/* Modern CSS Custom Properties */
:root {
    /* Dark Theme */
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --bg-glass: rgba(13, 17, 23, 0.8);
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent-primary: #58a6ff;
    --accent-secondary: #f85149;
    --accent-success: #3fb950;
    --accent-warning: #d29922;
    --prompt-color: #58a6ff;
    --cursor-color: #f85149;
    --border-color: #30363d;
    --shadow-color: rgba(0, 0, 0, 0.3);
    
    /* Typography */
    --font-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
    --font-size-base: 14px;
    --font-size-sm: 12px;
    --line-height: 1.5;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Border radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Light theme variables */
[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f6f8fa;
    --bg-tertiary: #f0f0f0;
    --bg-glass: rgba(255, 255, 255, 0.8);
    --text-primary: #24292f;
    --text-secondary: #656d76;
    --text-muted: #8c959f;
    --accent-primary: #0969da;
    --accent-secondary: #cf222e;
    --accent-success: #1a7f37;
    --accent-warning: #bf8700;
    --prompt-color: #0969da;
    --cursor-color: #cf222e;
    --border-color: #d0d7de;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-mono);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    line-height: var(--line-height);
    min-height: 100vh;
    overflow: hidden;
    position: relative;
}

/* Container and layout */
.container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 100%;
    margin: 0 auto;
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 20px 40px var(--shadow-color);
}

/* Terminal header */
.terminal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-glass);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    min-height: 40px;
}

.window-controls {
    display: flex;
    gap: var(--spacing-xs);
}

.control-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.control-btn.close {
    background: #ff5f57;
}

.control-btn.minimize {
    background: #ffbd2e;
}

.control-btn.maximize {
    background: #28ca42;
}

.control-btn:hover {
    opacity: 0.8;
    transform: scale(1.1);
}

.terminal-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
    justify-content: center;
}

.title-text {
    font-weight: 500;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

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

.distro-selector {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.distro-selector:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-primary);
}

.distro-selector:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.2);
}

.theme-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs);
    cursor: pointer;
    font-size: 14px;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
}

.theme-toggle:hover {
    background: var(--bg-tertiary);
    transform: scale(1.05);
}

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

.session-info {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* Main terminal */
.terminal {
    flex: 1;
    padding: var(--spacing-md);
    overflow-y: auto;
    background: var(--bg-secondary);
    position: relative;
    cursor: text;
}

.terminal-output {
    min-height: calc(100% - 2rem);
    word-wrap: break-word;
}

/* Output styling */
.output-line {
    white-space: pre-wrap;
    word-break: break-word;
    line-height: var(--line-height);
    margin-bottom: 2px;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

.output-command {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.output-error {
    color: var(--accent-secondary);
}

.output-success {
    color: var(--accent-success);
}

.output-warning {
    color: var(--accent-warning);
}

/* Terminal input line */
.terminal-input-line {
    display: flex;
    align-items: center;
    margin-top: var(--spacing-sm);
    position: sticky;
    bottom: 0;
    background: var(--bg-secondary);
    padding: var(--spacing-sm) 0;
    border-top: 1px solid var(--border-color);
}

.prompt {
    color: var(--prompt-color);
    margin-right: var(--spacing-sm);
    white-space: nowrap;
    font-weight: 500;
}

.input-container {
    flex: 1;
    position: relative;
}

.command-input {
    width: 100%;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: inherit;
    font-size: inherit;
    outline: none;
    padding: var(--spacing-xs) 0;
    caret-color: var(--cursor-color);
    transition: all var(--transition-fast);
}

.command-input:focus {
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
}

/* Suggestions */
.suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    max-height: 200px;
    overflow-y: auto;
    z-index: 100;
    display: none;
    box-shadow: 0 8px 32px var(--shadow-color);
}

.suggestions.show {
    display: block;
    animation: slideDown 0.2s ease;
}

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

.suggestion-item {
    padding: var(--spacing-sm);
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.suggestion-item:hover,
.suggestion-item.selected {
    background: var(--bg-primary);
}

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

.suggestion-command {
    font-weight: 500;
    color: var(--accent-primary);
}

.suggestion-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* Suggestions panel */
.suggestions-panel {
    position: fixed;
    top: 50%;
    right: var(--spacing-md);
    transform: translateY(-50%);
    width: 300px;
    max-height: 400px;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: 0 20px 40px var(--shadow-color);
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.suggestions-panel.show {
    opacity: 1;
    visibility: visible;
}

.suggestions-header {
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-xs);
}

.suggestions-list {
    max-height: 300px;
    overflow-y: auto;
}

/* Status bar */
.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--bg-glass);
    border-top: 1px solid var(--border-color);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    backdrop-filter: blur(10px);
}

.status-left, .status-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.separator {
    color: var(--border-color);
}

.current-path {
    color: var(--accent-primary);
    font-weight: 500;
}

/* Loading screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: opacity var(--transition-slow);
}

.loading-screen.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-content {
    text-align: center;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

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

.loading-text {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* Custom scrollbar */
.terminal::-webkit-scrollbar,
.suggestions::-webkit-scrollbar,
.suggestions-list::-webkit-scrollbar {
    width: 8px;
}

.terminal::-webkit-scrollbar-track,
.suggestions::-webkit-scrollbar-track,
.suggestions-list::-webkit-scrollbar-track {
    background: transparent;
}

.terminal::-webkit-scrollbar-thumb,
.suggestions::-webkit-scrollbar-thumb,
.suggestions-list::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
    transition: background var(--transition-fast);
}

.terminal::-webkit-scrollbar-thumb:hover,
.suggestions::-webkit-scrollbar-thumb:hover,
.suggestions-list::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        margin: 0;
        border-radius: 0;
        height: 100vh;
    }
    
    .terminal-header {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .terminal {
        padding: var(--spacing-sm);
    }
    
    .suggestions-panel {
        position: fixed;
        top: auto;
        bottom: 80px;
        right: var(--spacing-sm);
        left: var(--spacing-sm);
        width: auto;
        transform: none;
    }
    
    .terminal-title .title-text {
        display: none;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-base: 12px;
    }
    
    .status-bar {
        flex-direction: column;
        gap: var(--spacing-xs);
        align-items: flex-start;
    }
    
    .window-controls {
        display: none;
    }
}

/* Print styles */
@media print {
    .terminal-header,
    .status-bar,
    .suggestions-panel,
    .loading-screen {
        display: none;
    }
    
    .container {
        box-shadow: none;
        border-radius: 0;
    }
    
    .terminal {
        background: white;
        color: black;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --bg-primary: #000000;
        --bg-secondary: #111111;
        --text-primary: #ffffff;
        --border-color: #555555;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}