/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Font faces */
@font-face {
    font-family: 'Inter';
    src: url('../fonts/Inter-VariableFont_opsz,wght.ttf') format('truetype-variations');
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'JetBrains Mono';
    src: url('../fonts/JetBrainsMono-Regular.woff2') format('woff2');
    font-weight: 100 800;
    font-style: normal;
    font-display: swap;
}

:root {
    /* Color palette */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;

    /* Background colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-dark: #0f172a;
    --bg-darker: #020617;

    /* Text colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-inverse: #ffffff;

    /* Border colors */
    --border-light: #e2e8f0;
    --border-medium: #cbd5e1;
    --border-dark: #475569;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

    /* Fonts */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
}

/* Dark mode variables */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #0f172a;
        --bg-secondary: #1e293b;
        --bg-tertiary: #334155;
        --text-primary: #f1f5f9;
        --text-secondary: #cbd5e1;
        --text-muted: #94a3b8;
        --border-light: #334155;
        --border-medium: #475569;
        --border-dark: #64748b;
    }
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.5;
    overflow: hidden;
}

/* App container */
.app-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navigation */
.navbar {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    z-index: 50;
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-xl);
    max-width: 100%;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-brand i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.nav-brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

.nav-brand a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.nav-brand a:hover {
    color: var(--primary-color);
}

.nav-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    background: var(--bg-tertiary);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid var(--border-light);
    transition: all var(--transition-fast);
}

.status-indicator.connected {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success-color);
    border-color: rgba(16, 185, 129, 0.3);
}

.status-indicator.connected i {
    color: var(--success-color);
    animation: pulse-green 2s infinite;
}

.status-indicator.disconnected {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger-color);
    border-color: rgba(239, 68, 68, 0.3);
}

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

@keyframes pulse-green {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.6;
    }
}

.current-file {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
}

/* Main content */
.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 300px;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.sidebar-header h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.file-list {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
}

.file-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    user-select: none;
}

.file-item:hover {
    background: var(--bg-tertiary);
    transform: translateX(2px);
}

.file-item.active {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    font-weight: 500;
}

.file-item i {
    color: var(--text-muted);
    width: 1rem;
}

.file-item.active i {
    color: var(--primary-color);
}

/* Log viewer */
.log-viewer {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Controls panel */
.controls-panel {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.control-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.control-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.control-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* Toggle switch */
.switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-medium);
    transition: var(--transition-fast);
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: var(--transition-fast);
    border-radius: 50%;
}

input:checked+.slider {
    background-color: var(--primary-color);
}

input:checked+.slider:before {
    transform: translateX(24px);
}

/* Input groups */
.input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.input-group input {
    padding: var(--spacing-sm) var(--spacing-md);
    padding-left: 2.5rem;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.875rem;
    width: 200px;
    transition: all var(--transition-fast);
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.input-group i {
    position: absolute;
    left: var(--spacing-md);
    color: var(--text-muted);
    font-size: 0.875rem;
    z-index: 1;
}

.btn-clear {
    position: absolute;
    right: var(--spacing-sm);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast);
}

.btn-clear:hover {
    color: var(--danger-color);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-icon {
    padding: var(--spacing-sm);
    width: 2.5rem;
    height: 2.5rem;
    justify-content: center;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.btn-secondary:hover {
    background: var(--border-light);
    color: var(--text-primary);
    transform: translateY(-1px);
}

/* Log container */
.log-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.log-header {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    padding: var(--spacing-md) var(--spacing-lg);
}

.log-stats {
    display: flex;
    gap: var(--spacing-lg);
}

.stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.stat i {
    color: var(--text-muted);
}

/* Log content */
.log-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    background: var(--bg-darker);
    color: var(--text-inverse);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* Welcome message */
.welcome-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    color: var(--text-secondary);
}

.welcome-icon {
    font-size: 4rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}

.welcome-message h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.welcome-message p {
    font-size: 1rem;
    margin-bottom: var(--spacing-xl);
    max-width: 400px;
}

.features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 0.875rem;
}

.feature i {
    color: var(--primary-color);
    width: 1.25rem;
}

/* Log lines */
.log-line {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    cursor: pointer;
    white-space: pre-wrap;
    word-break: break-all;
    background: rgba(255, 255, 255, 0.02);
    border-left: 3px solid transparent;
}

.log-line:hover {
    background: rgba(255, 255, 255, 0.05);
}

.log-line.expanded {
    background: rgba(37, 99, 235, 0.1);
    border-left-color: var(--primary-color);
}

.log-line.highlighted {
    animation: pulse 1s infinite alternate;
    background: rgba(245, 158, 11, 0.2);
    border-left-color: var(--warning-color);
}

.log-line.hidden {
    display: none;
}

/* Log line types */
.log-line.success {
    border-left-color: var(--success-color);
    background: rgba(16, 185, 129, 0.1);
}

.log-line.error {
    border-left-color: var(--danger-color);
    background: rgba(239, 68, 68, 0.1);
}

.log-line.warning {
    border-left-color: var(--warning-color);
    background: rgba(245, 158, 11, 0.1);
}

.log-line.info {
    border-left-color: var(--accent-color);
    background: rgba(6, 182, 212, 0.1);
}

.log-line.reconnect-message {
    border-left-color: var(--warning-color);
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning-color);
    font-style: italic;
    text-align: center;
    margin: var(--spacing-sm) 0;
}

.log-line.reconnect-message i {
    margin-right: var(--spacing-xs);
}

.log-line.reconnect-success {
    border-left-color: var(--success-color);
    background: rgba(16, 185, 129, 0.15);
    color: var(--success-color);
    font-style: italic;
    text-align: center;
    margin: var(--spacing-sm) 0;
}

.log-line.reconnect-success i {
    margin-right: var(--spacing-xs);
}

/* Loading states */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.loading-overlay.visible {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    background: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.loading-spinner i {
    font-size: 2rem;
    color: var(--primary-color);
}

/* Animations */
@keyframes pulse {
    from {
        opacity: 0.8;
    }

    to {
        opacity: 1;
    }
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.log-line {
    animation: fadeIn 0.3s ease-out;
}

/* Scrollbar styling */
.log-content::-webkit-scrollbar,
.file-list::-webkit-scrollbar {
    width: 8px;
}

.log-content::-webkit-scrollbar-track,
.file-list::-webkit-scrollbar-track {
    background: transparent;
}

.log-content::-webkit-scrollbar-thumb,
.file-list::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: 4px;
}

.log-content::-webkit-scrollbar-thumb:hover,
.file-list::-webkit-scrollbar-thumb:hover {
    background: var(--border-dark);
}

/* Responsive design */
@media (max-width: 768px) {
    .sidebar {
        width: 250px;
    }

    .nav-content {
        padding: var(--spacing-md);
    }

    .controls-panel {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-md);
    }

    .control-group {
        flex-wrap: wrap;
        justify-content: space-between;
    }

    .input-group input {
        width: 150px;
    }
}

@media (max-width: 480px) {
    .main-content {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: 200px;
        border-right: none;
        border-bottom: 1px solid var(--border-light);
    }

    .nav-info {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}