/* Custom CSS for AirRrail Landing Page - Magical/Cosmic Theme */

:root {
    --bg-main: #060212;
    --bg-darker: #03010a;
    --bg-card: rgba(18, 10, 36, 0.6);
    --text-primary: #f3f0fa;
    --text-muted: #a59fb8;
    
    --color-cyan: #00f0ff;
    --color-purple: #bd00ff;
    --color-gold: #ffaa00;
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --glow-cyan: 0 0 20px rgba(0, 240, 255, 0.4);
    --glow-purple: 0 0 20px rgba(189, 0, 255, 0.4);
    --glow-gold: 0 0 20px rgba(255, 170, 0, 0.4);
}

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

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

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

/* Magical Background - Dynamic radial gradients and particle overlay container */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 10% 20%, rgba(26, 12, 60, 0.85) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(61, 9, 78, 0.7) 0%, transparent 50%),
        linear-gradient(135deg, rgba(6, 2, 18, 0.9) 0%, rgba(3, 1, 10, 0.95) 100%),
        url('https://images.unsplash.com/photo-1506703719100-a0f3a48c0f86?auto=format&fit=crop&q=80&w=1920');
    background-size: cover;
    background-position: center;
    z-index: -2;
}

/* Star field placeholder in case canvas is loading */
.stars-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle at 30% 10%, rgba(255, 255, 255, 0.15) 1px, transparent 1px),
                      radial-gradient(circle at 70% 40%, rgba(255, 255, 255, 0.12) 1.5px, transparent 1.5px),
                      radial-gradient(circle at 50% 80%, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 300px 300px;
    opacity: 0.5;
    z-index: -1;
    pointer-events: none;
}

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

/* Header */
.header {
    background: rgba(6, 2, 18, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.logo-icon {
    font-size: 1.8rem;
    filter: drop-shadow(0 0 10px rgba(0, 240, 255, 0.5));
}

.logo-text {
    background: linear-gradient(135deg, var(--color-cyan), var(--color-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

.nav a:hover, .nav a.active {
    color: var(--text-primary);
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
}

/* Buttons and Glowing Effects */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    font-family: var(--font-heading);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, #00f0ff, #7000ff);
    color: #fff;
    box-shadow: var(--glow-cyan);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 45%,
        rgba(255, 255, 255, 0.6) 50%,
        transparent 55%
    );
    transform: rotate(45deg);
    transition: none;
    animation: btnShine 3s infinite linear;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-cyan);
    color: var(--color-cyan);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.1);
}

.btn-outline:hover {
    background: var(--color-cyan);
    color: var(--bg-darker);
    box-shadow: var(--glow-cyan);
}

/* Sweeping light animation for buttons (亮下亮下的) */
@keyframes btnShine {
    0% {
        transform: translate(-100%, -100%) rotate(45deg);
    }
    30% {
        transform: translate(100%, 100%) rotate(45deg);
    }
    100% {
        transform: translate(100%, 100%) rotate(45deg);
    }
}

/* Hero Section */
.hero {
    padding: 8rem 0 5rem 0;
    text-align: center;
    position: relative;
}

.hero-tag {
    display: inline-block;
    padding: 0.4rem 1.2rem;
    border-radius: 30px;
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid rgba(0, 240, 255, 0.3);
    color: var(--color-cyan);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2rem;
    text-shadow: 0 0 10px rgba(0, 240, 255, 0.2);
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 3.8rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-cyan) 30%, #a200ff 70%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 2.5rem auto;
}

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

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.feature-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    text-align: left;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(0, 240, 255, 0.2);
    box-shadow: 0 10px 30px rgba(0, 240, 255, 0.05);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    margin-bottom: 0.8rem;
}

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

/* Pricing Section - Row Layout with Different Styles */
.pricing-section {
    padding: 5rem 0;
    text-align: center;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-desc {
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 3.5rem auto;
}

/* Pricing Row */
.pricing-row {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 2rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

/* Base Pricing Card with Glassmorphism */
.price-card {
    flex: 1;
    min-width: 320px;
    max-width: 380px;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 24px;
    padding: 3rem 2rem;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Style 1: Cyan Starter Style */
.price-card.style-starter {
    border: 1px solid rgba(0, 240, 255, 0.15);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.price-card.style-starter:hover {
    transform: translateY(-8px);
    border-color: var(--color-cyan);
    box-shadow: var(--glow-cyan);
}

