/* Base Styles */
body {
    background: linear-gradient(135deg, #83a4d4, #b6fbff);
    min-height: 100vh;
    margin: 0;
    font-family: Arial, sans-serif;
}

/* Layout */
.container {
    display: flex;
    max-width: 1200px;
    margin: 20px auto;
    background: white;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    height: 80vh;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background-color: #f8f9fa;
    border-right: 1px solid #dee2e6;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 0 15px;
}

.sidebar-header {
    padding: 15px;
    margin: 0 -15px;
    border-bottom: 1px solid #dee2e6;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Icons */
.material-icons {
    font-size: 20px;
    line-height: 1;
    vertical-align: middle;
}

/* Buttons */
.logout-btn,
.message-input-container button,
.user-item button {
    padding: 8px;
    background-color: transparent;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.logout-btn {
    color: #dc3545;
}

.logout-btn .material-icons {
    font-size: 24px;
}

.logout-btn:hover,
.message-input-container button:hover,
.user-item button:hover {
    transform: scale(1.1);
    background-color: transparent;
}

/* Chat Area */
.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: white;
}

#chatlog,
.private-chat {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    margin: 0;
    border: none;
    background: white;
}

/* Message Input */
.message-input-container {
    display: flex;
    padding: 15px 20px;
    background: #f8f9fa;
    border-top: 1px solid #dee2e6;
    position: sticky;
    bottom: 0;
}

.message-input-container input {
    flex: 1;
    padding: 12px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    margin-right: 10px;
}

.message-input-container button {
    color: #007bff;
}

.message-input-container button .material-icons {
    font-size: 24px;
}

/* Room Styles */
.room-creation input {
    width: calc(100% - 22px);
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.room-creation button {
    width: 100%;
    padding: 10px;
    background-color: #28a745;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 4px;
}

.room {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    margin-bottom: 10px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: white;
    transition: background-color 0.3s ease;
}

.room:hover {
    background-color: #f0f0f0;
}

.room.current {
    background-color: #e3f2fd;
    border-color: #90caf9;
}

/* Room Controls */
.room-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.delete-room-btn {
    background-color: #dc3545;
    border: none;
    color: white;
    cursor: pointer;
    padding: 2px 8px;
    font-size: 14px;
    border-radius: 4px;
    margin-left: 8px;
}

.delete-room-btn:hover {
    background-color: #c82333;
    transform: scale(1.1);
}

/* User Styles */
.user-item {
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.user-item.current-user {
    background-color: #ececec;
    border-color: #a1a1a1;
    font-weight: bold;
}

/* Login Styles */
.login-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    min-width: 300px;
}

.login-container h2 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 28px;
}

.login-container p {
    color: #7f8c8d;
    margin-bottom: 25px;
    font-size: 14px;
}

.login-container input {
    width: 100%;
    padding: 12px;
    margin-bottom: 20px;
    border: 2px solid #e0e0e0;
    border-radius: 5px;
    font-size: 14px;
    transition: border-color 0.3s ease;
    box-sizing: border-box;
}

.login-container input:focus {
    border-color: #3498db;
    outline: none;
}

.login-container button {
    width: 100%;
    padding: 12px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.login-container button:hover {
    background: #2980b9;
}

/* Chat Tabs */
.chat-tabs {
    background: #f8f9fa;
    border-bottom: 2px solid #dee2e6;
    padding: 0 20px;
    margin: 0;
    display: flex;
    overflow-x: auto;
    scrollbar-width: thin;
}

.chat-tab {
    padding: 12px 20px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    color: #6c757d;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.3s ease;
}

.chat-tab:hover {
    background: #e9ecef;
    color: #495057;
}

.chat-tab.active {
    background: white;
    color: #007bff;
    border-bottom: 2px solid #007bff;
}

.private-chat {
    display: none;
    height: 100%;
}

.private-chat.active {
    display: flex;
    flex-direction: column;
}

#private-chats {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.room-chat.hidden {
    display: none;
}

