@import url('https://fonts.googleapis.com/css2?family=Crimson+Text:wght@400;600;700&family=Source+Sans+3:wght@300;400;500;600;700&display=swap');

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

:root {
    --burgundy: #8B1538;
    --gold: #D4AF37;
    --navy: #2C3E50;
    --cream: #F8F6F0;
    --charcoal: #34495E;
    --silver: #BDC3C7;
    --pearl: #ECF0F1;
    --forest: #27AE60;
    --copper: #E67E22;
    
    --primary: var(--burgundy);
    --secondary: var(--gold);
    --accent: var(--navy);
    --success: var(--forest);
    --warning: var(--copper);
    
    --text-primary: var(--charcoal);
    --text-secondary: #5D6D7E;
    --text-muted: #85929E;
    --text-light: var(--silver);
    
    --bg-primary: var(--cream);
    --bg-secondary: var(--pearl);
    --bg-card: #FFFFFF;
    --bg-overlay: rgba(139, 21, 56, 0.95);
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.25);
    
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 5rem;
    
    --font-serif: 'Crimson Text', serif;
    --font-sans: 'Source Sans 3', sans-serif;
    
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
}

h1 { font-size: clamp(2.5rem, 6vw, 4rem); }
h2 { font-size: clamp(2rem, 5vw, 3rem); }
h3 { font-size: clamp(1.5rem, 4vw, 2.2rem); }
h4 { font-size: clamp(1.3rem, 3vw, 1.8rem); }

p {
    margin-bottom: var(--space-lg);
    color: var(--text-secondary);
    font-weight: 400;
}

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

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

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(248, 246, 240, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(139, 21, 56, 0.1);
    z-index: 1000;
    padding: var(--space-lg) 0;
    transition: var(--transition);
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-2xl);
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: var(--space-2xl);
}

.header-branding img {
    height: 50px;
    transition: var(--transition);
}

.header-branding img:hover {
    transform: scale(1.05);
}

.waao-logo-link {
    display: inline-block;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.waao-logo-link:hover {
    transform: scale(1.08);
}

.waao-logo-link.text-logo {
    font-family: 'Noto Sans', sans-serif;
    font-weight: 700;
    font-size: 1.7rem;
    color: #333;
    letter-spacing: 1px;
    text-decoration: none;
    padding-left: 20px;
    border-left: 2px solid #e1d8b9;
}

.waao-logo-link.text-logo span {
    color: #b8860b;
    font-family: 'Playfair Display', serif;
}

#main-nav-wrapper {
    display: flex;
    justify-content: center;
}

.main-nav {
    display: flex;
    gap: var(--space-2xl);
    align-items: center;
}

.nav-link {
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 1rem;
    padding: var(--space-sm) var(--space-lg);
    border-radius: 30px;
    transition: var(--transition);
    position: relative;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: rgba(139, 21, 56, 0.05);
}

.menu-toggle {
    display: none;
}

#mobile-nav-menu {
    display: none;
}

main {
    margin-top: 100px;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
    padding: var(--space-3xl) var(--space-2xl);
}

.intro-section {
    background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-secondary) 100%);
    border-radius: 0;
    padding: var(--space-3xl);
    margin-bottom: var(--space-3xl);
    position: relative;
    box-shadow: var(--shadow-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    min-height: 70vh;
}

.intro-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: 
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="music-notes" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="5" cy="5" r="1" fill="rgb(139,21,56)" opacity="0.1"/><path d="M12,8 Q15,5 18,8" stroke="rgb(139,21,56)" stroke-width="0.5" fill="none" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23music-notes)"/></svg>');
    opacity: 0.3;
    z-index: 0;
}

.intro-content {
    z-index: 1;
    position: relative;
}

.intro-visual {
    z-index: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.intro-visual::before {
    content: '';
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--secondary) 0%, transparent 70%);
    border-radius: 50%;
    opacity: 0.2;
}

.intro-section h2 {
    font-size: clamp(3rem, 8vw, 5rem);
    color: var(--primary);
    margin-bottom: var(--space-2xl);
    line-height: 1.1;
    font-weight: 700;
}

.intro-section p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.8;
    font-weight: 300;
}

.competition-details {
    margin-bottom: var(--space-3xl);
}

.competition-details h2 {
    text-align: center;
    margin-bottom: var(--space-3xl);
    color: var(--text-primary);
    position: relative;
}

