:root{--bg:#0b0f1a;--bg2:#121828;--bg3:#1a2236;--line:#26304a;--tx:#e8ecf5;--mut:#8b96b0;--blue:#3d7bff;--gold:#f5c542}
html,body{background:var(--bg);color:var(--tx);font-family:Inter,system-ui,sans-serif;margin:0}
h1,h2,h3,.logo{font-family:"Space Grotesk",sans-serif}
.btn{border:0;border-radius:10px;padding:10px 16px;font-weight:600;cursor:pointer;color:var(--tx);background:var(--bg3)}
.btn.primary{background:var(--blue);color:#fff}.btn.primary:hover{background:#2f68e6}
.btn.ghost{background:transparent;border:1px solid var(--line)}
.btn.big{padding:14px 22px;font-size:16px}.btn.icon{padding:10px 12px}
.link{background:none;border:0;color:var(--blue);cursor:pointer;font-weight:600}
.input{background:var(--bg);border:1px solid var(--line);color:var(--tx);border-radius:10px;padding:10px 12px;width:100%;box-sizing:border-box;min-width:0}
.field{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--mut)}
.row{display:flex;gap:8px;align-items:center}.wrap{flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:8px;font-size:20px;font-weight:700}.logo b{color:var(--gold);margin-left:4px}
.landing{max-width:1080px;margin:0 auto;padding:16px 20px;background:radial-gradient(600px 400px at 80% 0,#1a3fbf55,transparent)}
.top{display:flex;justify-content:space-between;align-items:center}
.hero{padding:64px 0 40px}.kicker{color:var(--gold);font-weight:600;text-transform:uppercase;letter-spacing:.1em;font-size:12px}
.hero h1{font-size:clamp(40px,9vw,80px);line-height:1;margin:12px 0}.hero h1 span{color:var(--blue)}
.lead{color:var(--mut);font-size:18px;max-width:560px;margin-bottom:28px}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.feat{background:var(--bg2);border:1px solid var(--line);border-radius:16px;padding:20px}
.feat-ic{width:40px;height:40px;border-radius:12px;background:#3d7bff22;color:var(--gold);display:grid;place-items:center;font-size:20px}
.feat p{color:var(--mut);margin:0}.foot{color:var(--mut);text-align:center;padding:40px 0 20px;font-size:13px}
.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:20px}
.auth{background:var(--bg2);border:1px solid var(--line);border-radius:18px;padding:24px;width:100%;max-width:400px;display:flex;flex-direction:column;gap:14px}
.back{align-self:flex-start;padding:0;color:var(--mut)}
.app{display:grid;grid-template-columns:72px 260px 1fr;height:100dvh;overflow:hidden}
.rail{background:#070a12;display:flex;flex-direction:column;align-items:center;gap:8px;padding:12px 0;overflow-y:auto}
.rail-btn{width:48px;height:48px;flex:none;border-radius:16px;border:0;background:var(--bg3);color:var(--tx);font-weight:700;cursor:pointer;display:grid;place-items:center}
.rail-btn.on{background:var(--blue);border-radius:12px;box-shadow:0 0 0 2px var(--gold)}.rail-btn.add{color:var(--gold);font-size:22px}
.rail-sep{width:28px;height:2px;background:var(--line)}
.panel{background:var(--bg2);display:flex;flex-direction:column;min-width:0}
.panel-head{padding:14px;border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:6px}
.panel-body{flex:1;overflow-y:auto;padding:8px}
.sec{display:flex;justify-content:space-between;color:var(--mut);font-size:11px;text-transform:uppercase;letter-spacing:.08em;margin:14px 6px 6px}
.ch{display:flex;align-items:center;gap:8px;width:100%;background:none;border:0;color:var(--mut);padding:8px;border-radius:8px;cursor:pointer;text-align:left;font-size:15px}
.ch:hover,.ch.on{background:var(--bg3);color:var(--tx)}.ch:disabled{cursor:default}.hash{color:var(--gold);font-weight:700}
