/* ============================================================================
   PROTOCELL — site officiel. Design system inspire directement du jeu :
   abysses sombres, vert bioluminescent, rouge instabilite, accents cyan/ADN.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Chakra+Petch:wght@400;500;600;700&family=VT323&display=swap');

:root {
  /* Palette (tiree des couleurs du jeu) */
  --bg:        #05080a;
  --bg-2:      #080d10;
  --panel:     #0d1316;
  --panel-2:   #111a1e;
  --line:      #1c2a2e;

  --green:     #6effa0;   /* bioluminescent primaire */
  --green-mid: #3fd07a;
  --green-dim: #1f6b46;
  --cyan:      #58c8ff;
  --red:       #ff5a44;   /* instabilite / meltdown */
  --gold:      #ffd86b;   /* catalyseur / legendaire */

  --dna-a: #dc3232;
  --dna-t: #46b4e6;
  --dna-c: #f5c33c;
  --dna-g: #aa50dc;

  --text:      #d7e2dc;
  --text-dim:  #83958c;
  --text-mute: #5a6b63;

  --display: 'Chakra Petch', system-ui, sans-serif;
  --mono: 'VT323', 'Courier New', monospace;

  --maxw: 1180px;
  --radius: 4px;
  --glow-green: 0 0 14px rgba(110,255,160,.35);
  --glow-red: 0 0 14px rgba(255,90,68,.4);
}

/* ---- Reset / base ------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 78px; }
body {
  font-family: var(--display);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* Fond ambiance : degrade abyssal + halo vert diffus */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(1200px 700px at 78% -8%, rgba(110,255,160,.07), transparent 60%),
    radial-gradient(900px 600px at 10% 110%, rgba(88,200,255,.06), transparent 60%),
    linear-gradient(180deg, #05080a 0%, #060b0d 50%, #04070a 100%);
}
/* Scanlines CRT discretes */
body::after {
  content: '';
  position: fixed; inset: 0; z-index: 9998; pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(0,0,0,0) 0 2px, rgba(0,0,0,.18) 2px 3px);
  mix-blend-mode: multiply; opacity: .5;
}

/* ---- Typo --------------------------------------------------------------- */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.1; letter-spacing: .01em; }
.mono { font-family: var(--mono); letter-spacing: .03em; }
.eyebrow {
  font-family: var(--mono); font-size: 1.15rem; letter-spacing: .35em;
  text-transform: uppercase; color: var(--green-mid);
  display: inline-block; margin-bottom: 14px;
}
.eyebrow::before { content: '// '; color: var(--green-dim); }
.section-title { font-size: clamp(1.8rem, 4vw, 2.9rem); margin-bottom: 14px; }
.section-title .accent { color: var(--green); text-shadow: var(--glow-green); }
.lead { color: var(--text-dim); font-size: 1.08rem; max-width: 62ch; }

/* ---- Layout ------------------------------------------------------------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; position: relative; }
.section--alt { background:
  linear-gradient(180deg, transparent, rgba(13,19,22,.55) 12%, rgba(13,19,22,.55) 88%, transparent); }
.center { text-align: center; }
.center .lead { margin-inline: auto; }

/* Separateur "jauge d'instabilite" */
.divider {
  height: 3px; border: 0; max-width: var(--maxw); margin: 0 auto;
  background: linear-gradient(90deg, transparent, var(--green-dim) 20%, var(--green) 50%, var(--red) 85%, transparent);
  opacity: .5;
}

/* ---- Boutons ------------------------------------------------------------ */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--display); font-weight: 600; font-size: .95rem;
  letter-spacing: .08em; text-transform: uppercase;
  padding: 13px 26px; border-radius: var(--radius);
  border: 1px solid var(--line); color: var(--text);
  background: var(--panel); cursor: pointer; transition: .18s ease;
}
.btn:hover { transform: translateY(-2px); border-color: var(--green-dim); }
.btn-primary {
  background: linear-gradient(180deg, rgba(110,255,160,.18), rgba(63,208,122,.08));
  border-color: var(--green-mid); color: var(--green);
  box-shadow: var(--glow-green);
}
.btn-primary:hover { background: rgba(110,255,160,.28); box-shadow: 0 0 22px rgba(110,255,160,.5); }
.btn-ghost { background: transparent; }
.btn-lg { padding: 17px 34px; font-size: 1.05rem; }

