@import url("https://fonts.googleapis.com/css2?family=Lexend:wght@300;400;600;800&display=swap");

/* ===========================================================================
   hgd-main.css
   Site-wide design system for hypergame.dev.
   Loaded BEFORE any page-specific CSS (index.css, tuts.css).

   Conventions:
   - All site-wide reusable classes are prefixed .hgd-
   - Legacy class names (.banner-card, .gallery-card, etc.) are kept as
     additional selectors on the same rules so existing markup/JS keeps
     working without changes.
   =========================================================================== */

/* ---------------------------------------------------------------------------
   Design tokens
   --------------------------------------------------------------------------- */

:root {
  /* Surface / background colors */
  --hgd-bg-page: #200e2e;
  --hgd-bg-page-alt: #301545;
  --hgd-surface-card: #2f1443;
  --hgd-surface-card-hover: #3a1a55;
  --hgd-surface-card-alert: #3d1650;
  --hgd-surface-card-inset: #1a0b28;
  --hgd-surface-blue: #162553;
  --hgd-surface-tab-inactive: #2a1040;

  /* Border colors */
  --hgd-border-purple: #705089;
  --hgd-border-purple-mid: #67436e;
  --hgd-border-purple-strong: #9599ff;

  /* Text colors */
  --hgd-text-primary: #e6e6e6;
  --hgd-text-muted: #c1b1c4;
  --hgd-text-dim: #ccc;
  --hgd-text-very-dim: #888;
  --hgd-text-on-light: #200e2e;

  /* Accent colors */
  --hgd-accent-pink: #fa61b9;
  --hgd-accent-pink-hover: #ff99dd;
  --hgd-accent-pink-rgb: 250, 97, 185;
  --hgd-accent-indigo: #9599ff;
  --hgd-accent-indigo-rgb: 149, 153, 255;

  /* Semantic colors */
  --hgd-danger: #c0392b;
  --hgd-danger-hover: #e74c3c;
  --hgd-success: #1a6b3c;
  --hgd-success-hover: #27a150;

  /* Radius */
  --hgd-radius-sm: 4px;
  --hgd-radius-md: 6px;
  --hgd-radius-lg: 8px;
  --hgd-radius-xl: 10px;

  /* Composite borders */
  --hgd-border-thin: 1px solid var(--hgd-border-purple);
  --hgd-border-card: 2px solid var(--hgd-border-purple);
  --hgd-border-strong: 2px solid var(--hgd-border-purple-strong);

  /* Transitions */
  --hgd-transition-card: border-color 0.2s, background 0.2s;

  /* Typography */
  --hgd-font-body: "Lexend", "Open Sans", sans-serif;
}

/* ---------------------------------------------------------------------------
   Card patterns
   .hgd-card           — default container card (mid-purple bg, purple border)
   .hgd-card-emphasis  — same colors, bigger padding + min-height for hero items
   .hgd-card-inset     — darker inset card (sits inside .hgd-card or used solo
                         for code blocks, secondary panels)
   .hgd-card-thumb     — smallest tile variant (compact clickable thumbnail)
   --------------------------------------------------------------------------- */

body {
  font-family: var(--hgd-font-body);
  letter-spacing: 0.05em;
}

.hgd-card,
.gallery-card {
  background: var(--hgd-surface-card);
  border: var(--hgd-border-card);
  border-radius: var(--hgd-radius-lg);
  color: var(--hgd-text-primary);
  padding: 1em;
  display: flex;
  flex-direction: column;
  gap: 0.75em;
  min-width: 0;
  overflow-wrap: break-word;
}

.hgd-card > h3,
.gallery-card > h3 {
  color: var(--hgd-accent-pink);
  font-size: 1.1em;
  margin: 0;
  text-align: center;
  font-weight: 600;
}

.hgd-card-emphasis,
.banner-card {
  background: var(--hgd-surface-card);
  border: var(--hgd-border-card);
  border-radius: var(--hgd-radius-lg);
  color: var(--hgd-text-primary);
  padding: 1.2em 1.5em;
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1em;
  cursor: pointer;
  transition: var(--hgd-transition-card);
  position: relative;
}

.hgd-card-emphasis:hover,
.banner-card:hover {
  background: var(--hgd-surface-card-hover);
  border-color: var(--hgd-accent-pink);
}

.hgd-card-emphasis.alert,
.banner-card.alert {
  background: var(--hgd-surface-card-alert);
  border-color: var(--hgd-accent-pink);
}

.hgd-card-inset,
.gallery-featured {
  background: var(--hgd-surface-card-inset);
  border: var(--hgd-border-card);
  border-radius: var(--hgd-radius-md);
  color: var(--hgd-text-primary);
  padding: 1em;
  transition: border-color 0.2s;
  position: relative;
  min-height: 160px;
  min-width: 0;
  overflow-wrap: break-word;
  cursor: pointer;
}

.hgd-card-inset:hover,
.gallery-featured:hover {
  border-color: var(--hgd-accent-pink);
}

.hgd-card-thumb,
.gallery-thumb {
  flex: 1;
  background: var(--hgd-surface-card-inset);
  border: var(--hgd-border-thin);
  border-radius: var(--hgd-radius-sm);
  padding: 0.5em;
  font-size: 0.72em;
  color: var(--hgd-text-dim);
  min-height: 60px;
  cursor: pointer;
  transition: border-color 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  position: relative;
}

.hgd-card-thumb:hover,
.gallery-thumb:hover {
  border-color: var(--hgd-accent-pink);
}

/* ---------------------------------------------------------------------------
   Arrow / "go" link
   Square button with a glyph (typically ▶), inset-card style.
   --------------------------------------------------------------------------- */

