[hidden]{display:none!important}:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#edf2f7;background:#07111e;color-scheme:dark}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 10% 0%,rgba(44,202,160,.18),transparent 30%),radial-gradient(circle at 95% 95%,rgba(72,132,255,.16),transparent 30%),#07111e}button,input,select{font:inherit}button{cursor:pointer}.app-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.auth-card{width:min(620px,100%);padding:46px;border:1px solid rgba(255,255,255,.09);border-radius:28px;background:rgba(13,25,41,.9);box-shadow:0 28px 80px rgba(0,0,0,.35);backdrop-filter:blur(22px)}.brand-mark,.mini-mark{display:grid;place-items:center;background:linear-gradient(145deg,#39d0a4,#5f8cff);color:#05101a;font-weight:900;box-shadow:0 12px 28px rgba(57,208,164,.24)}.brand-mark{width:64px;height:64px;border-radius:20px;font-size:32px;margin-bottom:22px}.mini-mark{width:40px;height:40px;border-radius:13px;font-size:20px}.eyebrow{color:#67d9b9;font-weight:800;letter-spacing:.18em;font-size:12px}h1{font-size:clamp(36px,7vw,62px);line-height:.98;margin:12px 0 18px;letter-spacing:-.045em}.lead{color:#9fb0c4;font-size:18px;line-height:1.6;margin-bottom:26px}label{display:block;font-size:13px;color:#a9b8c9;margin:13px 0 8px}input,select{width:100%;border:1px solid rgba(255,255,255,.1);outline:none;background:#0a1524;color:#f3f7fb;border-radius:14px;padding:14px 15px}input:focus,select:focus{border-color:rgba(74,214,175,.7);box-shadow:0 0 0 3px rgba(74,214,175,.08)}.auth-tabs{display:flex;gap:8px;margin:10px 0 18px}.tab{flex:1;border:1px solid rgba(255,255,255,.08);background:transparent;color:#8fa1b4;border-radius:12px;padding:11px}.tab.active{background:rgba(83,214,177,.1);color:#75dfc1;border-color:rgba(83,214,177,.18)}.primary-btn{width:100%;border:0;border-radius:14px;padding:15px 18px;margin-top:18px;background:#53d6b1;color:#06131d;font-weight:800}.error{color:#ff8f9e;min-height:24px;padding-top:8px;font-size:13px}.notice,.warning{margin:10px 0 0;padding:13px 15px;display:grid;gap:4px;border-radius:14px;font-size:12px;line-height:1.5}.notice{background:rgba(95,140,255,.08);border:1px solid rgba(95,140,255,.18);color:#b9c8db}.warning{background:rgba(255,157,82,.09);border:1px solid rgba(255,157,82,.2)}.warning strong{color:#ffbf8c}.warning span{color:#aeb9c8}.auth-actions{display:flex;gap:10px;margin-top:6px;flex-wrap:wrap}.secondary-btn{border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.035);color:#cbd8e5;padding:10px 13px;border-radius:12px}.secondary-btn.small{font-size:11px;padding:8px 10px}.security-note{margin-top:22px;display:grid;gap:5px;padding:16px;border-radius:16px;background:rgba(83,214,177,.07);border:1px solid rgba(83,214,177,.13)}.security-note strong{color:#72dfc0;font-size:13px}.security-note span{color:#8799ad;font-size:13px;line-height:1.5}.chat-app{width:min(1180px,100%);height:min(830px,calc(100vh - 48px));min-height:600px;display:grid;grid-template-columns:320px 1fr;border:1px solid rgba(255,255,255,.08);border-radius:26px;overflow:hidden;background:rgba(10,20,34,.96);box-shadow:0 32px 100px rgba(0,0,0,.4)}.sidebar{position:relative;padding:22px;background:#0b1726;border-right:1px solid rgba(255,255,255,.07);display:flex;flex-direction:column;min-height:0}.sidebar-brand{display:flex;align-items:center;gap:12px;margin-bottom:22px}.sidebar-brand>div:last-child{display:grid;gap:3px}.sidebar-brand small{color:#6bdaba;font-size:11px}.me-card{display:flex;align-items:center;gap:11px;padding:14px;border-radius:16px;background:rgba(255,255,255,.035)}.me-card>div{display:grid;gap:3px;min-width:0;flex:1}.me-card small{color:#75879a;font-size:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:#18283c;color:#d9e7f3;flex:0 0 auto}.avatar.self{color:#54d7b1;font-size:15px}.icon-btn,.back-btn,.lock-badge,.attach-btn{border:0;color:inherit;background:rgba(255,255,255,.05)}.icon-btn{width:34px;height:34px;border-radius:10px}.section-label{margin:24px 8px 10px;color:#627387;font-size:10px;font-weight:800;letter-spacing:.16em}.empty-users{color:#708196;font-size:12px;line-height:1.55;padding:10px 8px}.users-list{overflow:auto;min-height:0}.user-row{width:100%;display:flex;align-items:center;gap:11px;padding:11px;border:0;background:transparent;color:inherit;border-radius:14px;text-align:left;margin-bottom:4px}.user-row:hover,.user-row.active{background:rgba(255,255,255,.055)}.user-meta{display:grid;gap:4px;min-width:0;flex:1}.user-meta small{color:#7f91a4;font-size:11px}.online-dot{width:6px;height:6px;display:inline-block;background:#50d6ad;border-radius:50%;margin-right:5px}.online-dot.offline{background:#657487}.unread{margin-left:auto;min-width:20px;height:20px;padding:0 