/* ---- Nav ---------------------------------------------------------------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(5,8,10,.72); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line); transition: .25s;
}
.nav.scrolled { background: rgba(5,8,10,.92); box-shadow: 0 6px 24px rgba(0,0,0,.5); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: .18em; font-size: 1.15rem; }
.brand .dot { width: 11px; height: 11px; border-radius: 50%; background: var(--green); box-shadow: var(--glow-green); animation: pulse 2.4s infinite; }
.brand b { color: var(--green); }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { font-size: .9rem; letter-spacing: .06em; color: var(--text-dim); transition: .15s; }
.nav-links a:hover { color: var(--green); }
.nav-cta { padding: 9px 18px; font-size: .82rem; }
.nav-toggle { display: none; background: none; border: 0; color: var(--green); font-size: 1.6rem; cursor: pointer; }
.lang-li { display: flex; align-items: center; }
.lang-toggle { display: inline-flex; align-items: center; gap: 7px; cursor: pointer;
  background: var(--panel); border: 1px solid var(--line); color: var(--text-dim);
  padding: 6px 10px; border-radius: var(--radius); font-family: var(--display);
  font-size: .82rem; letter-spacing: .06em; transition: .15s; }
.lang-toggle:hover { border-color: var(--green-dim); color: var(--green); }
.lang-toggle img { width: 22px; height: 15px; object-fit: cover; border-radius: 2px; display: block; box-shadow: 0 0 0 1px rgba(0,0,0,.4); }

/* ---- Hero --------------------------------------------------------------- */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  padding-top: 64px; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: -1;
  background-image: url('../img/bg/intro_breach.png');
  background-size: cover; background-position: center;
  opacity: .42; filter: saturate(1.1) contrast(1.05);
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(5,8,10,.55), rgba(5,8,10,.78) 60%, var(--bg));
}
#cells { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.hero-content { max-width: 780px; }
.hero .tag { font-family: var(--mono); color: var(--green-mid); letter-spacing: .3em; font-size: 1.2rem; }
.hero h1 {
  font-size: clamp(3rem, 11vw, 7.5rem); letter-spacing: .04em; margin: 6px 0 4px;
  color: #eafff2; text-shadow: 0 0 28px rgba(110,255,160,.35), 0 0 4px rgba(110,255,160,.5);
}
.hero .sub { font-size: clamp(1.05rem, 2.4vw, 1.45rem); color: var(--text); font-weight: 500; }
.hero .sub .accent { color: var(--green); }
.hero .pitch { color: var(--text-dim); margin: 18px 0 30px; max-width: 56ch; font-size: 1.05rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 34px; font-family: var(--mono); font-size: 1.05rem; color: var(--text-dim); }
.hero-badges span { display: inline-flex; align-items: center; gap: 7px; }
.hero-badges b { color: var(--green); }
.scroll-hint {
  position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%);
  font-family: var(--mono); color: var(--text-mute); letter-spacing: .2em; font-size: .95rem;
  animation: bob 2s infinite;
}

/* ---- Story -------------------------------------------------------------- */
.story-grid { display: grid; gap: 22px; }
.story-row {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 32px; align-items: center;
}
.story-row:nth-child(even) { grid-template-columns: 1fr 1.1fr; }
.story-row:nth-child(even) .story-media { order: -1; }
.story-media {
  position: relative; aspect-ratio: 16/9; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; background: var(--panel);
}
.story-media img { width: 100%; height: 100%; object-fit: cover; opacity: .92; }
.story-media .day { position: absolute; top: 10px; left: 12px; font-family: var(--mono); font-size: 1.05rem; color: var(--green); background: rgba(5,8,10,.7); padding: 2px 8px; border-left: 2px solid var(--green); }
.story-text h3 { font-size: 1.5rem; color: var(--green); margin-bottom: 10px; }
.story-text p { color: var(--text-dim); }

