:root{color-scheme:dark;--bg: #0a0a0c;--panel: #121214;--panel-elevated: #1c1c1e;--border: #2c2c2e;--text: #f5f5f7;--muted: #8e8e93;--accent: #0a84ff;--accent-soft: rgba(10, 132, 255, .14);--sent: #0a84ff;--received: #3a3a3c;--danger: #ff453a;--success: #30d158;--sidebar-width: 340px;--tapback-mine: #0a84ff;--tapback-theirs: #3a3a3c;font-family:SF Pro Text,Segoe UI,system-ui,-apple-system,sans-serif;line-height:1.45;font-weight:400;color:var(--text);background:var(--bg)}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{min-width:320px}button,input,textarea{font:inherit}button{cursor:pointer}.app-shell{display:grid;grid-template-columns:var(--sidebar-width) 1fr;height:100%;background:radial-gradient(ellipse at top left,rgba(40,60,100,.25),transparent 50%),radial-gradient(ellipse at bottom right,rgba(20,30,50,.4),transparent 45%),var(--bg)}@media(max-width:900px){.app-shell{grid-template-columns:1fr}.app-shell.show-thread .sidebar{display:none}}.sidebar{border-right:1px solid var(--border);background:#121214eb;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);display:flex;flex-direction:column;min-height:0}.main-pane{display:flex;flex-direction:column;min-height:0;background:transparent}.panel-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 20px;border-bottom:1px solid var(--border);background:#121214d9;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.panel-title{margin:0;font-size:1.1rem;font-weight:600}.muted{color:var(--muted)}.chat-list{overflow:auto;flex:1}.chat-item{width:100%;border:0;background:transparent;color:inherit;text-align:left;padding:14px 18px;border-bottom:1px solid rgba(44,44,46,.7);display:grid;gap:4px}.chat-item:hover,.chat-item.active{background:var(--accent-soft)}.chat-item-top{display:flex;justify-content:space-between;gap:10px;align-items:baseline}.chat-item-title{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-item-time{color:var(--muted);font-size:.75rem;flex-shrink:0}.chat-item-preview{color:var(--muted);font-size:.92rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-item-meta{color:var(--muted);font-size:.78rem}.message-list{flex:1;overflow:auto;padding:20px;display:flex;flex-direction:column;gap:12px}.message-row{display:flex}.message-row.from-me{justify-content:flex-end}.message-bubble-wrap{position:relative;max-width:min(72%,640px);display:flex;flex-direction:column}.message-row.from-me .message-bubble-wrap{align-items:flex-end}.message-row.from-them .message-bubble-wrap{align-items:flex-start}.message-bubble{padding:10px 14px;border-radius:18px;white-space:pre-wrap;word-break:break-word;position:relative}.message-row.from-me .message-bubble{background:var(--sent);color:#fff;border-bottom-right-radius:5px}.message-row.from-them .message-bubble{background:var(--received);border-bottom-left-radius:5px}.message-text{white-space:pre-wrap}.muted-inline{opacity:.8;font-style:italic}.message-edited{margin-top:4px;font-size:.7rem;opacity:.75}.message-meta{margin-top:4px;font-size:.72rem;color:var(--muted)}.delivery-receipt{font-size:.72rem;color:var(--muted);margin-top:2px}.system-line{align-self:center;color:var(--muted);font-size:.82rem;padding:4px 0}.tapback-stack{position:absolute;display:flex;gap:4px;z-index:2}.tapback-stack.on-them{top:-10px;right:-6px}.tapback-stack.on-me{top:-10px;left:-6px}.tapback{position:relative;width:28px;height:28px;border-radius:999px;display:grid;place-items:center;box-shadow:0 1px 3px #00000059;border:1.5px solid rgba(0,0,0,.25)}.tapback.mine{background:var(--tapback-mine)}.tapback.theirs{background:#2c2c2e;border-color:#ffffff14}.tapback-emoji{font-size:14px;line-height:1}.tapback-tail{position:absolute;width:7px;height:7px;border-radius:999px;background:inherit;bottom:-3px}.tapback.mine .tapback-tail{left:3px}.tapback.theirs .tapback-tail{right:3px}.tapback-tail:after{content:"";position:absolute;width:4px;height:4px;border-radius:999px;background:inherit;bottom:-5px;left:6px}.reaction-menu{position:fixed;z-index:50;background:#2c2c2ef5;border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:10px;box-shadow:0 12px 40px #00000073;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);min-width:260px}.reaction-menu-tapbacks{display:flex;gap:4px;justify-content:space-between;margin-bottom:8px}.tapback-choice{width:38px;height:38px;border:0;border-radius:999px;background:transparent;font-size:1.25rem}.tapback-choice:hover{background:#ffffff1a}.reaction-menu-actions{display:grid;gap:4px}.reaction-menu-actions button{border:0;background:transparent;color:var(--text);text-align:left;padding:8px 10px;border-radius:10px}.reaction-menu-actions button:hover{background:#ffffff14}.attachment{margin-top:6px}.attachment img{display:block;max-width:min(260px,70vw);max-height:280px;border-radius:12px}.attachment.sticker img{max-width:140px;max-height:140px;background:transparent}.attachment-link{display:inline-block;margin-top:4px;border:0;background:transparent;color:inherit;text-decoration:underline;opacity:.9;padding:0;font-size:.85rem}.edit-box textarea{width:100%;min-height:72px;border-radius:10px;border:1px solid rgba(255,255,255,.2);background:#0003;color:inherit;padding:8px;resize:vertical}.edit-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:8px}.compose-box{border-top:1px solid var(--border);padding:12px 16px;background:#121214f0;display:grid;grid-template-columns:auto 1fr auto;grid-template-areas:"attach field send" "error error error";gap:10px;align-items:end}.compose-attach{grid-area:attach;width:42px;height:42px;border-radius:999px;font-size:1.35rem;line-height:1;padding:0}.compose-box textarea{grid-area:field;width:100%;resize:none;min-height:42px;max-height:160px;border-radius:20px;border:1px solid var(--border);background:var(--panel-elevated);color:var(--text);padding:10px 14px}.compose-send{grid-area:send;height:42px;min-width:72px;border-radius:20px}.compose-error{grid-area:error}.primary-button,.secondary-button,.ghost-button{border-radius:12px;border:1px solid transparent;padding:10px 16px}.primary-button{background:var(--accent);color:#fff}.secondary-button{background:var(--panel-elevated);color:var(--text);border-color:var(--border)}.ghost-button{background:transparent;color:var(--muted);border-color:var(--border)}.primary-button:disabled,.secondary-button:disabled,.ghost-button:disabled{opacity:.55;cursor:not-allowed}.empty-state{min-height:100%;display:grid;place-items:center;padding:24px}.status-bar{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--muted)}.status-dot{width:8px;height:8px;border-radius:999px;background:var(--muted)}.status-dot.online{background:var(--success)}.status-dot.offline{background:var(--danger)}.error-banner{background:#ff453a1f;border:1px solid rgba(255,69,58,.35);color:#ffb4ae;border-radius:12px;padding:10px 12px;font-size:.92rem;margin:8px 12px}.new-chat-bar{padding:12px 18px;border-bottom:1px solid var(--border);display:grid;grid-template-columns:1fr auto;gap:8px}.new-chat-bar input{border-radius:12px;border:1px solid var(--border);background:var(--panel-elevated);color:var(--text);padding:10px 12px;width:100%}.welcome-screen{min-height:100%;display:grid;place-items:center;padding:32px 20px;background:linear-gradient(160deg,#101218,#0b0d12 45%,#151018);color:var(--text)}.welcome-screen.locked{background:#050505}.welcome-inner{text-align:center;max-width:420px}.welcome-brand{margin:0;font-size:clamp(2rem,5vw,3rem);font-weight:600;letter-spacing:-.03em}.welcome-tagline{margin:10px 0 0;color:var(--muted);font-size:1.05rem}.welcome-hint{margin:28px 0 0;font-size:.9rem}.welcome-sub{margin:14px 0 0;color:var(--muted);line-height:1.5}.welcome-sub code{font-size:.85em}