:root{
  --bg:#0d1117;
  --bg2:#101826;
  --panel:#151c28;
  --panel2:#1b2433;
  --panel3:#222d40;
  --line:#2d3a4f;
  --text:#eef4ff;
  --muted:#9aa8bc;
  --accent:#78a6ff;
  --accent2:#6be7ff;
  --success:#42d392;
  --danger:#ff7373;
  --warn:#ffd166;
  --shadow:0 22px 70px rgba(0,0,0,.38);
  --radius:22px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  color:var(--text);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  background:
    radial-gradient(circle at 15% -10%,rgba(120,166,255,.24),transparent 32%),
    radial-gradient(circle at 85% 0%,rgba(107,231,255,.13),transparent 28%),
    linear-gradient(180deg,#0d1117,#0b1018 60%,#090d13);
  overflow:hidden;
}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
button{cursor:pointer}
.hidden{display:none!important}
.app-shell{height:100vh;display:grid;grid-template-columns:340px minmax(0,1fr);gap:18px;padding:18px}
.sidebar{display:flex;flex-direction:column;gap:14px;min-width:0;overflow:auto;padding-right:2px}
.brand-row{padding:2px 2px 4px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{width:52px;height:52px;border-radius:18px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent2));box-shadow:var(--shadow);font-size:24px;color:#07101d}
.brand strong{display:block;font-size:26px;line-height:1.05}
.brand small{display:block;color:var(--muted);margin-top:4px}
.panel{background:rgba(21,28,40,.88);border:1px solid rgba(255,255,255,.07);border-radius:var(--radius);box-shadow:0 14px 40px rgba(0,0,0,.2);padding:14px;backdrop-filter:blur(14px)}
.profile-main{display:flex;align-items:center;gap:12px;margin-bottom:12px}.avatar,.room-avatar{display:grid;place-items:center;font-weight:900;color:#07101d;background:linear-gradient(135deg,var(--accent),var(--accent2))}.avatar{width:44px;height:44px;border-radius:16px}.room-avatar{width:50px;height:50px;border-radius:18px;font-size:21px}.profile-line{font-size:14px;line-height:1.35;word-break:break-word}.muted-label{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.12em}.profile-actions,.button-row,.incoming-actions,.call-controls{display:flex;gap:8px;flex-wrap:wrap}.section-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}.section-title h2{margin:0;font-size:17px}.btn,.icon-btn,.send-btn,.chat-tab,.emoji-btn,.file-chip,.react-btn{border:0;outline:none;transition:transform .15s ease,filter .15s ease,background .15s ease,border-color .15s ease}.btn:hover,.icon-btn:hover,.send-btn:hover,.chat-tab:hover,.emoji-btn:hover,.file-chip:hover,.react-btn:hover{transform:translateY(-1px);filter:brightness(1.08)}.btn{border-radius:13px;padding:10px 13px;color:var(--text);background:var(--panel3);border:1px solid rgba(255,255,255,.08)}.btn.tiny{padding:8px 10px;font-size:13px}.btn.soft{background:rgba(255,255,255,.06)}.btn.primary,.send-btn{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#06111f;font-weight:800;border:0}.btn.danger{background:rgba(255,115,115,.13);border-color:rgba(255,115,115,.32);color:#ffd7d7}.btn.full{width:100%;justify-content:center}.icon-btn{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:rgba(255,255,255,.06);color:var(--text);border:1px solid rgba(255,255,255,.08)}.chat-tab{width:100%;display:flex;align-items:center;gap:12px;text-align:left;border-radius:16px;background:rgba(255,255,255,.045);color:var(--text);border:1px solid rgba(255,255,255,.06);padding:12px;margin-bottom:8px}.chat-tab.active{background:linear-gradient(135deg,rgba(120,166,255,.22),rgba(107,231,255,.10));border-color:rgba(120,166,255,.38)}.chat-tab-icon{width:38px;height:38px;border-radius:14px;display:grid;place-items:center;background:rgba(255,255,255,.08);font-weight:900}.chat-tab-text{min-width:0}.chat-tab-text strong{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-tab-text small{display:block;color:var(--muted);margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation-list,.stack,.picker-list{display:flex;flex-direction:column;gap:8px}.drawer{border-top:1px solid rgba(255,255,255,.07);margin-top:12px;padding-top:12px}.field-label{display:block;margin:10px 0 6px;color:var(--muted);font-size:13px}.field{width:100%;border:1px solid rgba(255,255,255,.08);border-radius:14px;background:#0f1623;color:var(--text);padding:11px 12px;outline:none}.field:focus,textarea:focus{border-color:rgba(120,166,255,.55);box-shadow:0 0 0 4px rgba(120,166,255,.12)}.picker-item,.request-item,.empty-card,.member-chip{background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.06);border-radius:14px;padding:11px;color:var(--text)}.picker-item{cursor:pointer}.picker-item:hover{border-color:rgba(120,166,255,.35);background:rgba(120,166,255,.08)}.selected-members{display:flex;gap:7px;flex-wrap:wrap;margin:10px 0}.member-chip{display:inline-flex;align-items:center;gap:6px;padding:8px 10px;cursor:pointer}.chat-main{min-width:0;height:calc(100vh - 36px);display:flex;flex-direction:column;background:rgba(21,28,40,.82);border:1px solid rgba(255,255,255,.07);border-radius:28px;overflow:hidden;box-shadow:var(--shadow);backdrop-filter:blur(18px)}.chat-header{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px 20px;border-bottom:1px solid rgba(255,255,255,.07);background:rgba(255,255,255,.025)}.room-info{display:flex;align-items:center;gap:14px;min-width:0}.room-copy{min-width:0}.chat-header h1{margin:3px 0 