/* Cyberdark library skin — "ink & static": black ink, white paper, binary rain, one blood-red oni accent.
   Structure: lib_skin.css. Body class: .lk-cyberdark. */

.lk-cyberdark {
  --lk-bg: #050506;
  --lk-panel-a: #121214;
  --lk-panel-b: #08080a;
  --lk-line: rgba(239, 236, 228, 0.13);
  --lk-line-strong: rgba(239, 236, 228, 0.34);
  --lk-accent: #ff2d3d;
  --lk-accent-2: #efece4;
  --lk-paper: #efece4;
  --lk-ink: #050506;
  --lk-title: #f6f4ee;
  --lk-text: #d6d3cc;
  --lk-dim: #8e8a83;
  --lk-head: "Chakra Petch", "Bahnschrift", "Segoe UI", sans-serif;
  --lk-jp: "Yu Gothic", "Meiryo", "Noto Sans JP", "Hiragino Sans", sans-serif;
  --lk-radius: 3px;
  --lk-binary: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='140'><g font-family='monospace' font-size='11' fill='%23efece4'><text x='4' y='12' opacity='.5'>1</text><text x='4' y='26' opacity='.3'>0</text><text x='4' y='40' opacity='.15'>1</text><text x='34' y='54' opacity='.45'>0</text><text x='34' y='68' opacity='.25'>0</text><text x='34' y='82' opacity='.12'>1</text><text x='64' y='20' opacity='.35'>1</text><text x='64' y='34' opacity='.2'>1</text><text x='94' y='96' opacity='.4'>0</text><text x='94' y='110' opacity='.22'>1</text><text x='94' y='124' opacity='.1'>0</text><text x='64' y='132' opacity='.3'>0</text></g></svg>");
  --lk-page-bg:
    radial-gradient(800px 500px at 100% 0%, rgba(255, 45, 61, 0.08), transparent 60%),
    radial-gradient(1px 1px at 50% 50%, rgba(239, 236, 228, 0.06), transparent) 0 0 / 3px 3px,
    #050506;
  --lk-table-bg: rgba(10, 10, 12, 0.94);
  --tbl-line: rgba(239, 236, 228, 0.1);
  --tbl-line-strong: rgba(239, 236, 228, 0.28);
  --tbl-head: #161618;
  --tbl-stripe: rgba(239, 236, 228, 0.025);
  --tbl-hover: rgba(255, 45, 61, 0.06);
  --tbl-group: rgba(239, 236, 228, 0.07);
  --link: #ff6b77;
}

/* Sidebar: ink column */
.lk-cyberdark .sidebar { background: #070708; border-right: 1px solid var(--lk-line-strong); }
.lk-cyberdark .sidebar .nav-group-title { font-family: var(--lk-head); font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--lk-title); }
.lk-cyberdark .sidebar .nav-group-title::before { color: var(--lk-accent); }
.lk-cyberdark .sidebar .nav-link:hover,
.lk-cyberdark .sidebar .nav-link.active { color: var(--lk-ink); background: var(--lk-paper); }