/* ---- Feature grid ------------------------------------------------------- */
.grid { display: grid; gap: 18px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: linear-gradient(180deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 24px;
  transition: .2s ease; position: relative; overflow: hidden;
}
.card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 2px; background: var(--green); transform: scaleX(0); transform-origin: left; transition: .25s; }
.card:hover { transform: translateY(-4px); border-color: var(--green-dim); box-shadow: 0 10px 30px rgba(0,0,0,.4); }
.card:hover::before { transform: scaleX(1); }
.card .ico { font-size: 1.7rem; margin-bottom: 12px; filter: drop-shadow(var(--glow-green)); }
.card h3 { font-size: 1.15rem; margin-bottom: 8px; color: var(--text); }
.card p { color: var(--text-dim); font-size: .96rem; }

/* ---- Stats -------------------------------------------------------------- */
.stats { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.stat { text-align: center; padding: 20px 8px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
.stat .num { font-family: var(--mono); font-size: 2.6rem; color: var(--green); line-height: 1; text-shadow: var(--glow-green); }
.stat .lbl { font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--text-mute); margin-top: 6px; }

/* ---- Instability meter -------------------------------------------------- */
.meter-demo { max-width: 640px; margin: 28px auto 0; }
.meter { height: 18px; border: 1px solid var(--line); border-radius: 20px; overflow: hidden; background: var(--bg-2); position: relative; }
.meter i { display: block; height: 100%; width: 72%; background: linear-gradient(90deg, var(--green), var(--gold) 65%, var(--red)); animation: fill 4s ease-in-out infinite alternate; }
.meter-labels { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 1rem; margin-top: 6px; color: var(--text-mute); }
.meter-labels .danger { color: var(--red); }

/* ---- Worlds ------------------------------------------------------------- */
.worlds { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.world {
  display: grid; grid-template-columns: 150px 1fr; border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; background: var(--panel); transition: .2s;
}
.world:hover { border-color: var(--green-dim); transform: translateY(-3px); }
.world-img { position: relative; background: var(--bg-2); min-height: 150px; }
.world-img img { width: 100%; height: 100%; object-fit: cover; opacity: .85; }
.world-num { position: absolute; top: 8px; left: 8px; font-family: var(--mono); font-size: 1.3rem; color: var(--green); background: rgba(5,8,10,.75); padding: 0 8px; }
.world-body { padding: 16px 18px; }
.world-body h3 { font-size: 1.15rem; color: var(--green); }
.world-body .boss { font-family: var(--mono); font-size: 1.05rem; color: var(--cyan); margin: 2px 0 8px; }
.world-body p { font-size: .9rem; color: var(--text-dim); }
.tagchip { display: inline-block; font-family: var(--mono); font-size: .95rem; letter-spacing: .05em; color: var(--red); border: 1px solid rgba(255,90,68,.35); padding: 1px 8px; border-radius: 3px; margin-top: 10px; }
.tagchip.none { color: var(--text-mute); border-color: var(--line); }

/* ---- Mutation icon grid ------------------------------------------------- */
.mut-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 12px; }
.mut {
  text-align: center; padding: 16px 8px; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--panel); transition: .18s;
}
.mut:hover { border-color: var(--green-dim); transform: translateY(-3px); background: var(--panel-2); }
.mut img { width: 48px; height: 48px; margin: 0 auto 8px; image-rendering: pixelated; filter: drop-shadow(0 0 6px rgba(110,255,160,.3)); }
.mut span { font-size: .78rem; color: var(--text-dim); letter-spacing: .03em; }

