* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4CAF50;
    --secondary-color: #2196F3;
    --accent-color: #FF9800;
    --danger-color: #F44336;
    --warning-color: #FF9800;
    --success-color: #4CAF50;
    --dark-bg: #1a1a1a;
    --light-bg: #f8f9fa;
    --card-bg: #ffffff;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-light: #999999;
    --border-color: #e0e0e0;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.15);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--primary-color);
}

.nav-logo i {
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    margin-top: 70px;
    padding: 5rem 2rem;
    text-align: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.1) 0%, transparent 100%);
    pointer-events: none;
}

.hero-content {
    flex: 1;
    max-width: 500px;
}

.hero-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: float 3s ease-in-out infinite;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, #fff 0%, #f0f0f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-badges {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.badge {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.floating-panel {
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-hover);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: float 4s ease-in-out infinite;
    color: var(--text-primary);
    min-width: 250px;
}

.panel-header {
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-color);
    text-align: center;
}

.control-group {
    margin-bottom: 1rem;
}

.control-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.control-group input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    transition: var(--transition);
}

.control-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

/* Main Content */
.main-content {
    background: var(--light-bg);
}

.section {
    padding: 5rem 2rem;
}

.alt-bg {
    background: white;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(45deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.content-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

.content-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.card-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.content-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* Step by Step */
.step-by-step {
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    align-items: flex-start;
}

.step-number {
    background: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-content h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* Code Examples */
.code-example {
    background: var(--dark-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    margin: 1rem 0;
    box-shadow: var(--shadow);
}

.code-header {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    font-weight: 500;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-example pre {
    margin: 0;
    padding: 1.5rem;
    overflow-x: auto;
}

.code-example code {
    color: #e6e6e6;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Warning and Tip Boxes */
.warning-box, .tip-box {
    background: var(--card-bg);
    border-left: 4px solid var(--warning-color);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin: 2rem 0;
    display: flex;
    gap: 1rem;
    box-shadow: var(--shadow);
}

.tip-box {
    border-left-color: var(--success-color);
}

.warning-box i, .tip-box i {
    color: var(--warning-color);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.tip-box i {
    color: var(--success-color);
}

/* Method Cards */
.method-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.method-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.method-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.method-card h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.steps-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.mini-step {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.mini-step-number {
    background: var(--secondary-color);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
    flex-shrink: 0;
}

/* Troubleshooting */
.troubleshooting-grid {
    display: grid;
    gap: 2rem;
}

.trouble-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.trouble-card:hover {
    box-shadow: var(--shadow-hover);
}

.trouble-header {
    background: linear-gradient(45deg, var(--danger-color), #ff6b6b);
    color: white;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.trouble-header i {
    font-size: 1.5rem;
}

.trouble-content {
    padding: 2rem;
}

.trouble-content h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.trouble-content ul {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.trouble-content li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.solution-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.solution {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.solution-number {
    background: var(--success-color);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
    flex-shrink: 0;
}

/* Best Practices */
.best-practices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.practice-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.practice-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.practice-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.practice-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* Footer */
.footer {
    background: var(--dark-bg);
    color: white;
    text-align: center;
    padding: 2rem;
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* API Reference Styles */
.api-section {
    margin-bottom: 3rem;
}

.api-section-title {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: var(--text-primary);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

.api-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.api-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.api-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.api-card h4 {
    color: var(--primary-color);
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 1.1rem;
    margin-bottom: 1rem;
    padding: 0.5rem 1rem;
    background: rgba(76, 175, 80, 0.1);
    border-radius: 6px;
    border-left: 4px solid var(--primary-color);
}

/* Advanced Features Styles */
.feature-sections {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.feature-section {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feature-title::before {
    content: '';
    width: 4px;
    height: 1.5rem;
    background: var(--secondary-color);
    border-radius: 2px;
}

/* Examples Grid */
.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 2rem;
}

.example-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.example-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.example-card h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.3rem;
}

.example-card i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

/* Performance Cards */
.performance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.perf-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.perf-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.perf-card i {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.perf-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* Shortcuts Styles */
.shortcuts-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: start;
}

.shortcuts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.shortcut-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.shortcut-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.shortcut-key {
    background: var(--dark-bg);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: inline-block;
    min-width: 60px;
}

.shortcut-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.tips-section {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    height: fit-content;
}

.tips-section h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    text-align: center;
}

.tips-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.tip-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    padding: 1rem;
    background: rgba(76, 175, 80, 0.05);
    border-radius: 8px;
    border-left: 3px solid var(--success-color);
}

.tip-item i {
    color: var(--success-color);
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 0.1rem;
}

.tip-item strong {
    color: var(--text-primary);
}

/* Responsive Updates */
@media (max-width: 1024px) {
    .api-grid {
        grid-template-columns: 1fr;
    }
    
    .examples-grid {
        grid-template-columns: 1fr;
    }
    
    .shortcuts-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .performance-grid {
        grid-template-columns: 1fr;
    }
    
    .shortcuts-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    
    .feature-sections {
        gap: 2rem;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .step {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .method-cards {
        grid-template-columns: 1fr;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .best-practices-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

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