/* ============================================================
   BestTutorialx — aidenmiles.com
   Style: Arcade / pixel + Industry (utilitarian mono, dashboard)
   Dark-first, light-toggle. Tokens straight from DESIGN.md.
   ============================================================ */

:root {
  /* palette (DESIGN.md tokens) */
  --ink:        #111111;
  --paper:      #F5F5F5;
  --accent:     #FF4D2E;  /* arcade red-orange */
  --deep:       #023E8A;  /* ocean deep */
  --cyan:       #48CAE4;  /* ocean cyan */
  --ice:        #CAF0F8;  /* ocean ice */

  /* dark theme (default) */
  --bg:         #111111;
  --bg-2:       #171717;
  --panel:      #1b1b1b;
  --panel-2:    #202020;
  --line:       #2c2c2c;
  --line-2:     #3a3a3a;
  --fg:         #F5F5F5;
  --fg-dim:     #a7a7a7;
  --fg-faint:   #6f6f6f;
  --brand:      var(--accent);
  --link:       var(--cyan);
  --glow:       rgba(72,202,228,.16);

  /* type */
  --mono: ui-monospace, "Cascadia Code", "SF Mono", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  /* rhythm */
  --pad: clamp(1rem, 4vw, 2rem);
  --maxw: 1120px;
  --radius: 0px;            /* pixel look = hard corners */
  --step: 4px;             /* pixel grid unit */
  --shadow-pix: 6px 6px 0 0 rgba(0,0,0,.55);
  --shadow-pix-accent: 6px 6px 0 0 var(--accent);
  --ring: 0 0 0 3px var(--cyan);
  --dur: .5s;
}

:root[data-theme="light"] {
  --bg:      #F5F5F5;
  --bg-2:    #ececec;
  --panel:   #ffffff;
  --panel-2: #f2f2f2;
  --line:    #d9d9d9;
  --line-2:  #c4c4c4;
  --fg:      #111111;
  --fg-dim:  #4a4a4a;
  --fg-faint:#7a7a7a;
  --link:    #026aa7;
  --glow:    rgba(2,62,138,.10);
  --shadow-pix: 6px 6px 0 0 rgba(17,17,17,.18);
}

*,*::before,*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){ html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: clamp(1rem, .95rem + .2vw, 1.075rem);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100vh;
}

/* subtle grid backdrop — the "dashboard" register */
body::before{
  content:"";
  position: fixed; inset:0; z-index:-2;
  background:
    linear-gradient(var(--line) 1px, transparent 1px) 0 0/ 48px 48px,
    linear-gradient(90deg, var(--line) 1px, transparent 1px) 0 0/ 48px 48px;
  opacity:.14;
  -webkit-mask-image: radial-gradient(120% 100% at 50% 0%, #000 40%, transparent 100%);
          mask-image: radial-gradient(120% 100% at 50% 0%, #000 40%, transparent 100%);
  pointer-events:none;
}
body::after{
  content:""; position: fixed; inset:0; z-index:-2; pointer-events:none;
  background: radial-gradient(60% 45% at 50% -5%, var(--glow), transparent 70%);
}

/* ---------- type ---------- */
h1,h2,h3,h4,.mono,.eyebrow,.tag,.btn,nav a,.stat-num{ font-family: var(--mono); }
h1,h2,h3 { line-height: 1.02; letter-spacing: -.01em; margin: 0 0 .5em; font-weight: 700; }
h1 { font-size: clamp(2.6rem, 8vw, 6.2rem); text-transform: uppercase; letter-spacing: -.02em; }
h2 { font-size: clamp(1.6rem, 3.6vw, 2.6rem); text-transform: uppercase; }
h3 { font-size: clamp(1.1rem, 1.6vw, 1.35rem); }
p  { margin: 0 0 1rem; color: var(--fg-dim); max-width: 62ch; }
a  { color: var(--link); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, .btn:focus-visible, input:focus-visible, textarea:focus-visible, summary:focus-visible {
  outline: none; box-shadow: var(--ring); border-radius: 0;
}
.eyebrow{
  display:inline-flex; align-items:center; gap:.5ch;
  font-size:.72rem; letter-spacing:.28em; text-transform:uppercase;
  color: var(--accent); margin:0 0 1rem;
}
.eyebrow::before{ content:"▸"; color: var(--accent); }