.competition-details h2::after {
    content: '';
    position: absolute;
    bottom: -var(--space-md);
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--space-2xl);
    margin: var(--space-3xl) 0;
}

.grid-item {
    background: var(--bg-card);
    border-radius: 0;
    padding: var(--space-2xl);
    transition: var(--transition);
    position: relative;
    box-shadow: var(--shadow-sm);
    border-top: 4px solid var(--primary);
}

.grid-item:nth-child(1) {
    grid-column: span 8;
    background: var(--primary);
    color: var(--cream);
}

.grid-item:nth-child(1) h3,
.grid-item:nth-child(1) p {
    color: var(--cream);
}

.grid-item:nth-child(2) {
    grid-column: span 4;
    background: var(--secondary);
    color: var(--charcoal);
    border-top-color: var(--secondary);
}

.grid-item:nth-child(2) h3,
.grid-item:nth-child(2) p {
    color: var(--charcoal);
}

.grid-item:nth-child(3) {
    grid-column: span 12;
    background: var(--bg-secondary);
    border-top-color: var(--accent);
}

.grid-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.grid-item h3 {
    color: var(--primary);
    margin-bottom: var(--space-lg);
    font-size: 1.5rem;
    font-family: var(--font-serif);
}

.grid-item p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.highlight {
    color: var(--primary);
    font-weight: 600;
}

.small-text {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-style: italic;
    margin-top: var(--space-md);
}

.cta-section {
    background: var(--bg-secondary);
    padding: var(--space-3xl);
    margin: var(--space-3xl) 0;
    box-shadow: var(--shadow-md);
    position: relative;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
}

.cta-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.cta-box {
    background: var(--bg-card);
    padding: var(--space-2xl);
    transition: var(--transition);
    position: relative;
    text-align: left;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary);
}

.cta-box:nth-child(2) {
    border-left-color: var(--secondary);
}

.cta-box:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.cta-box h2 {
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    font-size: 2rem;
    font-family: var(--font-serif);
}

.cta-box p {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    font-size: 1rem;
}

.btn-secondary {
    background: var(--primary);
    color: var(--cream);
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 1rem;
    padding: var(--space-lg) var(--space-2xl);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
}

.cta-box:nth-child(2) .btn-secondary {
    background: var(--secondary);
    color: var(--charcoal);
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.btn-secondary:hover::before {
    left: 100%;
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.announcement {
    background: var(--bg-card);
    border: 1px solid var(--silver);
    padding: var(--space-3xl);
    margin: var(--space-3xl) 0;
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-md);
}

.announcement::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
}

.announcement h2 {
    color: var(--primary);
    margin-bottom: var(--space-xl);
    font-size: 2.2rem;
    font-family: var(--font-serif);
}

.announcement p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

footer {
    background: var(--primary);
    color: var(--cream);
    padding: var(--space-2xl);
    color: var(--cream);    
    padding: 3rem 1.5rem;
    text-align: center;
    font-size: 0.9rem;
    margin-top: var(--space-3xl);
}

.footer-content {
    max-width: 1400px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-2xl);
    display: flex;
    justify-content: space-between;
    flex-direction: column;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-lg);
    gap: 1.5rem;
}

.social-links {
    display: flex;
    gap: var(--space-md);
    gap: 1rem;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--cream);
    color: var(--primary);
    border-radius: 50%;
}

.footer-links {
    margin-top: 1rem;
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.footer-link {
    color: var(--cream);
    text-decoration: none;
}
.footer-link:hover { text-decoration: underline; }
.footer-links .separator { color: rgba(255, 255, 255, 0.7); }

.company-info {
    margin-top: 1rem;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}
.company-info p { margin: 0.25rem 0; color: inherit; }

.regulation-section {
    max-width: 1000px;
    margin: 0 auto;
}

.regulation-section h2 {
    text-align: center;
    margin-bottom: var(--space-3xl);
    color: var(--primary);
    font-family: var(--font-serif);
    position: relative;
}

.regulation-section h2::after {
    content: '';
    position: absolute;
    bottom: -var(--space-md);
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: var(--secondary);
}

