:root {
    /* Default Dark Theme */
    --bg-color: #0a0a0a;
    --text-color: #ffffff;
    --accent-color: #5c9aff;
    /* Subtle Blue */
    --secondary-bg: #1a1a1a;
    --card-bg: #242424;
    --border-color: #333333;
    --highlight-color: #82b1ff;
    /* Lighter Blue */
    --muted-text: #a0a0a0;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    --font-main: 'Outfit', sans-serif;
    --font-kor: 'Pretendard', sans-serif;
}

[data-theme="light"] {
    --bg-color: #f8f9fa;
    --text-color: #212529;
    --accent-color: #448aff;
    /* Blue */
    --secondary-bg: #ffffff;
    --card-bg: #ffffff;
    --border-color: #e9ecef;
    --highlight-color: #2979ff;
    /* Deep Blue */
    --muted-text: #6c757d;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

[data-theme="gray"] {
    --bg-color: #2d2d2d;
    --text-color: #e0e0e0;
    --accent-color: #9e9e9e;
    --secondary-bg: #3d3d3d;
    --card-bg: #454545;
    --border-color: #555555;
    --highlight-color: #bdbdbd;
    --muted-text: #b0b0b0;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main), var(--font-kor);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(var(--bg-color), 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
    letter-spacing: -0.5px;
}

.theme-switcher {
    display: flex;
    gap: 0.5rem;
}

.theme-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.5rem;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-btn:hover {
    background: var(--secondary-bg);
    transform: scale(1.1);
    border-color: var(--accent-color);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
    background: radial-gradient(circle at 50% 50%, rgba(124, 77, 255, 0.1) 0%, transparent 50%);
    position: relative;
    overflow: visible;
}

.header-icons {
    display: flex !important;
    justify-content: center;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 2rem;
    margin-top: 2rem;
    flex-wrap: nowrap !important;
    overflow-x: auto;
    overflow-y: visible;
    width: 100%;
    padding: 1rem 0;
}

.header-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    animation: float 3s ease-in-out infinite;
}

.header-icon:nth-child(1) { animation-delay: 0s; }
.header-icon:nth-child(2) { animation-delay: 0.2s; }
.header-icon:nth-child(3) { animation-delay: 0.4s; }
.header-icon:nth-child(4) { animation-delay: 0.6s; }
.header-icon:nth-child(5) { animation-delay: 0.8s; }
.header-icon:nth-child(6) { animation-delay: 1s; }
.header-icon:nth-child(7) { animation-delay: 1.2s; }
.header-icon:nth-child(8) { animation-delay: 1.4s; }
.header-icon:nth-child(9) { animation-delay: 1.6s; }
.header-icon:nth-child(10) { animation-delay: 1.8s; }
.header-icon:nth-child(11) { animation-delay: 2s; }

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
}

.header-icon i {
    width: 50px;
    height: 50px;
}

.title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.1;
    letter-spacing: -1px;
}

.title .highlight {
    color: var(--accent-color);
    background: linear-gradient(120deg, var(--accent-color), var(--highlight-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.slogan {
    font-size: 1.5rem;
    color: var(--muted-text);
    margin-bottom: 3rem;
    max-width: 600px;
}

/* Countdown */
.countdown-container {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 16px;
    min-width: 100px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.countdown-item span:first-child {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--highlight-color);
    font-variant-numeric: tabular-nums;
}

.countdown-item .label {
    font-size: 0.875rem;
    color: var(--muted-text);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 0.5rem;
}

.start-date {
    font-size: 1.1rem;
    color: var(--accent-color);
    font-weight: 500;
}

/* Main Content */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.section {
    margin-bottom: 8rem;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.section.visible {
    opacity: 1;
    transform: translateY(0);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    font-weight: 700;
}

.card {
    background: var(--card-bg);
    border-radius: 24px;
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

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

/* Schedule */
.schedule-info {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.icon-box {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
}

.icon-box svg {
    width: 48px;
    height: 48px;
    stroke-width: 1.5;
}

.schedule-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--highlight-color);
}