.container{ width:100%; max-width: var(--maxw); margin-inline:auto; padding-inline: var(--pad); }
section{ padding-block: clamp(3.5rem, 9vw, 7rem); position: relative; }
.lead{ font-size: clamp(1.05rem,1.4vw,1.25rem); color: var(--fg); max-width: 60ch; }

/* ---------- scroll progress ---------- */
.progress{
  position: fixed; top:0; left:0; height:3px; width:0%;
  background: var(--accent); z-index: 120;
  box-shadow: 0 0 12px var(--accent);
}

/* ---------- loader ---------- */
.loader{
  position: fixed; inset:0; z-index:200; display:grid; place-items:center;
  background: var(--bg); transition: opacity .5s ease, visibility .5s;
}
.loader.done{ opacity:0; visibility:hidden; }
.loader .box{ text-align:center; font-family: var(--mono); }
.loader .bar{
  width: 220px; max-width: 60vw; height: 14px; margin: 14px auto 0;
  border: 2px solid var(--fg); background: transparent; padding:2px;
}
.loader .bar i{
  display:block; height:100%; width:0%;
  background: repeating-linear-gradient(90deg, var(--accent) 0 8px, transparent 8px 12px);
  animation: load 1.1s steps(12,end) forwards;
}
.loader .pct{ font-size:.72rem; letter-spacing:.2em; color: var(--fg-dim); margin-top:10px; }
@keyframes load{ to{ width:100%; } }
@media (prefers-reduced-motion: reduce){ .loader{ display:none !important; } }

/* ---------- cursor blob ---------- */
.cursor{
  position: fixed; top:0; left:0; width:26px; height:26px; z-index:150;
  border: 2px solid var(--accent); mix-blend-mode: difference;
  transform: translate(-100px,-100px); pointer-events:none;
  transition: transform .08s linear, width .2s, height .2s, background .2s;
}
.cursor.big{ width:56px; height:56px; background: var(--accent); border-color: var(--accent); }
@media (hover: none), (prefers-reduced-motion: reduce){ .cursor{ display:none; } }

/* ---------- nav ---------- */
.nav{
  position: sticky; top:0; z-index:100;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px) saturate(1.1);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, background .25s;
}
.nav.scrolled{ border-bottom-color: var(--line-2); background: color-mix(in srgb, var(--bg) 94%, transparent); }
.nav .row{ display:flex; align-items:center; gap:1rem; height:64px; }
.brand{ display:flex; align-items:center; gap:.6rem; font-family:var(--mono); font-weight:700; letter-spacing:.02em; text-decoration:none; color:var(--fg); }
.brand .glyph{ width:26px; height:26px; display:inline-block; image-rendering: pixelated; }
.brand b{ color: var(--accent); }
.nav .spacer{ flex:1; }
.nav .links{ display:flex; gap:.35rem; align-items:center; }
.nav .links a{
  font-size:.82rem; text-transform:uppercase; letter-spacing:.08em; text-decoration:none;
  color: var(--fg-dim); padding:.5rem .7rem; border:1px solid transparent;
}
.nav .links a:hover{ color: var(--fg); border-color: var(--line-2); }
.nav .links a[aria-current="page"]{ color: var(--fg); border-color: var(--accent); }
.icon-btn{
  display:inline-grid; place-items:center; width:40px; height:40px; cursor:pointer;
  background: var(--panel); color: var(--fg); border:1px solid var(--line-2);
  font-family: var(--mono); font-size:1rem;
}
.icon-btn:hover{ border-color: var(--accent); }
.menu-btn{ display:none; }

