:root {
    --background-primary: #36393f;
    --background-secondary: #2f3136;
    --background-tertiary: #202225;
    --channel-color: #8e9297;
    --text-normal: #dcddde;
    --text-muted: #72767d;
    --interactive-normal: #b9bbbe;
    --interactive-hover: #dcddde;
    --interactive-active: #fff;
    --background-modifier-hover: rgba(79,84,92,0.16);
    --background-modifier-active: rgba(79,84,92,0.24);
    --border-color: rgba(0,0,0,0.2);
}

body, html {
    height: 100%;
    margin: 0;
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background-color: var(--background-primary);
    color: var(--text-normal);
    overflow: hidden;
}

.app-container {
    display: flex;
    height: 100vh;
}

/* Servers List */
.servers-list {
    width: 72px;
    background-color: var(--background-tertiary);
    padding-top: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-y: auto;
}

.server-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--background-primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.server-icon:hover, .server-icon.active {
    border-radius: 16px;
    background-color: #5865f2; /* Discord blurple */
}

.server-icon.add-server-btn {
    background-color: var(--background-secondary);
    color: #43b581; /* Discord green */
    font-size: 24px;
}

.server-icon.add-server-btn:hover {
     background-color: #43b581;
     color: white;
}


/* Channels & User Panel */
.sidebar {
    width: 240px;
    background-color: var(--background-secondary);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 0 16px;
    height: 48px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    font-weight: bold;
    font-size: 16px;
}

.channels-list {
    flex-grow: 1;
    padding: 16px 8px;
    overflow-y: auto;
}

.channel {
    padding: 6px 8px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    font-weight: 500;
    color: var(--channel-color);
}

.channel:before {
    content: '#';
    margin-right: 6px;
    font-size: 20px;
    color: var(--text-muted);
}

.channel:hover {
    background-color: var(--background-modifier-hover);
    color: var(--interactive-hover);
}

.channel.active {
    background-color: var(--background-modifier-active);
    color: var(--interactive-active);
}

.user-panel {
    height: 52px;
    background-color: #292b2f;
    padding: 0 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-info {
    display: flex;
    align-items: center;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: #7289da;
    margin-right: 8px;
}

.user-name {
    font-weight: 600;
    font-size: 14px;
}

.logout-btn {
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
}
.logout-btn:hover {
    color: var(--interactive-hover);
}


/* Chat Area */
.chat-container {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--background-primary);
}

.chat-header {
    height: 48px;
    padding: 0 16px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    font-weight: bold;
}

.chat-header:before {
    content: '#';
    margin-right: 6px;
    font-size: 24px;
    color: var(--text-muted);
}

.messages-list {
    flex-grow: 1;
    overflow-y: auto;
    padding: 20px;
}

.message {
    display: flex;
    margin-bottom: 16px;
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #7289da;
    margin-right: 16px;
    flex-shrink: 0;
}

.message-content {
    display: flex;
    flex-direction: column;
}

.message-author {
    font-weight: 500;
    color: var(--text-normal);
    margin-bottom: 4px;
}

.message-text {
    line-height: 1.4;
}

.chat-input-form {
    padding: 0 20px 20px 20px;
}

.chat-input {
    width: 100%;
    height: 44px;
    border-radius: 8px;
    background-color: #40444b;
    border: none;
    padding: 0 16px;
    color: var(--text-normal);
    font-size: 16px;
    box-sizing: border-box;
}

.chat-input::placeholder {
    color: var(--text-muted);
}