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

:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --bg-color: #ffffff;
    --text-color: #212529;
    --border-color: #dee2e6;
    --sidebar-bg: #f8f9fa;
    --message-bg: #ffffff;
    --input-bg: #ffffff;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --text-color: #e9ecef;
    --border-color: #495057;
    --sidebar-bg: #2c2c2c;
    --message-bg: #2c2c2c;
    --input-bg: #343a40;
    --shadow: 0 2px 10px rgba(0,0,0,0.3);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.5;
    color: var(--text-color);
    background: var(--bg-color);
    transition: var(--transition);
    overflow-x: hidden;
}

/* Font size classes */
.font-small { font-size: 0.875rem; }
.font-medium { font-size: 1rem; }
.font-large { font-size: 1.125rem; }

/* Compact mode */
.compact-mode .message {
    padding: 0.5rem;
    margin-bottom: 0.5rem;
}

.compact-mode .message-header {
    margin-bottom: 0.125rem;
}

/* Animations */
.no-animations * {
    animation-duration: 0s !important;
    transition-duration: 0s !important;
}

.hidden {
    display: none !important;
}

/* Login Screen */
.login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color), #6610f2);
    padding: 20px;
}

.login-container {
    background: var(--bg-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    max-width: 400px;
    width: 100%;
}

.login-header i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.login-header h1 {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.login-header p {
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.input-group i {
    position: absolute;
    left: 1rem;
    color: var(--secondary-color);
    z-index: 1;
}

.input-group input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 3rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    background: var(--input-bg);
    color: var(--text-color);
    transition: var(--transition);
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0,123,255,.25);
}

.login-btn {
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.login-btn:hover {
    background: #0056b3;
    transform: translateY(-1px);
}

.login-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* Chat Interface */
.chat-interface {
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-color);
}

.chat-header {
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-left h1 {
    font-size: 1.5rem;
    color: var(--text-color);
}

.current-channel {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.current-server {
    background: var(--success-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
}

.icon-btn:hover {
    background: var(--light-color);
    color: var(--primary-color);
}

[data-theme="dark"] .icon-btn:hover {
    background: var(--dark-color);
}

.user-nickname {
    font-weight: 600;
    color: var(--primary-color);
}

/* Chat Container */
.chat-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    padding: 1rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sidebar-section h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--secondary-color);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.servers-list, .channels-list, .users-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.server-item, .channel-item, .user-item {
    padding: 0.5rem 0.75rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.875rem;
    border: 1px solid transparent;
}

.server-item:hover, .channel-item:hover, .user-item:hover {
    background: rgba(0,123,255,0.1);
    border-color: var(--primary-color);
}

.server-item.active, .channel-item.active {
    background: var(--primary-color);
    color: white;
}

.server-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.server-name {
    font-weight: 500;
}

.server-status {
    font-size: 0.75rem;
}

.server-status.connected {
    color: var(--success-color);
}

.server-status.connecting {
    color: var(--warning-color);
}

.server-status.disconnected {
    color: var(--secondary-color);
}

.server-item.active .server-status.connected {
    color: #90ee90;
}

.servers-modal .modal-content {
    max-width: 1200px;
    width: 98vw;
    min-width: 700px;
    height: 80vh;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

.channel-actions {
    margin-top: 0.5rem;
    display: flex;
    gap: 0.5rem;
}

.channel-actions input {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    background: var(--input-bg);
    color: var(--text-color);
}

.channel-actions button {
    padding: 0.5rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.channel-actions button:hover {
    background: #0056b3;
}

/* Main Chat */
.main-chat {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.messages-container {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    scroll-behavior: smooth;
}

.message {
    margin-bottom: 1rem;
    padding: 0.75rem;
    border-radius: var(--border-radius);
    background: var(--message-bg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.message:hover {
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.message-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.message-user {
    font-weight: 600;
    color: var(--primary-color);
}

