/* ===========================
   PRIVATE WEDDING PHOTO GALLERY CSS
   Rachel & Parker von Kalben
   =========================== */

:root {
    /* Design tokens from primary site */
    --color-primary: #87A96B;
    --color-secondary: #6B8E5F;
    --color-accent: #A8B89B;
    --color-dark: #3D4F3D;
    --color-light: #F5F7F5;
    --color-white: #FFFFFF;
    --color-sage-light: #C8D5C0;
    --color-shadow: rgba(61, 79, 61, 0.08);
    --color-overlay: rgba(28, 38, 28, 0.88);

    --font-heading: 'Playfair Display', serif;
    --font-body: 'Lato', sans-serif;

    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-light);
    color: var(--color-dark);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* Navbar */
.gallery-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-sage-light);
    padding: 14px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--color-dark);
    letter-spacing: 0.5px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    background: var(--color-light);
    color: var(--color-dark);
    border: 1px solid var(--color-sage-light);
    transition: var(--transition-fast);
}

.nav-btn:hover {
    background: var(--color-sage-light);
}

/* Hero Section */
.hero-section {
    padding: 50px 20px 30px;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-subtitle {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-secondary);
    margin-bottom: 6px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: 12px;
    line-height: 1.2;
}

.hero-date {
    font-size: 1.05rem;
    color: #666;
    margin-bottom: 16px;
    font-weight: 300;
}

.hero-message {
    font-size: 1rem;
    color: var(--color-dark);
    opacity: 0.85;
    max-width: 550px;
    margin: 0 auto 24px;
}

/* Album Filter Bar */
.filter-container {
    max-width: 1200px;
    margin: 0 auto 30px;
    padding: 0 20px;
}

.album-tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    background: var(--color-white);
    color: var(--color-dark);
    border: 1px solid var(--color-sage-light);
    transition: var(--transition-fast);
    box-shadow: 0 2px 6px rgba(0,0,0,0.03);
}

.tab-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.tab-btn.active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(135, 169, 107, 0.25);
}

/* Photo Grid */
.gallery-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 20px 80px;
}

.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 18px;
}

.photo-card {
    position: relative;
    background: var(--color-white);
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 4 / 3;
    box-shadow: 0 4px 15px var(--color-shadow);
    cursor: pointer;
    transition: transform 0.25s var(--transition-normal), box-shadow 0.25s var(--transition-normal);
}

.photo-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(61, 79, 61, 0.15);
}

.photo-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: opacity 0.4s ease, transform 0.4s ease;
    opacity: 0;
}

.photo-card img.loaded {
    opacity: 1;
}

.photo-card:hover img.loaded {
    transform: scale(1.03);
}

.photo-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(4px);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-dark);
}

.photo-favorite-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ccc;
    transition: var(--transition-fast);
    z-index: 2;
}

.photo-favorite-btn.active,
.photo-favorite-btn:hover {
    color: #e63946;
    background: #ffffff;
}

/* Skeleton Loading State */
.skeleton-card {
    background: linear-gradient(90deg, #eef2ee 25%, #e2e8e2 50%, #eef2ee 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: 12px;
    aspect-ratio: 4 / 3;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    grid-column: 1 / -1;
}

.empty-icon {
    font-size: 3rem;
    color: var(--color-accent);
    margin-bottom: 12px;
}

.empty-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-dark);
    margin-bottom: 8px;
}

.empty-text {
    font-size: 0.95rem;
    color: #777;
}

/* Fullscreen Lightbox Viewer */
.lightbox-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: var(--color-overlay);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.lightbox-modal.active {
    opacity: 1;
    pointer-events: auto;
}

.lightbox-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    color: #ffffff;
    z-index: 10;
}

.lightbox-counter {
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 1px;
    background: rgba(255, 255, 255, 0.15);
    padding: 6px 14px;
    border-radius: 20px;
}

.lightbox-close {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.3);
}

.lightbox-content {
    position: relative;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 20px;
    overflow: hidden;
}

.lightbox-img {
    max-width: 90vw;
    max-height: 75vh;
    object-fit: contain;
    border-radius: 6px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    transition: transform 0.25s ease, opacity 0.25s ease;
    user-select: none;
}

.lightbox-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: var(--transition-fast);
    z-index: 5;
}

.lightbox-nav-btn:hover {
    background: rgba(255, 255, 255, 0.35);
}

.lightbox-prev { left: 24px; }
.lightbox-next { right: 24px; }

.lightbox-toolbar {
    padding: 20px 24px 30px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    z-index: 10;
}

.toolbar-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 22px;
    border-radius: 30px;
    font-size: 0.95rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.18);
    color: #ffffff;
    backdrop-filter: blur(6px);
    transition: var(--transition-fast);
}

.toolbar-btn:hover {
    background: rgba(255, 255, 255, 0.35);
    transform: translateY(-2px);
}

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

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

/* Modal dialog for Passcode entry */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(30, 40, 30, 0.6);
    backdrop-filter: blur(6px);
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-dialog {
    background: #ffffff;
    border-radius: 16px;
    max-width: 420px;
    width: 100%;
    padding: 36px 28px;
    text-align: center;
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.1rem;
    }
    .photo-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 12px;
    }
    .lightbox-nav-btn {
        display: none; /* Mobile uses swipe gestures */
    }
    .lightbox-img {
        max-width: 95vw;
        max-height: 70vh;
    }
    .toolbar-btn span {
        display: none; /* Icons only on small screens */
    }
    .toolbar-btn {
        padding: 12px;
        border-radius: 50%;
    }
}