:root {
    --primary: #6366F1;
    --primary-dark: #4F46E5;
    --primary-light: #818CF8;
    --secondary: #F472B6;
    --accent: #34D399;
    --warning: #FBBF24;
    --error: #EF4444;
    --success: #10B981;
    --gray-50: #f8f9fa;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-600: #4b5563;
    --gray-800: #1f2937;
    --gradient-primary: linear-gradient(135deg, #6366F1, #818CF8);
    --gradient-secondary: linear-gradient(135deg, #F472B6, #FB7185);
    --gradient-accent: linear-gradient(135deg, #34D399, #6EE7B7);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--gray-50);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navbar Styles */
.navbar {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(229, 231, 235, 0.5);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-800);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo i {
    color: var(--primary);
    font-size: 1.75rem;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--gray-600);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

/* Hero Section */
.hero {
    padding: 8rem 0 6rem;
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero .container {
    position: relative;
    z-index: 1;
    color: white;
    text-align: center;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    background: linear-gradient(to right, #fff, rgba(255,255,255,0.8));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.5rem;
    max-width: 700px;
    margin: 0 auto 3rem;
    opacity: 0.9;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

/* Button Styles */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: 0.75rem;
    font-weight: 500;
    font-size: 1.1rem;
    text-decoration: none;
    transition: all 0.3s;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

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

.cta-button.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px -3px rgba(0, 0, 0, 0.2);
}

.cta-button.secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    backdrop-filter: blur(10px);
}

.cta-button.secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Features Section */
.features {
    padding: 8rem 0;
    background: white;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
    color: var(--gray-800);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 1rem;
}

.feature-card {
    background: white;
    padding: 2.5rem;
    border-radius: 1.5rem;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
    border: 1px solid var(--gray-100);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transition: transform 0.3s;
    transform: scaleX(0);
    transform-origin: left;
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-card.html-preview::before {
    background: var(--gradient-primary);
}

.feature-card.js-preview::before {
    background: var(--gradient-secondary);
}

.feature-card.code-execution::before {
    background: var(--gradient-accent);
}

.feature-card.mermaid::before {
    background: linear-gradient(135deg, #60A5FA, #3B82F6);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 1rem;
    position: relative;
    z-index: 1;
}

.feature-card.html-preview .feature-icon {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
}

.feature-card.js-preview .feature-icon {
    background: rgba(244, 114, 182, 0.1);
    color: var(--secondary);
}

.feature-card.code-execution .feature-icon {
    background: rgba(52, 211, 153, 0.1);
    color: var(--accent);
}

.feature-card.mermaid .feature-icon {
    background: rgba(96, 165, 250, 0.1);
    color: #3B82F6;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 35px -10px rgba(0, 0, 0, 0.1);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--gray-800);
}

.feature-card p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* API Documentation Section */
.api-docs {
    padding: 8rem 0;
    background: var(--gray-50);
}

.api-docs h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
    color: var(--gray-800);
}

.api-section {
    background: white;
    padding: 2.5rem;
    border-radius: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.api-section h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.endpoint {
    background: var(--gray-800);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 0.75rem;
    font-family: 'JetBrains Mono', monospace;
    margin: 1rem 0;
}

/* Thêm styles mới cho try-api section */
.try-api {
    text-align: center;
    margin-top: 3rem;
}

.try-api .cta-button.secondary {
    background: var(--primary);
    color: white;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.try-api .cta-button.secondary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 15px -3px rgba(99, 102, 241, 0.3);
}

.try-api .cta-button.secondary i {
    font-size: 0.9em;
    transition: transform 0.2s ease;
}

.try-api .cta-button.secondary:hover i {
    transform: translateX(3px);
}

/* Extension Section */
.extension {
    padding: 8rem 0;
    background: white;
}

.extension h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
}

.extension-features {
    max-width: 800px;
    margin: 0 auto;
    background: var(--gray-50);
    padding: 3rem;
    border-radius: 1.5rem;
    text-align: center;
}

.extension-features ul {
    list-style: none;
    margin-bottom: 2.5rem;
}

.extension-features ul li {
    padding: 1rem 0;
    font-size: 1.2rem;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.extension-features ul li i {
    color: var(--primary);
    font-size: 1.4rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
    
    .nav-links {
        display: none;
    }
} 

/* Footer Styles */
.footer {
    background: var(--gray-50);
    border-top: 1px solid var(--gray-200);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-logo {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-800);
}

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

.footer-links a {
    color: var(--gray-600);
    text-decoration: none;
    transition: color 0.2s;
}

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

.footer-bottom {
    text-align: center;
    color: var(--gray-600);
    font-size: 0.875rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-200);
}

@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
} 

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

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: var(--gray-600);
}

.feature-list li i {
    color: var(--success);
    font-size: 1rem;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 35px -10px rgba(0, 0, 0, 0.1);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--gray-800);
}

.feature-card p {
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 1rem;
} 

/* Showcase Section */
.showcase-section {
    padding: 8rem 0;
    background: linear-gradient(135deg, var(--gray-50) 0%, #fff 100%);
    position: relative;
}

.showcase-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.showcase-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: center;
}

.showcase-content {
    padding-right: 2rem;
}

.showcase-steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.step {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.5rem;
    background: white;
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--gray-100);
    transition: all 0.3s ease;
}

.step:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 20px -6px rgba(99, 102, 241, 0.2);
}

.step-number {
    width: 2rem;
    height: 2rem;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.step h3 {
    font-size: 1.25rem;
    color: var(--gray-800);
    font-weight: 600;
}

.step p {
    color: var(--gray-600);
    line-height: 1.6;
}

.showcase-image {
    position: relative;
}

.demo-image {
    width: 100%;
    height: auto;
    border-radius: 1rem;
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.1);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .showcase-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .showcase-content {
        padding-right: 0;
    }

    .showcase-steps {
        max-width: 600px;
        margin: 0 auto;
    }

    .showcase-image {
        order: -1;
        max-width: 800px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .showcase-section {
        padding: 4rem 0;
    }

    .showcase-section h2 {
        font-size: 2rem;
        margin-bottom: 3rem;
    }

    .step {
        padding: 1.25rem;
    }

    .step h3 {
        font-size: 1.1rem;
    }
} 

/* Support button in header */
.nav-links .support-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, #FFD700, #FFA500);
    color: #000;
    font-weight: 600;
    text-decoration: none;
    border-radius: 0.5rem;
    transition: all 0.2s;
}

.nav-links .support-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.15);
}

.nav-links .support-emoji {
    font-size: 1.125rem;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
}