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18px;cursor:pointer}.conversation-item:hover{background:var(--bg)}.conversation-item.active,.conversation-item.active:hover{background:#f1effe}.avatar{width:40px;height:40px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:600;flex-shrink:0}.avatar.small{width:28px;height:28px;font-size:12px}.avatar-wrap{position:relative;flex-shrink:0}.presence-dot{position:absolute;bottom:0;right:0;width:11px;height:11px;border-radius:50%;background:var(--offline);border:2px solid var(--surface)}.presence-dot.online{background:var(--online)}.status-sep{margin:0 2px;color:var(--border)}.conversation-info{overflow:hidden}.conversation-name{font-size:14px;font-weight:600;white-space:nowrap}.conversation-preview{font-size:12px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation-item.has-unread .conversation-name{color:var(--accent)}.conversation-item.has-unread 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.chat-panel{display:flex;width:100%}.back-button{display:inline-flex;align-items:center;justify-content:center;margin-right:4px}}.login-screen{height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#f4f5f7,#ece9fe)}.login-card{background:var(--surface);border-radius:var(--radius);box-shadow:0 10px 30px #14142814;padding:40px 36px;width:320px;display:flex;flex-direction:column;gap:16px}.login-card h1{margin:0;font-size:22px}.login-subtitle{margin:-8px 0 4px;color:var(--text-muted);font-size:13px}.login-card label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--text-muted)}.login-card input{padding:10px 12px;border-radius:10px;border:1px solid var(--border);font-size:14px;outline:none;transition:border-color .15s ease}.login-card input:focus{border-color:var(--accent)}.login-error{color:#e0455a;font-size:13px}.login-card button{margin-top:8px;padding:11px;border:none;border-radius:10px;background:var(--accent);color:var(--accent-contrast);font-size:14px;font-weight:600;cursor:pointer;transition:opacity .15s ease}.login-card button:disabled{opacity:.6;cursor:default}.login-links{display:flex;justify-content:space-between;margin-top:-4px}.link-button{background:none;border:none;padding:0;margin:0;color:var(--accent);font-size:12px;font-weight:500;cursor:pointer}.link-button:hover{text-decoration:underline}.login-success{color:#1c9a5b;font-size:13px}:root{--bg: #f4f5f7;--surface: #ffffff;--border: #e5e7eb;--text: #1f2330;--text-muted: #8a8f9b;--accent: #6d5efc;--accent-contrast: #ffffff;--online: #22c55e;--offline: #b8bcc4;--radius: 14px}*{box-sizing:border-box}html,body{margin:0;height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text)}#root{height:100vh}input,button{font-family:inherit}