/* ---- Modes (alternating big blocks) ------------------------------------ */
.mode { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: center; margin-bottom: 64px; }
.mode:nth-child(even) .mode-media { order: -1; }
.mode-media { position: relative; aspect-ratio: 16/10; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.mode-media img { width: 100%; height: 100%; object-fit: cover; }
.mode h3 { font-size: 1.8rem; color: var(--green); margin-bottom: 6px; }
.mode .kicker { font-family: var(--mono); color: var(--cyan); letter-spacing: .15em; font-size: 1.05rem; }
.mode p { color: var(--text-dim); margin: 12px 0; }
.mode ul.checks li { padding-left: 26px; position: relative; color: var(--text-dim); margin: 6px 0; }
.mode ul.checks li::before { content: '▸'; position: absolute; left: 4px; color: var(--green); }

/* ---- Placeholders (emplacements images a fournir) ---------------------- */
.placeholder {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  width: 100%; height: 100%; min-height: 180px;
  border: 1.5px dashed var(--green-dim); border-radius: var(--radius);
  background: repeating-linear-gradient(45deg, rgba(110,255,160,.03) 0 10px, transparent 10px 20px);
  color: var(--text-mute); text-align: center; padding: 20px; gap: 8px;
}
.placeholder .ph-ico { font-size: 1.8rem; color: var(--green-dim); }
.placeholder .ph-label { font-family: var(--mono); font-size: 1.05rem; color: var(--green-mid); letter-spacing: .05em; }
.placeholder .ph-note { font-size: .8rem; }

/* ---- Gallery ------------------------------------------------------------ */
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.gallery .shot { aspect-ratio: 16/9; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; cursor: zoom-in; transition: .18s; }
.gallery .shot:hover { border-color: var(--green-dim); transform: translateY(-2px); box-shadow: 0 8px 22px rgba(0,0,0,.4); }
.gallery .shot img { width: 100%; height: 100%; object-fit: cover; }
.gallery:empty { display: none; }
.gallery-pager { display: flex; align-items: center; justify-content: center; gap: 18px; margin-top: 24px; }
.gallery-pager .pg-count { color: var(--text-dim); font-size: 1.2rem; }
.gallery-pager .btn:disabled { opacity: .3; cursor: default; transform: none; }

/* Lightbox */
.lightbox { position: fixed; inset: 0; z-index: 9999; display: none; align-items: center; justify-content: center;
  background: rgba(3,5,7,.93); padding: 28px; cursor: zoom-out; }
.lightbox.open { display: flex; }
.lightbox img { max-width: 92vw; max-height: 90vh; border: 1px solid var(--green-dim); border-radius: var(--radius);
  box-shadow: 0 0 44px rgba(110,255,160,.22); }

/* Mode media using in-game hub art (square/4:3) — shown WHOLE inside the 16:10 frame,
   never cropped, never overflowing, on a themed panel. */
.mode-media.art {
  background: radial-gradient(120% 120% at 50% 30%, rgba(110,255,160,.08), var(--bg-2) 72%);
  display: flex; align-items: center; justify-content: center; padding: 14px;
}
.mode-media.art img {
  width: auto; height: auto; max-width: 100%; max-height: 100%;
  object-fit: contain; border-radius: 3px;
}

/* ---- Early access ------------------------------------------------------- */
.ea-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }
.ea-list li { padding: 10px 0; border-bottom: 1px solid var(--line); color: var(--text-dim); display: flex; gap: 10px; }
.ea-list li b { color: var(--green); font-family: var(--mono); }

/* ---- CTA band ----------------------------------------------------------- */
.cta-band { text-align: center; padding: 90px 0; position: relative; overflow: hidden; }
.cta-band .hero-bg { background-image: url('../img/bg/intro_meltdown.png'); opacity: .3; }
.cta-band h2 { font-size: clamp(2rem, 5vw, 3.4rem); margin-bottom: 14px; }
.cta-band h2 .accent { color: var(--green); text-shadow: var(--glow-green); }

/* ---- Footer ------------------------------------------------------------- */
.footer { border-top: 1px solid var(--line); background: var(--bg-2); padding: 56px 0 30px; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 30px; margin-bottom: 36px; }
.footer h4 { font-size: .85rem; letter-spacing: .12em; text-transform: uppercase; color: var(--green-mid); margin-bottom: 14px; }
.footer a { color: var(--text-dim); display: block; padding: 4px 0; font-size: .92rem; transition: .15s; }
.footer a:hover { color: var(--green); }
.footer .logo-row { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.footer .logo-row img { width: 38px; image-rendering: pixelated; }
.legal { font-size: .78rem; color: var(--text-mute); line-height: 1.7; border-top: 1px solid var(--line); padding-top: 22px; }
.legal b { color: var(--text-dim); }