.regulation-section h3 {
    color: var(--primary);
    margin: var(--space-3xl) 0 var(--space-xl);
    padding: var(--space-lg) var(--space-2xl);
    background: var(--bg-secondary);
    border-left: 4px solid var(--primary);
    font-family: var(--font-serif);
    position: relative;
}

.regulation-section h3::before {
    content: counter(article-counter);
    counter-increment: article-counter;
    position: absolute;
    left: -20px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: var(--cream);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
}

.regulation-section {
    counter-reset: article-counter;
}

.regulation-section p,
.regulation-section ul,
.regulation-section ol {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-lg);
    font-size: 1rem;
    background: var(--bg-card);
    padding: var(--space-lg) var(--space-2xl);
    box-shadow: var(--shadow-sm);
}

.regulation-section strong {
    color: var(--primary);
    font-weight: 600;
}

.category-group {
    background: var(--bg-card);
    border-left: 4px solid var(--secondary);
    padding: var(--space-2xl);
    margin: var(--space-2xl) 0;
    box-shadow: var(--shadow-sm);
}

.category-group h4 {
    color: var(--secondary);
    margin-bottom: var(--space-xl);
    font-size: 1.3rem;
    font-family: var(--font-serif);
}

.note {
    background: var(--bg-secondary);
    border-left: 4px solid var(--copper);
    padding: var(--space-lg);
    margin: var(--space-xl) 0;
    font-style: italic;
    color: var(--text-secondary);
    box-shadow: var(--shadow-sm);
}

.section-separator {
    border: none;
    height: 2px;
    background: var(--secondary);
    margin: var(--space-3xl) auto;
    width: 200px;
}

.application-section {
    max-width: 1000px;
    margin: 0 auto;
}

.application-section h2 {
    text-align: center;
    margin-bottom: var(--space-3xl);
    color: var(--primary);
    font-family: var(--font-serif);
}

.application-section ol {
    counter-reset: step-counter;
    list-style: none;
    padding: 0;
}

.application-section ol li {
    counter-increment: step-counter;
    margin-bottom: var(--space-2xl);
    padding: var(--space-2xl);
    background: var(--bg-card);
    border-left: 4px solid var(--primary);
    position: relative;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.application-section ol li:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(5px);
}

.application-section ol li::before {
    content: counter(step-counter);
    position: absolute;
    left: -20px;
    top: var(--space-lg);
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: var(--cream);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.1rem;
}

#paymentButton,
#formLinkButton {
    background: var(--primary);
    color: var(--cream);
    border: none;
    padding: var(--space-lg) var(--space-2xl);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    display: block;
    margin: var(--space-2xl) auto;
    max-width: 400px;
    width: 100%;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: var(--font-sans);
}

#paymentButton:hover,
#formLinkButton:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background: var(--secondary);
    color: var(--charcoal);
}

.results-section {
    max-width: 1200px;
    margin: 0 auto;
}

.results-section h2 {
    text-align: center;
    margin-bottom: var(--space-2xl);
    color: var(--primary);
    font-family: var(--font-serif);
    font-size: 2.5rem;
}

.results-section h3 {
    text-align: center;
    margin: var(--space-3xl) 0 var(--space-xl);
    color: var(--text-primary);
    font-family: var(--font-serif);
    font-size: 1.8rem;
    background: var(--bg-secondary);
    padding: var(--space-lg);
    border-top: 3px solid var(--primary);
}

#results-announcement-pending {
    text-align: center;
    padding: var(--space-3xl);
    background: var(--bg-secondary);
    margin: var(--space-2xl) 0;
    border: 2px solid var(--silver);
    box-shadow: var(--shadow-sm);
}

.section-description {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--space-3xl);
    font-style: italic;
    font-size: 1.1rem;
    line-height: 1.8;
}

.grand-prize-solo-card-container {
    display: flex;
    justify-content: center;
    margin: var(--space-3xl) 0;
}

.grand-prize-card {
    background: var(--bg-card);
    border: 3px solid var(--secondary);
    padding: var(--space-3xl);
    text-align: center;
    box-shadow: var(--shadow-lg);
    max-width: 600px;
    position: relative;
}

.grand-prize-card::before {
    content: '★';
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    font-size: 2rem;
    color: var(--secondary);
}

.grand-prize-card h4 {
    font-size: 1.8rem;
    margin-bottom: var(--space-xl);
    color: var(--primary);
    font-family: var(--font-serif);
}