.av{width:36px;height:36px;flex:none;border-radius:50%;background:linear-gradient(135deg,var(--blue),#1a3fbf);display:grid;place-items:center;font-size:13px;font-weight:700;color:#fff}
.av.sm{width:28px;height:28px;font-size:11px}
.me{display:flex;align-items:center;gap:8px;padding:10px;background:#0e1322}.me-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chat{display:flex;flex-direction:column;min-width:0;min-height:0}
.chat-head{display:flex;align-items:center;gap:10px;padding:12px 14px;border-bottom:1px solid var(--line)}
.msgs{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:14px}
.msg{display:flex;gap:10px}.msg p{margin:2px 0;white-space:pre-wrap;word-break:break-word}
.msg-meta time{color:var(--mut);font-size:12px}.msg.mine .msg-meta b{color:var(--gold)}
.msg-img{max-width:min(320px,100%);border-radius:12px;margin-top:6px;display:block}
.composer{padding:10px;border-top:1px solid var(--line);padding-bottom:max(10px,env(safe-area-inset-bottom))}
.preview{display:flex;gap:8px;align-items:center;margin-bottom:8px}.preview img{height:60px;border-radius:8px}
.chat-empty{padding:20px}.back-m{display:none}
.toast{position:fixed;bottom:80px;left:50%;transform:translateX(-50%);z-index:20;width:min(92vw,400px)}
.overlay{position:fixed;inset:0;background:#000a;display:grid;place-items:center;z-index:30;padding:16px}
.modal{background:var(--bg2);border:1px solid var(--line);border-radius:16px;padding:20px;width:100%;max-width:380px;display:flex;flex-direction:column;gap:14px}
.modal h3{margin:0}
@media (max-width:760px){
.app{grid-template-columns:64px 1fr}.rail-btn{width:44px;height:44px}
.show-panel .chat{display:none}.show-chat .panel{display:none}.back-m{display:inline-block}
.hide-s{display:none}
}
.grow{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.call-btns{display:flex;gap:6px;flex-shrink:0}
.call-screen{position:fixed;inset:0;z-index:100;display:flex;flex-direction:column;justify-content:space-between;align-items:center;
padding:calc(48px + env(safe-area-inset-top)) 16px calc(28px + env(safe-area-inset-bottom));color:#fff;
background:radial-gradient(circle at 50% 30%,#1f3a8a 0%,#0b1020 70%);overflow:hidden}
.call-center{position:relative;z-index:2;text-align:center;display:flex;flex-direction:column;align-items:center;gap:8px}
.call-center h2{margin:8px 0 0;font-size:1.6rem;text-shadow:0 2px 8px #0008}
.call-status{margin:0;opacity:.85;font-variant-numeric:tabular-nums;text-shadow:0 2px 8px #0008}
.call-av{width:112px;height:112px;border-radius:50%;display:grid;place-items:center;font-size:2.4rem;font-weight:800;
background:linear-gradient(135deg,#2563eb,#f5c518);color:#0b1020}
.call-av.ring{animation:ring 1.6s infinite}
@keyframes ring{0%{box-shadow:0 0 0 0 #f5c51888}100%{box-shadow:0 0 0 34px #f5c51800}}
.call-bar{position:relative;z-index:2;display:flex;flex-wrap:wrap;justify-content:center;gap:14px}
.cbtn{display:flex;flex-direction:column;align-items:center;gap:6px;width:72px;padding:14px 0 10px;border:0;border-radius:20px;
background:#ffffff22;color:#fff;font-size:1.5rem;cursor:pointer;backdrop-filter:blur(8px)}
.cbtn span{font-size:.72rem;font-weight:600}
.cbtn.off{background:#fff;color:#0b1020}
.cbtn.end{background:#e11d48}.cbtn.end{font-size:1.5rem}.cbtn.end:first-letter{display:inline-block}
.cbtn.accept{background:#16a34a}
.incoming .cbtn{width:96px}
.remote-v{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:#000}
.local-v{position:absolute;z-index:3;right:14px;top:calc(14px + env(safe-area-inset-top));width:28vw;max-width:160px;aspect-ratio:3/4;
object-fit:cover;border-radius:14px;border:2px solid #fff4;background:#000;transform:scaleX(-1)}
.hidden{display:none}