/* Import google fonts */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700;900&family=Outfit:wght@300;400;500;600;700;800&display=swap');

:root {
    /* Color Palette: Deep Violet & Amber Gold */
    --bg-dark-base: #0a0616;
    --bg-dark-surface: #120b24;
    --bg-dark-card: rgba(22, 14, 42, 0.6);
    --bg-glass-border: rgba(212, 175, 55, 0.15);
    --bg-glass-border-hover: rgba(212, 175, 55, 0.4);
    
    --color-primary: #d4af37; /* Amber Gold */
    --color-primary-rgb: 212, 175, 55;
    --color-secondary: #f3a152; /* Orange-Amber */
    --color-accent: #e056fd; /* Neon Purple */
    
    --text-main: #f8f9fa; /* Pearl White */
    --text-muted: #c5c2d9; /* Lavender Gray */
    --text-dark: #0a0616;
    
    --font-heading: 'Outfit', 'Noto Sans SC', sans-serif;
    --font-body: 'Noto Sans SC', sans-serif;
    
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-dark-base);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Background glowing blobs */
body::before {
    content: '';
    position: absolute;
    top: -10%;
    left: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(142, 68, 173, 0.15) 0%, rgba(0,0,0,0) 70%);
    z-index: -1;
    pointer-events: none;
}

body::after {
    content: '';
    position: absolute;
    bottom: 20%;
    right: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.08) 0%, rgba(0,0,0,0) 70%);
    z-index: -1;
    pointer-events: none;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-main);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

a:hover {
    color: var(--color-secondary);
}

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

.text-gradient {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 50%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 2rem;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--text-dark);
    border: none;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.5);
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-primary) 100%);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid var(--bg-glass-border);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--bg-glass-border-hover);
    transform: translateY(-2px);
}

/* Glass Card */
.glass-card {
    background: var(--bg-dark-card);
    border: 1px solid var(--bg-glass-border);
    border-radius: 16px;
    padding: 2.5rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: var(--transition-smooth);
}

.glass-card:hover {
    border-color: var(--bg-glass-border-hover);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.08);
    transform: translateY(-5px);
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(10, 6, 22, 0.75);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-smooth);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--text-main);
}

.logo span {
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.8rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: 180px 0 100px;
    text-align: center;
    position: relative;
}

.hero h1 {
    font-size: 3.8rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto 2.5rem;
}

.hero-ctas {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 4rem;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.stat-item {
    padding: 1.5rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-primary);
    font-family: var(--font-heading);
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

/* Section Common */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Pricing Section */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    align-items: stretch;
}

.pricing-card {
    display: flex;
    flex-direction: column;
    position: relative;
}

.pricing-card.popular {
    border-color: var(--color-primary);
    box-shadow: 0 10px 40px rgba(212, 175, 55, 0.15);
}

.badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--text-dark);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    text-transform: uppercase;
}

.pricing-header {
    margin-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 1.5rem;
}

.plan-name {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.plan-price {
    font-family: var(--font-heading);
    margin-bottom: 0.5rem;
}

.plan-price .amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-main);
}

.plan-price .period {
    color: var(--text-muted);
    font-size: 1rem;
}

.plan-features {
    list-style: none;
    margin-bottom: 2.5rem;
    flex-grow: 1;
}

.plan-features li {
    margin-bottom: 1rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.plan-features li::before {
    content: '✓';
    color: var(--color-primary);
    font-weight: bold;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.feature-card {
    text-align: left;
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
    display: inline-block;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Reviews / Testimonials */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.review-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.review-text {
    font-style: italic;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--bg-dark-surface) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--text-main);
    border: 1px solid var(--color-primary);
}

.author-info h4 {
    font-size: 1rem;
}

.author-info p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.stars {
    color: var(--color-primary);
    margin-bottom: 0.8rem;
    letter-spacing: 2px;
}

/* FAQ Section */
.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1rem;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--bg-glass-border);
    background: var(--bg-dark-card);
    transition: var(--transition-smooth);
}

.faq-question {
    padding: 1.5rem;
    font-weight: 600;
    font-size: 1.1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    user-select: none;
    transition: var(--transition-smooth);
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--color-primary);
    transition: transform 0.3s ease;
}

.faq-item.active {
    border-color: var(--bg-glass-border-hover);
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 1.5rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding-bottom: 1.5rem;
}

/* Articles Section */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.article-card {
    display: flex;
    flex-direction: column;
    padding: 1.8rem;
}

.article-date {
    font-size: 0.8rem;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.article-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.article-excerpt {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.read-more {
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.read-more::after {
    content: '→';
    transition: transform 0.3s ease;
}

.article-card:hover .read-more::after {
    transform: translateX(5px);
}

/* Article Reading Page Layout */
.article-page {
    padding-top: 140px;
    padding-bottom: 80px;
}

.article-container {
    max-width: 800px;
    margin: 0 auto;
}

.article-meta-info {
    margin-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 1.5rem;
}

.article-meta-info h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.meta-details {
    display: flex;
    gap: 2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.article-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #e2e1ec;
}

.article-content p {
    margin-bottom: 1.5rem;
}

.article-content h2 {
    font-size: 1.8rem;
    margin-top: 2.5rem;
    margin-bottom: 1.2rem;
    color: var(--color-primary);
    border-left: 4px solid var(--color-primary);
    padding-left: 1rem;
}

.article-content h3 {
    font-size: 1.4rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.article-content ul, .article-content ol {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.article-content li {
    margin-bottom: 0.5rem;
}

.article-content a {
    text-decoration: underline;
    font-weight: 600;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    font-size: 0.95rem;
}

.article-content th, .article-content td {
    border: 1px solid rgba(255,255,255,0.1);
    padding: 0.8rem 1rem;
    text-align: left;
}

.article-content th {
    background-color: rgba(212, 175, 55, 0.1);
    color: var(--color-primary);
}

.article-content blockquote {
    border-left: 4px solid var(--color-secondary);
    padding: 1rem 1.5rem;
    margin: 2rem 0;
    background: rgba(255, 255, 255, 0.02);
    font-style: italic;
    border-radius: 0 8px 8px 0;
}

/* Related articles at bottom of article details page */
.related-articles {
    margin-top: 4rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 3rem;
}

.related-articles h3 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    text-align: center;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.related-card {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
}

.related-card h4 {
    font-size: 1.15rem;
    margin-bottom: 0.8rem;
}

/* Footer */
footer {
    background-color: #05030b;
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 4rem 0 2rem;
    color: var(--text-muted);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-about h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.footer-links h4 {
    color: var(--text-main);
    margin-bottom: 1.5rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: var(--text-muted);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    align-items: center;
}

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

/* Responsive Media Queries */
@media (max-width: 1024px) {
    .pricing-grid, .features-grid, .reviews-grid, .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero h1 {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--bg-dark-base);
        border-bottom: 1px solid rgba(255,255,255,0.1);
        padding: 2rem;
        flex-direction: column;
        gap: 1.5rem;
        z-index: 99;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero {
        padding: 140px 0 60px;
    }
    
    .hero h1 {
        font-size: 2.4rem;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .pricing-grid, .features-grid, .reviews-grid, .articles-grid, .related-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .footer-bottom-links {
        justify-content: center;
    }
}