/* ============================================
   Kids Photo Gallery - Stylesheet
   ============================================ */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette - Accessible, family-friendly colors */
    --color-primary: #2c5aa0;
    --color-primary-dark: #1e3f73;
    --color-primary-light: #4a7bc8;
    --color-secondary: #ff6b9d;
    --color-text: #2c3e50;
    --color-text-light: #7f8c8d;
    --color-bg: #ffffff;
    --color-bg-alt: #f8f9fa;
    --color-border: #e1e8ed;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Typography */
    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-xxl: 2rem;
    --font-size-hero: 2.5rem;
    
    /* Layout */
    --max-width: 1200px;
    --nav-height: 70px;
    --border-radius: 8px;
    --transition: 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    padding-top: var(--nav-height);
}

/* Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    height: var(--nav-height);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.site-title a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition);
}

.site-title a:hover {
    color: var(--color-primary-dark);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition);
    padding: var(--spacing-xs) 0;
}

.nav-links a:hover {
    color: var(--color-primary);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
}

.hero-content {
    max-width: var(--max-width);
    margin: 0 auto;
}

.hero-title {
    font-size: var(--font-size-hero);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-description {
    font-size: var(--font-size-lg);
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.95;
    line-height: 1.7;
}

/* Sections */
.section {
    padding: var(--spacing-xl) var(--spacing-md);
}

.section-alt {
    background-color: var(--color-bg-alt);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
}

.section-title {
    font-size: var(--font-size-xxl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary-dark);
    text-align: center;
}

.section-intro {
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-lg);
}

/* Photo Grid */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

/* SIGAL INTEGRATION NOTE: 
   When you integrate Sigal, you can replace .photo-item with actual <a> tags 
   linking to individual photo pages, or use the thumbnail structure Sigal generates.
   The grid will automatically adapt to your content. */

.photo-item {
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition), box-shadow var(--transition);
}

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

.photo-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder-text {
    color: var(--color-primary);
    font-weight: 500;
    font-size: var(--font-size-lg);
}

/* Albums Grid */
.albums-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

/* SIGAL INTEGRATION NOTE:
   Replace .album-item with links to Sigal-generated album directories.
   Sigal typically creates directories with thumbnail images and index pages. */

.album-item {
    text-align: center;
}

.album-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, #fff3e0 0%, #ffe0b2 100%);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition), box-shadow var(--transition);
}

.album-item:hover .album-placeholder {
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.album-title {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-text);
    margin-top: var(--spacing-xs);
}

/* About Section */
.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-content p {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--color-text);
}

.about-note {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--color-bg-alt);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--border-radius);
}

.about-note em {
    color: var(--color-text-light);
    font-style: normal;
}

/* Footer */
.footer {
    background-color: var(--color-text);
    color: white;
    padding: var(--spacing-md);
    text-align: center;
    margin-top: var(--spacing-xl);
}

.footer p {
    margin: 0;
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --font-size-hero: 2rem;
        --font-size-xxl: 1.75rem;
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
    }
    
    .nav-container {
        flex-direction: column;
        justify-content: center;
        padding: var(--spacing-sm) var(--spacing-md);
        height: auto;
        min-height: var(--nav-height);
    }
    
    .site-title {
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-xs);
    }
    
    .nav-links {
        gap: var(--spacing-sm);
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-links a {
        font-size: var(--font-size-sm);
    }
    
    body {
        padding-top: calc(var(--nav-height) + 20px);
    }
    
    .photo-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--spacing-sm);
    }
    
    .albums-grid {
        grid-template-columns: 1fr;
    }
    
    .hero {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-description {
        font-size: var(--font-size-base);
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-hero: 1.5rem;
        --spacing-md: 1rem;
        --spacing-xl: 2rem;
    }
    
    .photo-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .section-intro {
        font-size: var(--font-size-base);
    }
    
    .about-content p {
        font-size: var(--font-size-base);
    }
}

/* Accessibility: Focus styles for keyboard navigation */
a:focus,
button:focus {
    outline: 3px solid var(--color-primary-light);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .navbar,
    .footer {
        display: none;
    }
    
    body {
        padding-top: 0;
    }
}