/* ATARI SF STRATEGY DASHBOARD — Retro Computing Aesthetic, Amber-on-Dark */

:root,
[data-theme='light'] {
  --hero-bg: url('hero-bg-light.png');

  --hero-filter: none;
  --color-bg: #f8f5f0;
  --color-surface: #fefcf8;
  --color-surface-2: #f2ede4;
  --color-surface-offset: #e8e2d6;
  --color-border: #d4cec2;
  --color-divider: #e0dad0;
  --color-text: #1a1510;
  --color-text-muted: #5c5244;
  --color-text-faint: #9b9080;
  --color-primary: #b85c00;
  --color-primary-2: #d97706;
  --color-accent: #d4a017;
  --color-success: #1a7a1a;
  --color-error: #b91c1c;
  --color-warning: #b85c00;
  --shadow-sm: 0 1px 3px rgba(15,10,0,0.06);
  --shadow-md: 0 4px 12px rgba(15,10,0,0.08);
}

[data-theme='dark'] {
  --hero-bg: url('hero-bg-dark.png');
  --hero-filter: none;
  --color-bg: #0d0b08;
  --color-surface: #161310;
  --color-surface-2: #1e1a15;
  --color-surface-offset: #26221b;
  --color-border: #332e25;
  --color-divider: #2a251e;
  --color-text: #f0e8d0;
  --color-text-muted: #a89870;
  --color-text-faint: #6b5e44;
  --color-primary: #f5a623;
  --color-primary-2: #fbbf24;
  --color-accent: #d4a017;
  --color-success: #4ade80;
  --color-error: #f87171;
  --color-warning: #f5a623;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.5);
} 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  transition: background 0.25s ease, color 0.25s ease;
}

body::before {
  content: '';
  position: fixed; inset: 0; z-index: -1;
  background-image: var(--hero-bg);
  background-size: cover; background-position: top center; background-repeat: no-repeat;
  background-attachment: scroll;
  filter: var(--hero-filter, none);
  opacity: 0.3;
  transition: filter 0.25s ease, opacity 0.25s ease;
}

h1, h2, h3 { line-height: 1.2; text-wrap: balance; }
a { color: var(--color-primary); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--color-primary-2); }
button { cursor: pointer; font: inherit; color: inherit; background: none; border: none; }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: 3px; }
code { font-family: 'JetBrains Mono', monospace; font-size: 0.85em; background: var(--color-surface-2); padding: 0.1em 0.3em; border-radius: 3px; }

/* --- Topbar --- */
.topbar { background: var(--color-surface); border-bottom: 1px solid var(--color-border); position: static; }
.topbar-inner { max-width: 1100px; margin: 0 auto; padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-icon { width: 36px; height: 36px; color: var(--color-primary); flex-shrink: 0; }
.brand h1 { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.02em; }
.subtitle { font-size: 0.78rem; color: var(--color-text-muted); }
.last-updated { font-size: 0.72rem; color: var(--color-text-faint); font-family: 'JetBrains Mono', monospace; white-space: nowrap; }

/* --- Navbar --- */
.navbar { background: var(--color-surface-2); border-bottom: 1px solid var(--color-border); position: sticky; top: 0; z-index: 60; }
.navbar-inner { max-width: 1100px; margin: 0 auto; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; min-height: 46px; }
.nav-menu { display: flex; align-items: center; flex: 1; justify-content: space-between; }
.nav-links { display: flex; list-style: none; gap: 4px; flex-shrink: 0; }
.topbar-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.topbar-actions .refresh-btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: 6px;
  border: 1px solid var(--color-border); background: var(--color-surface); color: var(--color-text);
  font-size: 0.78rem; transition: background 0.15s;
}
.topbar-actions .refresh-btn:hover { background: var(--color-primary); color: #fff; }
.topbar-actions [data-theme-toggle] { background: none; border: none; color: var(--color-text-muted); cursor: pointer; padding: 4px; }
.topbar-actions [data-theme-toggle]:hover { color: var(--color-primary); }
.nav-links a {
  display: inline-flex; align-items: center; gap: 7px; padding: 8px 12px; border-radius: 6px;
  font-size: 0.8rem; font-weight: 500; color: var(--color-text-muted); text-decoration: none;
  white-space: nowrap; transition: color 0.15s, background 0.15s;
}
.nav-links a:hover, .nav-links a.active { color: var(--color-primary); background: var(--color-surface); }