/* Rules */
.rule-card {
    position: relative;
    overflow: hidden;
}

.rule-number {
    font-size: 4rem;
    font-weight: 900;
    color: var(--border-color);
    opacity: 0.3;
    position: absolute;
    top: -10px;
    right: 10px;
}

.rule-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.rule-card p {
    color: var(--muted-text);
    position: relative;
    z-index: 1;
}

/* Activities Grid */
.activity-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.5rem;
}

.activity-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem 1rem;
    text-align: center;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.activity-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: var(--shadow);
}

.activity-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.activity-icon svg {
    width: 48px;
    height: 48px;
    stroke-width: 1.5;
}

.activity-name {
    font-weight: 700;
    font-size: 1.1rem;
}

.activity-card.highlight-card {
    border-color: var(--highlight-color);
    background: rgba(var(--highlight-color), 0.05);
}

.activity-card.highlight-card .activity-name {
    color: var(--highlight-color);
}

/* Fee */
.fee-card {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.fee-amount {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--accent-color);
    margin-bottom: 2rem;
}

.fee-benefits {
    list-style: none;
    text-align: left;
    display: inline-block;
}

.fee-benefits li {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.benefit-icon {
    color: var(--accent-color);
    flex-shrink: 0;
}

.benefit-icon svg {
    width: 24px;
    height: 24px;
    stroke-width: 2;
}

/* Exhibition */
.exhibition-card {
    text-align: center;
}

.exhibition-details {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.detail-item .label {
    font-size: 0.9rem;
    color: var(--muted-text);
    text-transform: uppercase;
}

.detail-item .value {
    font-size: 1.5rem;
    font-weight: 700;
}

.exhibition-note {
    color: var(--highlight-color);
    font-weight: 500;
    margin-bottom: 2rem;
}

/* Exhibition Gallery */
.exhibition-gallery {
    margin-top: 3rem;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.gallery-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 1;
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.gallery-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 8px 24px rgba(92, 154, 255, 0.3);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(2px);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay svg {
    color: white;
    width: 32px;
    height: 32px;
    stroke-width: 2.5;
}

/* Image Modal */
.image-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    animation: fadeIn 0.3s ease;
}

.image-modal.active {
    display: flex;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    z-index: 1;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: scaleIn 0.3s ease;
}

@keyframes scaleIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.modal-image {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-close {
    position: absolute;
    top: -50px;
    right: 0;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.modal-close svg {
    width: 24px;
    height: 24px;
    stroke-width: 2.5;
}

.modal-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.modal-nav:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-50%) scale(1.1);
}

.modal-prev {
    left: -60px;
}

.modal-next {
    right: -60px;
}

.modal-nav svg {
    width: 24px;
    height: 24px;
    stroke-width: 2.5;
}

.modal-counter {
    position: absolute;
    bottom: -50px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

/* Responsive Gallery */
@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .modal-content {
        max-width: 95vw;
        max-height: 95vh;
    }
    
    .modal-close {
        top: -40px;
        width: 36px;
        height: 36px;
    }
    
    .modal-nav {
        width: 40px;
        height: 40px;
    }
    
    .modal-prev {
        left: -50px;
    }
    
    .modal-next {
        right: -50px;
    }
    
    .modal-counter {
        bottom: -40px;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-prev {
        left: 10px;
    }
    
    .modal-next {
        right: 10px;
    }
}

/* FAQ Section */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.faq-question {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.faq-answer {
    color: var(--text-color);
    line-height: 1.8;
}

/* CTA Button */
.cta-button {
    margin-top: 2rem;
    padding: 1rem 2.5rem;
    font-size: 1.2rem;
    font-weight: 700;
    color: white;
    background: linear-gradient(135deg, var(--accent-color), var(--highlight-color));
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(var(--accent-color), 0.4);
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
}

.cta-button span {
    display: inline-block;
}

.cta-button .button-icon {
    width: 24px;
    height: 24px;
    animation: iconPulse 2s ease-in-out infinite;
}

@keyframes iconPulse {
    0%, 100% {
        transform: translateX(0) scale(1);
        opacity: 1;
    }
    50% {
        transform: translateX(5px) scale(1.1);
        opacity: 0.8;
    }
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(var(--accent-color), 0.6);
}