.winner-photo-lg {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin: var(--space-xl) auto;
    border: 3px solid var(--secondary);
}

.winner-name-lg {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
    font-family: var(--font-serif);
}

.winner-quote {
    font-style: italic;
    line-height: 1.7;
    font-size: 1rem;
    color: var(--text-secondary);
}

.professional-winners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-2xl);
    margin: var(--space-3xl) 0;
}

.winner-card-highlight {
    background: var(--bg-card);
    border-top: 4px solid var(--primary);
    padding: var(--space-2xl);
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.winner-card-highlight:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.winner-card-highlight h4 {
    color: var(--primary);
    margin-bottom: var(--space-xl);
    font-size: 1.3rem;
    font-family: var(--font-serif);
}

.winner-rank-list {
    list-style: none;
    text-align: left;
}

.winner-rank-list li {
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-secondary);
    border-left: 3px solid var(--primary);
    transition: var(--transition);
    font-family: var(--font-sans);
}

.winner-rank-list li:hover {
    background: var(--bg-card);
    transform: translateX(5px);
    box-shadow: var(--shadow-sm);
}

.winner-rank-list li strong {
    color: var(--primary);
    font-weight: 600;
}

.detailed-results-notice {
    text-align: center;
    background: var(--bg-secondary);
    padding: var(--space-2xl);
    margin: var(--space-3xl) 0;
    border-top: 3px solid var(--copper);
    font-style: italic;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.8;
    box-shadow: var(--shadow-sm);
}

.contact-section {
    max-width: 800px;
    margin: 0 auto;
}

.contact-section h2 {
    text-align: center;
    margin-bottom: var(--space-3xl);
    color: var(--primary);
    font-family: var(--font-serif);
}

.contact-section h3 {
    color: var(--primary);
    margin: var(--space-2xl) 0 var(--space-lg);
    font-size: 1.3rem;
    background: var(--bg-secondary);
    padding: var(--space-lg);
    border-left: 4px solid var(--primary);
    font-family: var(--font-serif);
}

.contact-section a {
    color: var(--primary);
    font-weight: 500;
    transition: var(--transition);
    text-decoration: underline;
    text-decoration-color: transparent;
}

.contact-section a:hover {
    color: var(--secondary);
    text-decoration-color: var(--secondary);
}

.contact-note {
    background: var(--bg-secondary);
    border-left: 4px solid var(--copper);
    padding: var(--space-lg);
    margin: var(--space-2xl) 0;
    font-style: italic;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
    box-shadow: var(--shadow-sm);
}

@media (max-width: 1024px) {
    .header-inner {
        padding: 0 var(--space-xl);
        gap: var(--space-lg);
    }
    
    main {
        padding: var(--space-2xl) var(--space-xl);
    }
    
    .intro-section {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
        text-align: center;
        padding: var(--space-2xl);
    }
    
    .detail-grid {
        grid-template-columns: repeat(8, 1fr);
        gap: var(--space-xl);
    }
    
    .grid-item:nth-child(1) {
        grid-column: span 8;
    }
    
    .grid-item:nth-child(2) {
        grid-column: span 8;
    }
    
    .grid-item:nth-child(3) {
        grid-column: span 8;
    }
    
    .cta-container {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }
    
    .professional-winners-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: var(--space-lg);
    }
}

@media (max-width: 890px) {
    .header-inner {
        grid-template-columns: 1fr auto;
        padding: 0 var(--space-lg);
        justify-content: space-between;
    }
    
    .header-branding img {
        height: 45px;
    }
    
    #main-nav-wrapper {
        display: none;
    }
    
    .menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: space-around;
        width: 30px;
        height: 20px;
        cursor: pointer;
    }
    
    .menu-toggle .bar {
        width: 100%;
        height: 3px;
        background: var(--primary);
        border-radius: 2px;
        transition: var(--transition);
    }
    
    .menu-toggle:hover .bar {
        background: var(--secondary);
    }
    
    .menu-toggle.menu-open .bar:nth-child(1) {
        transform: translateY(6px) rotate(45deg);
    }
    
    .menu-toggle.menu-open .bar:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.menu-open .bar:nth-child(3) {
        transform: translateY(-6px) rotate(-45deg);
    }
    
