/* ==========================================================================
   PRESIDENCY ACADEMY - SINGLE GALLERY STYLESHEET
   File: gallery-single.css
   Target: single-gallery.php
   Theme: Blocksy Child
   Description: Premium production-ready CSS for single gallery posts.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS VARIABLES & BASE TOKENS
   -------------------------------------------------------------------------- */
:root {
    --primary: #4B3427;
    --accent: #C9973E;
    --bg: #F9F7F3;
    --white: #ffffff;
    --text: #2E2E2E;
    --text-light: #666666;
    --border: #E6E1DA;
    --radius: 18px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 18px 45px rgba(0, 0, 0, 0.12);
    --transition: 0.35s ease;
    
    /* Typography */
    --font-heading: 'Poppins', system-ui, sans-serif;
    --font-body: 'Inter', system-ui, sans-serif;
}

/* Base resets specifically scoped to the single gallery page to avoid conflicts */
.pa-single-gallery-page {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.pa-single-gallery-page *,
.pa-single-gallery-page *::before,
.pa-single-gallery-page *::after {
    box-sizing: border-box;
}

/* --------------------------------------------------------------------------
   2. HERO SECTION
   -------------------------------------------------------------------------- */
.pa-single-hero {
    position: relative;
    width: 100%;
    height: 420px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-color: var(--primary);
    text-align: center;
    padding: 0 24px;
    z-index: 1;
}

.pa-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(75, 52, 39, 0.6), rgba(0, 0, 0, 0.85));
    z-index: -1;
}

.pa-hero-content-wrap {
    position: relative;
    z-index: 2;
    max-width: 1000px;
    width: 100%;
}

.pa-hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--white);
    margin: 0 0 12px 0;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.pa-hero-meta {
    font-size: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* --------------------------------------------------------------------------
   3. MAIN CONTAINER & BREADCRUMB
   -------------------------------------------------------------------------- */
.pa-single-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px 60px;
}

.pa-breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: var(--text-light);
    margin: 24px 0 40px;
}

.pa-breadcrumb a {
    color: var(--primary);
    font-weight: 500;
    text-decoration: none;
    transition: color var(--transition);
}

.pa-breadcrumb a:hover,
.pa-breadcrumb a:focus-visible {
    color: var(--accent);
    outline: none;
}

.pa-breadcrumb .pa-sep {
    color: #D1C9C0;
    font-size: 12px;
}

/* --------------------------------------------------------------------------
   4. FEATURED IMAGE (Updated: Preserves Original Image Ratio without Cropping)
   -------------------------------------------------------------------------- */
.pa-article-featured-image {
    width: 100%;
    max-width: 960px;
    margin: 0 auto 40px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    background-color: #EFECE6;
    /* Removed max-height and fixed aspect-ratio */
}

.pa-article-featured-image .pa-responsive-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain; /* Ensures full image visibility */
    transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.pa-article-featured-image:hover .pa-responsive-img {
    transform: scale(1.03);
}

/* --------------------------------------------------------------------------
   5. CONTENT AREA & NATIVE GALLERY BLOCK STYLING
   -------------------------------------------------------------------------- */
.pa-article-content {
    max-width: 850px; 
    margin: 0 auto;
    font-size: 17px;
    line-height: 1.8;
    color: var(--text);
}

/* Gutenberg Core Blocks */
.pa-article-content p { margin: 0 0 1.5em 0; }

.pa-article-content h2,
.pa-article-content h3,
.pa-article-content h4 {
    font-family: var(--font-heading);
    color: var(--primary);
    font-weight: 600;
    margin: 2em 0 1em 0;
    line-height: 1.3;
}

.pa-article-content h2 { font-size: clamp(1.6rem, 3vw, 2rem); }
.pa-article-content h3 { font-size: clamp(1.4rem, 2.5vw, 1.6rem); }
.pa-article-content h4 { font-size: 1.25rem; }

/* Native WordPress Gallery Block Styling */
.pa-article-content .wp-block-gallery,
.pa-article-content .blocks-gallery-grid {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important;
    gap: 16px !important;
    margin: 40px 0 !important;
    padding: 0 !important;
    list-style: none !important;
}

.pa-article-content .wp-block-image,
.pa-article-content .blocks-gallery-item {
    margin: 0 !important;
    width: 100% !important;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    background-color: #EFECE6;
}

.pa-article-content .wp-block-image img,
.pa-article-content .blocks-gallery-item img {
    width: 100% !important;
    height: 100% !important;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    display: block;
    cursor: zoom-in; 
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.pa-article-content .wp-block-image img:hover,
.pa-article-content .blocks-gallery-item img:hover {
    transform: scale(1.05);
}

.pa-article-content .wp-block-gallery figcaption {
    display: none; 
}

/* General Typography & Elements */
.pa-article-content a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 4px;
    transition: color var(--transition);
}
.pa-article-content a:hover { color: var(--primary); }
.pa-article-content ul, .pa-article-content ol { margin: 0 0 1.5em 0; padding-left: 1.5em; }
.pa-article-content li { margin-bottom: 0.5em; }
.pa-article-content ul li::marker { color: var(--accent); }

/* Blockquotes */
.pa-article-content blockquote {
    margin: 2em 0;
    padding: 1.5em 2em;
    border-left: 4px solid var(--accent);
    background-color: var(--white);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03);
    border-radius: 0 var(--radius) var(--radius) 0;
    font-style: italic;
    font-size: 1.15em;
    color: var(--primary);
}

.pa-article-content blockquote p:last-child {
    margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   6. COMPACT SHARE SECTION
   -------------------------------------------------------------------------- */
.pa-share-section {
    max-width: 850px;
    margin: 60px auto 40px;
    padding: 24px;
    background-color: var(--white);
    border-radius: var(--radius);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.04);
    text-align: center;
}

.pa-share-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    color: var(--primary);
    margin: 0 0 16px 0;
    font-weight: 600;
}

.pa-share-buttons {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

.pa-share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 13.5px;
    color: var(--white);
    background-color: var(--text-light);
    border-radius: 30px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition);
}

.pa-share-btn:hover,
.pa-share-btn:focus-visible {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
    color: var(--white);
    outline: none;
}

.pa-share-btn:focus-visible {
    box-shadow: 0 0 0 3px var(--accent);
}

/* Specific Brands */
.pa-share-fb { background-color: #1877F2; }
.pa-share-wa { background-color: #25D366; }
.pa-share-x { background-color: #000000; }
.pa-share-copy { background-color: var(--primary); }

/* --------------------------------------------------------------------------
   7. POST NAVIGATION & RELATED (3 COLUMNS)
   -------------------------------------------------------------------------- */
.pa-post-navigation {
    max-width: 850px;
    margin: 0 auto 60px;
    border-top: 1px solid var(--border);
    padding-top: 40px;
}

.pa-nav-links {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.pa-nav-previous, .pa-nav-next {
    flex: 1;
    min-width: 260px;
}

.pa-post-navigation a {
    display: flex;
    justify-content: center;
    padding: 16px;
    background-color: var(--white);
    border-radius: var(--radius);
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
    color: var(--primary);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    text-align: center;
    transition: all var(--transition);
}

.pa-post-navigation a:hover,
.pa-post-navigation a:focus-visible {
    background-color: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    outline: none;
}

/* Related Galleries */
.pa-related-galleries {
    margin: 60px 0;
}

.pa-related-title {
    font-family: var(--font-heading);
    font-size: clamp(1.4rem, 3vw, 1.8rem);
    color: var(--primary);
    font-weight: 700;
    text-align: center;
    margin: 0 0 32px 0;
}

.pa-related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.pa-related-card {
    background-color: var(--white);
    border-radius: var(--radius);
    box-shadow: 0 5px 20px rgba(0,0,0,0.04);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: transform var(--transition), box-shadow var(--transition);
}

.pa-related-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.pa-related-link {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    height: 100%;
    outline: none;
}

.pa-related-link:focus-visible {
    box-shadow: 0 0 0 3px var(--accent);
    border-radius: var(--radius);
}

.pa-related-image-wrap {
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    position: relative;
    background-color: var(--bg);
}