.hgd-arrow-link,
.gallery-arrow-link {
  flex: 0 0 auto;
  background: var(--hgd-surface-card-inset);
  border: var(--hgd-border-thin);
  border-radius: var(--hgd-radius-sm);
  padding: 0.5em 0.75em;
  color: var(--hgd-accent-indigo);
  font-size: 1.5em;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, color 0.2s;
}

.hgd-arrow-link:hover,
.gallery-arrow-link:hover {
  border-color: var(--hgd-accent-pink);
  color: var(--hgd-accent-pink);
  text-decoration: none;
}

/* ---------------------------------------------------------------------------
   Loading skeleton
   --------------------------------------------------------------------------- */

.hgd-skeleton-card,
.skeleton-card {
  background: var(--hgd-surface-tab-inactive);
  border-radius: var(--hgd-radius-lg);
  height: 120px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hgd-skeleton-card::after,
.skeleton-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0,
    rgba(149, 153, 255, 0.08) 50%,
    transparent 100%
  );
  animation: hgd-skeleton-sweep 1.6s infinite;
  pointer-events: none;
}

@keyframes hgd-skeleton-sweep {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* Legacy keyframe name kept for any existing references */
@keyframes skeleton-sweep {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* ---------------------------------------------------------------------------
   Collapsible details (FAQ items, expandable sections)
   Use with: <details class="hgd-details-collapse"><summary>...</summary>...</details>
   --------------------------------------------------------------------------- */

.hgd-details-collapse,
.qa-item {
  margin-bottom: 1.5em;
}

.hgd-details-collapse > summary,
.qa-item > summary {
  font-size: 1.35em;
  font-weight: 800;
  color: var(--hgd-text-primary);
  cursor: pointer;
  list-style: none;
  margin-bottom: 0.5em;
}

.hgd-details-collapse > summary::-webkit-details-marker,
.qa-item > summary::-webkit-details-marker {
  display: none;
}

.hgd-details-collapse > summary::before,
.qa-item > summary::before {
  content: "▶ ";
  font-size: 0.7em;
  color: var(--hgd-accent-indigo);
  display: inline-block;
  transition: transform 0.2s;
  margin-right: 8px;
}

.hgd-details-collapse[open] > summary::before,
.qa-item[open] > summary::before {
  transform: rotate(90deg);
}

/* ---------------------------------------------------------------------------
   Form labels
   --------------------------------------------------------------------------- */

.hgd-field-label,
.field-label {
  font-size: 20px;
  font-weight: 700;
  display: inline-block;
  margin-bottom: 8px;
  color: var(--hgd-text-primary);
}

/* ---------------------------------------------------------------------------
   Inline badge (pill / tag)
   --------------------------------------------------------------------------- */

.hgd-badge,
.public-badge {
  display: inline-block;
  font-size: 12px;
  background-color: #e83e8c;
  color: #fff;
  padding: 2px 6px;
  border-radius: var(--hgd-radius-sm);
  margin-left: 5px;
}

/* ---------------------------------------------------------------------------
   Bookmark / link card (external project links, embeds)
   --------------------------------------------------------------------------- */

.hgd-bookmark-card,
.bookmark-card {
  display: flex;
  align-items: stretch;
  background: var(--hgd-surface-card);
  border: var(--hgd-border-card);
  border-radius: var(--hgd-radius-xl);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: var(--hgd-transition-card), transform 0.15s;
  max-width: 640px;
}

.hgd-bookmark-card:hover,
.bookmark-card:hover {
  background: var(--hgd-surface-card-hover);
  border-color: var(--hgd-accent-pink);
  text-decoration: none;
}

.hgd-bookmark-card *,
.bookmark-card * {
  text-decoration: none;
}

.hgd-bookmark-card-image,
.bookmark-card-image {
  flex: 0 0 140px;
  background: var(--hgd-surface-card-inset);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hgd-bookmark-card-image img,
.bookmark-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hgd-bookmark-card-body,
.bookmark-card-body {
  flex: 1 1 auto;
  padding: 1em 1.2em;
  min-width: 0;
}

.hgd-bookmark-card-title,
.bookmark-card-title {
  font-weight: 800;
  color: #ffffff;
  font-size: 1.05em;
  margin-bottom: 0.3em;
}

.hgd-bookmark-card-description,
.bookmark-card-description {
  color: var(--hgd-text-muted);
  font-size: 0.92em;
  line-height: 1.5;
  margin-bottom: 0.5em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.hgd-bookmark-card-url,
.bookmark-card-url {
  color: var(--hgd-accent-indigo);
  font-size: 0.82em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------------------------------------------------------------------------
   Background utility classes
   --------------------------------------------------------------------------- */

.hgd-bg-purple,
.bg-purple {
  background-color: var(--hgd-bg-page-alt);
}

.hgd-bg-blue,
.bg-blue {
  background-color: var(--hgd-surface-blue);
}

/* ---------------------------------------------------------------------------
   Scrollbar
   --------------------------------------------------------------------------- */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background-color: rgba(var(--hgd-accent-pink-rgb), 0.5);
  border-radius: var(--hgd-radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background-color: rgba(var(--hgd-accent-pink-rgb), 0.8);
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(var(--hgd-accent-pink-rgb), 0.5) transparent;
}

/* ---------------------------------------------------------------------------
   Mobile
   --------------------------------------------------------------------------- */

@media (max-width: 736px) {
  .hgd-bookmark-card,
  .bookmark-card {
    flex-direction: column;
  }

  .hgd-bookmark-card-image,
  .bookmark-card-image {
    flex: 0 0 160px;
    width: 100%;
  }
}