    #mobile-nav-menu {
        display: flex;
        position: fixed;
        top: 90px;
        left: 0;
        width: 100%;
        height: calc(100vh - 90px);
        background: var(--bg-overlay);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        z-index: 999;
        transform: translateY(-100%);
        transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease, visibility 0.4s;
        overflow-y: auto;
        opacity: 0;
        visibility: hidden;
        padding: var(--space-2xl) var(--space-lg);
    }
    
    #mobile-nav-menu.menu-open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    #mobile-nav-menu .main-nav {
        flex-direction: column;
        width: 100%;
        gap: var(--space-md);
    }
    
    #mobile-nav-menu .nav-link {
        padding: var(--space-lg);
        width: 100%;
        text-align: center;
        background: var(--cream);
        color: var(--primary);
        font-weight: 600;
        border: 2px solid transparent;
        transition: var(--transition);
    }
    
    #mobile-nav-menu .nav-link:hover,
    #mobile-nav-menu .nav-link.active {
        background: var(--primary);
        color: var(--cream);
        border-color: var(--secondary);
    }
    
    main {
        padding: var(--space-xl) var(--space-lg);
    }
    
    .intro-section {
        padding: var(--space-xl) var(--space-lg);
        margin-bottom: var(--space-2xl);
        min-height: 50vh;
    }
    
    .intro-section h2 {
        font-size: clamp(2rem, 8vw, 3rem);
    }
    
    .intro-section p {
        font-size: 1rem;
    }
    
    .detail-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .grid-item:nth-child(1),
    .grid-item:nth-child(2),
    .grid-item:nth-child(3) {
        grid-column: span 1;
    }
    
    .cta-section {
        padding: var(--space-2xl) var(--space-lg);
    }
    
    .cta-box {
        padding: var(--space-xl);
    }
    
    .professional-winners-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .grand-prize-card {
        padding: var(--space-2xl);
        margin: 0 var(--space-lg);
    }
    
    .announcement {
        padding: var(--space-2xl) var(--space-lg);
        margin: var(--space-2xl) 0;
    }
    
    .announcement h2 {
        font-size: 1.8rem;
    }
    
    .results-section h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .header-inner {
        padding: 0 var(--space-md);
    }
    
    .header-branding img {
        height: 40px;
    }
    
    main {
        padding: var(--space-lg) var(--space-md);
    }
    
    .intro-section {
        padding: var(--space-lg) var(--space-md);
    }
    
    .intro-section h2 {
        font-size: clamp(1.8rem, 10vw, 2.5rem);
        margin-bottom: var(--space-lg);
    }
    
    .intro-section p {
        font-size: 0.95rem;
    }
    
    .cta-section {
        padding: var(--space-xl) var(--space-md);
    }
    
    .cta-box {
        padding: var(--space-lg);
    }
    
    .cta-box h2 {
        font-size: 1.5rem;
    }
    
    .btn-secondary {
        padding: var(--space-md) var(--space-lg);
        font-size: 0.9rem;
    }
    
    .grid-item {
        padding: var(--space-lg);
    }
    
    .detail-grid {
        gap: var(--space-md);
    }
    
    .announcement {
        padding: var(--space-xl) var(--space-md);
    }
    
    .announcement h2 {
        font-size: 1.6rem;
    }

    .footer-content {
        flex-direction: column;
        justify-content: center;
        text-align: center;
        gap: var(--space-md);
    }
    
    .regulation-section h2,
    .results-section h2,
    .contact-section h2 {
        font-size: clamp(1.5rem, 6vw, 2rem);
    }
    
    .regulation-section h3 {
        font-size: 1.2rem;
        padding: var(--space-md) var(--space-lg);
    }
    
    .winner-card-highlight {
        padding: var(--space-lg);
    }
    
    .grand-prize-card {
        padding: var(--space-xl) var(--space-md);
    }
    
    .application-section ol li {
        padding: var(--space-lg);
        margin-bottom: var(--space-lg);
    }
    
    .application-section ol li::before {
        width: 35px;
        height: 35px;
        font-size: 1rem;
        left: -18px;
    }
    
    #paymentButton,
    #formLinkButton {
        padding: var(--space-md) var(--space-lg);
        font-size: 1rem;
    }
    