@media (max-width: 820px){
  .nav .links{
    position: fixed; inset:64px 0 auto 0; flex-direction:column; gap:0;
    background: var(--bg-2); border-bottom:1px solid var(--line-2);
    padding:.5rem var(--pad) 1rem; transform: translateY(-140%); transition: transform .3s ease;
  }
  .nav .links.open{ transform: translateY(0); }
  .nav .links a{ padding:.85rem .2rem; border-left:0; border-right:0; }
  .menu-btn{ display:inline-grid; }
}
@media (prefers-reduced-motion: reduce){ .nav .links{ transition:none; } }

/* ---------- buttons ---------- */
.btn{
  --bg-btn: var(--accent);
  display:inline-flex; align-items:center; gap:.5ch; cursor:pointer;
  font-size:.82rem; text-transform:uppercase; letter-spacing:.1em; font-weight:700;
  text-decoration:none; padding:.85rem 1.3rem;
  color:#111; background: var(--bg-btn); border:2px solid var(--fg);
  box-shadow: var(--shadow-pix);
  transition: transform .12s steps(2), box-shadow .12s steps(2), background .2s;
}
.btn:hover{ transform: translate(-2px,-2px); box-shadow: 9px 9px 0 0 rgba(0,0,0,.55); }
.btn:active{ transform: translate(3px,3px); box-shadow: 2px 2px 0 0 rgba(0,0,0,.55); }
.btn.ghost{ background: transparent; color: var(--fg); }
.btn.cyan{ --bg-btn: var(--cyan); }
@media (prefers-reduced-motion: reduce){ .btn{ transition:none; } .btn:hover{ transform:none; } }

/* ---------- hero ---------- */
.hero{ padding-block: clamp(3rem, 8vw, 6rem) clamp(2.5rem,6vw,4rem); }
.hero .grid{ display:grid; grid-template-columns: 1.15fr .85fr; gap: clamp(1.5rem,4vw,3rem); align-items:center; }
.hero h1 .cur{ color: var(--accent); animation: blink 1s steps(1) infinite; }
@keyframes blink{ 50%{ opacity:0; } }
@media (prefers-reduced-motion: reduce){ .hero h1 .cur{ animation:none; } }
.hero .sub{ font-size: clamp(1.05rem,1.5vw,1.3rem); color: var(--fg); max-width: 46ch; }
.hero .cta{ display:flex; gap:.8rem; flex-wrap:wrap; margin-top:1.6rem; }
.hero .art{ border:2px solid var(--line-2); background: var(--panel); box-shadow: var(--shadow-pix); }
.hero .art svg{ display:block; width:100%; height:auto; }
@media (max-width: 860px){ .hero .grid{ grid-template-columns:1fr; } .hero .art{ order:-1; } }

/* ---------- stat / ticker strip ---------- */
.strip{ border-block:1px solid var(--line-2); background: var(--panel); }
.strip .row{ display:flex; flex-wrap:wrap; gap:0; }
.stat{ flex:1 1 180px; padding:1.4rem var(--pad); border-right:1px solid var(--line); }
.stat:last-child{ border-right:0; }
.stat-num{ font-size:1.9rem; font-weight:700; color: var(--fg); }
.stat-num b{ color: var(--accent); }
.stat-lab{ font-size:.72rem; letter-spacing:.18em; text-transform:uppercase; color: var(--fg-faint); }

/* ---------- section head ---------- */
.head{ display:flex; align-items:flex-end; justify-content:space-between; gap:1rem; margin-bottom: 2rem; flex-wrap:wrap; }
.head p{ margin:0; }

