:root {
    --color-background: #000000;
    --color-text: #ffffff;
    --color-text-muted: #ffffff;
    --color-accent: #ffffff;
    --color-border: #ffffff;
}

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

body {
    background: var(--color-background);
    color: var(--color-text);
    font-family: 'Space Grotesk', Arial, sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    line-height: 1.6;
    font-weight: 500;
}

.header-image {
    width: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
}

.header-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.intro {
    margin: 2rem 0;
    text-align: center;
}

.intro-text {
    font-size: 1.2rem;
    color: var(--color-text);
    max-width: 700px;
    line-height: 1.8;
    font-weight: 600;
}

.event-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem auto;
    width: 100%;
    max-width: 600px;
    align-items: center;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.5rem;
    background: var(--color-background);
    border: 3px solid var(--color-border);
    border-radius: 0;
    align-items: center;
    text-align: center;
    width: 100%;
}

.detail-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-accent);
    font-weight: 700;
    text-align: center;
}

.detail-value {
    font-size: 1.1rem;
    color: var(--color-text);
    font-weight: 600;
    text-align: center;
}

.tagline {
    font-size: 1.4rem;
    text-align: center;
    margin: 2.5rem 0;
    color: var(--color-accent);
    font-weight: 700;
    font-style: normal;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.detail-value strong {
    color: var(--color-accent);
    font-weight: 700;
}

.detail-value a {
    color: var(--color-accent);
    text-decoration: underline;
    font-weight: 700;
    transition: none;
}

.detail-value a:hover {
    color: var(--color-accent);
    text-decoration: none;
    background: var(--color-accent);
    color: var(--color-background);
}

.charity {
    margin: 2.5rem 0;
    padding: 1.5rem;
    background: var(--color-background);
    border: 3px solid var(--color-border);
    border-radius: 0;
    text-align: center;
}

.charity p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text);
    font-weight: 600;
}

.charity strong {
    color: var(--color-accent);
    font-weight: 700;
}

.charity a {
    color: var(--color-accent);
    text-decoration: underline;
    font-weight: 700;
    transition: none;
}

.charity a:hover {
    color: var(--color-accent);
    text-decoration: none;
    background: var(--color-accent);
    color: var(--color-background);
}

.cta-button {
    display: inline-block;
    background: var(--color-accent);
    color: var(--color-background);
    font-size: 1.3rem;
    font-weight: 700;
    padding: 1.2em 2.5em;
    border: 3px solid var(--color-border);
    border-radius: 0;
    margin: 2rem 0;
    text-decoration: none;
    transition: none;
    box-shadow: none;
    text-align: center;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.cta-button:hover, .cta-button:focus {
    background: var(--color-background);
    color: var(--color-accent);
    border: 3px solid var(--color-border);
}

@keyframes bounce-invite {
    0%, 100% {
        transform: translateY(0);
    }
    25% {
        transform: translateY(-8px);
    }
    50% {
        transform: translateY(0);
    }
    75% {
        transform: translateY(-4px);
    }
}

.cta-button.bounce {
    animation: bounce-invite 0.6s ease-in-out;
}

.cta-button-bottom {
    margin-top: 3rem;
}

.faq {
    width: 100%;
    max-width: 700px;
    margin: 3rem 0 2rem 0;
}

.faq-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 3px;
}

.faq-item {
    margin-bottom: 1rem;
    border: 3px solid var(--color-border);
    border-radius: 0;
    overflow: hidden;
    background: var(--color-background);
}

.faq-question {
    width: 100%;
    padding: 1.2rem 1.5rem;
    background: var(--color-background);
    border: none;
    color: var(--color-text);
    font-size: 1.1rem;
    font-weight: 700;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: none;
    font-family: 'Space Grotesk', Arial, sans-serif;
}

.faq-question:hover, .faq-question:focus {
    background: var(--color-accent);
    color: var(--color-background);
    outline: none;
}

.faq-question[aria-expanded="true"] {
    color: var(--color-background);
    background: var(--color-accent);
}

.faq-toggle {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-accent);
    transition: transform 0.3s;
    flex-shrink: 0;
    margin-left: 1rem;
}

.faq-question[aria-expanded="true"] .faq-toggle {
    transform: rotate(45deg);
    color: var(--color-background);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s ease-out;
    padding: 0 1.5rem;
}

.faq-question[aria-expanded="true"] + .faq-answer {
    max-height: 500px;
    padding: 1.2rem 1.5rem 1.5rem 1.5rem;
}

.faq-answer p {
    color: var(--color-text);
    line-height: 1.7;
    font-weight: 500;
}

.faq-answer a {
    color: var(--color-accent);
    text-decoration: underline;
    font-weight: 700;
    transition: none;
}

.faq-answer a:hover {
    color: var(--color-accent);
    text-decoration: none;
    background: var(--color-accent);
    color: var(--color-background);
}

.gallery {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.7rem;
    width: 100%;
    max-width: 700px;
    margin: 3rem 0 2rem 0;
}

.gallery img {
    width: 100%;
    height: auto;
    border-radius: 0;
    object-fit: cover;
    background: #000;
    border: 2px solid var(--color-border);
    box-shadow: none;
    cursor: default;
    transition: none;
    filter: grayscale(100%) contrast(1.2);
    pointer-events: none;
}

