@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&family=Orbitron:wght@400;500;600;700;800;900&display=swap');

:root {
    /* Primary Theme - Cyan */
    --primary: #00ffff;
    --primary-dim: #00cccc;
    --primary-glow: rgba(0, 255, 255, 0.5);
    --secondary: #ff00ff;
    --secondary-dim: #cc00cc;
    --accent: #ffff00;
    --success: #00ff00;
    --warning: #ffaa00;
    --danger: #ff0040;
    
    /* Backgrounds */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-panel: rgba(18, 18, 26, 0.95);
    --bg-hover: rgba(0, 255, 255, 0.1);
    
    /* Text */
    --text-primary: #ffffff;
    --text-secondary: #888899;
    --text-muted: #555566;
    
    /* Borders */
    --border-color: rgba(0, 255, 255, 0.3);
    --border-glow: 0 0 10px var(--primary-glow);
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Border Radius */
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 8px;
    
    /* Fonts */
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --font-display: 'Orbitron', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Theme Variations */
[data-theme="dark-green"] {
    --primary: #00ff00;
    --primary-dim: #00cc00;
    --primary-glow: rgba(0, 255, 0, 0.5);
    --secondary: #00ffff;
}

[data-theme="dark-red"] {
    --primary: #ff0040;
    --primary-dim: #cc0033;
    --primary-glow: rgba(255, 0, 64, 0.5);
    --secondary: #ff6600;
}

[data-theme="dark-purple"] {
    --primary: #aa00ff;
    --primary-dim: #8800cc;
    --primary-glow: rgba(170, 0, 255, 0.5);
    --secondary: #ff00ff;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 14px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-mono);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    cursor: crosshair;
    line-height: 1.6;
}

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

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-dim);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
    box-shadow: var(--border-glow);
}

/* Selection */
::selection {
    background: var(--primary);
    color: var(--bg-primary);
}

/* Background Effects */
.matrix-rain {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.05;
}

.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    background: 
        linear-gradient(90deg, transparent 99%, var(--border-color) 100%),
        linear-gradient(0deg, transparent 99%, var(--border-color) 100%);
    background-size: 50px 50px;
    opacity: 0.3;
}

.scan-line {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    z-index: 1000;
    animation: scanline 4s linear infinite;
    pointer-events: none;
    opacity: 0.5;
}

@keyframes scanline {
    0% { transform: translateY(0); }
    100% { transform: translateY(100vh); }
}

/* HUD Corners */
.hud-corner {
    position: fixed;
    width: 60px;
    height: 60px;
    border: 2px solid var(--primary);
    pointer-events: none;
    z-index: 100;
    opacity: 0.6;
}

.hud-corner.top-left {
    top: 10px;
    left: 10px;
    border-right: none;
    border-bottom: none;
}

.hud-corner.top-right {
    top: 10px;
    right: 10px;
    border-left: none;
    border-bottom: none;
}

.hud-corner.bottom-left {
    bottom: 10px;
    left: 10px;
    border-right: none;
    border-top: none;
}

.hud-corner.bottom-right {
    bottom: 10px;
    right: 10px;
    border-left: none;
    border-top: none;
}

/* App Container */
.app-container {
    position: relative;
    z-index: 10;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
}

/* Header */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    backdrop-filter: blur(10px);
}

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

.logo-icon {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--primary);
    text-shadow: 0 0 20px var(--primary-glow);
}

.logo-bracket {
    color: var(--secondary);
}

.logo-title h1 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--primary);
    text-shadow: 0 0 10px var(--primary-glow);
}

.logo-title .subtitle {
    display: block;
    font-size: 0.7rem;
    color: var(--text-secondary);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

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

.system-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    margin-right: var(--spacing-md);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 10px var(--success);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.status-text {
    font-size: 0.75rem;
    color: var(--success);
    letter-spacing: 0.1em;
}

/* Navigation */
.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.nav-tabs {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--bg-panel);
    padding: var(--spacing-xs);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.nav-tab {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    border-radius: var(--radius-sm);
}

.nav-tab:hover {
    color: var(--primary);
    background: var(--bg-hover);
}

.nav-tab.active {
    color: var(--primary);
    background: var(--bg-tertiary);
    border-color: var(--primary);
    box-shadow: inset 0 0 10px var(--primary-glow);
}

.nav-tab svg {
    opacity: 0.7;
}

.nav-tab.active svg {
    opacity: 1;
}

.nav-info {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.keyboard-hint kbd {
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    font-family: var(--font-mono);
}

/* Main Content */
.main-content {
    flex: 1;
    min-height: 0;
}

.tab-content {
    display: none;
    height: 100%;
}

.tab-content.active {
    display: block;
    animation: fadeIn var(--transition-normal);
}

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

/* Panels */
.panel {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.panel-header h3 {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* Code Editor */
.code-editor {
    width: 100%;
    flex: 1;
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border: none;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
    resize: none;
    outline: none;
}

.code-editor::placeholder {
    color: var(--text-muted);
}

.code-editor.small {
    min-height: 80px;
    max-height: 150px;
}

.editor-container {
    display: flex;
    flex: 1;
    min-height: 200px;
    background: var(--bg-primary);
}

.line-numbers {
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
    text-align: right;
    user-select: none;
    border-right: 1px solid var(--border-color);
    min-width: 40px;
}

.editor-footer {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Footer */
.main-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
    font-size: 0.75rem;
}

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

.footer-center {
    color: var(--primary);
}

.terminal-prompt {
    color: var(--success);
}

.typing-text {
    border-right: 2px solid var(--primary);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    50% { border-color: transparent; }
}

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

.footer-link {
    cursor: pointer;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--primary);
}

/* Modals */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
    animation: fadeIn var(--transition-fast);
}

.modal-content {
    background: var(--bg-panel);
    border: 1px solid var(--primary);
    border-radius: var(--radius-md);
    width: 90%;
    max-width: 500px;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: 0 0 30px var(--primary-glow);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-family: var(--font-display);
    color: var(--primary);
    letter-spacing: 0.1em;
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    max-height: calc(80vh - 60px);
}

.close-modal {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.close-modal:hover {
    color: var(--danger);
}

/* Sidebar */
.history-sidebar {
    position: fixed;
    top: 0;
    right: -400px;
    width: 400px;
    height: 100%;
    background: var(--bg-panel);
    border-left: 1px solid var(--primary);
    z-index: 1500;
    transition: right var(--transition-normal);
    display: flex;
    flex-direction: column;
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
}

.history-sidebar.active {
    right: 0;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h3 {
    font-family: var(--font-display);
    color: var(--primary);
}

.close-sidebar {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
}

.close-sidebar:hover {
    color: var(--danger);
}

.history-controls {
    padding: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

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

.history-item {
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.history-item:hover {
    border-color: var(--primary);
    box-shadow: 0 0 10px var(--primary-glow);
}

.history-item .type {
    font-size: 0.7rem;
    color: var(--secondary);
    text-transform: uppercase;
}

.history-item .preview {
    font-size: 0.8rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: var(--spacing-xs);
}

.history-item .time {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-tertiary);
    border: 1px solid var(--primary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    z-index: 3000;
    opacity: 0;
    transition: all var(--transition-normal);
    box-shadow: 0 0 20px var(--primary-glow);
}

.toast.active {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

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

/* Settings Sections */
.settings-section {
    margin-bottom: var(--spacing-lg);
}

.settings-section h4 {
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
}

.settings-section label {
    display: block;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.shortcuts-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.shortcut {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.shortcut kbd {
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    color: var(--primary);
    font-family: var(--font-mono);
    font-size: 0.8rem;
}