:root{--color-bg:#fff;--color-bg-secondary:#f4f4f5;--color-surface:#fff;--color-text:#17191c;--color-text-secondary:#707579;--color-border:#e4e4e7;--color-accent:#3390ec;--color-accent-contrast:#fff;--color-bubble-out:#eeffde;--color-bubble-in:#f4f4f5;--color-danger:#e53e3e;--color-online:#4cd964;--radius-bubble:16px;--radius-control:10px;--safe-top:env(safe-area-inset-top,0px);--safe-bottom:env(safe-area-inset-bottom,0px);--safe-left:env(safe-area-inset-left,0px);--safe-right:env(safe-area-inset-right,0px)}@media (prefers-color-scheme:dark){:root{--color-bg:#0e1621;--color-bg-secondary:#17212b;--color-surface:#17212b;--color-text:#f0f0f0;--color-text-secondary:#8b98a5;--color-border:#1e2a36;--color-accent:#5288c1;--color-accent-contrast:#fff;--color-bubble-out:#2b5278;--color-bubble-in:#182533;--color-danger:#f56565;--color-online:#4cd964}}*{box-sizing:border-box}html,body,#root{height:100%}body{color:var(--color-text);background:var(--color-bg);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;overscroll-behavior:none;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}@media (prefers-color-scheme:dark){body{--lightningcss-light: ;--lightningcss-dark:initial}}button,input{font:inherit;color:inherit}.login-screen{height:100dvh;padding:calc(var(--safe-top) + 16px) calc(var(--safe-right) + 16px) calc(var(--safe-bottom) + 16px) calc(var(--safe-left) + 16px);justify-content:center;align-items:center;display:flex}.login-form{flex-direction:column;gap:12px;width:100%;max-width:320px;display:flex}.login-form input{border:1px solid var(--color-border);border-radius:var(--radius-control);background:var(--color-surface);padding:12px 14px}.login-form button{border-radius:var(--radius-control);background:var(--color-accent);color:var(--color-accent-contrast);border:none;padding:12px 14px;font-weight:600}.login-error{color:var(--color-danger);margin:0;font-size:14px}.placeholder{color:var(--color-text-secondary);padding:0 16px}.chat-list-screen{height:100dvh;padding-top:var(--safe-top);flex-direction:column;display:flex}.chat-list-header{justify-content:space-between;align-items:center;padding:12px 16px;display:flex}.chat-list-header h1{margin:0;font-size:22px}.chat-list-header button{background:var(--color-accent);color:var(--color-accent-contrast);border-radius:var(--radius-control);border:none;padding:8px 14px;font-weight:600}.chat-list{flex:1;margin:0;padding:0;list-style:none;overflow-y:auto}.chat-list-item{text-align:left;border:none;border-bottom:1px solid var(--color-border);background:0 0;align-items:center;gap:12px;width:100%;padding:10px 16px;display:flex}.chat-list-item-body{flex:1;min-width:0}.chat-list-item-top,.chat-list-item-bottom{justify-content:space-between;align-items:center;gap:8px;display:flex}.chat-list-item-name{font-weight:600}.chat-list-item-time{color:var(--color-text-secondary);flex-shrink:0;font-size:12px}.chat-list-item-preview{color:var(--color-text-secondary);text-overflow:ellipsis;white-space:nowrap;font-size:14px;overflow:hidden}.unread-badge{background:var(--color-accent);color:var(--color-accent-contrast);border-radius:999px;flex-shrink:0;justify-content:center;align-items:center;min-width:20px;height:20px;padding:0 6px;font-size:12px;font-weight:600;display:flex}.new-chat-panel{background:var(--color-bg);padding-top:var(--safe-top);flex-direction:column;display:flex;position:fixed;inset:0}.new-chat-header{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;padding:12px 16px;font-weight:600;display:flex}.new-chat-header button{color:var(--color-accent);background:0 0;border:none}.user-pick-list{margin:0;padding:0;list-style:none;overflow-y:auto}.user-pick-item{text-align:left;background:0 0;border:none;align-items:center;gap:12px;width:100%;padding:10px 16px;display:flex}.chat-screen{flex-direction:column;height:100dvh;display:flex}.chat-header{padding:calc(var(--safe-top) + 8px) 16px 8px;border-bottom:1px solid var(--color-border);align-items:center;gap:8px;display:flex}.back-button{color:var(--color-accent);background:0 0;border:none;padding:4px 8px 4px 0;font-size:20px}.chat-header-title{font-weight:600}.message-list{flex-direction:column;flex:1;gap:4px;padding:12px;display:flex;overflow-y:auto}.bubble-row{display:flex}.bubble-row.mine{justify-content:flex-end}.bubble-row.theirs{justify-content:flex-start}.bubble{border-radius:var(--radius-bubble);flex-direction:column;gap:2px;max-width:75%;padding:8px 10px;display:flex}.bubble-row.mine .bubble{background:var(--color-bubble-out);border-bottom-right-radius:4px}.bubble-row.theirs .bubble{background:var(--color-bubble-in);border-bottom-left-radius:4px}.bubble-text{white-space:pre-wrap;word-break:break-word}.bubble-meta{color:var(--color-text-secondary);align-self:flex-end;gap:4px;font-size:11px;display:flex}.edited-tag{font-style:italic}.ticks.read{color:var(--color-accent)}.composer{padding:8px calc(var(--safe-right) + 8px) calc(var(--safe-bottom) + 8px) calc(var(--safe-left) + 8px);border-top:1px solid var(--color-border);align-items:flex-end;gap:8px;display:flex}.composer textarea{resize:none;border:1px solid var(--color-border);border-radius:var(--radius-control);background:var(--color-surface);flex:1;max-height:120px;padding:10px 12px}.composer button{background:var(--color-accent);color:var(--color-accent-contrast);border:none;border-radius:50%;flex-shrink:0;width:40px;height:40px}.composer button:disabled{opacity:.5}.attach-button{font-size:20px;color:var(--color-text-secondary)!important;background:0 0!important}.bubble-image{border-radius:calc(var(--radius-bubble) - 4px);cursor:pointer;object-fit:cover;max-width:100%;max-height:320px;display:block}.bubble-file{color:inherit;align-items:center;gap:8px;padding:6px;text-decoration:none;display:flex}.bubble-file-icon{font-size:24px}.bubble-file-info{flex-direction:column;min-width:0;display:flex}.bubble-file-name{text-overflow:ellipsis;white-space:nowrap;max-width:200px;overflow:hidden}.bubble-file-size{color:var(--color-text-secondary);font-size:12px}.pending-attachment{border-top:1px solid var(--color-border);align-items:center;gap:8px;padding:8px 12px;display:flex}.pending-attachment img{object-fit:cover;border-radius:var(--radius-control);width:48px;height:48px}.pending-attachment button{color:var(--color-text-secondary);background:0 0;border:none;margin-left:auto}.lightbox{z-index:1000;background:#000000e6;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.lightbox img{object-fit:contain;max-width:100%;max-height:100%}.settings-screen{padding:calc(var(--safe-top) + 16px) 16px calc(var(--safe-bottom) + 16px);flex-direction:column;gap:12px;max-width:480px;display:flex}.settings-screen button{border-radius:var(--radius-control);background:var(--color-accent);color:var(--color-accent-contrast);border:none;padding:12px 14px;font-weight:600}.settings-hint{color:var(--color-text-secondary);font-size:14px;line-height:1.4}