.gallery img.hover-active {
    transform: scale(1);
    box-shadow: none;
    filter: grayscale(100%) contrast(1.5);
    border: 3px solid var(--color-border);
}

.lightbox {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    width: 100vw;
    height: 100vh;
    background: #000000;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    flex-direction: column;
    transition: none;
}

.lightbox-img {
    max-width: 90vw;
    max-height: 70vh;
    border-radius: 0;
    border: 3px solid var(--color-border);
    box-shadow: none;
    background: #000;
    margin-bottom: 1.5rem;
    filter: grayscale(100%) contrast(1.2);
}

.lightbox-close {
    position: absolute;
    top: 1.2rem;
    right: 2rem;
    color: #fff;
    font-size: 2.5rem;
    font-weight: 700;
    cursor: pointer;
    z-index: 1010;
    background: none;
    border: none;
    outline: none;
    transition: none;
}

.lightbox-close:hover, .lightbox-close:focus {
    color: var(--color-accent);
    background: var(--color-accent);
    color: var(--color-background);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--color-accent);
    color: var(--color-background);
    border: 3px solid var(--color-border);
    border-radius: 0;
    font-size: 2rem;
    width: 2.5rem;
    height: 2.5rem;
    cursor: pointer;
    z-index: 1010;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: none;
    box-shadow: none;
    font-weight: 700;
}

.lightbox-prev {
    left: 1.5rem;
}

.lightbox-next {
    right: 1.5rem;
}

.lightbox-nav:hover, .lightbox-nav:focus {
    background: var(--color-background);
    color: var(--color-accent);
    border: 3px solid var(--color-border);
}

.acknowledgement {
    font-size: 0.9rem;
    color: var(--color-text);
    background: none;
    text-align: center;
    margin: 2rem auto 3rem auto;
    max-width: 700px;
    line-height: 1.6;
    padding: 0 1.5rem;
    font-weight: 500;
    border-top: 2px solid var(--color-border);
    padding-top: 2rem;
}

/* Mobile optimizations */
@media (max-width: 768px) {
    .container {
        padding: 1.5rem 1rem 3rem 1rem;
    }
    
    .intro {
        margin: 1.5rem 0;
    }
    
    .intro-text {
        font-size: 1.1rem;
        line-height: 1.7;
    }
    
    .event-details {
        gap: 1rem;
        margin: 1.5rem 0;
    }
    
    .detail-item {
        padding: 1.2rem;
    }
    
    .detail-label {
        font-size: 0.85rem;
    }
    
    .detail-value {
        font-size: 1rem;
    }
    
    .tagline {
        font-size: 1.2rem;
        margin: 2rem 0;
    }
    
    .charity {
        margin: 2rem 0;
        padding: 1.2rem;
    }
    
    .charity p {
        font-size: 0.95rem;
    }
    
    .cta-button {
        font-size: 1.3rem;
        padding: 1.4em 2em;
        margin: 1.5rem 0;
        width: 100%;
        max-width: 100%;
        min-height: 60px;
    }
    
    .faq {
        margin: 2rem 0 1.5rem 0;
    }
    
    .faq-title {
        font-size: 1.75rem;
        margin-bottom: 1.5rem;
    }
    
    .faq-question {
        font-size: 1rem;
        padding: 1rem;
    }
    
    .faq-answer {
        padding: 0 1rem;
    }
    
    .faq-question[aria-expanded="true"] + .faq-answer {
        padding: 1rem;
    }
    
    .acknowledgement {
        font-size: 0.85rem;
        margin: 1.5rem auto 2rem auto;
        padding: 0 1rem;
    }
    
    .gallery {
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem;
        margin: 2rem 0 1.5rem 0;
    }
    
    .lightbox-img {
        max-width: 98vw;
        max-height: 55vh;
    }
    
    .lightbox-close {
        top: 0.7rem;
        right: 1rem;
        font-size: 2rem;
    }
    
    .lightbox-nav {
        font-size: 1.5rem;
        width: 2rem;
        height: 2rem;
    }
    
    .lightbox-prev {
        left: 0.5rem;
    }
    
    .lightbox-next {
        right: 0.5rem;
    }
}

@media (min-width: 600px) {
    .intro-text {
        font-size: 1.3rem;
    }
    .event-details {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
        max-width: 100%;
        width: 100%;
    }
    .detail-item {
        width: 100%;
    }
    .detail-item-lineup {
        grid-column: 1 / -1;
    }
    .tagline {
        font-size: 1.6rem;
    }
    .cta-button {
        width: auto;
    }
    .gallery {
        grid-template-columns: 1fr 1fr 1fr;
    }
}

@media (max-width: 400px) {
    .container {
        padding: 1rem 0.75rem 2rem 0.75rem;
    }
    
    .header-img {
        width: 100%;
    }
    
    .intro-text {
        font-size: 1rem;
    }
    
    .detail-item {
        padding: 1rem;
    }
    
    .tagline {
        font-size: 1.1rem;
    }
    
    .cta-button {
        font-size: 1.2rem;
        padding: 1.3em 1.8em;
        min-height: 56px;
    }
    
    .faq-question {
        font-size: 0.95rem;
        padding: 0.9rem;
    }
    
    .faq-title {
        font-size: 1.5rem;
    }
}