/* ---------- cards / gallery ---------- */
.grid-cards{ display:grid; grid-template-columns: repeat(auto-fill, minmax(260px,1fr)); gap: 1.1rem; }
.card{
  background: var(--panel); border:1px solid var(--line-2); position:relative;
  transition: transform .16s steps(2), box-shadow .16s steps(2), border-color .16s;
  display:flex; flex-direction:column;
}
.card:hover{ transform: translate(-3px,-3px); box-shadow: var(--shadow-pix); border-color: var(--accent); }
.card .thumb{ aspect-ratio: 16/10; overflow:hidden; border-bottom:1px solid var(--line-2); background: var(--bg-2); }
.card .thumb svg{ display:block; width:100%; height:100%; }
.card .body{ padding: 1rem 1.05rem 1.2rem; display:flex; flex-direction:column; gap:.5rem; flex:1; }
.card .tag{
  align-self:flex-start; font-size:.64rem; letter-spacing:.16em; text-transform:uppercase;
  color:#111; background: var(--cyan); padding:.2rem .5rem;
}
.card h3{ margin:0; }
.card p{ margin:0; font-size:.92rem; color: var(--fg-dim); }
.card .meta{ margin-top:auto; display:flex; align-items:center; justify-content:space-between; font-family:var(--mono); font-size:.72rem; color: var(--fg-faint); letter-spacing:.06em; }
.card .meta .go{ color: var(--accent); }
@media (prefers-reduced-motion: reduce){ .card{ transition:none; } .card:hover{ transform:none; } }

.diff{ display:inline-flex; gap:2px; }
.diff i{ width:7px; height:7px; background: var(--line-2); display:inline-block; }
.diff i.on{ background: var(--accent); }

/* ---------- carousel ---------- */
.carousel{ position: relative; }
.track{
  display:flex; gap:1rem; overflow-x:auto; scroll-snap-type:x mandatory;
  padding-bottom:.6rem; scrollbar-width:thin; scrollbar-color: var(--line-2) transparent;
}
.track::-webkit-scrollbar{ height:8px; }
.track::-webkit-scrollbar-thumb{ background: var(--line-2); }
.track > *{ scroll-snap-align:start; flex: 0 0 min(320px, 82vw); }
.carousel .arrows{ display:flex; gap:.4rem; }

/* ---------- reveal ---------- */
.reveal{ opacity:0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; will-change: opacity, transform; }
.reveal.in{ opacity:1; transform:none; }
.reveal.d1{ transition-delay:.06s; } .reveal.d2{ transition-delay:.12s; } .reveal.d3{ transition-delay:.18s; } .reveal.d4{ transition-delay:.24s; }
@media (prefers-reduced-motion: reduce){ .reveal{ opacity:1 !important; transform:none !important; transition:none !important; } }

/* ---------- steps / about ---------- */
.steps{ display:grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap:1rem; }
.step{ border:1px solid var(--line-2); background: var(--panel); padding:1.3rem; }
.step .n{ font-family:var(--mono); font-size:.8rem; color: var(--accent); letter-spacing:.2em; }
.two-col{ display:grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem,4vw,3rem); align-items:start; }
@media (max-width:800px){ .two-col{ grid-template-columns:1fr; } }
.panel{ border:1px solid var(--line-2); background: var(--panel); padding: clamp(1.2rem,3vw,2rem); }

/* ---------- forms ---------- */
.field{ display:flex; flex-direction:column; gap:.4rem; margin-bottom:1rem; }
.field label{ font-family:var(--mono); font-size:.74rem; letter-spacing:.14em; text-transform:uppercase; color: var(--fg-dim); }
.field input, .field textarea{
  font-family: var(--mono); font-size:.95rem; color: var(--fg);
  background: var(--bg-2); border:2px solid var(--line-2); padding:.75rem .8rem;
}
.field input:focus, .field textarea:focus{ border-color: var(--accent); }
.field textarea{ min-height:130px; resize:vertical; }
.form-note{ font-size:.8rem; color: var(--fg-faint); }

/* ---------- FAQ ---------- */
.faq details{ border:1px solid var(--line-2); background: var(--panel); margin-bottom:.7rem; }
.faq summary{
  cursor:pointer; list-style:none; padding:1rem 1.1rem; font-family:var(--mono);
  display:flex; align-items:center; justify-content:space-between; gap:1rem;
}
.faq summary::-webkit-details-marker{ display:none; }
.faq summary .pm{ color: var(--accent); font-weight:700; transition: transform .2s; }
.faq details[open] summary .pm{ transform: rotate(45deg); }
.faq .ans{ padding:0 1.1rem 1.15rem; color: var(--fg-dim); }
@media (prefers-reduced-motion: reduce){ .faq summary .pm{ transition:none; } }