.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Messages */
.message {
    margin-bottom: 10px;
    padding: 8px 12px;
    border-radius: 15px;
    max-width: 80%;
    word-wrap: break-word;
    position: relative;
    padding-right: 70px;
    min-height: 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.message .controls {
    position: absolute;
    top: 50%;
    right: 8px;
    transform: translateY(-50%);
    display: flex;
    gap: 6px;
    opacity: 0;
    transition: opacity 0.2s ease;
    align-items: center;
}

.message:hover .controls {
    opacity: 1;
}

.message .controls button {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    transition: transform 0.2s ease;
    color: #6c757d;
    display: flex;
    align-items: center;
    justify-content: center;
}

.message .controls button .material-icons {
    font-size: 18px;
}

.message .controls button:hover {
    transform: scale(1.2);
    color: #495057;
}

.reply-indicator {
    font-size: 0.85em;
    color: #6c757d;
    margin-bottom: 4px;
    cursor: pointer;
}

.reply-indicator:hover {
    color: #495057;
}

.replying-to {
    background: #f8f9fa;
    padding: 8px 12px;
    border-left: 3px solid #007bff;
    margin-bottom: 8px;
    border-radius: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cancel-reply {
    background: none;
    border: none;
    color: #6c757d;
    cursor: pointer;
}

.cancel-reply:hover {
    color: #495057;
}

.message.reply {
    border-left: 3px solid #007bff;
    margin-left: 8px;
}

.private-message {
    background: #e9ecef;
    color: #495057;
    padding: 8px 12px;
    border-radius: 15px;
    margin-bottom: 10px;
    max-width: 80%;
    position: relative;
    padding-right: 70px;
}

.private-message .controls {
    position: absolute;
    top: 50%;
    right: 8px;
    transform: translateY(-50%);
    display: flex;
    gap: 6px;
    opacity: 0;
    transition: opacity 0.2s ease;
    align-items: center;
}

.private-message:hover .controls {
    opacity: 1;
}

.private-message .controls button {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    transition: transform 0.2s ease;
    color: #6c757d;
    display: flex;
    align-items: center;
    justify-content: center;
}

.private-message .controls button:hover {
    transform: scale(1.2);
    color: #495057;
}

.private-message.reply {
    border-left: 3px solid #007bff;
    margin-left: 8px;
}

.private-message .reply-indicator {
    font-size: 0.85em;
    color: #6c757d;
    margin-bottom: 4px;
    cursor: pointer;
}

.private-message .reply-indicator:hover {
    color: #495057;
}

.tab-close {
    margin-left: 8px;
    opacity: 0.7;
    cursor: pointer;
    padding: 0 4px;
    vertical-align: middle;
    display: inline-flex;
    align-items: center;
}

.tab-close .material-icons {
    font-size: 16px;
}

.tab-close:hover {
    opacity: 1;
}

/* User Management */
.manage-users-btn {
    background-color: #17a2b8;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 10px;
}

.banned-users-list {
    margin-top: 10px;
    padding: 10px;
    background-color: #f8f9fa;
    border-radius: 4px;
}

.banned-user-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5px;
    margin: 2px 0;
}

.unban-btn,
.unkick-btn {
    background-color: #28a745;
    color: white;
    border: none;
    padding: 3px 8px;
    border-radius: 3px;
    cursor: pointer;
}

#banned_users_list,
#kicked_users_list {
    margin-top: 15px;
    padding: 10px;
    background-color: #f8f9fa;
    border-radius: 4px;
    display: none;
}

#banned_users_list h4,
#kicked_users_list h4 {
    margin: 0 0 10px 0;
    color: #dc3545;
    font-size: 14px;
}

.banned-user-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5px 8px;
    margin: 5px 0;
    background: white;
    border-radius: 4px;
    font-size: 14px;
}

.unban-btn,
.unkick-btn {
    padding: 4px 8px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    color: white;
    transition: background-color 0.2s ease;
}

.unban-btn {
    background-color: #dc3545;
}

.unkick-btn {
    background-color: #28a745;
}

.unban-btn:hover {
    background-color: #c82333;
}

.unkick-btn:hover {
    background-color: #218838;
}