/* Hero: manga splash page — speed lines + binary rain */
.lk-cyberdark .lk-hero {
  border: 2px solid var(--lk-paper);
  border-radius: 2px;
  background:
    repeating-conic-gradient(from 0deg at 82% 50%, rgba(239, 236, 228, 0.07) 0 0.6deg, transparent 0.6deg 5deg),
    radial-gradient(70% 90% at 82% 50%, transparent 30%, #050506 75%),
    #0b0b0d;
  box-shadow: 6px 6px 0 rgba(239, 236, 228, 0.12), 0 22px 50px rgba(0, 0, 0, 0.7);
}
.lk-cyberdark .lk-deco-a {
  /* binary rain, left column */
  left: 0;
  top: 0;
  bottom: 0;
  width: 46%;
  background: var(--lk-binary) 0 0 / 120px 140px;
  opacity: 0.22;
  mask-image: linear-gradient(90deg, #000, transparent);
  -webkit-mask-image: linear-gradient(90deg, #000, transparent);
}
.lk-cyberdark .lk-deco-b {
  /* blood drip rule */
  left: 36px;
  bottom: 0;
  width: 160px;
  height: 4px;
  background: var(--lk-accent);
  box-shadow: 0 0 18px rgba(255, 45, 61, 0.6);
}
.lk-cyberdark .lk-watermark {
  right: 240px;
  top: 12px;
  bottom: 12px;
  writing-mode: vertical-rl;
  font-family: var(--lk-jp);
  font-weight: 900;
  font-size: 2.6rem;
  letter-spacing: 0.1em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(239, 236, 228, 0.22);
}
.lk-cyberdark .lk-kicker { color: var(--lk-dim); letter-spacing: 0.22em; }
.lk-cyberdark .lk-cursor { width: 9px; height: 9px; background: var(--lk-accent); }
.lk-cyberdark .lk-title {
  font-size: clamp(2.3rem, 5.6vw, 3.9rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-shadow: 3px 0 0 rgba(255, 45, 61, 0.75), -2px 0 0 rgba(239, 236, 228, 0.18);
}
.lk-cyberdark .lk-title .lk-accent {
  padding: 0 0.12em;
  color: var(--lk-ink);
  background: var(--lk-paper);
  text-shadow: none;
  box-shadow: 4px 4px 0 var(--lk-accent);
}
.lk-cyberdark .lk-tags li {
  padding: 4px 11px;
  border: 1px solid var(--lk-line-strong);
  background: #0e0e10;
  font-family: var(--lk-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.lk-cyberdark .lk-tags strong { color: var(--lk-title); }
.lk-cyberdark .lk-tags li:first-child { border-color: var(--lk-accent); }
.lk-cyberdark .lk-tags li:first-child strong { color: var(--lk-accent); }

/* Poster: inked manga panel with a hanko seal */
.lk-cyberdark .lk-poster { width: 196px; padding: 6px; background: var(--lk-paper); transform: rotate(1.5deg); box-shadow: 6px 6px 0 #000, 0 18px 40px rgba(0, 0, 0, 0.7); }
.lk-cyberdark .lk-poster-frame { border: 3px solid #050506; }
.lk-cyberdark .lk-poster img { height: 262px; filter: grayscale(1) contrast(1.45) brightness(1.05); }
.lk-cyberdark .lk-poster figcaption {
  position: absolute;
  right: -14px;
  bottom: 18px;
  display: block;
  padding: 8px 5px;
  writing-mode: vertical-rl;
  font-family: var(--lk-jp);
  font-weight: 700;
  font-size: 0.86rem;
  letter-spacing: 0.12em;
  color: #fff;
  background: var(--lk-accent);
  border: 2px solid #8f0d17;
  border-radius: 3px;
  transform: rotate(-4deg);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
}
.lk-cyberdark .lk-poster-cap { white-space: nowrap; overflow: visible; }
.lk-cyberdark .lk-poster-sub { display: none; }

/* Chapter banners: white slab + kanji */
.lk-cyberdark .lk-chapter { border: 1px solid var(--lk-line-strong); background: #0a0a0c; box-shadow: 4px 4px 0 rgba(239, 236, 228, 0.08); }
.lk-cyberdark .lk-chapter-num { color: var(--lk-ink); background: var(--lk-paper); font-size: 2rem; }
.lk-cyberdark .lk-chapter-name { letter-spacing: 0.12em; }
.lk-cyberdark .lk-chapter-sub { font-family: var(--lk-jp); letter-spacing: 0.3em; color: var(--lk-accent); }
.lk-cyberdark .lk-chapter-mark { font-family: var(--lk-jp); font-weight: 900; font-size: 1.6rem; color: var(--lk-accent); text-shadow: 0 0 14px rgba(255, 45, 61, 0.5); }

/* Sections */
.lk-cyberdark .section > h2,
.lk-cyberdark h2.section-title {
  display: inline-block;
  padding: 2px 12px 4px;
  font-size: 1.55rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--lk-ink);
  background: var(--lk-paper);
  box-shadow: 4px 4px 0 var(--lk-accent);
}
.lk-cyberdark .section > h2 + * { margin-top: 16px; }
.lk-cyberdark .section h3 { color: var(--lk-accent); }