.hamburger { display: none; flex-direction: column; justify-content: center; gap: 4px; width: 38px; height: 38px; padding: 8px; }
.hamburger span { display: block; height: 2px; width: 100%; background: var(--color-text); border-radius: 2px; transition: transform 0.2s, opacity 0.2s; }
.hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
section[id] { scroll-margin-top: 70px; }

@media (max-width: 900px) {
  .hamburger { display: flex; }
  .nav-menu { position: absolute; top: 46px; left: 0; right: 0; flex-direction: column; background: var(--color-surface); border-bottom: 1px solid var(--color-border); padding: 8px 12px; transform: translateY(-200%); transition: transform 300ms ease; z-index: 99; }
  .nav-menu.open { transform: translateY(0); }
  .nav-links { flex-direction: column; gap: 2px; }
  .nav-links a { padding: 10px 12px; }
  
}

/* --- Container --- */
.container { max-width: 1100px; margin: 0 auto; padding: 24px 20px 60px; display: flex; flex-direction: column; gap: 28px; }

/* --- Section Head --- */
.section-head { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 16px; }
.q-num {
  width: 34px; height: 34px; border-radius: 8px; flex-shrink: 0;
  background: color-mix(in srgb, var(--color-primary) 50%, #0b0f14); color: #fff; font-weight: 700; font-size: 0.82rem;
  display: flex; align-items: center; justify-content: center;
  font-family: 'JetBrains Mono', monospace;
}
.section-head h2 { font-size: 1.12rem; font-weight: 700; }
.card-note { font-size: 0.76rem; color: var(--color-text-faint); }

/* --- Lead --- */
.lead-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary); border-radius: 10px; padding: 28px; box-shadow: var(--shadow-sm);
}
.lead-badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 0.7rem; font-weight: 600; background: rgba(245, 166, 35, 0.12); color: var(--color-primary); margin-bottom: 12px; }
.lead-card h2 { font-size: 1.45rem; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 8px; }
.lead-subhead { color: var(--color-text-muted); font-size: 0.98rem; margin-bottom: 16px; line-height: 1.55; }
.pullquote { border-left: 3px solid var(--color-primary); padding: 10px 16px; font-size: 0.88rem; color: var(--color-text-muted); font-style: italic; line-height: 1.55; }

/* --- Games Grid --- */
.games-grid { display: flex; flex-direction: column; gap: 16px; }
.game-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 10px; padding: 22px; box-shadow: var(--shadow-sm);
}
.game-header { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.game-header h3 { font-size: 1.15rem; font-weight: 700; }
.game-meta { display: flex; flex-wrap: wrap; gap: 8px; font-size: 0.76rem; color: var(--color-text-muted); }
.game-meta span { padding: 2px 8px; border-radius: 999px; background: var(--color-surface-offset); }
.game-body { margin-bottom: 12px; }
.game-body .game-left { float: left; width: 200px; margin-right: 20px; margin-bottom: 8px; }
.game-intro { overflow: hidden; min-width: 0; }
.game-intro p { font-size: 0.88rem; line-height: 1.5; font-weight: 500; color: var(--color-text); margin-bottom: 8px; }
.game-body .game-detail { color: var(--color-text-muted); font-size: 0.8rem; line-height: 1.55; }
.game-tech { clear: left; padding-top: 10px; color: var(--color-text-muted); font-size: 0.8rem; line-height: 1.55; }
.game-logo {
  width: 200px; height: 280px; object-fit: cover; display: block; border-radius: 6px;
  border: 1px solid var(--color-border); margin-top: 0;
  image-rendering: auto; box-shadow: var(--shadow-sm);
  background: var(--color-surface-offset);
}
@media (max-width: 640px) { .game-body .game-left { float: none; width: auto; margin-right: 0; } }
.game-themes { display: flex; flex-wrap: wrap; gap: 4px; }
.game-themes span { font-size: 0.68rem; font-weight: 600; padding: 2px 6px; border-radius: 4px; background: rgba(245, 166, 35, 0.08); color: var(--color-warning); text-transform: uppercase; letter-spacing: 0.03em; }

