/* =============================================================
   YONDORE ONLINE — Main Stylesheet
   Color scheme: Copper / Aquamarine Dream
     #DCAA89  copper
     #30525C  dark teal
     #C35627  rust
     #D6794D  orange
     #4C848D  teal
     #BFB9B5  silver
   ============================================================= */

/* --- Custom Properties --- */
:root {
  --color-copper:     #DCAA89;
  --color-dark-teal:  #30525C;
  --color-rust:       #C35627;
  --color-orange:     #D6794D;
  --color-teal:       #4C848D;
  --color-silver:     #BFB9B5;

  /* Derived surface / background colours */
  --color-bg:         #111e24;
  --color-surface:    #1b2f38;
  --color-surface-2:  #243d47;
  --color-border:     #2d4d58;

  /* Text */
  --color-text:       #ede7df;
  --color-text-muted: #BFB9B5;
  --color-heading:    #DCAA89;

  /* Spacing */
  --sp-xs:  0.25rem;
  --sp-sm:  0.5rem;
  --sp-md:  1rem;
  --sp-lg:  1.5rem;
  --sp-xl:  2rem;
  --sp-2xl: 3rem;
  --sp-3xl: 5rem;

  /* Typography */
  --font-body:    Georgia, 'Palatino Linotype', Palatino, 'Times New Roman', serif;
  --font-heading: 'Palatino Linotype', 'Book Antiqua', Palatino, Georgia, 'Times New Roman', serif;

  /* Misc */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  14px;
  --transition: 0.2s ease;
  --nav-height: 3.75rem;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img, video, iframe {
  max-width: 100%;
  display: block;
}

ul, ol {
  padding-left: 1.4em;
}

p + p {
  margin-top: var(--sp-md);
}

/* --- Reduced-motion fallback --- */
@media (prefers-reduced-motion: no-preference) {
  main {
    animation: pageEnter 0.38s ease-out both;
  }
}

@keyframes pageEnter {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0);    }
}

/* CSS View Transitions – cross-fade between pages (modern browsers) */
@view-transition {
  navigation: auto;
}

::view-transition-old(root) {
  animation: 220ms ease-in viewFadeOut;
}
::view-transition-new(root) {
  animation: 320ms ease-out viewFadeIn;
}

@keyframes viewFadeOut {
  to { opacity: 0; }
}
@keyframes viewFadeIn {
  from { opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation: none;
  }
}

/* =============================================================
   ACCESSIBILITY
   ============================================================= */

/* Skip-to-content link */
.skip-nav {
  position: absolute;
  left: -9999px;
  top: var(--sp-sm);
  z-index: 9999;
  background: var(--color-rust);
  color: #fff;
  padding: var(--sp-sm) var(--sp-md);
  border-radius: var(--radius-sm);
  font-weight: bold;
  text-decoration: none;
}
.skip-nav:focus {
  left: var(--sp-sm);
}

/* Visible focus ring for all interactive elements */
:focus-visible {
  outline: 2px solid var(--color-copper);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* =============================================================
   TYPOGRAPHY
   ============================================================= */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-heading);
  line-height: 1.25;
}

a {
  color: var(--color-copper);
  text-underline-offset: 3px;
  transition: color var(--transition);
}
a:hover { color: #e8c9a8; }

/* =============================================================
   LAYOUT UTILITIES
   ============================================================= */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--sp-xl) var(--sp-lg);
}

.container--narrow {
  max-width: 820px;
  margin: 0 auto;
  padding: var(--sp-xl) var(--sp-lg);
}

main {
  flex: 1;
}

/* =============================================================
   SITE HEADER & NAV
   ============================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background-color: var(--color-dark-teal);
  border-bottom: 2px solid var(--color-copper);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--sp-lg);
  min-height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-md);
  flex-wrap: wrap;
}

/* Brand / logo */
.nav-brand {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: bold;
  letter-spacing: 0.12em;
  color: var(--color-copper);
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
  transition: color var(--transition);
}
.nav-brand:hover { color: #e8c9a8; }

/* Nav list */
.nav-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-xs);
  padding: var(--sp-xs) 0;
}

.nav-links a {
  display: block;
  color: var(--color-silver);
  text-decoration: none;
  padding: var(--sp-xs) var(--sp-sm);
  border-bottom: 2px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  transition: color var(--transition), background-color var(--transition);
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--color-copper);
  background-color: rgba(220, 170, 137, 0.12);
}

.nav-links a[aria-current="page"] {
  color: var(--color-copper);
  background-color: rgba(220, 170, 137, 0.1);
  border-bottom: 2px solid var(--color-copper);
}