.message-time {
    font-size: 0.75rem;
    color: var(--secondary-color);
}

.message-content {
    color: var(--text-color);
    word-wrap: break-word;
}

.system-message {
    background: rgba(108,117,125,0.1);
    border-color: var(--secondary-color);
    font-style: italic;
}

.private-message {
    background: rgba(255,193,7,0.1);
    border-color: var(--warning-color);
}

.join-message {
    background: rgba(40,167,69,0.1);
    border-color: var(--success-color);
}

.leave-message {
    background: rgba(220,53,69,0.1);
    border-color: var(--danger-color);
}

.irc-message {
    border-left: 3px solid var(--info-color);
}

/* Input Container */
.input-container {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-color);
    position: relative;
}

.input-wrapper {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

#messageInput {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 25px;
    font-size: 1rem;
    background: var(--input-bg);
    color: var(--text-color);
    transition: var(--transition);
}

#messageInput:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0,123,255,.25);
}

.emoji-btn, .send-btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.emoji-btn {
    background: var(--light-color);
    font-size: 1.2rem;
}

.emoji-btn:hover {
    background: var(--border-color);
}

.send-btn {
    background: var(--primary-color);
    color: white;
}

.send-btn:hover {
    background: #0056b3;
    transform: scale(1.05);
}

/* Emoji Picker */
.emoji-picker {
    position: absolute;
    bottom: 100%;
    right: 0;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    box-shadow: var(--shadow);
    z-index: 1000;
    max-width: 300px;
    max-height: 200px;
    overflow-y: auto;
}

.emoji-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(30px, 1fr));
    gap: 0.25rem;
    line-height: 1;
}

.emoji-grid span {
    display: inline-block;
    padding: 0.25rem;
    text-align: center;
    cursor: pointer;
    border-radius: 4px;
    font-size: 1.2em;
    transition: background-color 0.2s ease;
    user-select: none;
}

.emoji-grid span:hover {
    background: var(--light-color);
    transform: scale(1.1);
}

.emoji-grid span:active {
    background: var(--primary-color);
    color: white;
}

/* Modal Base */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
    box-sizing: border-box;
}

.modal-content {
    background: var(--bg-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--secondary-color);
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.close-btn:hover {
    background: var(--light-color);
    color: var(--danger-color);
}

/* IRC Servers Modal - FIXED SIZING */
.servers-modal {
    max-width: 900px;
    max-height: 90vh;
    width: 95%;
    height: auto;
}

.servers-container {
    display: flex;
    height: 70vh;
    min-height: 400px;
    max-height: 70vh;
    overflow: hidden;
}

.servers-list-full {
    width: 350px;
    min-width: 300px;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.servers-list-full h4 {
    padding: 1rem;
    margin: 0;
    color: var(--text-color);
    font-size: 1.1rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-color);
    flex-shrink: 0;
}

.available-servers {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-height: calc(70vh - 60px);
}

.available-server-item {
    padding: 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-color);
    flex-shrink: 0;
}

.available-server-item:hover {
    border-color: var(--primary-color);
    background: rgba(0,123,255,0.05);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.available-server-item.selected {
    border-color: var(--primary-color);
    background: rgba(0,123,255,0.1);
    box-shadow: 0 0 0 1px var(--primary-color);
}

.available-server-item.connected {
    border-color: var(--success-color);
    background: rgba(40,167,69,0.1);
}

.available-server-item.connected.selected {
    border-color: var(--success-color);
    background: rgba(40,167,69,0.15);
    box-shadow: 0 0 0 1px var(--success-color);
}

.server-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.75rem;
    gap: 1rem;
}

.server-item-name {
    font-weight: 600;
    color: var(--text-color);
    font-size: 1rem;
}

.server-item-status {
    font-size: 0.75rem;
    padding: 0.3rem 0.6rem;
    border-radius: 15px;
    background: var(--secondary-color);
    color: white;
    font-weight: 500;
    white-space: nowrap;
    flex-shrink: 0;
}