/* Cards: inked panels */
.lk-cyberdark .card {
  border: 1px solid var(--lk-line-strong);
  border-radius: 2px;
  background: linear-gradient(170deg, var(--lk-panel-a), var(--lk-panel-b));
  box-shadow: 4px 4px 0 rgba(239, 236, 228, 0.08);
}
.lk-cyberdark .card:hover { border-color: var(--lk-paper); box-shadow: 4px 4px 0 var(--lk-accent); }
.lk-cyberdark .card-title { text-transform: uppercase; letter-spacing: 0.06em; color: var(--lk-title); }
.lk-cyberdark .badge { background: var(--lk-paper); color: var(--lk-ink); border: 0; }
.lk-cyberdark .rule-key { border-left-color: var(--lk-accent); background: linear-gradient(90deg, rgba(255, 45, 61, 0.1), transparent); }

/* Tables */
.lk-cyberdark table.data-table thead th { color: var(--lk-title); }
.lk-cyberdark table.eq-table td.num,
.lk-cyberdark td.rt-roll { color: var(--lk-accent); }
.lk-cyberdark tr.tbl-group td { color: var(--lk-title); }

/* Chips & buttons */
.lk-cyberdark .filter-chip.active { background: var(--lk-paper); border-color: var(--lk-paper); color: var(--lk-ink); }
.lk-cyberdark .btn-primary { background: var(--lk-paper); border-color: var(--lk-paper); color: var(--lk-ink); box-shadow: 3px 3px 0 var(--lk-accent); }
.lk-cyberdark .btn-primary:hover { background: #fff; }

/* Threats */
.lk-cyberdark #adv-grid { grid-template-columns: repeat(auto-fill, minmax(min(100%, 330px), 1fr)); }
.lk-cyberdark .adv-card > h3 { text-transform: uppercase; letter-spacing: 0.05em; }

/* Roll boards */
.lk-cyberdark .rt-die-chip { background: var(--lk-paper); color: var(--lk-ink); }
.lk-cyberdark .rt-result { border-color: var(--lk-accent); }

/* Quick strip */
.lk-cyberdark .lk-quick-card { border-radius: 2px; box-shadow: 4px 4px 0 rgba(239, 236, 228, 0.08); }
.lk-cyberdark .lk-quick-card h3 { color: var(--lk-title); }
.lk-cyberdark .lk-quick-card h3::after { content: " ■"; color: var(--lk-accent); }
.lk-cyberdark .lk-ladder strong,
.lk-cyberdark .lk-steps li::before { background: var(--lk-paper); color: var(--lk-ink); }
.lk-cyberdark .lk-formula em { color: var(--lk-accent); }
.lk-cyberdark .lk-kv li strong { color: var(--lk-title); }

/* Motion (Full only): the rain falls, the title glitches now and then */
html[data-motion="full"] .lk-cyberdark .lk-deco-a { animation: lk-cd-rain 9s linear infinite; }
@keyframes lk-cd-rain { to { background-position: 0 140px; } }
html[data-motion="full"] .lk-cyberdark .lk-title { animation: lk-cd-glitch 8s steps(1) infinite; }
@keyframes lk-cd-glitch {
  0%, 94%, 100% { transform: none; text-shadow: 3px 0 0 rgba(255, 45, 61, 0.75), -2px 0 0 rgba(239, 236, 228, 0.18); }
  95% { transform: translateX(2px) skewX(-6deg); text-shadow: -4px 0 0 rgba(255, 45, 61, 0.9), 4px 0 0 rgba(239, 236, 228, 0.4); }
  97% { transform: translateX(-2px); }
}
html[data-motion="full"] .lk-cyberdark .lk-poster:hover { transform: rotate(0deg) scale(1.03); }

@media (max-width: 720px) {
  .lk-cyberdark .lk-watermark { right: 8px; font-size: 1.8rem; }
}
.lk-cyberdark .lk-title { line-height: 1.12; }
.lk-cyberdark .lk-title .lk-accent { display: inline-block; margin-top: 4px; }