/* =============================================================
   PAGE HERO (home)
   ============================================================= */

.hero {
  position: relative;
  text-align: center;
  padding: var(--sp-3xl) var(--sp-lg);
  background:
    radial-gradient(ellipse at 50% 70%, rgba(195, 86, 39, 0.18) 0%, transparent 65%),
    linear-gradient(180deg, #1b3d47 0%, var(--color-bg) 100%);
  border-bottom: 2px solid var(--color-copper);
  overflow: hidden;
}

/* Decorative corner ornaments */
.hero::before,
.hero::after {
  content: '❧';
  position: absolute;
  font-size: 3rem;
  color: rgba(220, 170, 137, 0.15);
  pointer-events: none;
}
.hero::before { top: var(--sp-xl); left: var(--sp-xl); }
.hero::after  { bottom: var(--sp-xl); right: var(--sp-xl); transform: scaleX(-1); }

.hero-title {
  font-size: clamp(3rem, 10vw, 7rem);
  letter-spacing: 0.2em;
  font-weight: bold;
  color: var(--color-copper);
  line-height: 1;
  margin-bottom: var(--sp-lg);
  text-shadow:
    2px 3px 0 var(--color-rust),
    5px 6px 14px rgba(0, 0, 0, 0.55),
    0 0 50px rgba(220, 170, 137, 0.3);
}

.hero-tagline {
  font-size: clamp(1rem, 3vw, 1.35rem);
  color: var(--color-silver);
  font-style: italic;
  margin: 0 auto var(--sp-xl);
  max-width: 580px;
}

.hero-cta {
  display: flex;
  gap: var(--sp-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* =============================================================
   PAGE HEADER (inner pages)
   ============================================================= */

.page-header {
  background: linear-gradient(180deg, #1b3d47 0%, var(--color-surface) 100%);
  border-bottom: 2px solid var(--color-copper);
  padding: var(--sp-2xl) var(--sp-lg);
  text-align: center;
}

.page-title {
  font-size: clamp(1.9rem, 5vw, 3.2rem);
  letter-spacing: 0.15em;
  color: var(--color-copper);
  text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.4);
  margin-bottom: var(--sp-xs);
}

.page-subtitle {
  color: var(--color-silver);
  font-style: italic;
  font-size: 1.05rem;
}

/* =============================================================
   BUTTONS
   ============================================================= */

.btn {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: bold;
  letter-spacing: 0.06em;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  padding: 0.5rem 1.5rem;
  cursor: pointer;
  transition:
    background-color var(--transition),
    border-color var(--transition),
    color var(--transition),
    box-shadow var(--transition);
}

.btn-primary {
  background-color: var(--color-rust);
  border-color: var(--color-rust);
  color: #fff;
}
.btn-primary:hover {
  background-color: var(--color-orange);
  border-color: var(--color-orange);
  color: #fff;
  box-shadow: 0 4px 14px rgba(195, 86, 39, 0.45);
}

.btn-secondary {
  background-color: transparent;
  border-color: var(--color-copper);
  color: var(--color-copper);
}
.btn-secondary:hover {
  background-color: rgba(220, 170, 137, 0.12);
  color: #e8c9a8;
  border-color: #e8c9a8;
}

/* =============================================================
   SECTION HEADING DECORATION
   ============================================================= */

.section-heading {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  font-size: 1.65rem;
  color: var(--color-copper);
  margin-bottom: var(--sp-lg);
}
.section-heading::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--color-copper), transparent);
}

.divider {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
  margin: var(--sp-xl) 0;
}

/* =============================================================
   CARDS
   ============================================================= */

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--sp-lg);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.card:hover {
  border-color: var(--color-copper);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
}

.card-icon {
  font-size: 1.6rem;
  margin-bottom: var(--sp-sm);
}

.card-title {
  font-size: 1.15rem;
  color: var(--color-copper);
  margin-bottom: var(--sp-sm);
}

.card-meta {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-bottom: var(--sp-sm);
}

/* =============================================================
   GRID LAYOUTS
   ============================================================= */

.grid-2 { display: grid; gap: var(--sp-lg); grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { display: grid; gap: var(--sp-lg); grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.grid-4 { display: grid; gap: var(--sp-md); grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }

/* =============================================================
   PLACEHOLDER / SKELETON BOXES
   ============================================================= */

.placeholder-box {
  background-color: var(--color-surface-2);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-xs);
  color: var(--color-text-muted);
  font-style: italic;
  font-size: 0.9rem;
  text-align: center;
  padding: var(--sp-md);
}

