/* 
   Hobby Hub Design System
   Premium, Vibrant, Glassmorphic
*/

:root {
    /* Colors */
    --clr-bg: #0b0c10;
    --clr-bg-alt: #13151c;
    --clr-text: #ffffff;
    --clr-text-muted: #a0a5b8;
    
    --clr-primary: #ff3366;
    --clr-secondary: #00e5ff;
    --clr-tertiary: #ffaa00;
    
    --gradient-primary: linear-gradient(135deg, var(--clr-primary), var(--clr-tertiary));
    --gradient-glow: linear-gradient(135deg, rgba(255, 51, 102, 0.2), rgba(0, 229, 255, 0.2));
    
    /* Typography */
    --font-sans: 'Outfit', sans-serif;
    --font-serif: 'Playfair Display', serif;
    
    /* Layout */
    --container-width: 1200px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-pill: 100px;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

img {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* Typography Enhancements */
h1, h2, h3, h4 {
    line-height: 1.1;
    font-weight: 700;
}

span {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

h2 span, h1 span {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 600;
}

p {
    color: var(--clr-text-muted);
}

/* Reusable UI Components */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius-pill);
    border: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 8px 24px rgba(255, 51, 102, 0.3);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, var(--clr-tertiary), var(--clr-primary));
    opacity: 0;
    z-index: -1;
    transition: var(--transition-smooth);
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(255, 51, 102, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

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

/* Glassmorphic Panels */
.glass-panel {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
}

/* Section Globals */
.section {
    padding: 8rem 0;
    position: relative;
    z-index: 2;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.section-desc {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Dynamic Background Elements */
.bg-texture {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI4IiBoZWlnaHQ9IjgiPgo8cmVjdCB3aWR0aD0iOCIgaGVpZ2h0PSI4IiBmaWxsPSIjZmZmIiBmaWxsLW9wYWNpdHk9IjAuMDUiLz4KPHBhdGggZD0iTTAgMEg0VjRIMHoiIGZpbGw9IiMzMzMiIGZpbGwtb3BhY2l0eT0iMC4wNSIvPgo8cGF0aCBkPSJNNCA0SDhWOEg0eiIgZmlsbD0iIzMzMyIgZmlsbC1vcGFjaXR5PSIwLjA1Ii8+Cjwvc3ZnPg==');
    pointer-events: none;
    z-index: 0;
}

.blob {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 0;
    opacity: 0.5;
    animation: float 20s infinite alternate;
}

.shape-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--clr-primary) 0%, transparent 70%);
    top: -200px;
    left: -200px;
    animation-duration: 25s;
}

.shape-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--clr-secondary) 0%, transparent 70%);
    bottom: -100px;
    right: -100px;
    animation-duration: 18s;
}

.shape-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--clr-tertiary) 0%, transparent 70%);
    top: 40%;
    left: 40%;
    animation-duration: 30s;
    opacity: 0.3;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 50px) scale(1.1); }
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 1.2rem 0;
    transition: var(--transition-smooth);
    background: rgba(11, 12, 16, 0);
}

.navbar.scrolled {
    background: rgba(11, 12, 16, 0.8);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 0.8rem 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    z-index: 101;
}

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

.nav-link {
    font-weight: 500;
    font-size: 1rem;
    position: relative;
    color: var(--clr-text-muted);
    transition: var(--transition-fast);
}

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

.nav-link:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-fast);
}

.nav-link:not(.btn):hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 101;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: white;
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    position: relative;
    z-index: 2;
}

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

.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 2rem;
    color: var(--clr-secondary);
}

.hero-title {
    font-size: clamp(3rem, 5vw, 5rem);
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
}

.hero-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.visual-card {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-lg);
    background: linear-gradient(45deg, rgba(255,51,102,0.4), rgba(0,229,255,0.4)), url('assets/hero-bg.png') center/cover no-repeat;
    border: 1px solid rgba(255,255,255,0.1);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.visual-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at center, rgba(255,255,255,0.1) 0%, transparent 60%);
}

.card-glass {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    transform: rotate(5deg);
    transition: var(--transition-smooth);
}

.visual-card:hover .card-glass {
    transform: rotate(0deg) scale(1.05);
}

.palette-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.features-list {
    list-style: none;
    margin-top: 2rem;
}

