/* Gallery CSS Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    background: white;
}


/* Smooth transition for mobile menu */
#mobile-menu {
  transition: max-height 0.3s ease-in-out, opacity 0.3s ease-in-out;
  overflow: hidden;
}

/* Initially hidden, max-height 0 */
#mobile-menu.hidden {
  max-height: 0;
  opacity: 0;
  pointer-events: none;
}

/* Visible menu */
#mobile-menu.show {
  max-height: 500px; /* large enough for menu content */
  opacity: 1;
  pointer-events: auto;
}

/* Header Styles */
/* Header */
#site-header {
  background-color: white;
  transition: background-color 0.3s ease, box-shadow 0.3s ease  ,padding 0.3s ease;
}

#site-header.scrolled {
  background-color: white;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
   padding-top: 0.15rem;      /* reduce top padding */
  padding-bottom: 0.15rem;
}

.nav-link {
  color: white;
  transition: color 0.3s ease;
}

#site-header.scrolled .nav-link {
  color: #1a202c;
}

.nav-link:hover {
  color: #00aaff;
}


/* Main Container */
.main-container {
    margin-top: 50px;
    padding: 2rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

/* Section Titles */
.section-title {
    color: rgb(6, 37, 160);
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    margin-top: 6rem;
    font-weight: 450;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

/* Albums Grid */
.albums-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.album-card {
    cursor: pointer;
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.album-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.album-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.album-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.album-card:hover .album-image img {
    transform: scale(1.1);
}

.album-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.8) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
    color: white;
}

.album-title {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.album-count {
    font-size: 1rem;
    opacity: 0.8;
    margin-bottom: 1rem;
}

.view-album-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
}

.view-album-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* Gallery Sections */
.gallery-section {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.gallery-section.active {
    display: block;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.back-btn {
    background: rgba(0, 0, 0, 0.2);
    color: rgb(0, 0, 0);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.back-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* Photo Grid */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.photo-item {
    border-radius: 10px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    cursor: pointer;
}

.photo-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.photo-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.photo-item:hover img {
    transform: scale(1.05);
}

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

.albums-overview {
    animation: fadeIn 0.5s ease-in-out;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        padding: 1rem;
        gap: 1rem;
    }

    .header-title {
        font-size: 1.5rem;
    }

    .nav {
        gap: 1rem;
    }

    .main-container {
        margin-top: 140px;
        padding: 1rem;
    }

    .section-title {
        font-size: 2rem;
        margin-bottom: 2rem;
    }

    .albums-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .section-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .photo-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .albums-grid {
        grid-template-columns: 1fr;
    }

    .photo-grid {
        grid-template-columns: 1fr;
    }

    .album-image {
        height: 200px;
    }
}