/* --- Platforms --- */
.platforms-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.platform-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 10px; padding: 18px; box-shadow: var(--shadow-sm);
}
.platform-card h3 { font-size: 1rem; font-weight: 700; color: var(--color-primary); }
.platform-year { font-size: 0.72rem; color: var(--color-text-faint); margin-bottom: 8px; }
.platform-specs { font-size: 0.78rem; color: var(--color-text-muted); line-height: 1.5; margin-bottom: 8px; font-family: 'JetBrains Mono', monospace; }
.platform-strength, .platform-weakness { font-size: 0.8rem; line-height: 1.5; margin-bottom: 6px; }
.platform-strength::before { content: '+ '; color: var(--color-success); font-weight: 700; }
.platform-weakness::before { content: '- '; color: var(--color-error); font-weight: 700; }

/* --- Design Grid --- */
.design-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.design-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 10px; padding: 20px; box-shadow: var(--shadow-sm);
}
.design-card h3 { font-size: 0.92rem; font-weight: 700; color: var(--color-primary); margin-bottom: 4px; }
.design-quote { font-size: 0.8rem; color: var(--color-text-muted); font-style: italic; line-height: 1.5; padding: 8px 12px; background: var(--color-surface-2); border-radius: 6px; margin: 8px 0; border-left: 3px solid var(--color-accent); }
.design-arg { font-size: 0.82rem; color: var(--color-text); line-height: 1.5; }

/* --- Context --- */
.context-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.context-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 10px; padding: 20px; box-shadow: var(--shadow-sm);
}
.context-card h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 4px; }
.context-games { font-size: 0.7rem; color: var(--color-text-faint); margin-bottom: 8px; }
.context-desc { font-size: 0.82rem; color: var(--color-text); line-height: 1.5; }

/* --- Remakes --- */
.remakes-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.remake-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 10px; padding: 20px; box-shadow: var(--shadow-sm);
}
.remake-card h3 { font-size: 1rem; font-weight: 700; color: var(--color-primary); }
.remake-status { font-size: 0.78rem; color: var(--color-text-muted); margin-bottom: 6px; }
.remake-projects { font-size: 0.78rem; color: var(--color-text); margin-bottom: 4px; }
.remake-fate { font-size: 0.8rem; color: var(--color-text-muted); font-style: italic; line-height: 1.5; }

/* --- Expansion --- */
.expansion-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.expansion-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 10px; padding: 20px; box-shadow: var(--shadow-sm);
}
.expansion-card h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 4px; }
.expansion-q { font-size: 0.8rem; color: var(--color-text-muted); line-height: 1.5; margin-bottom: 8px; }
.expansion-search { font-size: 0.74rem; color: var(--color-primary); font-family: 'JetBrains Mono', monospace; background: var(--color-surface-2); padding: 4px 8px; border-radius: 4px; word-break: break-all; }

/* --- Cultural Background & Influences --- */
.influences-intro { font-size: 0.84rem; color: var(--color-text-muted); line-height: 1.55; margin-bottom: 20px; padding: 16px; background: color-mix(in srgb, var(--color-surface) 80%, transparent); backdrop-filter: blur(4px); border: 1px solid var(--color-border); border-radius: 8px; }
.influences-category { margin-bottom: 20px; }
.influences-category h3 { font-size: 1rem; font-weight: 700; color: var(--color-primary); margin-bottom: 4px; display: flex; align-items: center; gap: 8px; }
.influences-cat-icon {
  width: 30px; height: 30px; border-radius: 7px; flex-shrink: 0;
  background: color-mix(in srgb, var(--color-primary) 50%, #0b0f14); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
}
.influences-cat-icon svg { width: 18px; height: 18px; display: block; }
.influences-category-desc { font-size: 0.78rem; color: var(--color-text-muted); margin-bottom: 10px; }
.influences-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 10px; }
.influence-entry {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 8px; padding: 14px; box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column; gap: 4px;
}
.influence-entry .ie-work { font-size: 0.88rem; font-weight: 700; color: var(--color-text); }
.influence-entry .ie-creator { font-size: 0.74rem; color: var(--color-text-muted); }
.influence-entry .ie-detail { font-size: 0.78rem; color: var(--color-text-muted); line-height: 1.45; }
.influence-entry .ie-influenced { font-size: 0.72rem; color: var(--color-primary-2); font-weight: 600; }
.influence-badge {
  display: inline-block; font-size: 0.64rem; font-weight: 700; padding: 1px 8px; border-radius: 999px;
  text-transform: uppercase; letter-spacing: 0.04em; align-self: flex-start;
}
.influence-badge.confirmed { background: rgba(74,222,128,0.12); color: var(--color-success); }
.influence-badge.probable { background: rgba(245,166,35,0.12); color: var(--color-warning); }
.influence-badge.possible { background: var(--color-surface-offset); color: var(--color-text-muted); }
.influence-badge.period { background: rgba(124,58,237,0.1); color: var(--color-accent); }

