0}.item .main b{display:block;font-variant-numeric:tabular-nums}
.item .main span{color:var(--muted);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block}
.item time{color:var(--muted);font-size:12px;white-space:nowrap}
.item .unread{width:8px;height:8px;border-radius:50%;background:var(--accent)}
.missed b{color:var(--danger)}
.empty{color:var(--muted);text-align:center;padding:24px 0}
.thread{display:flex;flex-direction:column;gap:6px;max-height:52vh;overflow-y:auto;padding:4px 0 10px}
.bubble{max-width:80%;padding:8px 12px;border-radius:16px;white-space:pre-wrap;word-wrap:break-word}
.bubble.in{background:var(--bubble-in);align-self:flex-start;border-bottom-left-radius:4px}
.bubble.out{background:var(--bubble-out);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.bubble time{display:block;font-size:11px;opacity:.7;margin-top:2px}
.compose{display:flex;gap:8px;align-items:flex-end;border-top:1px solid var(--line);padding-top:10px}
.compose textarea{flex:1;border:1px solid var(--line);background:var(--bg);border-radius:12px;padding:9px 12px;resize:none;outline:none;min-height:42px}
.compose button,.primary{background:var(--accent);color:var(--accent-ink);border-radius:12px;padding:10px 16px;font-weight:700}
.field{width:100%;border:1px solid var(--line);background:var(--bg);border-radius:12px;padding:10px 12px;outline:none;margin-bottom:10px}
.toolbar{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.toolbar b{flex:1}
.back{color:var(--accent);font-weight:600}
.count{font-size:12px;color:var(--muted)}
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);display:flex;align-items:center;justify-content:center;padding:16px;z-index:10}
.overlay .card{width:100%;max-width:360px;text-align:center}
.ring{animation:pulse 1.2s infinite}
@keyframes pulse{50%{transform:scale(1.04)}}
.btns{display:flex;gap:10px;margin-top:14px}.btns button{flex:1}
.toast{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:12px;max-width:90%;z-index:20}
footer{margin-top:auto;padding:18px 0;text-align:center;font-size:12px;color:var(--muted)}footer a{color:var(--muted)}
.login{max-width:360px;margin:12vh auto 0}
.login h1{font-size:22px;margin:12px 0 4px}.login p{color:var(--muted);margin:0 0 16px}
.err{color:var(--danger);font-size:14px;min-height:20px}
.notifcard{margin-top:14px;font-size:14px}.notifcard b{display:block;margin-bottom:2px}.notifcard #notifState{color:var(--muted)}.notifcard .row{justify-content:flex-start}