.cta-button:hover .button-icon {
    animation: iconPulse 1s ease-in-out infinite;
    transform: translateX(8px) scale(1.2);
}

/* Apply Section */
.apply-card {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.apply-desc {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: var(--muted-text);
}

.apply-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.input-field {
    padding: 1rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--secondary-bg);
    color: var(--text-color);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.input-field:focus {
    outline: none;
    border-color: var(--accent-color);
}

.submit-btn {
    padding: 1rem;
    border-radius: 12px;
    border: none;
    background: var(--accent-color);
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    transition: background 0.3s ease;
}

.submit-btn:hover {
    background: var(--highlight-color);
}

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(76, 175, 80, 0.1);
    color: #4caf50;
    border: 1px solid #4caf50;
}

.form-message.error {
    display: block;
    background: rgba(244, 67, 54, 0.1);
    color: #f44336;
    border: 1px solid #f44336;
}

/* Footer */
.footer {
    background: var(--secondary-bg);
    padding: 4rem 2rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-links a {
    color: var(--muted-text);
    transition: color 0.3s ease, transform 0.3s ease;
}

.social-links a:hover {
    color: var(--accent-color);
    transform: translateY(-3px);
}

.contact-info {
    margin-bottom: 1rem;
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.contact-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 1s ease-out forwards;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}

/* New Dynamic Animations */
@keyframes gradientMove {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(10%, 10%) scale(1.1);
    }
    50% {
        transform: translate(-5%, 15%) scale(0.95);
    }
    75% {
        transform: translate(15%, -5%) scale(1.05);
    }
}

@keyframes floatRotate {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg) scale(1);
    }
    25% {
        transform: translate(30px, -30px) rotate(90deg) scale(1.1);
    }
    50% {
        transform: translate(-20px, 20px) rotate(180deg) scale(0.9);
    }
    75% {
        transform: translate(20px, 30px) rotate(270deg) scale(1.05);
    }
}

@keyframes pulseScale {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.2;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.3);
        opacity: 0.4;
    }
}

@keyframes orbFloat {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
        opacity: 0.6;
    }
    25% {
        transform: translate(40px, -40px) rotate(90deg);
        opacity: 0.8;
    }
    50% {
        transform: translate(-30px, 30px) rotate(180deg);
        opacity: 0.4;
    }
    75% {
        transform: translate(30px, 40px) rotate(270deg);
        opacity: 0.7;
    }
}

@keyframes particleFloat {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
    }
    50% {
        transform: translate(100px, -100px) scale(1.5);
        opacity: 0.8;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        transform: translate(200px, -200px) scale(0.5);
        opacity: 0;
    }
}

/* Hero Background Elements */
.hero-bg-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
    pointer-events: none;
}

/* Animated Gradient Background */
.hero-gradient {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        circle at 30% 30%,
        rgba(92, 154, 255, 0.15) 0%,
        rgba(130, 177, 255, 0.1) 25%,
        transparent 50%
    );
    animation: gradientMove 20s ease-in-out infinite;
}

[data-theme="light"] .hero-gradient {
    background: radial-gradient(
        circle at 30% 30%,
        rgba(68, 138, 255, 0.2) 0%,
        rgba(41, 121, 255, 0.15) 25%,
        transparent 50%
    );
}

[data-theme="gray"] .hero-gradient {
    background: radial-gradient(
        circle at 30% 30%,
        rgba(158, 158, 158, 0.15) 0%,
        rgba(189, 189, 189, 0.1) 25%,
        transparent 50%
    );
}

/* Large Circles */
.hero-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.4;
    filter: blur(60px);
}

.hero-circle.circle-1 {
    width: 600px;
    height: 600px;
    top: -20%;
    left: -10%;
    background: rgba(92, 154, 255, 0.3);
    animation: floatRotate 15s ease-in-out infinite;
}

.hero-circle.circle-2 {
    width: 500px;
    height: 500px;
    bottom: -15%;
    right: -5%;
    background: rgba(130, 177, 255, 0.25);
    animation: floatRotate 18s ease-in-out infinite reverse;
}

.hero-circle.circle-3 {
    width: 400px;
    height: 400px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(92, 154, 255, 0.2);
    animation: pulseScale 12s ease-in-out infinite;
}