/* --- Platform expanded text --- */
.platform-expanded { font-size: 0.84rem; color: var(--color-text); line-height: 1.55; margin-top: 16px; padding: 12px; background: var(--color-surface-2); border-radius: 8px; border-left: 3px solid var(--color-primary); }

/* --- Sources --- */
.methodology-content { margin-bottom: 16px; padding: 16px; background: color-mix(in srgb, var(--color-surface) 80%, transparent); backdrop-filter: blur(4px); border: 1px solid var(--color-border); border-radius: 8px; }
.methodology-content ul { margin: 0 0 12px 18px; font-size: 0.84rem; color: var(--color-text-muted); display: flex; flex-direction: column; gap: 5px; }
.methodology-content li { line-height: 1.5; }
.sources-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 8px; }
.sources-grid a {
  font-size: 0.76rem; color: var(--color-primary-2); text-decoration: none;
  border: 1px solid var(--color-border); padding: 5px 12px; border-radius: 999px;
  transition: background 0.15s, color 0.15s;
}
.sources-grid a:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

/* --- Footer --- */
.footer { text-align: center; padding: 20px; font-size: 0.72rem; color: var(--color-text-faint); border-top: 1px solid var(--color-border); }

/* --- Creator Profiles --- */
.creators-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
.creator-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 10px; padding: 22px; box-shadow: var(--shadow-sm);
}
.creator-card h3 { font-size: 1.1rem; font-weight: 700; }
.creator-role { font-size: 0.8rem; color: var(--color-primary-2); font-weight: 600; margin-bottom: 10px; }
.creator-bio { font-size: 0.84rem; color: var(--color-text); line-height: 1.55; margin-bottom: 10px; }
.creator-legacy { font-size: 0.8rem; color: var(--color-text-muted); line-height: 1.5; padding: 8px 12px; background: var(--color-surface-2); border-radius: 6px; margin-bottom: 8px; }
.creator-quote { font-size: 0.84rem; color: var(--color-primary); font-style: italic; font-weight: 600; padding: 8px 12px; border-left: 3px solid var(--color-primary); margin-bottom: 8px; }
.creator-sources { display: flex; flex-wrap: wrap; gap: 6px; }
.creator-sources a { font-size: 0.72rem; }

/* --- Philosophy Cards --- */
.philosophy-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.philosophy-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 10px; padding: 20px; box-shadow: var(--shadow-sm);
}
.philosophy-card h3 { font-size: 0.9rem; font-weight: 700; color: var(--color-primary); margin-bottom: 4px; }
.philosophy-source { font-size: 0.7rem; color: var(--color-text-faint); margin-bottom: 6px; }
.philosophy-quote { font-size: 0.8rem; color: var(--color-text-muted); font-style: italic; line-height: 1.5; padding: 8px 12px; background: var(--color-surface-2); border-radius: 6px; margin-bottom: 8px; border-left: 3px solid var(--color-accent); }
.philosophy-detail { font-size: 0.8rem; color: var(--color-text); line-height: 1.5; }

/* --- Review Cards --- */
.reviews-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.review-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 10px; padding: 18px; box-shadow: var(--shadow-sm);
}
.review-card h3 { font-size: 0.9rem; font-weight: 700; }
.review-meta { display: flex; gap: 8px; align-items: center; margin-bottom: 6px; }
.review-publication { font-size: 0.74rem; color: var(--color-text-muted); }
.review-score { font-size: 0.74rem; font-weight: 700; padding: 1px 8px; border-radius: 999px; background: rgba(245,166,35,0.12); color: var(--color-warning); }
.review-excerpt { font-size: 0.82rem; color: var(--color-text); line-height: 1.5; margin-bottom: 6px; }
.review-card a { font-size: 0.72rem; }

