:root {
    --color-primary: #1a1a2e;
    --color-secondary: #d4af37;
    --color-accent: #c77d2e;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-bg: #ffffff;
    --color-bg-alt: #f8f8f8;
    --color-border: #e0e0e0;
    
    --font-display: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;
    
    --border-radius: 8px;
    --transition: all 0.3s ease;
    
    --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);
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.header {
    background-color: var(--color-primary);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav__logo h1 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-secondary);
    font-weight: 900;
}

.nav__menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav__link {
    color: var(--color-bg);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: var(--transition);
}

.nav__link:hover::after {
    width: 100%;
}

.nav__link:hover {
    color: var(--color-secondary);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--color-bg);
    transition: var(--transition);
}

.hero {
    position: relative;
    height: 80vh;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, #2d2d44 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><path d="M10 10h80v80H10z" fill="none" stroke="%23d4af37" stroke-width="0.5" opacity="0.1"/></svg>');
    background-size: 100px 100px;
    opacity: 0.3;
}

.hero__content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-bg);
}

.hero__title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    color: var(--color-secondary);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero__subtitle {
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    margin-bottom: var(--spacing-lg);
    font-weight: 300;
}

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn--primary {
    background-color: var(--color-secondary);
    color: var(--color-primary);
}

.btn--primary:hover {
    background-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.section__title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.section__subtitle {
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    font-size: 1.1rem;
}

.events {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-bg);
}

.events__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.event-card {
    background: var(--color-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--color-border);
}

.event-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.event-card__image {
    width: 100%;
    height: 240px;
    object-fit: cover;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.event-card__content {
    padding: var(--spacing-md);
}

.event-card__title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.event-card__details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.event-card__detail {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-light);
    font-size: 0.95rem;
}

.event-card__detail::before {
    content: '📍';
    font-size: 1rem;
}

.event-card__detail--date::before {
    content: '📅';
}

.event-card__detail--time::before {
    content: '🕐';
}

.event-card__countdown {
    background-color: var(--color-bg-alt);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
}

.countdown__title {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.countdown__timer {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
}

.countdown__item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.countdown__value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-secondary);
    font-family: var(--font-display);
}

.countdown__label {
    font-size: 0.75rem;
    color: var(--color-text-light);
    text-transform: uppercase;
}

.sponsors {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-bg-alt);
}

.sponsors__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    align-items: center;
    justify-items: center;
}

.sponsor-card {
    background: var(--color-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    width: 100%;
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sponsor-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.sponsor-card__logo {
    max-width: 100%;
    max-height: 100px;
    object-fit: contain;
}

.contact {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-primary);
    color: var(--color-bg);
}

.contact .section__title {
    color: var(--color-secondary);
}

.contact .section__subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.contact__form {
    max-width: 600px;
    margin: 0 auto;
}

.form__group {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.form__group input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form__group input:focus {
    outline: none;
    border-color: var(--color-secondary);
}

.form__privacy {
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer {
    background-color: #0f0f1e;
    color: var(--color-bg);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer__section h3,
.footer__section h4 {
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.footer__section p {
    color: rgba(255, 255, 255, 0.8);
}

.footer__social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer__social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-secondary);
    color: var(--color-primary);
    border-radius: 50%;
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
}

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

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background-color: var(--color-primary);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
    }
    
    .nav__menu.active {
        left: 0;
    }
    
    .nav__toggle {
        display: flex;
    }
    
    .nav__toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav__toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav__toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .events__grid {
        grid-template-columns: 1fr;
    }
    
    .form__group {
        flex-direction: column;
    }
    
    .sponsors__grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
}

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

.loading {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-light);
}

.error {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-accent);
}