/* ---------- links row ---------- */
.linkrow{ display:flex; flex-wrap:wrap; gap:.7rem; }
.linkrow a{
  display:inline-flex; align-items:center; gap:.5ch; text-decoration:none;
  font-family:var(--mono); font-size:.82rem; color: var(--fg);
  border:1px solid var(--line-2); padding:.6rem .9rem; background: var(--panel);
}
.linkrow a:hover{ border-color: var(--accent); color: var(--fg); }

/* ---------- CTA band ---------- */
.band{ border:2px solid var(--fg); background: var(--panel); box-shadow: var(--shadow-pix); padding: clamp(1.6rem,4vw,2.6rem); text-align:center; }
.band h2{ margin-bottom:.4rem; }

/* ---------- article / tutorial ---------- */
.crumbs{ font-family:var(--mono); font-size:.72rem; letter-spacing:.1em; text-transform:uppercase; color: var(--fg-faint); margin-bottom:1rem; }
.crumbs a{ color: var(--fg-dim); text-decoration:none; }
.crumbs a:hover{ color: var(--accent); }
.crumbs .sep{ color: var(--line-2); margin:0 .4ch; }
.article-head{ border-bottom:1px solid var(--line-2); padding-bottom:1.6rem; margin-bottom:0; }
.guide-hero{ border:2px solid var(--line-2); background: var(--bg-2); box-shadow: var(--shadow-pix); margin-top:1.4rem; overflow:hidden; }
.guide-hero svg{ display:block; width:100%; height:auto; }
.cat-lane{ margin-bottom:2.4rem; }
.cat-lane .lane-head{ display:flex; align-items:baseline; gap:.8rem; border-bottom:1px solid var(--line-2); padding-bottom:.6rem; margin-bottom:1.1rem; }
.cat-lane .lane-head h2{ font-size:clamp(1.15rem,2.2vw,1.5rem); margin:0; }
.cat-lane .lane-head .count{ font-family:var(--mono); font-size:.72rem; color: var(--fg-faint); letter-spacing:.1em; }
.article-meta{ display:flex; flex-wrap:wrap; gap:.6rem; align-items:center; margin-top:1rem; font-family:var(--mono); font-size:.74rem; color: var(--fg-faint); letter-spacing:.06em; }
.article-meta .tag{ color:#111; background: var(--cyan); padding:.2rem .5rem; font-size:.64rem; letter-spacing:.16em; text-transform:uppercase; }
.article-grid{ display:grid; grid-template-columns: 230px 1fr; gap: clamp(1.5rem,4vw,3rem); align-items:start; }
@media (max-width:900px){ .article-grid{ grid-template-columns:1fr; } .toc{ position:static !important; } .toc.hide-sm{ display:none; } }
.toc{ position: sticky; top:84px; border:1px solid var(--line-2); background: var(--panel); padding:1rem 1.1rem; }
.toc h4{ font-size:.68rem; letter-spacing:.2em; text-transform:uppercase; color: var(--fg-faint); margin:0 0 .7rem; }
.toc a{ display:block; font-family:var(--mono); font-size:.8rem; color: var(--fg-dim); text-decoration:none; padding:.28rem 0; border-left:2px solid transparent; padding-left:.6rem; }
.toc a:hover{ color: var(--fg); border-left-color: var(--accent); }