0;font-size:28px;line-height:1.1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.typing-line{height:18px;color:var(--accent2);font-size:13px;margin-top:3px}.header-actions{display:flex;align-items:center;gap:9px;flex-wrap:wrap;justify-content:flex-end}.status-pill{display:inline-flex;align-items:center;gap:7px;border-radius:999px;padding:10px 13px;border:1px solid rgba(66,211,146,.28);background:rgba(66,211,146,.12);color:#c9ffe2;font-weight:700;font-size:13px}.status-pill::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 0 4px rgba(66,211,146,.14)}.message-list{flex:1;overflow:auto;padding:22px;background:linear-gradient(180deg,rgba(255,255,255,.01),transparent),radial-gradient(circle at 50% 0%,rgba(120,166,255,.06),transparent 34%)}.day-empty{height:100%;display:grid;place-items:center;color:var(--muted);text-align:center}.msg{max-width:min(760px,92%);margin:0 0 14px;padding:13px 15px;border-radius:18px 18px 18px 6px;background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.07);box-shadow:0 10px 26px rgba(0,0,0,.15)}.msg.self{margin-left:auto;border-radius:18px 18px 6px 18px;background:linear-gradient(135deg,rgba(120,166,255,.23),rgba(107,231,255,.13));border-color:rgba(120,166,255,.25)}.msg-meta{display:flex;justify-content:space-between;gap:12px;align-items:center;color:var(--muted);font-size:12px;margin-bottom:7px}.msg-meta strong{color:#dce9ff}.msg-text{white-space:pre-wrap;word-break:break-word;line-height:1.45}.attachment{display:inline-flex;align-items:center;gap:8px;margin-top:10px;border-radius:999px;padding:8px 11px;background:rgba(120,166,255,.13);border:1px solid rgba(120,166,255,.25);color:#e7f0ff}.attachment::before{content:"📎"}.reactions{display:flex;gap:7px;flex-wrap:wrap;margin-top:11px}.react-btn{border-radius:999px;padding:6px 9px;background:#0f1623;color:var(--text);border:1px solid rgba(255,255,255,.07);cursor:pointer}.composer{border-top:1px solid rgba(255,255,255,.07);padding:14px 16px 16px;background:rgba(255,255,255,.025)}.guest-notice{margin-bottom:10px;border-radius:14px;padding:10px 12px;background:rgba(255,209,102,.11);border:1px solid rgba(255,209,102,.25);color:#fff2c6;font-size:14px}.guest-notice a{text-decoration:underline;font-weight:800}.emoji-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:10px}.emoji-btn{width:38px;height:38px;border-radius:13px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.07);color:var(--text)}.file-chip{display:inline-flex;align-items:center;justify-content:center;min-height:38px;border-radius:999px;padding:0 13px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.07);color:var(--text);cursor:pointer}.file-chip input{display:none}.send-row{display:flex;gap:10px;align-items:flex-end}textarea{width:100%;min-height:54px;max-height:170px;resize:vertical;border:1px solid rgba(255,255,255,.08);border-radius:17px;background:#0f1623;color:var(--text);padding:14px 15px;outline:none}.send-btn{min-width:100px;border-radius:16px;padding:14px 18px}.incoming-card{position:fixed;right:18px;top:18px;z-index:50;display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;max-width:min(620px,calc(100vw - 36px));background:rgba(21,28,40,.96);border:1px solid rgba(255,255,255,.09);border-radius:22px;padding:14px;box-shadow:var(--shadow)}.incoming-icon{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#06111f}.incoming-card p{margin:4px 0 0;color:var(--muted)}.call-panel{position:fixed;right:18px;bottom:18px;z-index:45;width:min(780px,calc(100vw - 36px));background:rgba(21,28,40,.97);border:1px solid rgba(255,255,255,.09);border-radius:24px;padding:14px;box-shadow:var(--shadow)}.call-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.call-head strong{display:block;font-size:18px}.call-head span{display:block;color:var(--muted);font-size:13px;margin-top:3px}.video-grid{display:grid;grid-template-columns:1fr 220px;gap:10px}.video-grid video{width:100%;min-height:170px;max-height:420px;background:#020407;border-radius:18px;object-fit:cover;border:1px solid rgba(255,255,255,.08)}.call-controls{justify-content:flex-end;margin-top:12px}.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);z-index:70;background:#0f1623;border:1px solid rgba(255,255,255,.12);box-shadow:var(--shadow);border-radius:999px;padding:11px 15px;color:var(--text)}
::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:#35435a;border-radius:999px}::-webkit-scrollbar-track{background:transparent}
@media(max-width:980px){body{overflow:auto}.app-shell{height:auto;min-height:100vh;grid-template-columns:1fr;padding:12px}.sidebar{order:2;overflow:visible}.chat-main{order:1;height:70vh}.chat-header{align-items:flex-start}.header-actions{max-width:260px}.video-grid{grid-template-columns:1fr}.incoming-card{left:12px;right:12px;grid-template-columns:auto 1fr}.incoming-actions{grid-column:1/-1}}
@media(max-width:620px){.app-shell{gap:12px}.panel,.chat-main{border-radius:20px}.chat-header{flex-direction:column;align-items:stretch}.header-actions{max-width:none;justify-content:flex-start}.status-pill{width:100%;justify-content:center}.send-row{flex-direction:column;align-items:stretch}.send-btn{width:100%}.brand strong{font-size:22px}.chat-header h1{font-size:24px}.call-panel{left:12px;right:12px;bottom:12px;width:auto}.incoming-card{top:12px}.profile-actions .btn{flex:1;text-align:center}}