/* --- Guide Cards --- */
.guides-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 16px; }
.guide-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 10px; padding: 20px; box-shadow: var(--shadow-sm);
}
.guide-card h3 { font-size: 0.95rem; font-weight: 700; color: var(--color-primary); margin-bottom: 3px; }
.guide-resource { font-size: 0.76rem; color: var(--color-text-muted); margin-bottom: 8px; }
.guide-content { font-size: 0.82rem; color: var(--color-text); line-height: 1.5; margin-bottom: 8px; }
.guide-tips { display: flex; flex-direction: column; gap: 4px; margin-top: 8px; }
.guide-tips li { font-size: 0.78rem; color: var(--color-text-muted); line-height: 1.4; margin-left: 16px; }
.guide-card a { font-size: 0.74rem; display: inline-block; margin-top: 6px; }

/* --- Inline Quote Styling (profuse quoting) --- */
.inline-quote, .design-miniquote, .context-miniquote, .remake-quote {
  font-size: 0.78rem; color: var(--color-text-muted); font-style: italic;
  line-height: 1.4; padding: 6px 0; margin: 2px 0;
}
.inline-quote q { color: var(--color-primary); display: block; margin-bottom: 2px; }
.inline-quote cite, .design-miniquote cite, .context-miniquote cite {
  font-size: 0.68rem; color: var(--color-text-faint); font-style: normal; display: block; margin-top: 2px;
}
.game-expanded { font-size: 0.82rem; color: var(--color-text); line-height: 1.55; margin: 10px 0; padding: 10px 0; border-top: 1px solid var(--color-divider); border-bottom: 1px solid var(--color-divider); }
.game-expanded::after { content: ''; display: table; clear: both; }
.game-screenshot {
  max-width: 320px; width: 40%; float: right; margin: 0 0 10px 14px; border-radius: 8px;
  border: 1px solid var(--color-border); image-rendering: pixelated;
  box-shadow: var(--shadow-sm); background: #000;
}
.game-quotes { display: flex; flex-direction: column; gap: 4px; margin: 8px 0; }
.platform-expanded { font-size: 0.84rem; color: var(--color-text); line-height: 1.55; margin-top: 16px; padding: 12px; background: var(--color-surface-2); border-radius: 8px; border-left: 3px solid var(--color-primary); }
.design-extras, .context-extras, .remake-extras { display: flex; flex-direction: column; gap: 4px; margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--color-divider); }
.expansion-badge { font-size: 0.66rem; font-weight: 700; padding: 1px 8px; border-radius: 999px; margin-left: 6px; vertical-align: middle; }
.expansion-badge.researched { background: rgba(74, 222, 128, 0.12); color: var(--color-success); }
.expansion-badge.partial { background: rgba(245, 166, 35, 0.12); color: var(--color-warning); }
.expansion-badge.pending { background: var(--color-surface-offset); color: var(--color-text-muted); }
.expansion-done { font-size: 0.78rem; color: var(--color-text); line-height: 1.45; margin: 6px 0; padding: 6px 10px; background: var(--color-surface-2); border-radius: 6px; }

/* --- Toast --- */
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px); background: var(--color-surface); color: var(--color-text); border: 1px solid var(--color-border); border-left: 4px solid var(--color-success); padding: 12px 20px; border-radius: 8px; font-size: 0.84rem; box-shadow: var(--shadow-md); opacity: 0; pointer-events: none; transition: opacity 0.25s ease, transform 0.25s ease; z-index: 100; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { border-left-color: var(--color-error); }
.toast.info { border-left-color: var(--color-primary); }

@media (max-width: 640px) {
  .container { padding: 16px 12px 40px; gap: 20px; }
  .lead-card { padding: 20px; }
  .lead-card h2 { font-size: 1.2rem; }
}

/* --- Hero Background Transparency --- */
body { background-color: color-mix(in srgb, var(--color-bg) 85%, transparent); }
.topbar { background: color-mix(in srgb, var(--color-surface) 80%, transparent); backdrop-filter: blur(8px); }
.navbar { background: color-mix(in srgb, var(--color-surface-2) 80%, transparent); backdrop-filter: blur(24px); }
.lead-card, .game-card, .platform-card, .design-card, .context-card, .remake-card, .expansion-card,
.creator-card, .philosophy-card, .review-card, .guide-card, .influence-entry {
  background: color-mix(in srgb, var(--color-surface) 80%, transparent);
  backdrop-filter: blur(4px);
}
.nav-menu { background: color-mix(in srgb, var(--color-surface) 85%, transparent); backdrop-filter: blur(32px); }
.toast { background: color-mix(in srgb, var(--color-surface) 85%, transparent); backdrop-filter: blur(16px); }
.footer { background: color-mix(in srgb, var(--color-surface) 80%, transparent); backdrop-filter: blur(4px); }