.server-item-status.connected {
    background: var(--success-color);
}

.server-item-status.connecting {
    background: var(--warning-color);
    color: var(--dark-color);
}

.server-item-status.disconnected {
    background: var(--secondary-color);
}

.server-item-host {
    font-size: 0.875rem;
    color: var(--secondary-color);
    font-family: 'Courier New', monospace;
    background: rgba(0,0,0,0.05);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

[data-theme="dark"] .emoji-grid span:hover {
    background: var(--dark-color);
}

.server-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
}

.server-details h4 {
    padding: 1rem;
    margin: 0;
    color: var(--text-color);
    font-size: 1.1rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-color);
    flex-shrink: 0;
}

.server-info-details {
    flex: 1;
    margin: 1rem 1rem 0 1rem;
    padding: 1.25rem;
    background: var(--sidebar-bg);
    border-radius: var(--border-radius);
    overflow-y: auto;
    border: 1px solid var(--border-color);
    max-height: calc(70vh - 140px);
}

.server-info-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    gap: 1rem;
}

.server-info-item:last-child {
    border-bottom: none;
}

.server-info-item strong {
    color: var(--text-color);
    font-weight: 600;
    flex-shrink: 0;
    min-width: 80px;
}

.server-info-item span {
    color: var(--secondary-color);
    text-align: right;
    word-break: break-word;
}

.server-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    flex-wrap: wrap;
    flex-shrink: 0;
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-color);
    margin-top: auto;
}

.server-actions button {
    min-width: 120px;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

/* Settings Modal - FIXED SIZING */
.settings-modal {
    max-width: 900px;
    max-height: 90vh;
    width: 95%;
}

.settings-container {
    display: flex;
    flex: 1 1 auto;
    min-height: 0;
    height: 100%;
    box-sizing: border-box;
}

.settings-sidebar {
    width: 220px;
    min-width: 180px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    box-sizing: border-box;
}

.settings-tabs {
    display: flex;
    flex-direction: column;
    padding: 0;
}

.settings-tab {
    width: 100%;
    padding: 1rem;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    color: var(--text-color);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.settings-tab:hover {
    background: rgba(0,123,255,0.1);
}

.settings-tab.active {
    background: var(--primary-color);
    color: white;
}

.settings-tab i {
    width: 16px;
    text-align: center;
}

.settings-content-wrapper {
    flex: 1 1 0%;
    min-width: 0;
    min-height: 0;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.settings-content {
    flex: 1 1 auto;
    min-height: 0;
    min-width: 0;
    overflow-y: auto; /* Only this scrolls */
    box-sizing: border-box;
    padding: 2rem 1.5rem 2rem 2rem;
}

.settings-panel {
    display: none;
}

.settings-panel.active {
    display: block;
}

.settings-panel h4 {
    margin-bottom: 1.5rem;
    color: var(--text-color);
    font-size: 1.25rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
    gap: 1rem;
}

.setting-item:last-child {
    border-bottom: none;
}

.setting-item label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-color);
    cursor: pointer;
    flex: 1;
}

.setting-item label i {
    width: 16px;
    text-align: center;
    color: var(--secondary-color);
}

.setting-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    flex-shrink: 0;
}

.setting-item input[type="text"] {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--input-bg);
    color: var(--text-color);
    width: 200px;
    flex-shrink: 0;
}

.setting-item select {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--input-bg);
    color: var(--text-color);
    cursor: pointer;
    width: 200px;
    flex-shrink: 0;
}

.settings-footer {
    flex-shrink: 0;
    min-width: 0;
    border-top: 1px solid var(--border-color);
    background: var(--sidebar-bg);
    padding: 1rem 1.5rem 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    z-index: 10;
}
.settings-actions {
    display: flex;
    gap: 1rem;
}