.prose{ max-width: 68ch; }
.prose h2{ font-size: clamp(1.3rem,2.4vw,1.8rem); margin-top:2.4rem; scroll-margin-top:84px; }
.prose h2:first-child{ margin-top:0; }
.prose h3{ margin-top:1.6rem; color: var(--fg); scroll-margin-top:84px; }
.prose p{ color: var(--fg-dim); }
.prose strong{ color: var(--fg); }
.prose ul, .prose ol{ color: var(--fg-dim); padding-left:1.2rem; margin:0 0 1rem; }
.prose li{ margin-bottom:.5rem; }
.prose li::marker{ color: var(--accent); }
.prose a{ color: var(--link); }
kbd{ font-family:var(--mono); font-size:.8em; background: var(--bg-2); border:1px solid var(--line-2); border-bottom-width:2px; padding:.05em .45em; color: var(--fg); }
.prose code{ font-family:var(--mono); font-size:.86em; background: var(--bg-2); border:1px solid var(--line-2); padding:.05em .4em; color: var(--cyan); }
.prose pre{ margin:0 0 1rem; background: var(--bg-2); border:1px solid var(--line-2); border-left:3px solid var(--accent); overflow-x:auto; }
.prose pre code{ display:block; background:transparent; border:0; padding:.9rem 1.05rem; color: var(--fg); font-size:.84rem; line-height:1.6; white-space:pre; }
.prose pre code .c{ color: var(--fg-faint); }
.prose pre code .k{ color: var(--accent); }
.prose pre code .s{ color: var(--cyan); }
.prose .stat-def{ border:1px solid var(--line-2); background: var(--panel); padding:1rem 1.1rem; margin-bottom:.7rem; }
.prose .stat-def h3{ margin:0 0 .35rem; font-size:1rem; display:flex; align-items:center; gap:.5ch; }
.prose .stat-def h3 .dot{ width:10px; height:10px; background: var(--accent); display:inline-block; }
.prose .stat-def p{ margin:0; font-size:.94rem; }
.callout{ border-left:3px solid var(--accent); background: var(--panel); padding:.9rem 1.1rem; margin:1.2rem 0; }
.callout .lab{ font-family:var(--mono); font-size:.68rem; letter-spacing:.18em; text-transform:uppercase; color: var(--accent); display:block; margin-bottom:.3rem; }
.callout p{ margin:0; color: var(--fg-dim); font-size:.94rem; }
.tbc{ border:2px dashed var(--line-2); background: var(--panel); padding:1.4rem; text-align:center; margin-top:2.4rem; }
.tbc .mono{ color: var(--accent); letter-spacing:.2em; }

.toc a.active{ color: var(--accent); border-left-color: var(--accent); }
/* mobile: left nav collapses into a dropdown at the top of the article */
.toc-toggle{ display:none; }
@media (max-width:900px){
  .toc{ position: static !important; margin-bottom:1.4rem; }
  .toc-toggle{
    display:flex; align-items:center; justify-content:space-between; width:100%;
    font-family:var(--mono); font-size:.72rem; letter-spacing:.2em; text-transform:uppercase;
    color: var(--fg-faint); background:transparent; border:0; cursor:pointer; padding:0;
  }
  .toc-toggle .pm{ color: var(--accent); font-weight:700; transition: transform .2s; }
  .toc.collapsed .toc-toggle .pm{ transform: rotate(45deg); }
  .toc h4{ display:none; }
  .toc .toc-links{ margin-top:.8rem; }
  .toc.collapsed .toc-links{ display:none; }
}
@media (prefers-reduced-motion: reduce){ .toc-toggle .pm{ transition:none; } }