/* --- Image lightbox --- */
.game-logo, .game-screenshot { cursor: zoom-in; }
.lightbox {
  display: none; position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,0.92); cursor: zoom-out;
  align-items: center; justify-content: center; padding: 40px;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: 90vw; max-height: 90vh; object-fit: contain;
  border-radius: 8px; box-shadow: 0 8px 40px rgba(0,0,0,0.6);
  image-rendering: auto;
}
.lightbox-close {
  position: absolute; top: 20px; right: 28px;
  font-size: 2rem; font-weight: 300; color: #fff; cursor: pointer;
  background: none; border: none; line-height: 1; opacity: 0.7; transition: opacity 0.2s;
}
.lightbox-close:hover { opacity: 1; }

/* --- Subnav dropdown (subsection sub-items) --- */
.nav-item { position: relative; }
.subnav {
  position: absolute; top: 100%; left: 0; min-width: 240px; max-height: 70vh; overflow-y: auto;
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 8px; box-shadow: var(--shadow-md);
  display: none; flex-direction: column; padding: 6px; z-index: 300;
}
.nav-item:hover > .subnav,
.nav-item:focus-within > .subnav,
.nav-item.subnav-open > .subnav { display: flex; }
.subnav.subnav-has-children { overflow: visible; max-height: none; }
.subnav-nested { max-height: 70vh; overflow-y: auto; }
.subnav a {
  padding: 7px 12px; font-size: 0.76rem; border-radius: 6px;
  color: var(--color-text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.subnav a:hover { background: var(--color-surface-offset); color: var(--color-primary); }
@media (max-width: 900px) {
  .subnav { position: static; min-width: 0; max-height: none; box-shadow: none; border: none; border-left: 1px solid var(--color-divider); margin: 0 0 4px 14px; padding: 2px 0 2px 8px; display: none; }
  .nav-item.subnav-open > .subnav { display: flex; }
}

/* --- Sub-subsection entry icons --- */
.entry-icon {
  width: 20px; height: 20px; border-radius: 5px; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  margin-right: 6px; vertical-align: middle;
}
.entry-icon svg { width: 14px; height: 14px; display: block; }
.ie-work { display: flex; align-items: center; }
.entry-confirmed { background: rgba(74,222,128,0.15); color: var(--color-success); }
.entry-probable { background: rgba(245,166,35,0.15); color: var(--color-warning); }
.entry-possible { background: var(--color-surface-offset); color: var(--color-text-muted); }
.entry-period { background: rgba(124,58,237,0.12); color: var(--color-accent); }

/* Nested sub-subnav */
.subnav .nav-item { position: relative; }
.subnav-nested { left: 100%; top: 0; }
.subnav .nav-item:hover > .subnav-nested,
.subnav .nav-item:focus-within > .subnav-nested { display: flex; }
@media (max-width: 900px) {
  .subnav-nested { left: 0; position: static; }
  .subnav .nav-item.subnav-open > .subnav-nested { display: flex; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* --- Nav / subnav horizontal overflow guard --- */
.nav-links { flex-wrap: nowrap; flex-shrink: 0; }
.nav-menu { min-width: 0; }
.navbar-inner { height: auto; }
#refresh-btn { display: none; }
.nav-item.subnav-right > .subnav { left: auto !important; right: 0 !important; }
.nav-item.subnav-right > .subnav.subnav-nested { left: auto !important; right: 100% !important; }
html.nav-collapsed .hamburger { display: flex; }
html.nav-collapsed .nav-menu { position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; background: var(--color-surface); border-bottom: 1px solid var(--color-border); padding: 8px 12px; transform: translateY(-200%); transition: transform 300ms ease; z-index: 99; }
html.nav-collapsed .nav-menu.open { transform: translateY(0); }
html.nav-collapsed .nav-links { flex-direction: column; gap: 2px; }
html.nav-collapsed .nav-links a { padding: 10px 12px; }


/* research corpus (md2wiki researchFiles) */
.research-list { display: flex; flex-wrap: wrap; gap: 8px; }
.research-link { font-size: 0.82rem; color: var(--color-primary); text-decoration: none; background: var(--color-surface-2, rgba(0,0,0,0.04)); border: 1px solid var(--color-border); padding: 5px 10px; border-radius: 999px; }
.research-link:hover { text-decoration: underline; }