.placeholder-box--home-preview {
  position: relative;
  padding: 0;
  overflow: hidden;
}

.home-preview-media {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* =============================================================
   MEDIA GALLERY
   ============================================================= */

.gallery-grid {
  display: grid;
  gap: var(--sp-md);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

/* Large item spans 2 columns when space allows */
.gallery-item--wide {
  grid-column: span 2;
}

.gallery-item {
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.gallery-item:hover {
  border-color: var(--color-copper);
  box-shadow: 0 6px 22px rgba(0, 0, 0, 0.4);
}

.gallery-item .placeholder-box {
  border: none;
  border-radius: 0;
  aspect-ratio: 16 / 9;
  width: 100%;
}

.gallery-media {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
}

.gallery-caption {
  padding: var(--sp-sm) var(--sp-md);
  font-size: 0.88rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
}

/* Video placeholder */
.video-placeholder {
  position: relative;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-surface);
}
.video-placeholder .placeholder-box {
  aspect-ratio: 16 / 9;
  border: none;
  border-radius: 0;
  font-size: 1rem;
}
.video-play-icon {
  font-size: 3rem;
  color: var(--color-copper);
  margin-bottom: var(--sp-sm);
}

/* =============================================================
   UPDATE / DEV LOG POSTS
   ============================================================= */

.update-post {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-rust);
  border-radius: var(--radius-md);
  padding: var(--sp-lg);
  margin-bottom: var(--sp-lg);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.update-post:hover {
  border-color: var(--color-copper);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.update-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding: 2px 10px;
  border-radius: 100px;
  color: #fff;
  margin-bottom: var(--sp-sm);
  margin-right: var(--sp-xs);
}
.tag-feature { background-color: var(--color-teal); }
.tag-fix     { background-color: #6e5128; }
.tag-art     { background-color: #5c3d7a; }
.tag-design  { background-color: var(--color-dark-teal); border: 1px solid var(--color-copper); }

.update-post h3 {
  font-size: 1.25rem;
  margin-bottom: var(--sp-xs);
}
.update-post p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-top: var(--sp-sm);
}
.update-post .read-more {
  display: inline-block;
  margin-top: var(--sp-sm);
  font-size: 0.9rem;
  color: var(--color-copper);
}

.post-detail {
  max-width: 860px;
  margin: 0 auto;
}

.post-detail .post-body {
  display: grid;
  gap: var(--sp-lg);
}

.post-detail .post-body > * {
  margin: 0;
}

.post-detail .post-body p,
.post-detail .post-body li,
.post-detail .post-body blockquote {
  color: var(--color-text-muted);
  font-size: 1rem;
}

.post-detail .post-body h2,
.post-detail .post-body h3,
.post-detail .post-body h4,
.post-detail .post-body h5,
.post-detail .post-body h6 {
  color: var(--color-copper);
  margin-top: var(--sp-sm);
}

.post-detail .post-body ul,
.post-detail .post-body ol {
  padding-left: 1.4em;
  display: grid;
  gap: var(--sp-sm);
}

.post-detail .post-body li::marker {
  color: var(--color-copper);
}

.post-detail .post-figure {
  margin: 0;
  display: grid;
  gap: var(--sp-sm);
}

.post-detail .post-figure img {
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface-2);
}

.post-detail .post-figure figcaption {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.post-detail .post-quote {
  margin: 0;
  padding: var(--sp-md) var(--sp-lg);
  border-left: 4px solid var(--color-rust);
  background-color: rgba(255, 255, 255, 0.03);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.post-detail .post-quote cite {
  display: block;
  margin-top: var(--sp-sm);
  color: var(--color-silver);
  font-style: normal;
  font-size: 0.9rem;
}

/* Trello embed area */
.trello-embed-wrap {
  background-color: var(--color-surface);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.trello-embed-wrap iframe {
  width: 100%;
  height: 600px;
  border: none;
  display: block;
}
.trello-placeholder {
  padding: var(--sp-2xl) var(--sp-lg);
  text-align: center;
  color: var(--color-text-muted);
}
.trello-placeholder p { margin-top: var(--sp-sm); font-size: 0.9rem; }

/* =============================================================
   WIKI LAYOUT
   ============================================================= */

.wiki-layout {
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: var(--sp-xl);
  align-items: start;
  padding: var(--sp-xl) var(--sp-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.wiki-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + var(--sp-lg));
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--sp-md);
}

.wiki-sidebar h2 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
  margin-bottom: var(--sp-md);
}