.servers-modal .servers-list-full {
    width: 330px;
    min-width: 250px;
    max-width: 400px;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    flex-shrink: 0;
}

.servers-modal .server-details {
    flex: 1 1 0%;
    min-width: 350px;
    /* Add padding or min-width as needed */
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.settings-modal .settings-sidebar {
    width: 220px;
    min-width: 180px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    box-sizing: border-box;
}

/* Button Styles */
.primary-btn, .secondary-btn, .danger-btn, .info-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.primary-btn {
    background: var(--primary-color);
    color: white;
}

.primary-btn:hover:not(:disabled) {
    background: #0056b3;
}

.primary-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.secondary-btn {
    background: var(--secondary-color);
    color: white;
}

.secondary-btn:hover {
    background: #545b62;
}

.danger-btn {
    background: var(--danger-color);
    color: white;
}

.danger-btn:hover:not(:disabled) {
    background: #c82333;
}

.danger-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.info-btn {
    background: var(--info-color);
    color: white;
}

.info-btn:hover {
    background: #138496;
}

/* About Panel Styles */
.about-info {
    margin-bottom: 2rem;
}

.about-item {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.about-item:last-child {
    border-bottom: none;
}

.about-stats {
    margin-bottom: 2rem;
}

.about-stats h5 {
    margin-bottom: 1rem;
    color: var(--text-color);
    font-size: 1.1rem;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

.stat-item:last-child {
    border-bottom: none;
}

.about-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* Utility Classes */
.text-success {
    color: var(--success-color) !important;
    font-weight: 600;
}

.text-danger {
    color: var(--danger-color) !important;
    font-weight: 600;
}

.text-warning {
    color: var(--warning-color) !important;
    font-weight: 600;
}

/* Notification */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--primary-color);
    color: white;
    padding: 1rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    z-index: 1000;
    animation: slideIn 0.3s ease;
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.notification.success {
    background: var(--success-color);
}

.notification.error {
    background: var(--danger-color);
}

.notification.warning {
    background: var(--warning-color);
    color: var(--dark-color);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Loading Animation */
@keyframes spin {
    to { transform: rotate(360deg); }
}

.fa-spin {
    animation: spin 1s linear infinite;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

[data-theme="dark"] ::-webkit-scrollbar-track {
    background: var(--dark-color);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
    background: #6c757d;
}

/* Enhanced scrollbar for modal content */
.available-servers::-webkit-scrollbar,
.server-info-details::-webkit-scrollbar,
.settings-content::-webkit-scrollbar {
    width: 6px;
}

.available-servers::-webkit-scrollbar-track,
.server-info-details::-webkit-scrollbar-track,
.settings-content::-webkit-scrollbar-track {
    background: var(--light-color);
    border-radius: 3px;
}

.available-servers::-webkit-scrollbar-thumb,
.server-info-details::-webkit-scrollbar-thumb,
.settings-content::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.available-servers::-webkit-scrollbar-thumb:hover,
.server-info-details::-webkit-scrollbar-thumb:hover,
.settings-content::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* Responsive */
@media (max-width: 1024px) {
    .settings-modal .settings-sidebar {
        width: 180px;
        min-width: 100px;
    }
    .servers-modal .servers-list-full {
        width: 180px;
        min-width: 100px;
    }
}

@media (max-width: 768px) {
    .current-server {
        display: none;
    }
    
    .sidebar {
        position: fixed;
        left: -280px;
        top: 0;
        height: 100vh;
        z-index: 1000;
        transition: var(--transition);
        box-shadow: var(--shadow);
    }
    
    .sidebar.open {
        left: 0;
    }
    
    .main-chat {
        width: 100%;
    }
    
    .servers-modal, .settings-modal {
        max-width: 100%;
        margin: 0.5rem;
        max-height: 95vh;
    }
    
    .servers-container, .settings-container {
        flex-direction: column;
        height: auto;
        max-height: 80vh;
    }
    
