:root {
    --primary-bg: #2c3e50;
    --secondary-bg: #34495e;
    --text-color: #ecf0f1;
    --border-color: #455a64;
    --input-bg: #2c3e50;
    --hover-color: #3498db;
    --button-bg: #e74c3c;
    --button-hover: #c0392b;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    color: var(--text-color);
    background-color: var(--primary-bg);
}

.room_container {
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    display: flex;
    width: 100%;
    height: 100%;
}

.empty-space {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1020px;
    background-color: var(--primary-bg);
}

.chat-sidebar {
    flex : 1;
    border-left: 1px solid var(--border-color);
}

.message {
    display: flex;
    align-items: flex-start;
    padding: 10px 20px;
    margin: 5px 0;
}

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    margin-right: 10px;
    background-color: var(--secondary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.message-content {
    background-color: var(--secondary-bg);
    padding: 8px 12px;
    border-radius: 8px;
    max-width: 70%;
}

.message-time {
    font-size: 0.8em;
    color: #95a5a6;
    margin-top: 4px;
}

.center-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.icon-large {
    font-size: 48px;
    margin-bottom: 20px;
    background: linear-gradient(45deg, #ff9a9e, #fad0c4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.button-primary {
    background-color: var(--button-bg);
    color: var(--text-color);
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

.button-primary:hover {
    background-color: var(--button-hover);
}

.avatar-list {
    display: flex;
    margin-bottom: 20px;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    margin-right: -10px;
    border: 2px solid var(--primary-bg);
}

.search-bar {
    width: 100%;
    padding: 10px;
    background-color: var(--input-bg);
    border: none;
    border-radius: 20px;
    color: var(--text-color);
    margin-bottom: 20px;
}

.search-bar::placeholder {
    color: #95a5a6;
}