    .category-card {
        padding: var(--space-lg);
    }
    .category-card h3 {
        font-size: 1.3rem;
    }
    .category-card .price {
        font-size: 1.2rem;
    }
    .category-card .description {
        font-size: 0.9rem;
    }
}

.application-section .section-description {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--space-3xl);
    font-size: 1.1rem;
    line-height: 1.8;
}

.category-card-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2xl);
    margin-bottom: var(--space-3xl);
}

.category-card {
    background: var(--bg-card);
    border-radius: 0;
    padding: var(--space-2xl);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-top: 4px solid var(--primary);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.category-card h3 {
    font-family: var(--font-serif);
    color: var(--primary);
    margin-bottom: var(--space-lg);
    font-size: 1.8rem;
    line-height: 1.2;
}

.category-card .price {
    font-family: var(--font-serif);
    font-weight: 700;
    color: var(--secondary);
    font-size: 1.6rem;
    margin-bottom: var(--space-md);
}

.category-card .description {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: var(--space-xl);
    flex-grow: 1;
}

.btn-category-pay {
    background: var(--primary);
    color: var(--cream);
    font-family: var(--font-sans);
    font-weight: 600;
    font-size: 1rem;
    padding: var(--space-lg) var(--space-2xl);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: block;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    width: 100%;
    box-sizing: border-box;
}

.btn-category-pay::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: var(--transition);
}

.btn-category-pay:hover::before {
    left: 100%;
}

.btn-category-pay:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background: var(--secondary);
    color: var(--charcoal);
}

@media (max-width: 890px) {
    .category-card-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .category-card {
        padding: var(--space-xl);
    }

    .category-card h3 {
        font-size: 1.5rem;
    }

    .category-card .price {
        font-size: 1.4rem;
    }

    .category-card .description {
        font-size: 0.95rem;
    }

    .btn-category-pay {
        padding: var(--space-md) var(--space-lg);
        font-size: 0.9rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

button:focus,
a:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(139, 21, 56, 0.2);
}

::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 6px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary);
}

::selection {
    background: var(--primary);
    color: var(--cream);
}

::-moz-selection {
    background: var(--primary);
    color: var(--cream);
}

@media print {
    * {
        color: black !important;
        background: white !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    header, footer, .cta-section, .menu-toggle, #mobile-nav-menu {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
        margin: 0;
    }
    
    main {
        margin-top: 0;
        padding: 0;
    }
    
    h1, h2, h3, h4, h5, h6 {
        page-break-after: avoid;
        color: black !important;
    }
    
    .grid-item,
    .winner-card-highlight,
    .category-group {
        page-break-inside: avoid;
        border: 1px solid black;
        margin-bottom: 1rem;
        padding: 1rem;
    }
}

@media (prefers-contrast: high) {
    :root {
        --primary: #000080;
        --secondary: #FFD700;
        --text-primary: #000000;
        --text-secondary: #333333;
        --bg-primary: #FFFFFF;
        --bg-secondary: #F5F5F5;
        --bg-card: #FFFFFF;
    }
    
    .grid-item,
    .cta-box,
    .winner-card-highlight {
        border: 2px solid var(--text-primary);
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #F8F6F0;
        --text-secondary: #BDC3C7;
        --text-muted: #85929E;
        --bg-primary: #1C1C1C;
        --bg-secondary: #2C2C2C;
        --bg-card: #363636;
        --bg-overlay: rgba(139, 21, 56, 0.95);
    }
    
    body {
        background-color: var(--bg-primary);
        color: var(--text-primary);
    }
    
    header {
        background: rgba(28, 28, 28, 0.95);
        border-bottom-color: rgba(139, 21, 56, 0.3);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.grid-item {
    animation: fadeInUp 0.6s ease-out forwards;
}

.grid-item:nth-child(1) { animation-delay: 0.1s; }
.grid-item:nth-child(2) { animation-delay: 0.2s; }
.grid-item:nth-child(3) { animation-delay: 0.3s; }

.cta-box {
    animation: slideInLeft 0.6s ease-out forwards;
}

.cta-box:nth-child(1) { animation-delay: 0.1s; }
.cta-box:nth-child(2) { animation-delay: 0.2s; }

html {
    scroll-behavior: smooth;
}

.loading {
    opacity: 0.6;
    pointer-events: none;
}

.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

.text-center {
    text-align: center;
}

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

.text-right {
    text-align: right;
}

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }