/* ==========================================================================
   WORK / ARTWORK DETAIL PAGE STYLES — Udet Jasso Artist Portfolio
   ==========================================================================

   Styles for individual artwork pages (collections/[slug]/index.html).
   Each page presents a single artwork in detail with:

   1. A large main artwork image (clickable to open viewer)
   2. Metadata panel (title, metadata definition list, description)
   3. Previous/next artwork navigation
   4. A full-screen artwork viewer (lightbox) that cycles through
      the artwork's own images (main + detail views) via the
      previous / next arrows

   HTML structure:
   <main id="main-content">
     <section class="artwork-display">
       <button class="artwork-image-link" data-viewer-open>
         <img ...>
       </button>
     </section>
     <section class="artwork-info">
       <h1 class="artwork-title">...</h1>
       <dl class="artwork-meta">
         <div class="meta-item"><dt>...</dt><dd>...</dd></div>
       </dl>
       <div class="artwork-description"><p>...</p></div>
       <p class="artwork-availability">...</p>
       <nav class="artwork-nav">
         <a class="nav-prev">...</a>
         <a class="nav-next">...</a>
       </nav>
     </section>
   </main>

   Full-screen viewer (controlled by artwork-viewer.js):
   <div class="artwork-viewer">
     <div class="viewer-backdrop"></div>
     <div class="viewer-content">
       <img class="viewer-image">
       <div class="metadata-overlay">...</div>
       <button class="viewer-info-toggle">i</button>
       <button class="viewer-close">&times;</button>
       <button class="viewer-prev">&larr;</button>
       <button class="viewer-next">&rarr;</button>
     </div>
   </div>

   This file builds on top of css/styles.css which must be loaded first.
   ========================================================================== */


/* --------------------------------------------------------------------------
   SECTION 1: Main Artwork Display
   --------------------------------------------------------------------------
   The primary artwork image is displayed prominently at the top of the
   page. The entire section is clickable (a <button> wrapping the image)
   to open the full-screen viewer.
   -------------------------------------------------------------------------- */

.artwork-display {
   max-width: var(--max-width);
   margin: 0 auto;
   padding: var(--space-xl) var(--space-lg);
   position: relative;
   z-index: 1;
}

/* Clickable image wrapper button */
.artwork-image-link {
   display: flex;
   justify-content: center;
   align-items: center;
   width: 100%;
   background-color: rgba(0, 0, 0, 0.3);
   border: 1px solid var(--color-accent-primary);
   border-radius: var(--border-radius-lg);
   overflow: hidden;
   /* Maintain a reasonable minimum height while images are loading */
   min-height: 400px;
   cursor: pointer;
   padding: 0;
   transition: box-shadow var(--transition-speed) var(--transition-ease);
}

.artwork-image-link:hover {
   box-shadow: 0 0 30px rgba(216, 167, 177, 0.15);
}

/* The artwork image itself */
.artwork-image-link img {
   width: 100%;
   max-height: 75vh;     /* Don't let image exceed 75% of viewport height */
   object-fit: contain;   /* Show entire image without cropping */
}

/* --------------------------------------------------------------------------
   Page-Level Image Browser Arrows
   --------------------------------------------------------------------------
   Prev/next arrows beside the main artwork image that let visitors
   browse the artwork's other images (main + detail views) directly on
   the page, without opening the lightbox.  Hidden entirely by
   JavaScript when the artwork has only a single image.
   -------------------------------------------------------------------------- */

.display-prev,
.display-next {
   position: absolute;
   top: 50%;
   transform: translateY(-50%);
   width: 48px;
   height: 48px;
   display: flex;
   justify-content: center;
   align-items: center;
   color: var(--color-text);
   font-size: 1.5rem;
   cursor: pointer;
   z-index: 5;
   border-radius: 50%;
   background-color: rgba(26, 20, 35, 0.6);
   border: 1px solid var(--color-accent-primary);
   transition:
      background-color var(--transition-speed) var(--transition-ease),
      box-shadow var(--transition-speed) var(--transition-ease),
      transform var(--transition-speed) var(--transition-ease);
}

.display-prev:hover,
.display-next:hover {
   background-color: var(--color-accent-primary);
   box-shadow: 0 0 12px var(--color-pink-glow);
   transform: translateY(-50%) scale(1.1);
}

.display-prev:focus-visible,
.display-next:focus-visible {
   outline: 2px solid var(--color-text);
   outline-offset: 2px;
}

/* Previous button: left side */
.display-prev {
   left: var(--space-lg);
}

/* Next button: right side */
.display-next {
   right: var(--space-lg);
}

/* Disabled state — dimmed when at start/end of the image list */
.display-prev[disabled],
.display-next[disabled] {
   opacity: 0.3;
   cursor: not-allowed;
   pointer-events: none;
}


/* --------------------------------------------------------------------------
   SECTION 2: Artwork Information Panel
   --------------------------------------------------------------------------
   Below the main image, a panel displays the artwork's metadata:
   title, metadata grid, description, and availability.
   -------------------------------------------------------------------------- */

.artwork-info {
   max-width: var(--max-width-narrow);
   margin: var(--space-xl) auto;
   padding: var(--space-xl) var(--space-lg);
   background-color: var(--color-panel);
   border: 1px solid var(--color-accent-primary);
   border-radius: var(--border-radius-lg);
   box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}


/* --------------------------------------------------------------------------
   SECTION 3: Artwork Title
   --------------------------------------------------------------------------
   The artwork's title rendered in Metal Mania with a subtle text glow.
   -------------------------------------------------------------------------- */

.artwork-title {
   font-family: var(--font-heading);
   font-size: clamp(1.6rem, 3.5vw, 2.5rem);
   color: var(--color-text);
   margin-bottom: var(--space-lg);
   text-shadow: 0 0 15px rgba(216, 167, 177, 0.2);
   line-height: 1.2;
}


/* --------------------------------------------------------------------------
   SECTION 4: Metadata Definition List
   --------------------------------------------------------------------------
   Artwork metadata is displayed as a definition list (<dl>) with
   <div class="meta-item"> wrappers containing <dt> (label) and
   <dd> (value) pairs. Displayed in a flexible row layout.
   -------------------------------------------------------------------------- */

.artwork-meta {
   display: flex;
   flex-direction: column;
   gap: var(--space-md);
   margin-bottom: var(--space-xl);
   padding-bottom: var(--space-xl);
   border-bottom: 1px solid var(--color-accent-primary);
}

/* Each metadata row */
.meta-item {
   display: flex;
   gap: var(--space-md);
   align-items: baseline;
}

/* Field label (dt) — e.g., "Medium:", "Dimensions:" */
.meta-item dt {
   font-family: var(--font-body);
   font-size: 0.95rem;
   color: var(--color-text);
   opacity: 0.6;
   min-width: 120px;
   text-transform: uppercase;
   letter-spacing: 0.08em;
   font-variant: small-caps;
   flex-shrink: 0;
}

/* Field value (dd) */
.meta-item dd {
   font-family: var(--font-body);
   font-size: 1.05rem;
   color: var(--color-text);
}


/* --------------------------------------------------------------------------
   SECTION 5: Artwork Description
   --------------------------------------------------------------------------
   The descriptive text for the artwork, styled for comfortable reading.
   -------------------------------------------------------------------------- */

.artwork-description {
   margin-bottom: var(--space-lg);
}

.artwork-description p {
   font-family: var(--font-body);
   font-size: 1.05rem;
   line-height: 1.8;
   color: var(--color-text);
   opacity: 0.85;
}


/* --------------------------------------------------------------------------
   SECTION 6: Availability Notice
   --------------------------------------------------------------------------
   A small italicized note about the artwork's availability/pricing.
   -------------------------------------------------------------------------- */

.artwork-availability {
   font-family: var(--font-body);
   font-style: italic;
   font-size: 0.95rem;
   color: var(--color-text);
   opacity: 0.7;
   margin-bottom: var(--space-xl);
}


/* --------------------------------------------------------------------------
   SECTION 7: Artwork Navigation
   --------------------------------------------------------------------------
   Previous/next artwork links at the bottom of the info panel.
   Displayed as a flex row with space-between alignment.
   -------------------------------------------------------------------------- */

.artwork-nav {
   display: flex;
   justify-content: space-between;
   align-items: flex-start;
   padding-top: var(--space-lg);
   border-top: 1px solid var(--color-accent-primary);
   gap: var(--space-md);
}

.nav-prev,
.nav-next {
   font-family: var(--font-body);
   font-size: 1rem;
   color: var(--color-text);
   text-decoration: none;
   line-height: 1.5;
   transition:
      color var(--transition-speed) var(--transition-ease),
      text-shadow var(--transition-speed) var(--transition-ease);
}

.nav-prev:hover,
.nav-next:hover {
   color: var(--color-white);
   text-shadow: var(--glow-text-pink);
}

/* Right-align the "Next" link */
.nav-next {
   text-align: right;
}

/* The arrow character within the nav links */
.nav-arrow {
   font-size: 1.2rem;
}

/* The artwork title shown below the arrow */
.nav-link-title {
   display: block;
   font-size: 0.9rem;
   opacity: 0.8;
}

/* The category shown beside the title */
.nav-link-category {
   font-size: 0.85rem;
   opacity: 0.6;
}


/* --------------------------------------------------------------------------
   SECTION 8: Back to Gallery Close Button
   --------------------------------------------------------------------------
   Fixed X button pinned to the top-right, just below the sticky nav,
   that returns the visitor to the main gallery page
   (collections/index.html). z-index 999 keeps it below the nav (1000)
   and above page content, while the full-screen viewer (2000) covers
   it with its own close control.
   -------------------------------------------------------------------------- */

.artwork-close {
   position: fixed;
   top: calc(var(--nav-height) + var(--space-sm));
   right: var(--space-lg);
   z-index: 999;
   width: 44px;
   height: 44px;
   display: flex;
   justify-content: center;
   align-items: center;
   color: var(--color-text);
   font-size: 1.6rem;
   line-height: 1;
   text-decoration: none;
   border-radius: 50%;
   background-color: rgba(26, 20, 35, 0.6);
   border: 1px solid var(--color-accent-primary);
   transition:
      background-color var(--transition-speed) var(--transition-ease),
      box-shadow var(--transition-speed) var(--transition-ease);
}

.artwork-close:hover {
   background-color: var(--color-accent-primary);
   box-shadow: 0 0 12px var(--color-pink-glow);
}

.artwork-close:focus-visible {
   outline: 2px solid var(--color-text);
   outline-offset: 2px;
}


/* --------------------------------------------------------------------------
   SECTION 9: Full-Screen Artwork Viewer (Lightbox)
   --------------------------------------------------------------------------
   The viewer overlay covers the entire viewport when activated. It
   provides:
   - Dark backdrop (near-black, 0.95 opacity)
   - Artwork centered and maximized
   - Prev/Next navigation arrows
   - Metadata overlay panel
   - Close button
   - Keyboard navigation support

   z-index: 2000 places it above the nav (1000) and all other content.

   The viewer is hidden by default (display: none) and shown via
   JavaScript by adding the .active class.
   -------------------------------------------------------------------------- */

.artwork-viewer {
   position: fixed;
   inset: 0;
   z-index: 2000;
   /* Hidden by default — shown when .active is added by JavaScript */
   display: none;
   justify-content: center;
   align-items: center;
}

/* When the viewer is active/visible */
.artwork-viewer.active {
   display: flex;
}

/* Dark backdrop behind the viewer content */
.viewer-backdrop {
   position: absolute;
   inset: 0;
   background-color: rgba(0, 0, 0, 0.95);
}

/* Inner wrapper for the viewer content */
.viewer-content {
   position: relative;
   display: flex;
   justify-content: center;
   align-items: center;
   z-index: 2001;
   width: 100%;
   height: 100%;
   padding: var(--space-xl);
}

/* The artwork image in the viewer */
.viewer-image {
   max-width: 85vw;
   max-height: 85vh;
   object-fit: contain;
   border-radius: var(--border-radius);
   /* The signature dusty-pink glow around the artwork */
   box-shadow:
      0 0 40px rgba(216, 167, 177, 0.15),
      0 0 80px rgba(216, 167, 177, 0.05);
}

/* --------------------------------------------------------------------------
   SECTION 10: Viewer — Close Button
   --------------------------------------------------------------------------
   Top-right corner: an X button to dismiss the viewer.
   -------------------------------------------------------------------------- */

.viewer-close {
   position: absolute;
   top: var(--space-lg);
   right: var(--space-lg);
   width: 48px;
   height: 48px;
   display: flex;
   justify-content: center;
   align-items: center;
   color: var(--color-text);
   font-size: 2rem;
   cursor: pointer;
   z-index: 2002;        /* Above the artwork image */
   border-radius: 50%;
   background-color: rgba(26, 20, 35, 0.6);
   border: 1px solid var(--color-accent-primary);
   transition:
      background-color var(--transition-speed) var(--transition-ease),
      box-shadow var(--transition-speed) var(--transition-ease);
}

.viewer-close:hover {
   background-color: var(--color-accent-primary);
   box-shadow: 0 0 12px var(--color-pink-glow);
}

.viewer-close:focus-visible {
   outline: 2px solid var(--color-text);
   outline-offset: 2px;
}


/* --------------------------------------------------------------------------
   SECTION 11: Viewer — Navigation Arrows
   --------------------------------------------------------------------------
   Previous/Next buttons on the left and right sides of the viewer,
   vertically centered.
   -------------------------------------------------------------------------- */

.viewer-prev,
.viewer-next {
   position: absolute;
   top: 50%;
   transform: translateY(-50%);
   width: 48px;
   height: 48px;
   display: flex;
   justify-content: center;
   align-items: center;
   color: var(--color-text);
   font-size: 1.5rem;
   cursor: pointer;
   z-index: 2002;
   border-radius: 50%;
   background-color: rgba(26, 20, 35, 0.6);
   border: 1px solid var(--color-accent-primary);
   transition:
      background-color var(--transition-speed) var(--transition-ease),
      box-shadow var(--transition-speed) var(--transition-ease),
      transform var(--transition-speed) var(--transition-ease);
}

.viewer-prev:hover,
.viewer-next:hover {
   background-color: var(--color-accent-primary);
   box-shadow: 0 0 12px var(--color-pink-glow);
   transform: translateY(-50%) scale(1.1);
}

.viewer-prev:focus-visible,
.viewer-next:focus-visible {
   outline: 2px solid var(--color-text);
   outline-offset: 2px;
}

/* Previous button: left side */
.viewer-prev {
   left: var(--space-lg);
}

/* Next button: right side */
.viewer-next {
   right: var(--space-lg);
}

/* Disabled state — dimmed when at start/end of list */
.viewer-prev[disabled],
.viewer-next[disabled] {
   opacity: 0.3;
   cursor: not-allowed;
   pointer-events: none;
}


/* --------------------------------------------------------------------------
   SECTION 12: Viewer — Info Toggle Button
   --------------------------------------------------------------------------
   Button to show/hide the metadata overlay in the viewer.
   Positioned at the bottom-right.
   -------------------------------------------------------------------------- */

.viewer-info-toggle {
   position: absolute;
   bottom: var(--space-lg);
   right: var(--space-lg);
   width: 40px;
   height: 40px;
   display: flex;
   justify-content: center;
   align-items: center;
   color: var(--color-text);
   font-size: 1.2rem;
   font-family: var(--font-body);
   font-weight: 700;
   font-style: italic;
   cursor: pointer;
   z-index: 2002;
   border-radius: 50%;
   background-color: rgba(26, 20, 35, 0.6);
   border: 1px solid var(--color-accent-primary);
   transition:
      background-color var(--transition-speed) var(--transition-ease),
      box-shadow var(--transition-speed) var(--transition-ease);
}

.viewer-info-toggle:hover {
   background-color: var(--color-accent-primary);
   box-shadow: 0 0 12px var(--color-pink-glow);
}

.viewer-info-toggle:focus-visible {
   outline: 2px solid var(--color-text);
   outline-offset: 2px;
}


/* --------------------------------------------------------------------------
   SECTION 13: Viewer — Metadata Overlay
   --------------------------------------------------------------------------
   A translucent panel at the bottom center of the viewer showing
   artwork info. Toggled only by the info button.
   Hidden by default; shown via the .visible class.
   -------------------------------------------------------------------------- */

.metadata-overlay {
   position: absolute;
   bottom: var(--space-xl);
   left: 50%;
   transform: translateX(-50%);
   background-color: var(--color-panel);
   border: 1px solid var(--color-accent-primary);
   border-radius: var(--border-radius-lg);
   padding: var(--space-lg) var(--space-xl);
   max-width: 600px;
   width: calc(100% - var(--space-2xl));
   z-index: 2002;
   color: var(--color-text);
   /* Initially hidden — toggled via .visible class */
   opacity: 0;
   visibility: hidden;
   transition:
      opacity var(--transition-speed) var(--transition-ease),
      visibility var(--transition-speed) var(--transition-ease);
}

.metadata-overlay.visible {
   opacity: 1;
   visibility: visible;
}

/* Title inside the metadata overlay */
.viewer-title {
   font-family: var(--font-heading);
   font-size: 1.4rem;
   margin-bottom: var(--space-sm);
}

/* Metadata text lines (artist, year, medium, etc.) */
.viewer-artist,
.viewer-year,
.viewer-medium,
.viewer-dimensions,
.viewer-category,
.viewer-description {
   font-family: var(--font-body);
   font-size: 0.95rem;
   line-height: 1.6;
   opacity: 0.8;
}

.viewer-description {
   margin-top: var(--space-sm);
   opacity: 0.7;
   font-style: italic;
}


/* --------------------------------------------------------------------------
   SECTION 14: Scroll Lock when Viewer is Open
   --------------------------------------------------------------------------
   When the viewer is open, body scroll is locked to prevent background
   content from scrolling.
   -------------------------------------------------------------------------- */

body.viewer-open {
   overflow: hidden;
}


/* --------------------------------------------------------------------------
   SECTION 15: Responsive Layout
   -------------------------------------------------------------------------- */

/* ---- Tablet (768px) ---- */
@media screen and (max-width: 768px) {
   .artwork-display {
      padding: var(--space-lg) var(--space-md);
   }

   .artwork-image-link {
      min-height: 300px;
   }

   .artwork-info {
      padding: var(--space-lg) var(--space-md);
      margin: var(--space-lg) var(--space-md);
   }

   .meta-item {
      flex-direction: column;
      gap: var(--space-xs);
   }

   .meta-item dt {
      min-width: 0;
   }

   /* Viewer adjustments */
   .viewer-image {
      max-width: 90vw;
      max-height: 80vh;
   }

   .display-prev,
   .display-next,
   .viewer-prev,
   .viewer-next {
      width: 40px;
      height: 40px;
      font-size: 1.2rem;
   }

   .display-prev,
   .viewer-prev {
      left: var(--space-sm);
   }

   .display-next,
   .viewer-next {
      right: var(--space-sm);
   }
}

/* ---- Small mobile (480px) ---- */
@media screen and (max-width: 480px) {
   .artwork-image-link {
      min-height: 250px;
      border-radius: var(--border-radius);
   }

   .artwork-title {
      font-size: 1.4rem;
   }

   .artwork-info {
      padding: var(--space-md);
      margin: var(--space-md) var(--space-sm);
   }

   .viewer-close {
      top: var(--space-sm);
      right: var(--space-sm);
   }

   .artwork-close {
      width: 40px;
      height: 40px;
      right: var(--space-md);
      font-size: 1.4rem;
   }

   .metadata-overlay {
      bottom: var(--space-md);
   }

   .artwork-nav {
      flex-direction: column;
      gap: var(--space-lg);
   }

   /* Right-align the "Next" link when stacked */
   .nav-next {
      text-align: left;
   }
}


/* --------------------------------------------------------------------------
   SECTION 16: prefers-reduced-motion
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
   .display-prev:hover,
   .display-next:hover,
   .viewer-prev:hover,
   .viewer-next:hover {
      transform: translateY(-50%);
   }

   .artwork-image-link,
   .display-prev,
   .display-next,
   .artwork-close,
   .viewer-close,
   .viewer-prev,
   .viewer-next,
   .viewer-info-toggle,
   .metadata-overlay {
      transition: none;
   }
}