/* Global variables for light/dark mode */
:root {
    /* Light mode colors */
    --bg-primary-light: #f8f9fa;
    --bg-secondary-light: #ffffff;
    --text-primary-light: #333333;
    --text-secondary-light: #666666;
    --accent-primary-light: #007bff;
    --accent-secondary-light: #0056b3;
    --card-bg-light: #ffffff;
    --card-border-light: #e9ecef;
    --header-bg-light: #ffffff;
    --header-text-light: #333333;
    
    /* Dark mode colors */
    --bg-primary-dark: #121212;
    --bg-secondary-dark: #1e1e1e;
    --text-primary-dark: #f1f1f1;
    --text-secondary-dark: #cccccc;
    --accent-primary-dark: #007bff;
    --accent-secondary-dark: #0069d9;
    --card-bg-dark: #1e1e1e;
    --card-border-dark: #333333;
    --header-bg-dark: #1a1a1a;
    --header-text-dark: #ffffff;
    
    /* Default to light mode */
    --bg-primary: var(--bg-primary-light);
    --bg-secondary: var(--bg-secondary-light);
    --text-primary: var(--text-primary-light);
    --text-secondary: var(--text-secondary-light);
    --accent-primary: var(--accent-primary-light);
    --accent-secondary: var(--accent-secondary-light);
    --card-bg: var(--card-bg-light);
    --card-border: var(--card-border-light);
    --header-bg: var(--header-bg-light);
    --header-text: var(--header-text-light);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Dark mode overrides */
body[data-theme="dark"] {
    --bg-primary: var(--bg-primary-dark);
    --bg-secondary: var(--bg-secondary-dark);
    --text-primary: var(--text-primary-dark);
    --text-secondary: var(--text-secondary-dark);
    --accent-primary: var(--accent-primary-dark);
    --accent-secondary: var(--accent-secondary-dark);
    --card-bg: var(--card-bg-dark);
    --card-border: var(--card-border-dark);
    --header-bg: var(--header-bg-dark);
    --header-text: var(--header-text-dark);
}

/* Header */
.site-header {
    background: var(--header-bg);
    padding: 1.25rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: center;
    border-bottom: 1px solid var(--card-border);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.75rem;
    font-weight: 700;
}

.logo h1 a {
    color: var(--accent-primary);
    text-decoration: none;
}

.main-nav {
    display: flex;
    gap: 1.5rem;
}

.main-nav a {
    color: var(--text-primary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background 0.3s, color 0.3s;
    font-weight: 500;
}

.main-nav a:hover {
    background: rgba(0,0,0,0.05);
    color: var(--accent-primary);
}

body[data-theme="dark"] .main-nav a:hover {
    background: rgba(255,255,255,0.05);
}

.main-nav a.active {
    background: var(--accent-primary);
    color: white;
}

.theme-toggle button {
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.theme-toggle button:hover {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

/* Main Content */
.main-content {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
    flex-grow: 1;
}

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: 4rem;
    padding: 4rem 2rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--card-border);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-primary), #00c3ff);
}

.hero h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    font-weight: 700;
}

.hero p {
    font-size: 1.3rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Content Sections */
.content-section {
    margin-bottom: 4rem;
}

.tutorial-section h3, 
.tools-section h3, 
.examples-section h3, 
.cta-section h3 {
    font-size: 2.25rem;
    margin-bottom: 2.5rem;
    text-align: center;
    color: var(--text-primary);
    font-weight: 700;
    position: relative;
    padding-bottom: 1rem;
}

.tutorial-section h3::after, 
.tools-section h3::after, 
.examples-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: var(--accent-primary);
    border-radius: 3px;
}

.tutorial-content {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-secondary);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    border: 1px solid var(--card-border);
}

.feature-list {
    list-style-type: none;
    padding: 0;
    margin: 1.5rem 0;
}

.feature-list li {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
    font-size: 1.1rem;
}

.feature-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: bold;
}

/* Tool Cards and Example Cards */
.tools-grid, .examples-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.tool-card, .example-card {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    text-align: center;
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 320px;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--card-border);
}

.tool-card:hover, .example-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    border-color: var(--accent-primary);
}

.tool-card h4, .example-card h4 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: var(--accent-primary);
    font-weight: 600;
}

.tool-card ul {
    list-style-type: none;
    padding: 0;
    margin: 0 0 2rem 0;
    text-align: left;
    flex-grow: 1;
}

.tool-card li {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.tool-card li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: bold;
}

.tool-card p, .example-card p {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    text-align: left;
    font-size: 1.1rem;
    line-height: 1.6;
}