/* ---------- DLC-gated sections + dividers ---------- */
.adv-divider{ display:flex; align-items:center; gap:1rem; margin:2.4rem 0 1.2rem; }
.adv-divider::before, .adv-divider::after{ content:""; height:1px; background:var(--line-2); flex:1; }
.adv-divider span{ font-family:var(--mono); font-size:.72rem; letter-spacing:.22em; text-transform:uppercase; color:var(--fg-faint); white-space:nowrap; }
.dlc-badge{ display:inline-flex; align-items:center; gap:.4ch; font-family:var(--mono); font-size:.58rem; letter-spacing:.12em; text-transform:uppercase; color:#08222f; background:var(--cyan); padding:.2rem .5rem; margin-left:.5rem; vertical-align:middle; white-space:nowrap; }
.dlc-note{ font-family:var(--mono); font-size:.74rem; color: var(--cyan); border:1px solid var(--cyan); background: color-mix(in srgb, var(--cyan) 10%, transparent); padding:.5rem .7rem; margin-bottom:1rem; display:flex; gap:.5ch; }
.toc-div{ font-family:var(--mono); font-size:.6rem; letter-spacing:.18em; text-transform:uppercase; color:var(--cyan); margin:.9rem 0 .1rem; padding:.7rem 0 0 .6rem; border-top:1px solid var(--line); }

/* ---------- article dropdown sections ---------- */
.drop{ border:1px solid var(--line-2); background: var(--panel); margin-bottom:.8rem; scroll-margin-top:80px; }
.drop > summary{
  cursor:pointer; list-style:none; padding:1rem 1.15rem;
  font-family:var(--mono); font-size:clamp(1rem,1.6vw,1.2rem); font-weight:700; color: var(--fg);
  display:flex; align-items:center; gap:.7rem;
}
.drop > summary::-webkit-details-marker{ display:none; }
.drop > summary .num{ font-size:.72rem; color: var(--accent); letter-spacing:.1em; }
.drop > summary .pm{ margin-left:auto; color: var(--accent); font-weight:700; font-size:1.2rem; transition: transform .2s; }
.drop[open] > summary .pm{ transform: rotate(45deg); }
.drop[open] > summary{ border-bottom:1px solid var(--line); }
.drop.dlc{ border-left:3px solid var(--cyan); }
.drop.dlc > summary .num{ color: var(--cyan); }
.drop.dlc > summary .pm{ color: var(--cyan); }
.drop .drop-body{ padding: 1.1rem 1.15rem 1.3rem; }
.drop .drop-body > *:first-child{ margin-top:0; }
.drop .drop-body p:last-child, .drop .drop-body ul:last-child{ margin-bottom:0; }
@media (prefers-reduced-motion: reduce){ .drop > summary .pm{ transition:none; } }

/* ---------- visuals gallery + lightbox ---------- */
.viz-grid{ display:grid; grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); gap:1.1rem; }
.viz{ position:relative; display:block; width:100%; text-align:left; cursor:zoom-in; font:inherit; color:inherit; padding:0;
  background:var(--panel); border:2px solid var(--line-2);
  transition: transform .16s steps(2), box-shadow .16s steps(2), border-color .16s; }
.viz:hover{ transform:translate(-4px,-4px); box-shadow:8px 8px 0 0 var(--accent); border-color:var(--fg); }
.viz:hover::before, .viz:hover::after{ border-color:var(--cyan); }
/* arcade corner brackets */
.viz::before, .viz::after{ content:""; position:absolute; width:12px; height:12px; z-index:2; pointer-events:none; transition:border-color .16s; }
.viz::before{ top:-2px; left:-2px; border-top:3px solid var(--accent); border-left:3px solid var(--accent); }
.viz::after{ bottom:-2px; right:-2px; border-bottom:3px solid var(--accent); border-right:3px solid var(--accent); }
.viz .frame{ position:relative; aspect-ratio:16/10; overflow:hidden; border-bottom:2px solid var(--line-2); background:var(--bg-2); }
.viz .frame svg{ display:block; width:100%; height:100%; }
.viz .cap{ padding:.85rem 1rem; display:flex; flex-direction:column; gap:.35rem; }
.viz .cap .tag{ align-self:flex-start; font-size:.6rem; letter-spacing:.16em; text-transform:uppercase; color:#111; background:var(--cyan); padding:.18rem .5rem; }
.viz .cap b{ font-family:var(--mono); font-size:.92rem; }
.viz .cap span{ font-size:.82rem; color:var(--fg-dim); }
.viz .cap .zoom{ font-family:var(--mono); font-size:.66rem; letter-spacing:.1em; color:var(--fg-faint); text-transform:uppercase; }
@media (prefers-reduced-motion: reduce){ .viz{ transition:none; } .viz:hover{ transform:none; } }