.price-card.style-starter .card-badge {
    background: rgba(0, 240, 255, 0.1);
    color: var(--color-cyan);
    border: 1px solid rgba(0, 240, 255, 0.3);
}

.price-card.style-starter .btn-subscribe {
    background: transparent;
    border: 2px solid var(--color-cyan);
    color: var(--color-cyan);
}

.price-card.style-starter .btn-subscribe:hover {
    background: var(--color-cyan);
    color: var(--bg-darker);
    box-shadow: var(--glow-cyan);
}

/* Style 2: Gold Premium style (Pulsing glowing card, best choice) */
.price-card.style-premium {
    border: 2px solid rgba(255, 170, 0, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3), 0 0 15px rgba(255, 170, 0, 0.1);
    background: linear-gradient(180deg, rgba(32, 18, 5, 0.7) 0%, rgba(18, 10, 36, 0.7) 100%);
    transform: scale(1.03);
    animation: goldPulse 3s infinite alternate;
}

.price-card.style-premium:hover {
    transform: translateY(-8px) scale(1.05);
    border-color: var(--color-gold);
    box-shadow: var(--glow-gold), 0 10px 30px rgba(0, 0, 0, 0.4);
}

.price-card.style-premium .card-badge {
    background: var(--color-gold);
    color: #120600;
    font-weight: 700;
    box-shadow: 0 0 10px rgba(255, 170, 0, 0.5);
}

.price-card.style-premium .btn-subscribe {
    background: linear-gradient(135deg, var(--color-gold), #ff5500);
    color: #fff;
    font-weight: 700;
    box-shadow: var(--glow-gold);
}

.price-card.style-premium .btn-subscribe::before {
    animation: btnShine 2s infinite linear;
}

@keyframes goldPulse {
    0% {
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3), 0 0 10px rgba(255, 170, 0, 0.1);
        border-color: rgba(255, 170, 0, 0.3);
    }
    100% {
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 25px rgba(255, 170, 0, 0.25);
        border-color: rgba(255, 170, 0, 0.6);
    }
}

/* Style 3: Purple Ultimate Style */
.price-card.style-ultimate {
    border: 1px solid rgba(189, 0, 255, 0.2);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.price-card.style-ultimate:hover {
    transform: translateY(-8px);
    border-color: var(--color-purple);
    box-shadow: var(--glow-purple);
}

.price-card.style-ultimate .card-badge {
    background: rgba(189, 0, 255, 0.1);
    color: #e38cff;
    border: 1px solid rgba(189, 0, 255, 0.3);
}

.price-card.style-ultimate .btn-subscribe {
    background: linear-gradient(135deg, var(--color-purple), #7000ff);
    color: #fff;
    box-shadow: var(--glow-purple);
}

/* Card Badge */
.card-badge {
    align-self: center;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
}

.price-header h3 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    margin-bottom: 0.5rem;
}

.price-num {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    margin: 1rem 0;
}

.price-num span {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 400;
}

/* Pricing features list */
.price-features {
    list-style: none;
    margin: 2rem 0;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1.5rem;
}

.price-features li {
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.price-features li::before {
    content: '✦';
    color: var(--color-cyan);
    font-weight: bold;
}

.price-card.style-premium .price-features li::before {
    color: var(--color-gold);
}

.price-card.style-ultimate .price-features li::before {
    color: var(--color-purple);
}

.btn-subscribe {
    width: 100%;
    margin-top: 1rem;
}

/* Articles Section */
.articles-section {
    padding: 5rem 0;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
}

.article-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.3s ease;
}

.article-card:hover {
    border-color: rgba(189, 0, 255, 0.3);
    box-shadow: 0 10px 30px rgba(189, 0, 255, 0.05);
    transform: translateY(-3px);
}

.article-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin-bottom: 0.8rem;
    line-height: 1.4;
}

.article-card h3 a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.article-card h3 a:hover {
    color: var(--color-cyan);
}

.article-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1rem;
}

.read-more {
    color: var(--color-cyan);
    text-decoration: none;
    font-weight: 600;
}

.read-more:hover {
    text-decoration: underline;
}

/* User Reviews (Testimonials) */
.reviews-section {
    padding: 5rem 0;
    background: rgba(3, 1, 10, 0.4);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.review-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.03);
    border-radius: 20px;
    padding: 2rem;
    position: relative;
}

