:root{--bg: #faf9f7;--surface: #ffffff;--text: #1e1e2a;--muted: #8e8ea0;--subtle: #e8e7e4;--accent: #4f6ef7;--accent-soft: #eef1ff;--danger: #e74c5e;--danger-soft: #fef0f2;--radius: 12px;--radius-lg: 20px;--shadow: 0 1px 4px rgba(0, 0, 0, .06);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;color:var(--text);background:var(--bg)}*{box-sizing:border-box}body{margin:0;min-height:100vh}button,input,textarea,select{font:inherit}a{color:var(--accent);text-decoration:none}.app-shell{max-width:720px;margin:0 auto;padding:16px;min-height:100vh;display:flex;flex-direction:column}.onboard{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:32px;padding:40px 16px}.onboard h1{font-size:28px;font-weight:600;letter-spacing:-.3px;margin:0;line-height:1.2}.onboard p{color:var(--muted);font-size:15px;line-height:1.5;max-width:360px;margin:0}.identity-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;width:100%;max-width:360px}.identity-card{background:var(--surface);border:1.5px solid var(--subtle);border-radius:var(--radius);padding:20px 16px;cursor:pointer;transition:all .15s;display:flex;flex-direction:column;align-items:center;gap:6px}.identity-card:hover{border-color:var(--accent);box-shadow:var(--shadow)}.identity-card:active{transform:scale(.97)}.identity-avatar{width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:600;color:#fff;margin-bottom:4px}.identity-card .alias{font-weight:600;font-size:16px}.identity-card .detail{font-size:12px;color:var(--muted)}.home-header{display:flex;align-items:center;justify-content:space-between;padding:12px 0 4px;margin-bottom:4px}.home-header h1{font-size:22px;font-weight:600;margin:0}.user-badge{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}.user-badge .dot{width:8px;height:8px;border-radius:50%;display:inline-block}.post-box{background:var(--surface);border:1.5px solid var(--subtle);border-radius:var(--radius-lg);padding:16px;margin-bottom:20px;box-shadow:var(--shadow)}.post-box textarea{width:100%;border:none;outline:none;resize:none;padding:0;font-size:15px;line-height:1.4;min-height:48px;background:transparent;color:var(--text)}.post-box textarea::placeholder{color:var(--muted)}.post-actions{display:flex;justify-content:space-between;align-items:center;margin-top:12px;padding-top:12px;border-top:1px solid var(--subtle)}.slot-info{font-size:12px;color:var(--muted)}.slot-info span{margin-right:12px}.cooldown{color:var(--danger)!important;font-weight:500}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.section-header h2{font-size:14px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin:0}.card-list{display:flex;flex-direction:column;gap:10px;margin-bottom:24px}.invite-card{background:var(--surface);border:1.5px solid var(--subtle);border-radius:var(--radius);padding:16px;cursor:pointer;transition:all .15s;box-shadow:var(--shadow);display:flex;justify-content:space-between;align-items:center;gap:12px}.invite-card:hover{border-color:var(--accent);box-shadow:0 2px 8px #4f6ef71a}.invite-card:active{transform:scale(.98)}.invite-topic{font-size:15px;font-weight:500;line-height:1.3;flex:1}.invite-meta{display:flex;flex-direction:column;align-items:flex-end;gap:4px;flex-shrink:0}.invite-intent{font-size:11px;color:var(--accent);background:var(--accent-soft);padding:3px 8px;border-radius:999px;font-weight:500}.invite-time{font-size:11px;color:var(--muted)}.room-card{background:var(--surface);border:1.5px solid var(--subtle);border-radius:var(--radius);padding:14px 16px;cursor:pointer;transition:all .15s;box-shadow:var(--shadow);display:flex;justify-content:space-between;align-items:center;gap:12px}.room-card:hover{border-color:var(--accent)}.room-card.active{border-color:var(--accent);background:var(--accent-soft)}.room-peer{display:flex;align-items:center;gap:10px}.room-avatar{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;color:#fff;flex-shrink:0}.room-info{display:flex;flex-direction:column;gap:2px}.room-name{font-weight:600;font-size:14px}.room-sub{font-size:12px;color:var(--muted)}.room-tags{display:flex;gap:6px;align-items:center;flex-shrink:0}.state-badge{font-size:11px;padding:3px 