:root {
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-gray-light: #F5F5F5;
    --color-gray-medium: #666666;
    --color-accent: #D4AF37;
    
    --font-script: 'Pinyon Script', cursive;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    
    --max-width: 1200px;
    --content-width: 800px;
    
    --font-size-base: clamp(1rem, 2vw, 1.125rem);
    --font-size-h1: clamp(3rem, 8vw, 5rem);
    --font-size-h2: clamp(2rem, 4vw, 2.5rem);
    --font-size-h3: clamp(1.25rem, 3vw, 1.5rem);
    --font-size-meta: 0.875rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-black);
    background-color: var(--color-white);
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: opacity 0.3s ease;
}

a:hover {
    opacity: 0.8;
}

.hero {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    background-color: var(--color-black);
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md);
    background: linear-gradient(to bottom, rgba(0,0,0,0.7), transparent);
}

.main-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    max-width: var(--max-width);
    margin: 0 auto;
}

.main-nav a {
    color: var(--color-white);
    font-size: var(--font-size-meta);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: var(--spacing-xs);
}

.hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--color-white);
    width: 100%;
    padding: 0 var(--spacing-md);
}

.names {
    font-family: var(--font-script);
    font-size: var(--font-size-h1);
    font-weight: normal;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    animation: fadeIn 2s ease-out;
}

.date {
    font-size: var(--font-size-meta);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-lg);
}

.rsvp-button {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-white);
    color: var(--color-black);
    font-size: var(--font-size-meta);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: all 0.3s ease;
}

.rsvp-button:hover {
    background-color: var(--color-black);
    color: var(--color-white);
    border: 1px solid var(--color-white);
}

.intro-section {
    padding: var(--spacing-xxl) var(--spacing-md);
    text-align: center;
    max-width: var(--content-width);
    margin: 0 auto;
}

.welcome-text {
    font-size: var(--font-size-meta);
    letter-spacing: 0.1em;
    line-height: 1.8;
    color: var(--color-gray-medium);
}

.section {
    padding: var(--spacing-xl) var(--spacing-md);
    max-width: var(--max-width);
    margin: 0 auto;
    animation: fadeIn 1s ease-out;
}

.section h2 {
    font-family: var(--font-script);
    font-size: var(--font-size-h2);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-weight: normal;
}

.section-image {
    max-width: 600px;
    width: 100%;
    margin: var(--spacing-lg) auto;
    border-radius: 8px;
}

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

.detail-card {
    text-align: center;
    padding: var(--spacing-md);
    background-color: var(--color-gray-light);
    border-radius: 8px;
}

.detail-card h3 {
    font-size: var(--font-size-h3);
    margin-bottom: var(--spacing-sm);
}

.detail-time {
    font-size: var(--font-size-h3);
    font-weight: bold;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.timeline {
    display: grid;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.timeline-item {
    text-align: center;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-light);
}

.timeline-item h3 {
    font-size: var(--font-size-h3);
    margin-bottom: var(--spacing-md);
}

.timeline-item p {
    margin-bottom: var(--spacing-sm);
}

.countdown {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.countdown h3 {
    font-size: var(--font-size-h3);
    margin-bottom: var(--spacing-md);
}

.timer {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.time-unit {
    text-align: center;
    padding: var(--spacing-md);
    background-color: var(--color-black);
    color: var(--color-white);
    border-radius: 8px;
    min-width: 100px;
}

.time-unit span {
    display: block;
    font-size: var(--font-size-h2);
    font-weight: bold;
}

.time-unit label {
    font-size: var(--font-size-meta);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

iframe {
    max-width: 100%;
    border-radius: 8px;
    margin: var(--spacing-lg) 0;
}

.rsvp-text {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.rsvp-modal-button {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-black);
    color: var(--color-white);
    font-size: var(--font-size-meta);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border: 2px solid var(--color-black);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 0 auto;
    display: block;
}

.rsvp-modal-button:hover {
    background-color: var(--color-white);
    color: var(--color-black);
}

.rsvp-status {
    text-align: center;
    margin-top: var(--spacing-md);
    color: var(--color-accent);
    font-weight: bold;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    position: relative;
    background-color: var(--color-white);
    margin: 5% auto;
    padding: 0;
    width: 90%;
    max-width: 800px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    animation: slideIn 0.3s ease;
}

.modal-close {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 2rem;
    font-weight: bold;
    color: var(--color-gray-medium);
    background: var(--color-white);
    border: none;
    cursor: pointer;
    z-index: 1001;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background-color: var(--color-gray-light);
    color: var(--color-black);
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.registry {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.registry h3 {
    font-size: var(--font-size-h3);
    margin-bottom: var(--spacing-md);
}

.registry-button {
    display: inline-block;
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-black);
    color: var(--color-white);
    font-size: var(--font-size-meta);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.registry-button:hover {
    background-color: var(--color-accent);
}

footer {
    background-color: var(--color-black);
    color: var(--color-white);
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-md);
    margin-top: var(--spacing-xxl);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .main-nav {
        gap: var(--spacing-sm);
    }
    
    .main-nav a {
        font-size: 0.75rem;
    }
    
    .hero {
        min-height: 500px;
        height: 100vh;
    }
    
    .hero-image {
        object-fit: contain;
        object-position: center;
        background-color: var(--color-black);
    }
    
    .timer {
        gap: var(--spacing-sm);
    }
    
    .time-unit {
        min-width: 80px;
        padding: var(--spacing-sm);
    }
    
    .details-grid {
        grid-template-columns: 1fr;
    }
    
    .section {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}