.stars {
    color: var(--color-gold);
    margin-bottom: 1rem;
}

.review-text {
    font-style: italic;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.reviewer {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.reviewer-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-cyan), var(--color-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: #fff;
    font-size: 0.9rem;
}

.reviewer-info h4 {
    font-size: 0.95rem;
    font-weight: 600;
}

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

/* FAQ Accordion */
.faq-section {
    padding: 5rem 0;
}

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

.faq-item {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-question {
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0, 1, 0, 1);
    color: var(--text-muted);
    font-size: 0.95rem;
}

.faq-item.active {
    border-color: rgba(0, 240, 255, 0.2);
}

.faq-item.active .faq-answer {
    padding: 0 1.5rem 1.5rem 1.5rem;
    max-height: 300px;
}

.faq-toggle {
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(180deg);
}

/* Article Page Layout Details */
.article-page {
    line-height: 1.8;
}

.breadcrumb {
    margin-bottom: 2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.breadcrumb a {
    color: var(--text-muted);
    text-decoration: none;
}

.breadcrumb a:hover {
    color: var(--color-cyan);
}

.main-content {
    display: grid;
    grid-template-columns: 8fr 4fr;
    gap: 3rem;
    padding: 4rem 2rem;
}

.article-body {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 3rem;
    border-radius: 24px;
}

.article-body h1 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.article-meta {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 2.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 1rem;
}

.content-section {
    margin-bottom: 2.5rem;
}

.content-section p {
    margin-bottom: 1.2rem;
    color: #e1dde6;
}

.content-section h2 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    margin: 2rem 0 1rem 0;
    color: #fff;
    border-left: 4px solid var(--color-cyan);
    padding-left: 0.8rem;
}

.content-section h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    margin: 1.5rem 0 0.8rem 0;
}

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

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

.content-section a {
    color: var(--color-cyan);
    text-decoration: none;
    font-weight: 500;
}

.content-section a:hover {
    text-decoration: underline;
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.sidebar-widget {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 20px;
}

.sidebar-widget h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    margin-bottom: 1.2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 0.6rem;
}

.widget-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.widget-list li a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.widget-list li a:hover {
    color: var(--color-cyan);
}

.promo-widget {
    background: linear-gradient(135deg, rgba(189, 0, 255, 0.15) 0%, rgba(0, 240, 255, 0.1) 100%), var(--bg-card);
    border: 1px solid rgba(189, 0, 255, 0.2);
}

.promo-widget p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.promo-widget .btn {
    width: 100%;
}

/* Footer & PBN Links (Dedicated Friendship Links Area) */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 3rem 0;
    margin-top: 6rem;
}

.footer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    text-align: center;
}

.footer-info p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.friendship-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 1rem;
    width: 100%;
    max-width: 600px;
}

.friendship-links-title {
    font-weight: 600;
    color: var(--text-primary);
}

.pbn-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.pbn-link:hover {
    color: var(--color-cyan);
    text-shadow: 0 0 8px rgba(0, 240, 255, 0.5);
}

/* Interactive Canvas Trail Style */
#trail-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
}

/* Mobile Responsiveness */
@media (max-width: 1024px) {
    .main-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }
    
    .header-container {
        height: 70px;
    }
    
    .nav {
        gap: 1rem;
    }
    
    .hero {
        padding: 5rem 0 3rem 0;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .pricing-row {
        flex-direction: column;
        align-items: center;
    }
    
    .price-card {
        width: 100%;
        max-width: 400px;
    }
    
    .price-card.style-premium {
        transform: scale(1);
    }
    
    .price-card.style-premium:hover {
        transform: translateY(-8px);
    }
    
    .footer-container {
        flex-direction: column;
        text-align: center;
    }
    
    .article-body {
        padding: 1.5rem;
    }
}

/* Floating Planes in background */
.planes-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}

.floating-plane {
    position: absolute;
    opacity: 0.45;
    pointer-events: none;
}

.floating-plane-1 {
    width: 120px;
    height: 80px;
    left: -150px;
    top: 20%;
    animation: floatPlane1 25s linear infinite;
    filter: drop-shadow(0 0 8px var(--color-cyan));
}

.floating-plane-2 {
    width: 90px;
    height: 60px;
    left: -150px;
    top: 60%;
    animation: floatPlane2 35s linear infinite;
    animation-delay: 5s;
    filter: drop-shadow(0 0 8px var(--color-purple));
}

.floating-plane-3 {
    width: 150px;
    height: 100px;
    left: -180px;
    top: 40%;
    animation: floatPlane3 45s linear infinite;
    animation-delay: 12s;
    filter: drop-shadow(0 0 10px var(--color-gold));
}

