/* ============================================
   Pinky Language Compiler - Styles
   Modern dark theme with glassmorphism effects
   ============================================ */

:root {
    /* Color Palette */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: rgba(26, 26, 37, 0.8);

    --accent-pink: #ff6b9d;
    --accent-purple: #a855f7;
    --accent-blue: #3b82f6;
    --accent-cyan: #06b6d4;
    --accent-gradient: linear-gradient(135deg, #ff6b9d 0%, #a855f7 50%, #3b82f6 100%);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(255, 107, 157, 0.3);

    /* Syntax Highlighting */
    --syntax-keyword: #ff79c6;
    --syntax-string: #f1fa8c;
    --syntax-number: #bd93f9;
    --syntax-comment: #6272a4;
    --syntax-operator: #ff6b9d;
    --syntax-identifier: #8be9fd;

    /* Spacing */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    /* Fonts */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

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

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

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

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

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

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    font-size: 2rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

.logo-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding-left: 1.5rem;
    border-left: 1px solid var(--border-color);
}

.header-nav {
    display: flex;
    gap: 1rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.course-link {
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.15), rgba(168, 85, 247, 0.15));
    border: 1px solid rgba(255, 107, 157, 0.3);
}

.course-link:hover {
    background: linear-gradient(135deg, rgba(255, 107, 157, 0.25), rgba(168, 85, 247, 0.25));
    border-color: var(--accent-pink);
    box-shadow: 0 0 20px rgba(255, 107, 157, 0.2);
}

/* Main Content */
.main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    padding: 1.5rem 2rem;
    flex: 1;
}

/* Panels */
.panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border-color);
}

.panel-header h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Editor Panel */
.editor-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.select-examples {
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.select-examples:hover {
    border-color: var(--accent-pink);
}

.select-examples:focus {
    outline: none;
    border-color: var(--accent-pink);
    box-shadow: 0 0 0 3px rgba(255, 107, 157, 0.2);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent-pink);
    cursor: pointer;
}

.editor-container {
    flex: 1;
    position: relative;
    display: flex;
}

#code-editor {
    flex: 1;
    padding: 1rem;
    padding-left: 3.5rem;
    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);
}

.line-numbers {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3rem;
    padding: 1rem 0.5rem;
    background: rgba(0, 0, 0, 0.3);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
    text-align: right;
    user-select: none;
    overflow: hidden;
}

.button-group {
    display: flex;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid var(--border-color);
}

.btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 107, 157, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(255, 107, 157, 0.4);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-purple);
}

.btn-download {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    margin-left: auto;
}

.btn-download:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.3);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Results Panel */
.status {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.status.loading {
    background: rgba(251, 191, 36, 0.2);
    color: #fbbf24;
}

.status.success {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
}

.status.error {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0;
    padding: 0 1rem;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
}

.tab {
    padding: 0.8rem 1.2rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    white-space: nowrap;
}

.tab:hover {
    color: var(--text-secondary);
}

.tab.active {
    color: var(--accent-pink);
}

.tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-gradient);
}

/* Tab Contents */
.tab-contents {
    flex: 1;
    overflow: hidden;
    position: relative;
}

.tab-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: none;
    overflow: auto;
}

.tab-content.active {
    display: block;
}

.output {
    padding: 1rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.6;
    white-space: pre-wrap;
    min-height: 100%;
}

.ast-image-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    overflow: auto;
}

.ast-image-container img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

.placeholder-text {
    color: var(--text-muted);
    font-style: italic;
}

.code-output {
    color: var(--syntax-identifier);
}

/* Tokens Display */
.tokens-output {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-content: flex-start;
}

.token {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.3rem 0.6rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    font-size: 0.8rem;
}

.token-type {
    color: var(--accent-pink);
    font-weight: 500;
}

.token-value {
    color: var(--syntax-string);
}

/* AST Display */
.ast-output {
    color: var(--text-secondary);
}

.ast-output .node-type {
    color: var(--accent-purple);
    font-weight: 500;
}

.ast-output .node-value {
    color: var(--syntax-number);
}

/* Error Display */
.error-message {
    color: #ef4444;
    padding: 1rem;
    background: rgba(239, 68, 68, 0.1);
    border-left: 3px solid #ef4444;
    margin: 1rem;
    border-radius: var(--radius-sm);
}

/* Footer */
.footer {
    padding: 1.5rem 2rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.footer a {
    color: var(--accent-pink);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer a:hover {
    color: var(--accent-purple);
    text-decoration: underline;
}

.footer-links {
    margin-top: 0.5rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
    align-items: center;
}

.footer-links span {
    color: var(--border-color);
}

/* Responsive */
@media (max-width: 1200px) {
    .main {
        grid-template-columns: 1fr;
    }

    .editor-panel {
        max-height: 50vh;
    }
}

@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .header-left {
        flex-direction: column;
        gap: 0.5rem;
    }

    .tagline {
        border-left: none;
        padding-left: 0;
    }

    .main {
        padding: 1rem;
    }

    .button-group {
        flex-wrap: wrap;
    }

    .btn-download {
        margin-left: 0;
        width: 100%;
        justify-content: center;
    }

    .tabs {
        padding: 0;
    }

    .tab {
        padding: 0.6rem 0.8rem;
        font-size: 0.75rem;
    }
}

/* Loading Animation */
@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.loading-indicator {
    animation: pulse 1.5s ease-in-out infinite;
}

/* Smooth transitions for dynamic content */
.output,
.tab-content {
    transition: opacity 0.3s ease;
}