.hero-circle.circle-4 {
    width: 350px;
    height: 350px;
    top: 20%;
    right: 10%;
    background: rgba(130, 177, 255, 0.2);
    animation: floatRotate 14s ease-in-out infinite;
}

[data-theme="light"] .hero-circle {
    filter: blur(40px);
}

[data-theme="light"] .hero-circle.circle-1 {
    background: rgba(68, 138, 255, 0.25);
}

[data-theme="light"] .hero-circle.circle-2 {
    background: rgba(41, 121, 255, 0.2);
}

[data-theme="light"] .hero-circle.circle-3 {
    background: rgba(68, 138, 255, 0.15);
}

[data-theme="light"] .hero-circle.circle-4 {
    background: rgba(41, 121, 255, 0.15);
}

[data-theme="gray"] .hero-circle.circle-1 {
    background: rgba(158, 158, 158, 0.25);
}

[data-theme="gray"] .hero-circle.circle-2 {
    background: rgba(189, 189, 189, 0.2);
}

[data-theme="gray"] .hero-circle.circle-3 {
    background: rgba(158, 158, 158, 0.15);
}

[data-theme="gray"] .hero-circle.circle-4 {
    background: rgba(189, 189, 189, 0.15);
}

/* Floating Orbs */
.hero-orb {
    position: absolute;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(92, 154, 255, 0.4), rgba(130, 177, 255, 0.3));
    filter: blur(20px);
    opacity: 0.6;
}

.hero-orb.orb-1 {
    top: 15%;
    left: 20%;
    animation: orbFloat 8s ease-in-out infinite;
}

.hero-orb.orb-2 {
    bottom: 25%;
    left: 15%;
    animation: orbFloat 10s ease-in-out infinite reverse;
}

.hero-orb.orb-3 {
    top: 60%;
    right: 20%;
    animation: orbFloat 9s ease-in-out infinite;
}

[data-theme="light"] .hero-orb {
    background: linear-gradient(135deg, rgba(68, 138, 255, 0.35), rgba(41, 121, 255, 0.25));
}

[data-theme="gray"] .hero-orb {
    background: linear-gradient(135deg, rgba(158, 158, 158, 0.3), rgba(189, 189, 189, 0.25));
}

/* Particles */
.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent-color);
    border-radius: 50%;
    opacity: 0.6;
    animation: particleFloat 15s linear infinite;
}

.particle:nth-child(1) {
    left: 10%;
    top: 20%;
    animation-delay: 0s;
    animation-duration: 12s;
}

.particle:nth-child(2) {
    left: 30%;
    top: 60%;
    animation-delay: 2s;
    animation-duration: 14s;
}

.particle:nth-child(3) {
    left: 50%;
    top: 10%;
    animation-delay: 4s;
    animation-duration: 16s;
}

.particle:nth-child(4) {
    left: 70%;
    top: 40%;
    animation-delay: 1s;
    animation-duration: 13s;
}

.particle:nth-child(5) {
    left: 20%;
    top: 80%;
    animation-delay: 3s;
    animation-duration: 15s;
}

.particle:nth-child(6) {
    left: 80%;
    top: 70%;
    animation-delay: 5s;
    animation-duration: 17s;
}

.particle:nth-child(7) {
    left: 40%;
    top: 30%;
    animation-delay: 2.5s;
    animation-duration: 14s;
}

.particle:nth-child(8) {
    left: 60%;
    top: 90%;
    animation-delay: 4.5s;
    animation-duration: 16s;
}

/* Responsive */
@media (max-width: 768px) {
    .header-icons {
        gap: 0.6rem;
    }

    .header-icon {
        width: 40px;
        height: 40px;
    }

    .header-icon i {
        width: 40px;
        height: 40px;
    }

    .title {
        font-size: 2.5rem;
    }

    .countdown-container {
        gap: 1rem;
    }

    .countdown-item {
        min-width: 80px;
        padding: 1rem;
    }

    .countdown-item span:first-child {
        font-size: 1.8rem;
    }

    .exhibition-details {
        flex-direction: column;
        gap: 1.5rem;
    }
}