.pa-related-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s ease;
}

.pa-related-card:hover .pa-related-img {
    transform: scale(1.06);
}

.pa-related-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.pa-related-heading {
    font-family: var(--font-heading);
    font-size: 15.5px;
    font-weight: 600;
    color: var(--primary);
    margin: 0 0 8px 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition);
}

.pa-related-card:hover .pa-related-heading {
    color: var(--accent);
}

.pa-related-date {
    font-size: 13px;
    color: var(--text-light);
}

/* Empty Placeholder for Missing Image */
.pa-gallery-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #F0EAE1 0%, #E2D9CD 100%);
}

/* --------------------------------------------------------------------------
   8. BACK BUTTON
   -------------------------------------------------------------------------- */
.pa-back-btn-wrapper {
    text-align: center;
    margin: 40px 0 20px;
}

.pa-back-to-gallery-btn {
    display: inline-flex;
    padding: 14px 32px;
    background-color: var(--primary);
    color: var(--white);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 14.5px;
    border-radius: 30px;
    text-decoration: none;
    transition: all var(--transition);
}

.pa-back-to-gallery-btn:hover,
.pa-back-to-gallery-btn:focus-visible {
    background-color: var(--accent);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(201, 151, 62, 0.3);
    outline: none;
}

/* --------------------------------------------------------------------------
   9. DYNAMIC JS CLASSES & ANIMATIONS
   -------------------------------------------------------------------------- */
/* Scroll Reveal Animation Classes */
.js-reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s cubic-bezier(0.25, 0.8, 0.25, 1), transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.js-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Back To Top Button Styles */
.pa-back-to-top {
    opacity: 0;
    visibility: hidden;
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 999;
    width: 44px;
    height: 44px;
    border: none;
    border-radius: 50%;
    background-color: var(--primary);
    color: var(--white);
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease, background-color 0.3s ease;
    transform: translateY(20px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.pa-back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.pa-back-to-top:hover {
    background-color: var(--accent);
    transform: translateY(-3px); /* Hover lift effect */
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

/* --------------------------------------------------------------------------
   10. RESPONSIVE BREAKPOINTS
   -------------------------------------------------------------------------- */
/* Extra Large Devices */
@media (max-width: 1400px) {
    .pa-related-grid {
        gap: 20px;
    }
}

/* Large Devices (Desktops) */
@media (max-width: 1200px) {
    .pa-single-container {
        padding: 0 20px 60px;
    }
}

/* Medium Devices (Tablets Landscape) */
@media (max-width: 992px) {
    .pa-single-hero {
        height: 340px; 
        padding: 0 20px;
    }
    
    .pa-article-content .wp-block-gallery,
    .pa-article-content .blocks-gallery-grid {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 12px !important;
    }

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

/* Small Devices (Tablets Portrait) */
@media (max-width: 768px) {
    .pa-single-hero {
        height: 300px; 
    }

    .pa-article-featured-image {
        border-radius: 12px;
        margin-bottom: 24px;
    }

    .pa-article-content {
        font-size: 16px;
    }

    .pa-article-content blockquote {
        padding: 1.2em 1.5em;
        margin: 1.5em 0;
    }

    .pa-article-content .wp-block-gallery,
    .pa-article-content .blocks-gallery-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        margin: 32px 0 !important;
    }
    
    .pa-share-section {
        padding: 20px;
        margin: 40px auto 30px;
    }

    .pa-nav-links {
        gap: 16px;
    }
    
    .pa-nav-previous,
    .pa-nav-next {
        min-width: 100%;
    }
}

/* Extra Small Devices (Mobile Phones) */
@media (max-width: 576px) {
    .pa-single-hero {
        height: 280px;
    }

    .pa-article-heading {
        margin-bottom: 12px;
    }
    
    .pa-breadcrumb {
        margin: 16px 0 24px;
        font-size: 12.5px;
    }

    .pa-related-grid {
        grid-template-columns: 1fr; /* 1 Column Mobile */
    }

    .pa-share-buttons {
        flex-direction: column;
    }
    
    .pa-share-buttons li {
        width: 100%;
    }

    .pa-share-btn {
        width: 100%;
    }
}

/* Tiny Screens */
@media (max-width: 375px) {
    .pa-single-hero {
        padding: 60px 16px;
    }

    .pa-article-content {
        font-size: 15px;
    }
}