/* Kupferne Hochzeit - Mobile First Styles */

:root {
    --copper: #b87333;
    --copper-light: #d4956a;
    --copper-dark: #8b4513;
    --cream: #faf8f5;
    --text: #333;
    --text-light: #666;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Georgia', 'Times New Roman', serif;
    background: var(--cream);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

/* Header */
header {
    text-align: center;
    padding: 3rem 1rem 2rem;
    background: linear-gradient(135deg, var(--copper) 0%, var(--copper-dark) 100%);
    color: white;
}

header h1 {
    font-size: 2rem;
    font-weight: normal;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

header .subtitle {
    font-size: 1rem;
    opacity: 0.9;
    font-style: italic;
}

/* Intro & Outro */
.intro,
.outro {
    max-width: 700px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    text-align: center;
}

.intro p,
.outro p {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
}

.outro {
    padding-top: 1rem;
    padding-bottom: 3rem;
}

/* Timeline */
.timeline {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
    position: relative;
}

/* Timeline line */
.timeline::before {
    content: '';
    position: absolute;
    left: 1.5rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--copper-light);
}

/* Year sections */
.year {
    position: relative;
    margin-bottom: 2rem;
    padding-left: 3rem;
}

.year-marker {
    position: relative;
    font-size: 1.5rem;
    color: var(--copper);
    font-weight: normal;
    margin-bottom: 1rem;
}

/* Year dot on timeline */
.year-marker::before {
    content: '';
    position: absolute;
    left: -2.25rem;
    top: 50%;
    transform: translateY(-50%);
    width: 14px;
    height: 14px;
    background: var(--copper);
    border-radius: 50%;
    border: 3px solid var(--cream);
    box-shadow: 0 0 0 2px var(--copper-light);
}

/* Photo grid */
.photos {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

/* Photo cards */
.photo-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.photo-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.photo-card:active {
    transform: scale(0.98);
}

.photo-card img {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 4/3;
    object-fit: cover;
}

.photo-card .caption {
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    color: var(--text-light);
    text-align: center;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    padding: 1rem;
}

.lightbox.active {
    display: flex;
}

.lightbox-img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 4px;
}

.lightbox-caption {
    color: white;
    text-align: center;
    margin-top: 1rem;
    font-size: 0.9rem;
    opacity: 0.8;
}

.lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: white;
    font-size: 2.5rem;
    cursor: pointer;
    padding: 0.5rem;
    line-height: 1;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.lightbox-close:hover {
    opacity: 1;
}

.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    padding: 1rem 0.75rem;
    border-radius: 4px;
    opacity: 0.7;
    transition: opacity 0.2s, background 0.2s;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.2);
}

.lightbox-prev {
    left: 0.5rem;
}

.lightbox-next {
    right: 0.5rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-light);
    font-size: 0.9rem;
    font-style: italic;
}

/* ========================================
   Tablet (min 600px)
   ======================================== */
@media (min-width: 600px) {
    header h1 {
        font-size: 2.5rem;
    }

    header .subtitle {
        font-size: 1.2rem;
    }

    .timeline::before {
        left: 2rem;
    }

    .year {
        padding-left: 4rem;
    }

    .year-marker::before {
        left: -2.75rem;
    }

    .photos {
        grid-template-columns: repeat(2, 1fr);
    }

    .lightbox-prev {
        left: 1rem;
    }

    .lightbox-next {
        right: 1rem;
    }
}

/* ========================================
   Desktop (min 900px)
   ======================================== */
@media (min-width: 900px) {
    header {
        padding: 4rem 2rem 3rem;
    }

    header h1 {
        font-size: 3rem;
    }

    .timeline {
        padding: 3rem 2rem;
    }

    .photos {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }

    .photo-card .caption {
        padding: 1rem 1.25rem;
    }

    .lightbox-prev,
    .lightbox-next {
        padding: 1.5rem 1rem;
        font-size: 2.5rem;
    }

    .lightbox-prev {
        left: 2rem;
    }

    .lightbox-next {
        right: 2rem;
    }
}