8px;border-radius:999px;font-weight:500}.state-badge.pending{background:#f0f0f0;color:#666}.state-badge.active{background:#e3f0ff;color:#2b6ed7}.state-badge.warm{background:#e6f7e6;color:#2a8a2a}.state-badge.closed{background:#f5f5f5;color:#999}.empty-state{text-align:center;padding:32px 16px;color:var(--muted);font-size:14px;line-height:1.5}.chat-view{flex:1;display:flex;flex-direction:column;min-height:0}.chat-topbar{display:flex;align-items:center;gap:12px;padding:8px 0 12px;border-bottom:1px solid var(--subtle);margin-bottom:12px}.back-btn{background:none;border:none;cursor:pointer;padding:4px 8px 4px 0;font-size:20px;color:var(--muted);display:flex;align-items:center}.chat-peer{flex:1}.chat-peer .name{font-weight:600;font-size:16px}.chat-peer .meta{font-size:12px;color:var(--muted)}.chat-commands{display:flex;gap:4px}.icon-btn{background:none;border:1px solid var(--subtle);border-radius:8px;padding:6px 10px;cursor:pointer;font-size:12px;color:var(--muted);transition:all .15s}.icon-btn:hover{border-color:var(--accent);color:var(--accent)}.icon-btn.danger:hover{border-color:var(--danger);color:var(--danger);background:var(--danger-soft)}.msg-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:8px;padding:4px 0 12px;scroll-behavior:smooth}.msg{max-width:80%;padding:10px 14px;border-radius:16px;font-size:14px;line-height:1.4;word-wrap:break-word}.msg.own{align-self:flex-end;background:var(--accent);color:#fff;border-bottom-right-radius:4px}.msg.peer{align-self:flex-start;background:var(--surface);border:1px solid var(--subtle);border-bottom-left-radius:4px}.msg-time{font-size:10px;opacity:.6;margin-top:4px;text-align:right}.typing-indicator{font-size:13px;color:var(--muted);min-height:20px;padding:2px 0}.composer{display:flex;gap:8px;align-items:flex-end;padding:12px 0;border-top:1px solid var(--subtle)}.composer input{flex:1;border:1.5px solid var(--subtle);border-radius:20px;padding:10px 16px;font-size:14px;outline:none;background:var(--surface);color:var(--text);transition:border-color .15s}.composer input:focus{border-color:var(--accent)}.btn{border:none;border-radius:20px;padding:10px 20px;font-weight:500;font-size:14px;cursor:pointer;transition:all .15s;white-space:nowrap}.btn:active{transform:scale(.96)}.btn:disabled{opacity:.5;cursor:default;transform:none}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){opacity:.9}.btn-ghost{background:transparent;border:1.5px solid var(--subtle);color:var(--text)}.btn-ghost:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover:not(:disabled){opacity:.9}.btn-small{padding:6px 14px;font-size:12px;border-radius:16px}.toast{position:fixed;bottom:20px;left:50%;transform:translate(-50%);background:#1e1e2a;color:#fff;padding:10px 20px;border-radius:40px;font-size:13px;box-shadow:0 4px 16px #00000026;z-index:100;animation:toast-up .2s ease;max-width:90vw;text-align:center}@keyframes toast-up{0%{opacity:0;transform:translate(-50%) translateY(8px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.dialog-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000004d;display:flex;align-items:center;justify-content:center;z-index:200;animation:fade-in .15s ease}@keyframes fade-in{0%{opacity:0}}.dialog-box{background:var(--surface);border-radius:var(--radius-lg);padding:24px;width:90%;max-width:340px;box-shadow:0 8px 32px #0000001f}.dialog-box h3{margin:0 0 8px;font-size:17px}.dialog-box p{margin:0 0 16px;font-size:14px;color:var(--muted);line-height:1.4}.dialog-actions{display:flex;gap:8px;justify-content:flex-end}@media(max-width:600px){.app-shell{padding:12px}.onboard{padding:24px 8px;gap:24px}.onboard h1{font-size:24px}.identity-grid{grid-template-columns:1fr 1fr;gap:8px}.invite-card{flex-direction:column;align-items:flex-start;gap:8px}.invite-meta{flex-direction:row;align-items:center;width:100%;justify-content:space-between}.msg{max-width:90%}.home-header h1{font-size:20px}}.large-empty-state{margin:auto;text-align:center;max-width:420px}.muted{color:#94a3b8}@media(max-width:980px){.grid-layout{grid-template-columns:1fr}.chat-panel{min-height:560px}.chat-header,.status-bar,.hero-panel{flex-direction:column}.composer-row{grid-template-columns:1fr}}