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

:root {
    /* Duolingo-inspired color palette with modifications */
    --primary-color: #1cb0f6;
    --primary-dark: #1899d6;
    --primary-light: #58cc02;
    --secondary-color: #ff9600;
    --accent-color: #ce82ff;
    --text-dark: #3c3c3c;
    --text-light: #777777;
    --bg-light: #f7f7f7;
    --bg-white: #ffffff;
    --border-color: #e5e5e5;
    --success-color: #58cc02;
    --warning-color: #ff9600;
    --error-color: #ff4b4b;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header */
.header {
    background-color: var(--bg-white);
    border-bottom: 2px solid var(--border-color);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    text-decoration: none;
}

.nav {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: nowrap;
    white-space: nowrap;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    font-size: 0.9rem;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-xl) 0;
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.95;
}

/* Main Content */
.main {
    padding: var(--spacing-lg) 0;
}

.section {
    margin-bottom: var(--spacing-xl);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Cards Grid */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 2px solid transparent;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.card-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--primary-light);
    color: white;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
}

.card-badge.badge-intermediate {
    background-color: var(--secondary-color);
}

.card-badge.badge-resource {
    background-color: var(--accent-color);
}

.card-time {
    color: var(--text-light);
    font-size: 0.875rem;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.card-description {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.card-features {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.card-features li {
    padding: var(--spacing-xs) 0;
    color: var(--text-dark);
    font-size: 0.9375rem;
}

.card-actions {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: nowrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 700;
    text-decoration: none;
    text-align: center;
    transition: all 0.2s ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 0.9rem;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: scale(1.05);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

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

/* Resource Grid */
.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.resource-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    text-decoration: none;
    color: var(--text-dark);
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
    border: 2px solid var(--border-color);
}

.resource-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.resource-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.resource-card h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
}

.resource-card p {
    color: var(--text-light);
    font-size: 0.9375rem;
}

/* Footer */
.footer {
    background-color: var(--text-dark);
    color: white;
    text-align: center;
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
}

.footer p {
    margin: var(--spacing-xs) 0;
    opacity: 0.8;
}

/* Lab Content Styles */
.lab-content {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    margin: var(--spacing-lg) 0;
    box-shadow: var(--shadow-md);
}

.lab-content h1 {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    border-bottom: 3px solid var(--primary-color);
    padding-bottom: var(--spacing-sm);
}

.lab-content h2 {
    color: var(--text-dark);
    font-size: 2rem;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.lab-content h3 {
    color: var(--text-dark);
    font-size: 1.5rem;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.lab-content p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

.lab-content ul, .lab-content ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.lab-content li {
    margin-bottom: var(--spacing-xs);
}

.lab-content code {
    background-color: var(--bg-light);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    color: var(--error-color);
}

.lab-content pre {
    background-color: var(--text-dark);
    color: var(--bg-light);
    padding: var(--spacing-md);
    padding-top: 3.5rem; /* Space for copy button */
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: 0; /* Margin handled by wrapper */
    position: relative;
}

.lab-content pre code {
    background: none;
    color: inherit;
    padding: 0;
    display: block;
}

/* Code block wrapper for fixed copy button */
.code-block-wrapper {
    position: relative;
    margin: var(--spacing-md) 0;
}

/* Copy button for code blocks */
.copy-button {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    padding: 0.25rem 0.5rem;
    background-color: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 400;
    transition: opacity 0.2s ease, background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    z-index: 10;
    opacity: 0;
}

.code-block-wrapper:hover .copy-button {
    opacity: 1;
}

.copy-button:hover {
    background-color: rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.3);
}

.copy-button:active {
    background-color: rgba(255, 255, 255, 0.3);
}

.lab-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: var(--spacing-md);
    margin: var(--spacing-md) 0;
    color: var(--text-light);
    font-style: italic;
}

.lab-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-md) 0;
}

.lab-content th, .lab-content td {
    border: 1px solid var(--border-color);
    padding: var(--spacing-sm);
    text-align: left;
}

.lab-content th {
    background-color: var(--bg-light);
    font-weight: 700;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .cards {
        grid-template-columns: 1fr;
    }
    
    .resource-grid {
        grid-template-columns: 1fr;
    }
    
    .card-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .nav {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .header-content {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card, .resource-card {
    animation: fadeIn 0.5s ease-out;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }

/* Download Button */
.download-btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(28, 176, 246, 0.3);
    margin-left: 0.5rem;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(28, 176, 246, 0.4);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.download-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(28, 176, 246, 0.3);
}
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }

/* Made with Bob */


/* Markdown Content Images */
.lab-content img,
#markdown-content img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 2rem auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

/* Responsive image sizing */
@media (min-width: 768px) {
    .lab-content img,
    #markdown-content img {
        max-width: 80%;
    }
}

@media (min-width: 1024px) {
    .lab-content img,
    #markdown-content img {
        max-width: 70%;
    }
}

/* SaaS Notice */
.saas-notice {
    margin-top: 1.5rem;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, #ff9600 0%, #ff4b4b 100%);
    color: white;
    border-radius: var(--radius-md);
    text-align: center;
    font-size: 1.1rem;
    box-shadow: var(--shadow-md);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
}

/* Today Info Card */
.today-info-card {
    background: white;
    border: 2px solid #1cb0f6;
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.today-info-card h1,
.today-info-card h2,
.today-info-card h3 {
    color: var(--text-dark);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.today-info-card h1:first-child {
    margin-top: 0;
}

.today-info-card ul {
    list-style: none;
    padding-left: 0;
}

.today-info-card li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-dark);
}

.today-info-card li:before {
    content: "✓";
    position: absolute;
    left: 0;
    font-weight: bold;
    color: var(--primary-color);
}

.today-info-card strong {
    background: rgba(28, 176, 246, 0.1);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    color: var(--primary-color);
}

.today-info-card code {
    background: var(--bg-light);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    color: var(--text-dark);
}

.today-info-card p {
    color: var(--text-dark);
}