.wiki-nav { list-style: none; padding: 0; }

.wiki-nav li + li { margin-top: 2px; }

.wiki-nav .wiki-category {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-orange);
  padding: var(--sp-sm) var(--sp-sm) var(--sp-xs);
  display: block;
  margin-top: var(--sp-sm);
}

.wiki-nav a {
  display: block;
  padding: 0.3rem var(--sp-sm);
  border-radius: var(--radius-sm);
  color: var(--color-silver);
  text-decoration: none;
  font-size: 0.92rem;
  transition: background-color var(--transition), color var(--transition);
}
.wiki-nav a:hover {
  background-color: rgba(220, 170, 137, 0.1);
  color: var(--color-copper);
}

.wiki-content h2 {
  font-size: 1.6rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--sp-xs);
  margin-bottom: var(--sp-lg);
  margin-top: var(--sp-xl);
  scroll-margin-top: calc(var(--nav-height) + var(--sp-lg));
}
.wiki-content h2:first-child { margin-top: 0; }

.wiki-content h3 {
  font-size: 1.15rem;
  color: var(--color-orange);
  margin-top: var(--sp-lg);
  margin-bottom: var(--sp-sm);
  scroll-margin-top: calc(var(--nav-height) + var(--sp-lg));
}

.wiki-content p { color: var(--color-text-muted); font-size: 0.96rem; }

.wiki-infobox {
  float: right;
  clear: right;
  width: 220px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--sp-md);
  margin: 0 0 var(--sp-md) var(--sp-lg);
  font-size: 0.88rem;
}
.wiki-infobox h4 {
  font-size: 0.88rem;
  color: var(--color-copper);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--sp-xs);
  margin-bottom: var(--sp-sm);
}
.wiki-infobox dl { display: grid; grid-template-columns: auto 1fr; gap: 4px var(--sp-sm); align-items: baseline; }
.wiki-infobox dt { color: var(--color-text-muted); }
.wiki-infobox dd { color: var(--color-text); }

/* =============================================================
   COMMUNITY CARDS
   ============================================================= */

.community-grid {
  display: grid;
  gap: var(--sp-lg);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.community-card {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-md);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--sp-lg);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.community-card:hover {
  border-color: var(--color-copper);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  transform: translateY(-2px);
  color: inherit;
}

.community-icon {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  background-color: var(--color-dark-teal);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
}

.community-card-body h3 {
  font-size: 1.1rem;
  color: var(--color-copper);
  margin-bottom: var(--sp-xs);
}
.community-card-body p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 0;
}
.community-card-body .card-cta {
  display: inline-block;
  margin-top: var(--sp-sm);
  font-size: 0.85rem;
  color: var(--color-orange);
  font-weight: bold;
}

/* =============================================================
   SITE FOOTER
   ============================================================= */

.site-footer {
  background-color: var(--color-dark-teal);
  border-top: 2px solid var(--color-copper);
  padding: var(--sp-xl) var(--sp-lg);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.88rem;
}
.site-footer a {
  color: var(--color-copper);
}
.site-footer p + p { margin-top: var(--sp-sm); }
.footer-links {
  display: flex;
  gap: var(--sp-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--sp-sm);
  list-style: none;
  padding: 0;
}

/* =============================================================
   RESPONSIVE DESIGN
   ============================================================= */

/* Tablet */
@media (max-width: 900px) {
  .wiki-layout {
    grid-template-columns: 1fr;
  }
  .wiki-sidebar {
    position: static;
  }
  .wiki-infobox {
    float: none;
    width: 100%;
    margin: 0 0 var(--sp-md) 0;
  }
  .gallery-item--wide {
    grid-column: span 1;
  }
}

/* Mobile */
@media (max-width: 640px) {
  :root {
    --nav-height: auto;
  }
  .nav-container {
    padding: var(--sp-sm) var(--sp-md);
    gap: var(--sp-sm);
    flex-wrap: wrap;
  }
  .nav-links {
    width: 100%;
    justify-content: center;
    border-top: 1px solid rgba(220, 170, 137, 0.15);
    padding-top: var(--sp-xs);
  }
  .nav-links a {
    font-size: 0.88rem;
  }
  .hero {
    padding: var(--sp-2xl) var(--sp-md);
  }
  .hero::before,
  .hero::after {
    display: none;
  }
  .container,
  .container--narrow {
    padding: var(--sp-lg) var(--sp-md);
  }
  .wiki-layout {
    padding: var(--sp-lg) var(--sp-md);
  }
}