    .servers-list-full, .settings-sidebar {
        width: 100%;
        max-height: 35vh;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .available-servers {
        max-height: calc(35vh - 60px);
    }
    
    .settings-tabs {
        flex-direction: row;
        overflow-x: auto;
    }
    
    .settings-tab {
        white-space: nowrap;
        min-width: max-content;
    }
    
    .server-details, .settings-content-wrapper {
        flex: 1;
        min-height: 40vh;
    }
    
    .settings-content {
        max-height: calc(40vh - 60px);
    }
    
    .server-info-details {
        max-height: calc(40vh - 120px);
    }
    
    .setting-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .setting-item input[type="text"],
    .setting-item select {
        width: 100%;
    }
    
    .server-actions, .settings-actions {
        flex-direction: column;
    }
    
    .server-actions button {
        min-width: auto;
        width: 100%;
    }
    
    .about-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .login-header i {
        font-size: 2rem;
    }
    
    .login-header h1 {
        font-size: 1.5rem;
    }
    
    .messages-container {
        padding: 0.5rem;
    }
    
    .message {
        padding: 0.5rem;
    }
    
    .input-container {
        padding: 0.75rem;
    }
    
    .emoji-grid {
        grid-template-columns: repeat(8, 1fr);
        font-size: 1rem;
    }
    
    .servers-modal, .settings-modal {
        margin: 0.25rem;
        max-height: 98vh;
    }
    
    .servers-container, .settings-container {
        max-height: 85vh;
    }
    
    .available-server-item {
        padding: 1rem;
    }
    
    .server-info-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
    
    .server-info-item span {
        text-align: left;
    }
}

@media (max-height: 600px) {
    .servers-modal, .settings-modal {
        max-height: 95vh;
    }
    
    .servers-container, .settings-container {
        height: 70vh;
        max-height: 70vh;
    }
    
    .available-servers {
        max-height: calc(35vh - 60px);
    }
    
    .server-info-details {
        max-height: calc(35vh - 120px);
    }
    
    .settings-content {
        max-height: calc(35vh - 120px);
    }
}

/* Focus styles for accessibility */
*:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* IRC Channel List Styles */
.channel-list-container {
    margin-top: 0.5rem;
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-color);
}

.irc-channel-list {
    display: flex;
    flex-direction: column;
}

.irc-channel-item {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-color);
}

.irc-channel-item:last-child {
    border-bottom: none;
}

.irc-channel-item:hover {
    background: var(--light-color);
}

.irc-channel-item.joinable {
    cursor: pointer;
}

.irc-channel-item.joinable:hover {
    background: rgba(0,123,255,0.1);
    border-color: var(--primary-color);
}

.channel-name {
    font-weight: 600;
    color: var(--primary-color);
    display: inline-block;
    margin-right: 0.5rem;
}

.channel-users {
    font-size: 0.875rem;
    color: var(--secondary-color);
    float: right;
}

.channel-topic {
    font-size: 0.875rem;
    color: var(--text-color);
    margin-top: 0.25rem;
    font-style: italic;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.channel-more {
    padding: 0.5rem;
    text-align: center;
    font-style: italic;
    color: var(--secondary-color);
    border-top: 1px solid var(--border-color);
}

.channel-load-more {
    padding: 0.75rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.channel-load-more button {
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.875rem;
    transition: var(--transition);
}

.channel-load-more button:hover {
    background: #0056b3;
}

.text-success {
    color: #28a745;
}

.text-danger {
    color: #dc3545;
}

[data-theme="dark"] .irc-channel-item:hover {
    background: var(--dark-color);
}

[data-theme="dark"] .irc-channel-item.joinable:hover {
    background: rgba(0,123,255,0.2);
}

.settings-modal .modal-content {
    max-width: 900px;
    width: 95vw;
    max-height: 90vh;
    height: 90vh;
    display: flex;
    flex-direction: column;
}