:root {
    --primary-color: #007bff;
    --danger-color: #dc3545;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --secondary-color: #6c757d;
    --dark-bg: #1a1a1a;
    --card-bg: #2d2d2d;
    --border-color: #404040;
    --text-color: #e0e0e0;
    --text-muted: #a0a0a0;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Smooth transitions */
a, button, input, select, textarea {
    transition: all 0.2s ease;
}

/* Focus styles */
input:focus, select:focus, textarea:focus, button:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.header {
    background-color: var(--card-bg);
    padding: 1.5rem 2rem;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 0;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background-color: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
    font-size: 0.95rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.form-group .error {
    color: var(--danger-color);
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

.btn {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

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

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

.btn-secondary:hover:not(:disabled) {
    background-color: #545b62;
}

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

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

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

.btn-success:hover:not(:disabled) {
    background-color: #218838;
}

.btn-small {
    padding: 0.25rem 0.5rem;
    font-size: 0.85rem;
}

/* Server Manager Styles */
.servers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.server-card {
    background-color: var(--dark-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    position: relative;
    transition: all 0.3s ease;
}

.server-card:hover {
    border-color: var(--primary-color);
}

.server-card.active {
    border-color: var(--success-color);
    background-color: rgba(40, 167, 69, 0.05);
}

.server-card-badge {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background-color: var(--success-color);
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.server-card-header {
    margin-bottom: 0.75rem;
}

.server-card-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
}

.server-card-info {
    margin-bottom: 1rem;
}

.server-info-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.server-info-label {
    color: var(--text-muted);
    font-weight: 500;
}

.server-info-value {
    color: var(--text-color);
    text-align: right;
    word-break: break-all;
}

.server-card-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.active-indicator {
    color: var(--success-color);
    font-weight: 600;
    font-size: 0.85rem;
}

.server-selector {
    margin-top: 1.5rem;
    padding: 1rem;
    background-color: var(--dark-bg);
    border-radius: 6px;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.server-selector label {
    font-weight: 600;
    color: var(--text-color);
    white-space: nowrap;
}

.server-select {
    flex: 1;
    padding: 0.5rem 0.75rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-color);
    font-size: 0.95rem;
    cursor: pointer;
}

.server-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.server-form-container {
    margin-bottom: 1.5rem;
}

.server-form-card {
    background-color: var(--dark-bg);
    border: 1px solid var(--primary-color);
    border-radius: 8px;
    padding: 1.5rem;
}

.server-form-card h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Channel Cards */
.channels-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.channel-card {
    background-color: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.channel-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.channel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.channel-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* Preview Styles */
.preview-container {
    margin-bottom: 1rem;
}

.stream-preview-container {
    position: relative;
    width: 100%;
    background-color: #000;
    border-radius: 4px;
    overflow: hidden;
    aspect-ratio: 16 / 9;
}

.stream-preview-video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.stream-preview-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.8);
    color: var(--text-muted);
}

.stream-preview-placeholder {
    width: 100%;
    aspect-ratio: 16 / 9;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 4px;
    border: 1px dashed var(--border-color);
}

.preview-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.preview-text {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.btn-icon {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.25rem;
    transition: transform 0.2s ease;
    line-height: 1;
}

.btn-icon:hover {
    transform: scale(1.2);
}

.toggle-preview-btn {
    opacity: 0.7;
}

.toggle-preview-btn:hover {
    opacity: 1;
}

.channel-info {
    margin-bottom: 0.5rem;
}

.channel-info-label {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.channel-info-value {
    color: var(--text-color);
    font-size: 0.9rem;
    word-break: break-all;
}

.channel-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

/* Connection List */
.connection-filters {
    display: flex;
    gap: 0.5rem;
}

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

.connection-groups {
    margin-top: 1rem;
}

.connection-group {
    background-color: var(--dark-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.connection-group-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.connection-group-header h4 {
    margin: 0;
    font-size: 1rem;
    color: var(--text-color);
}

.connection-count {
    font-size: 0.85rem;
    color: var(--text-muted);
    background-color: var(--card-bg);
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
}

.connection-list {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.connection-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: border-color 0.2s ease;
}

.connection-item:hover {
    border-color: var(--primary-color);
}

.connection-info {
    flex: 1;
}

.connection-id-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
}

.connection-id {
    font-weight: 500;
    color: var(--text-color);
    font-size: 0.95rem;
}

.connection-type-badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
}

.connection-type-badge.type-in {
    background-color: var(--success-color);
}

.connection-type-badge.type-out {
    background-color: var(--primary-color);
}

.connection-details {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.connection-details span {
    display: inline-block;
}

.connection-status {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-left: 0.5rem;
}

.connection-status.active {
    background-color: var(--success-color);
    color: white;
}

/* Toast Notifications */
#toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    min-width: 250px;
    max-width: 400px;
    padding: 1rem;
    background-color: var(--card-bg);
    border-left: 4px solid;
    border-radius: 4px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
}

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

.toast.success {
    border-left-color: var(--success-color);
}

.toast.error {
    border-left-color: var(--danger-color);
}

.toast.warning {
    border-left-color: var(--warning-color);
}

.toast.info {
    border-left-color: var(--primary-color);
}

.toast-header {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.toast-message {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 999;
}

.loading-overlay.hidden {
    display: none;
}

.spinner {
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1001;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 8px;
    max-width: 500px;
    width: 90%;
}

.modal-content h3 {
    margin-bottom: 1rem;
}

.modal-content p {
    margin-bottom: 1.5rem;
    color: var(--text-muted);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

/* Server Status */
#server-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--secondary-color);
}

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

.status-indicator.disconnected {
    background-color: var(--danger-color);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .header-right {
        width: 100%;
        justify-content: space-between;
    }

    .channels-grid {
        grid-template-columns: 1fr;
    }

    .servers-grid {
        grid-template-columns: 1fr;
    }

    #toast-container {
        left: 1rem;
        right: 1rem;
    }

    .toast {
        max-width: 100%;
    }

    .connection-filters {
        flex-wrap: wrap;
    }

    .connection-details {
        flex-direction: column;
        gap: 0.25rem;
    }

    .server-selector {
        flex-direction: column;
        align-items: stretch;
    }

    .login-card {
        padding: 2rem 1.5rem;
    }
}

.hidden {
    display: none !important;
}

/* Login Styles */
.login-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--dark-bg) 0%, #0f0f0f 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.login-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 2.5rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.login-header p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.login-footer {
    text-align: center;
    margin-top: 1.5rem;
}

.login-footer small {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.btn-block {
    width: 100%;
}

/* Header Improvements */
.header {
    background-color: var(--card-bg);
    padding: 1rem 2rem;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

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

.user-info {
    color: var(--text-color);
    font-size: 0.9rem;
    padding: 0.25rem 0.75rem;
    background-color: var(--dark-bg);
    border-radius: 4px;
    border: 1px solid var(--border-color);
}