/* Шапка чата */
.chat-header {
    padding: 12px 20px; background: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; gap: 12px;
    flex-shrink: 0;
}
.chat-header-info {
    flex: 1; min-width: 0; cursor: pointer;
}
.chat-header-info h3 {
    font-size: 17px; font-weight: 700; color: var(--text);
    margin: 0; padding: 0;
}
.chat-header-info span {
    font-size: 12px; color: var(--text-secondary);
}
.header-actions {
    display: flex; gap: 6px;
}

/* Поле ввода */
.input-area {
    padding: 10px 16px; background: var(--surface);
    border-top: 1px solid var(--border);
    display: flex; align-items: flex-end; gap: 8px;
    flex-shrink: 0;
}
.input-area textarea {
    flex: 1; padding: 10px 16px;
    border: 1.5px solid var(--border); border-radius: 22px;
    font-size: 15px; outline: none; background: var(--bg);
    color: var(--text); resize: none; max-height: 120px;
    line-height: 1.4; font-family: var(--font);
}
.input-area textarea:focus {
    border-color: var(--primary); background: var(--surface);
}
.send-btn {
    width: 42px; height: 42px; border-radius: 50%;
    border: none; background: var(--primary); color: #fff;
    cursor: pointer; font-size: 18px; display: flex;
    align-items: center; justify-content: center;
    flex-shrink: 0; transition: all 0.2s;
}
.send-btn:hover { background: var(--primary-dark); transform: scale(1.05); }
#room-title, #room-title span {
    font-size: 22px !important;
    font-weight: 700 !important;
}
.chat-header {
    padding: 14px 20px !important;
    min-height: 60px !important;
}

/* Индикатор онлайн */
#header-avatar { position: relative; overflow: visible !important; }
.online-dot { position: absolute; bottom: 0; right: 0; width: 10px; height: 10px; background: #22C55E; border-radius: 50%; border: 2px solid var(--surface); }
.offline-dot { position: absolute; bottom: 0; right: 0; width: 10px; height: 10px; background: #EF4444; border-radius: 50%; border: 2px solid var(--surface); }

/* Индикатор онлайн на аватаре */
#header-avatar {
    position: relative !important;
    overflow: visible !important;
}
.avatar-status-dot {
    animation: statusPulse 2s ease-in-out infinite;
}
@keyframes statusPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* Индикатор онлайн на аватаре */
#header-avatar {
    position: relative !important;
    overflow: visible !important;
}
.avatar-status-dot {
    animation: statusPulse 2s ease-in-out infinite;
}
@keyframes statusPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

[data-theme="light"] .chat-bubble { background: #e9ecef; color: #1a1a1a; }
[data-theme="light"] .chat-bubble.mine { background: #4F8CFF; color: #fff; }
[data-theme="light"] #messages-container { background: #f8f9fa; }
[data-theme="light"] .msg-time { color: #666; }