@keyframes floatPlane1 {
    0% {
        transform: translate(0, 0) rotate(15deg) scale(0.8);
        opacity: 0;
    }
    10% {
        opacity: 0.25;
    }
    90% {
        opacity: 0.25;
    }
    100% {
        transform: translate(calc(100vw + 200px), -150px) rotate(15deg) scale(1.2);
        opacity: 0;
    }
}

@keyframes floatPlane2 {
    0% {
        transform: translate(0, 0) rotate(5deg) scale(0.6);
        opacity: 0;
    }
    10% {
        opacity: 0.2;
    }
    90% {
        opacity: 0.2;
    }
    100% {
        transform: translate(calc(100vw + 200px), -300px) rotate(5deg) scale(1);
        opacity: 0;
    }
}

@keyframes floatPlane3 {
    0% {
        transform: translate(0, 0) rotate(25deg) scale(0.7);
        opacity: 0;
    }
    15% {
        opacity: 0.15;
    }
    85% {
        opacity: 0.15;
    }
    100% {
        transform: translate(calc(100vw + 200px), -50px) rotate(25deg) scale(1.3);
        opacity: 0;
    }
}

/* Card Banners */
.article-banner {
    width: 100%;
    height: 140px;
    border-radius: 12px;
    margin-bottom: 1.25rem;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.article-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.85;
    transition: transform 0.5s ease;
}

.article-card:hover .article-banner::before {
    transform: scale(1.1);
}

.article-banner svg {
    width: 50px;
    height: 50px;
    z-index: 1;
    filter: drop-shadow(0 0 12px rgba(255, 255, 255, 0.4));
}

/* 6 distinct banners */
.banner-1::before { background: linear-gradient(135deg, #0b1e3a 0%, #00f0ff 100%); }
.banner-2::before { background: linear-gradient(135deg, #1f0b3a 0%, #bd00ff 100%); }
.banner-3::before { background: linear-gradient(135deg, #3a1e0b 0%, #ffaa00 100%); }
.banner-4::before { background: linear-gradient(135deg, #0b3a2e 0%, #00ff88 100%); }
.banner-5::before { background: linear-gradient(135deg, #0b343a 0%, #0099ff 100%); }
.banner-6::before { background: linear-gradient(135deg, #3a0b27 0%, #ff0077 100%); }

/* Marquee Slider */
.articles-slider-container {
    width: 100%;
    overflow: hidden;
    padding: 2rem 0;
    position: relative;
}

/* Gradients overlay to fade edges of slider */
.articles-slider-container::before,
.articles-slider-container::after {
    content: '';
    position: absolute;
    top: 0;
    width: 120px;
    height: 100%;
    z-index: 5;
    pointer-events: none;
}

.articles-slider-container::before {
    left: 0;
    background: linear-gradient(to right, var(--bg-main) 0%, transparent 100%);
}

.articles-slider-container::after {
    right: 0;
    background: linear-gradient(to left, var(--bg-main) 0%, transparent 100%);
}

.article-slider-track {
    display: flex;
    width: max-content;
    gap: 2rem;
    animation: marqueeScroll 45s linear infinite;
}

.article-slider-track:hover {
    animation-play-state: paused;
}

.article-slider-track .article-card {
    width: 360px;
    flex-shrink: 0;
}

@keyframes marqueeScroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* Hero Background Plane Style */
.hero {
    position: relative;
    overflow: hidden;
}

.hero-bg-plane {
    position: absolute;
    top: 5%;
    left: 50%;
    transform: translateX(-50%) rotate(12deg);
    width: 85%;
    max-width: 900px;
    height: auto;
    opacity: 0.22;
    pointer-events: none;
    z-index: 0;
    filter: drop-shadow(0 0 25px rgba(0, 240, 255, 0.35));
    animation: floatHeroPlane 12s ease-in-out infinite alternate;
}

.hero .container {
    position: relative;
    z-index: 2;
}

@keyframes floatHeroPlane {
    0% {
        transform: translateX(-50%) translateY(0) rotate(10deg);
        filter: drop-shadow(0 0 25px rgba(0, 240, 255, 0.35));
    }
    100% {
        transform: translateX(-50%) translateY(-25px) rotate(14deg);
        filter: drop-shadow(0 0 45px rgba(189, 0, 255, 0.45));
    }
}