6px;border-radius:10px;display:grid;place-items:center;background:#53d6b1;color:#06131d;font-size:10px;font-weight:900}.sidebar-footer{margin-top:auto;padding-top:14px;display:grid;gap:10px}.sidebar-footer span{font-size:10px;line-height:1.4;color:#65768a}.conversation{display:grid;grid-template-rows:auto auto auto 1fr auto;min-width:0;min-height:0}.chat-header{display:flex;align-items:center;gap:10px;padding:18px 22px;border-bottom:1px solid rgba(255,255,255,.07)}.chat-heading{min-width:0;flex:1}.chat-header h2{margin:0 0 4px;font-size:17px}.chat-header span{color:#72849a;font-size:11px}.lock-badge{width:38px;height:38px;border-radius:13px}.back-btn{display:none;width:36px;height:36px;border-radius:12px;font-size:28px;line-height:1}.messages{overflow-y:auto;padding:28px;background:linear-gradient(180deg,rgba(10,20,34,.62),rgba(8,16,28,.9))}.empty-chat{height:100%;display:grid;place-items:center;align-content:center;text-align:center;color:#7b8ea3}.empty-chat h2{color:#dce7f2;margin:14px 0 6px}.empty-chat p{max-width:430px;line-height:1.6;margin:0}.lock-orb{width:68px;height:68px;display:grid;place-items:center;border-radius:22px;background:rgba(83,214,177,.07);font-size:28px}.message-row{display:flex;margin:8px 0}.message-row.out{justify-content:flex-end}.message-row.in{justify-content:flex-start}.message-row.system{justify-content:center}.bubble{max-width:min(72%,560px);padding:11px 13px 7px;border-radius:17px;background:#15263a;box-shadow:0 10px 24px rgba(0,0,0,.12)}.message-row.out .bubble{background:#214f49;border-bottom-right-radius:5px}.message-row.in .bubble{border-bottom-left-radius:5px}.message-row.system .bubble{background:rgba(255,255,255,.04);color:#8ea0b4;font-size:12px}.message-text{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.45}.message-image{display:block;max-width:min(420px,70vw);max-height:420px;border-radius:12px;margin-bottom:6px}.message-time{margin-top:5px;color:rgba(226,237,246,.5);font-size:9px;text-align:right}.expiry-badge{font-size:9px;margin-right:6px;color:#d5b985}.composer-wrap{border-top:1px solid rgba(255,255,255,.07)}.composer-options{display:flex;align-items:center;gap:8px;padding:8px 18px 0}.composer-options label{margin:0;font-size:10px;color:#6f8296}.composer-options select{width:auto;padding:7px 9px;border-radius:10px;font-size:11px}.composer{display:flex;gap:10px;padding:10px 18px 16px}.composer input{border-radius:18px}.composer>button{flex:0 0 48px;width:48px;border:0;border-radius:16px;font-weight:900}.composer #sendBtn{background:#52d5b0;color:#05121c}.attach-btn{font-size:22px}.composer.disabled{opacity:.55}.upload-hint{min-height:16px;padding:0 18px 6px;color:#8ea0b4;font-size:10px}.security-panel{padding:12px 18px;border-bottom:1px solid rgba(255,255,255,.07);background:rgba(82,213,176,.045);display:grid;gap:5px}.security-panel strong{color:#78e2c3;font-size:12px}.security-panel span{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#d8e5ef;font-size:11px;word-spacing:3px}.security-panel small{color:#75879b;line-height:1.45}.key-warning{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 18px;background:rgba(255,148,85,.1);border-bottom:1px solid rgba(255,148,85,.18)}.key-warning>div{display:grid;gap:3px}.key-warning strong{color:#ffc08e;font-size:12px}.key-warning span{color:#aab6c5;font-size:11px}.key-warning button{border:0;border-radius:10px;padding:9px 11px;background:#ffc08e;color:#2a1608;font-weight:800;font-size:11px;white-space:nowrap}.network-banner{position:fixed;z-index:20;top:0;left:0;right:0;padding:9px 14px;text-align:center;background:#6e2734;color:#ffe6eb;font-size:12px}
@media(max-width:760px){body{min-height:100dvh}.app-shell{padding:0}.auth-card{min-height:100dvh;border-radius:0;padding:32px 22px;padding-top:max(32px,env(safe-area-inset-top));padding-bottom:max(24px,env(safe-area-inset-bottom))}.chat-app{width:100%;height:100dvh;min-height:0;border-radius:0;display:block;position:relative}.sidebar,.conversation{position:absolute;inset:0}.sidebar{border:0;padding:16px}.conversation{display:none;background:#091421;grid-template-rows:auto auto auto 1fr auto}.chat-app.chat-open .sidebar{display:none}.chat-app.chat-open .conversation{display:grid}.back-btn{display:grid;place-items:center}.chat-header{padding-top:max(14px,env(safe-area-inset-top))}.composer{padding-bottom:max(14px,env(safe-area-inset-bottom))}.messages{padding:16px 12px}.bubble{max-width:88%}.key-warning{align-items:flex-start;flex-direction:column}.security-panel{padding:10px 12px}.sidebar-footer{padding-bottom:max(4px,env(safe-area-inset-bottom))}}