.features-list li {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--clr-text);
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.stat-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: var(--radius-md);
    text-align: center;
    transition: var(--transition-fast);
}

.stat-card h3 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--clr-primary);
}

.stat-card.glow-card {
    background: var(--gradient-glow);
    border-color: rgba(0, 229, 255, 0.2);
}

.stat-card.glow-card h3 {
    color: var(--clr-secondary);
}

.stat-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.05);
}

/* Photo Marquee Gallery */
.marquee-section {
    padding: 4rem 0;
    overflow: hidden;
    position: relative;
    background: rgba(255, 255, 255, 0.01);
}

.marquee-container {
    width: 100%;
    overflow: hidden;
    white-space: nowrap;
    position: relative;
    margin-top: 2rem;
}

.marquee-container::before, .marquee-container::after {
    content: '';
    position: absolute;
    top: 0;
    width: 150px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.marquee-container::before {
    left: 0;
    background: linear-gradient(to right, var(--clr-bg), transparent);
}

.marquee-container::after {
    right: 0;
    background: linear-gradient(to left, var(--clr-bg), transparent);
}

.marquee-track {
    display: flex;
    width: max-content;
    animation: marquee-scroll 35s linear infinite;
}

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

.marquee-content {
    display: flex;
    gap: 2rem;
    padding-right: 2rem; /* Ensures consistent spacing with next duplicate set */
}

.marquee-content img {
    height: 350px;
    width: auto;
    border-radius: var(--radius-md);
    object-fit: cover;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-smooth);
    cursor: pointer;
}

.marquee-content img:hover {
    transform: scale(1.03) translateY(-5px);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.8);
}

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

/* Courses Grid */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.course-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 2.5rem 2rem;
    border-radius: var(--radius-md);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.course-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.1);
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-smooth);
}

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

.course-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    width: 70px; height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
}

.course-card.highlight {
    background: linear-gradient(135deg, rgba(255,170,0,0.1), transparent);
    border-color: rgba(255,170,0,0.2);
}

.course-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

/* Exhibitions Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0; bottom: 0;
    left: 20px;
    width: 2px;
    background: rgba(255, 255, 255, 0.1);
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: 3rem;
}

.timeline-dot {
    position: absolute;
    left: 11px;
    top: 0;
    width: 20px;
    height: 20px;
    background: var(--clr-primary);
    border-radius: 50%;
    box-shadow: 0 0 15px var(--clr-primary);
}

.timeline-content {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: var(--radius-md);
}

.timeline-content h3 {
    margin-bottom: 0.5rem;
    color: var(--clr-secondary);
}

/* Contact */
.contact-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    padding: 0;
    overflow: hidden;
}

.contact-info {
    padding: 4rem;
    background: rgba(0, 0, 0, 0.2);
}

.contact-info p {
    margin-bottom: 2rem;
}

.detail-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    align-items: flex-start;
}

.detail-item .icon {
    font-size: 1.5rem;
}

.contact-form {
    padding: 4rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--clr-text-muted);
}

.form-group input, .form-group select, .form-group textarea {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    padding: 1rem;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-fast);
    resize: vertical;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--clr-primary);
    background: rgba(255, 255, 255, 0.08);
}

.form-group select option {
    background: var(--clr-bg);
}

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

/* Footer */
.footer {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 4rem 0 2rem;
    position: relative;
    z-index: 2;
    background: rgba(0, 0, 0, 0.3);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}

.footer-brand h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

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

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

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

.footer-bottom {
    text-align: center;
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.9rem;
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Media Queries */
@media (max-width: 900px) {
    .hero-container, .about-grid, .contact-card {
        grid-template-columns: 1fr;
    }
    
    .hero {
        text-align: center;
        padding-top: 120px;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        background: var(--clr-bg);
        flex-direction: column;
        justify-content: center;
        padding: 2rem;
        transform: translateX(100%);
        transition: var(--transition-smooth);
    }
    
    .nav-links.active {
        transform: translateX(0);
    }
    
    .mobile-menu-btn {
        display: flex;
    }

    .mobile-menu-btn.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }
    .mobile-menu-btn.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .contact-info, .contact-form {
        padding: 2rem;
    }
}