.card-example {
    margin-top: 1.5rem;
    background: rgba(0,0,0,0.05);
    padding: 1rem;
    border-radius: 6px;
    text-align: left;
}

body[data-theme="dark"] .card-example {
    background: rgba(255,255,255,0.05);
}

.example-prompt {
    font-family: monospace;
    font-size: 0.9rem;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
}

.card-example pre {
    background: #2d2d2d;
    color: #f1f1f1;
    padding: 1rem;
    border-radius: 4px;
    overflow-x: auto;
    margin-top: 0.5rem;
}

/* Tip Box */
.tip-box {
    background: rgba(0, 123, 255, 0.05);
    border-left: 4px solid var(--accent-primary);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 4px;
}

.tip-box h4 {
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
}

/* Link Highlight */
.link-highlight {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.link-highlight:hover {
    color: var(--accent-secondary);
    text-decoration: underline;
}

/* CTA Section */
.cta-section {
    text-align: center;
    padding: 4rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    margin: 4rem auto;
    max-width: 900px;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--card-border);
}

.cta-section::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #28a745, #12d8a0);
}

.cta-section p {
    margin-bottom: 2rem;
    font-size: 1.3rem;
    color: var(--text-secondary);
}

/* Buttons */
.button {
    display: inline-block;
    padding: 0.75rem 2rem;
    background: var(--accent-primary);
    color: white;
    text-decoration: none;
    border-radius: 4px;
    transition: background 0.3s, transform 0.2s;
    font-weight: 600;
    border: none;
    font-size: 1rem;
    cursor: pointer;
    align-self: center;
    margin-top: auto;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.button:hover {
    background: var(--accent-secondary);
    transform: scale(1.05);
}

.button.primary {
    background: #28a745;
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.button.primary:hover {
    background: #218838;
}

/* Footer */
.site-footer {
    background: var(--header-bg);
    color: var(--text-primary);
    padding: 3rem 2rem;
    margin-top: 6rem;
    text-align: center;
    border-top: 1px solid var(--card-border);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Code Examples */
.code-example {
    margin-bottom: 2rem;
}

.code-example h3 {
    margin-bottom: 1rem;
    color: var(--accent-primary);
    text-align: center;
}

.code-example pre {
    background: #1e1e1e;
    color: #f1f1f1;
    padding: 1.5rem;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 1rem;
    line-height: 1.5;
    font-size: 0.95rem;
}

.code-example code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

.code-example code .property {
    color: #9cdcfe;
}

.code-example code .string {
    color: #ce9178;
}

.code-example code .comment {
    color: #6a9955;
}

.code-example p {
    text-align: center;
}

/* Responsive Design */
@media (max-width: 992px) {
    .tools-grid, .examples-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .main-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
}

@media (max-width: 768px) {
    .tools-grid, .examples-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero h2 {
        font-size: 2.25rem;
    }
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
}

@media (max-width: 992px) {
    .mobile-nav-open .main-nav {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--header-bg);
        padding: 1rem;
        border-bottom: 1px solid var(--card-border);
        box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    }
}

/* Theme transition */
.theme-transition {
    transition: background-color 0.3s ease, 
                color 0.3s ease,
                border-color 0.3s ease,
                box-shadow 0.3s ease;
}

.theme-transition * {
    transition: background-color 0.3s ease, 
                color 0.3s ease,
                border-color 0.3s ease,
                box-shadow 0.3s ease;
}

/* Copy notification */
.copy-notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--accent-primary);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}

.copy-notification.fade-out {
    animation: fadeOut 0.3s ease forwards;
}

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

@keyframes fadeOut {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(20px);
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

/* Models Table */
.models-table {
    width: 100%;
    overflow-x: auto;
    margin: 2rem 0;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}

.models-table table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid var(--card-border);
    background: var(--card-bg);
}

.models-table th {
    background: var(--accent-primary);
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

.models-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--card-border);
    color: var(--text-primary);
}

.models-table tr:nth-child(even) {
    background: rgba(0,0,0,0.03);
}

body[data-theme="dark"] .models-table tr:nth-child(even) {
    background: rgba(255,255,255,0.03);
}

.models-table tr:hover {
    background: rgba(0, 123, 255, 0.05);
}

body[data-theme="dark"] .models-table tr:hover {
    background: rgba(0, 123, 255, 0.1);
}

.model-note {
    font-style: italic;
    text-align: center;
    margin-top: 1rem;
    color: var(--text-secondary);
}

.model-category {
    background: rgba(0, 123, 255, 0.1);
    font-weight: 500;
}

body[data-theme="dark"] .model-category {
    background: rgba(0, 123, 255, 0.2);
}

.model-category td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--card-border);
}

.model-category strong {
    color: var(--accent-primary);
}