.lightbox{ position:fixed; inset:0; z-index:250; display:grid; place-items:center; padding:clamp(1rem,4vw,3rem);
  background:rgba(8,10,14,.9); -webkit-backdrop-filter:blur(4px); backdrop-filter:blur(4px);
  opacity:0; visibility:hidden; transition:opacity .28s ease, visibility .28s; }
.lightbox.open{ opacity:1; visibility:visible; }
.lightbox .lb-inner{ width:min(1100px, 94vw); max-height:92vh; overflow:auto;
  border:2px solid var(--accent); background:var(--panel); box-shadow:12px 12px 0 0 rgba(0,0,0,.5);
  transform:scale(.94); transition:transform .28s ease; }
.lightbox.open .lb-inner{ transform:scale(1); }
.lightbox .lb-art svg{ display:block; width:100%; height:auto; background:var(--bg-2); image-rendering:pixelated; }
.lightbox .lb-cap{ padding:1rem 1.2rem; font-family:var(--mono); font-size:.95rem; color:var(--fg); border-top:2px solid var(--line-2); }
.lightbox .lb-cap span{ color:var(--fg-dim); }
.lightbox .lb-close{ position:fixed; top:clamp(.8rem,3vw,1.6rem); right:clamp(.8rem,3vw,1.6rem); z-index:3;
  width:48px; height:48px; font-size:1.25rem; background:var(--accent); color:#111; border:2px solid #111;
  box-shadow:4px 4px 0 0 rgba(0,0,0,.4); }
.lightbox .lb-close:hover{ background:var(--paper); }
@media (prefers-reduced-motion: reduce){
  .lightbox, .lightbox .lb-inner{ transition:none; }
  .lightbox .lb-inner{ transform:none; }
}

/* ---------- "to be added" placeholder ---------- */
.tba{ display:grid; place-items:center; text-align:center; border:2px dashed var(--line-2); background: var(--panel); padding: clamp(2rem,6vw,4rem); }
.tba .glyph{ font-family:var(--mono); font-size:clamp(2.5rem,9vw,5rem); color: var(--accent); letter-spacing:.1em; }
.tba .blink{ animation: blink 1s steps(1) infinite; }
@media (prefers-reduced-motion: reduce){ .tba .blink{ animation:none; } }

/* ---------- footer ---------- */
footer{ border-top:1px solid var(--line-2); background: var(--bg-2); padding-block: 2.4rem; margin-top: 2rem; }
footer .cols{ display:flex; flex-wrap:wrap; gap: 2rem 3rem; justify-content:space-between; }
footer .mono{ font-size:.78rem; color: var(--fg-faint); }
footer a{ color: var(--fg-dim); text-decoration:none; display:block; padding:.15rem 0; font-size:.9rem; }
footer a:hover{ color: var(--accent); }
footer h4{ font-size:.72rem; letter-spacing:.2em; text-transform:uppercase; color: var(--fg-faint); margin:0 0 .6rem; }
.foot-bottom{ margin-top:1.6rem; padding-top:1.2rem; border-top:1px solid var(--line); display:flex; justify-content:space-between; flex-wrap:wrap; gap:.6rem; font-family:var(--mono); font-size:.72rem; color: var(--fg-faint); }

/* skip link */
.skip{ position:absolute; left:-999px; top:0; background: var(--accent); color:#111; padding:.6rem 1rem; z-index:300; font-family:var(--mono); }
.skip:focus{ left:.5rem; top:.5rem; }

/* utilities */
.center{ text-align:center; }
.mt2{ margin-top:2rem; } .mt1{ margin-top:1rem; }
.dim{ color: var(--fg-dim); }
.hl{ color: var(--accent); }
.cyan{ color: var(--cyan); }
.sr-only{ position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); border:0; }