/* ---- Guide-specific ----------------------------------------------------- */
.guide-hero { padding: 130px 0 50px; text-align: center; }
.guide-layout { display: grid; grid-template-columns: 240px 1fr; gap: 44px; align-items: start; }
.toc { position: sticky; top: 90px; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; background: var(--panel); }
.toc h4 { font-family: var(--mono); color: var(--green); letter-spacing: .1em; margin-bottom: 10px; font-size: 1.1rem; }
.toc a { display: block; padding: 6px 0; font-size: .9rem; color: var(--text-dim); border-left: 2px solid transparent; padding-left: 10px; transition: .15s; }
.toc a:hover, .toc a.active { color: var(--green); border-left-color: var(--green); }
.guide-body h2 { font-size: 1.8rem; color: var(--green); margin: 0 0 14px; scroll-margin-top: 84px; }
.guide-body h3 { font-size: 1.2rem; color: var(--cyan); margin: 26px 0 8px; }
.guide-body p, .guide-body li { color: var(--text-dim); }
.guide-body p { margin-bottom: 12px; }
.guide-body ul { margin: 0 0 14px 0; }
.guide-body ul li { padding-left: 22px; position: relative; margin: 6px 0; }
.guide-body ul li::before { content: '–'; position: absolute; left: 4px; color: var(--green-dim); }
.guide-section { padding: 30px 0; border-bottom: 1px solid var(--line); }
.callout { border-left: 3px solid var(--green); background: rgba(110,255,160,.05); padding: 14px 18px; border-radius: 0 var(--radius) var(--radius) 0; margin: 16px 0; }
.callout.warn { border-left-color: var(--red); background: rgba(255,90,68,.06); }
.callout .mono { color: var(--green); }

/* Tables */
.table-wrap { overflow-x: auto; margin: 14px 0; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
th { font-family: var(--mono); color: var(--green); letter-spacing: .04em; font-size: 1rem; font-weight: 400; }
td { color: var(--text-dim); }
tr:hover td { background: rgba(110,255,160,.03); }
td .b { color: var(--cyan); }

/* Controls / glyphs */
.controls-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.ctrl-block h3 { display: flex; align-items: center; gap: 8px; }
.ctrl-row { display: flex; align-items: center; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.ctrl-key { font-family: var(--mono); font-size: 1.05rem; color: var(--green); min-width: 120px; }
.ctrl-key img { height: 26px; image-rendering: pixelated; vertical-align: middle; }
.ctrl-act { color: var(--text-dim); font-size: .92rem; }

/* Reference tables : category chips + boss blocks */
.cat { font-family: var(--mono); font-size: .92rem; padding: 1px 7px; border-radius: 3px; letter-spacing: .03em; white-space: nowrap; }
.cat-off { color: #ff8c70; background: rgba(255,90,68,.12); }
.cat-str { color: #7fd0ff; background: rgba(88,200,255,.12); }
.cat-spe { color: var(--green); background: rgba(110,255,160,.12); }
.boss-block { margin: 20px 0; padding-bottom: 8px; }
.boss-block + .boss-block { border-top: 1px solid var(--line); padding-top: 18px; }
.boss-block h4 { font-size: 1.2rem; color: var(--cyan); }
.boss-world { font-family: var(--mono); font-size: .98rem; color: var(--text-mute); letter-spacing: .05em; margin-left: 10px; }

/* DNA chips */
.dna { display: inline-flex; gap: 6px; margin: 6px 0; }
.dna b { font-family: var(--mono); width: 24px; height: 24px; display: grid; place-items: center; border-radius: 3px; color: #050a07; font-size: 1.1rem; }
.dna .a { background: var(--dna-a); } .dna .t { background: var(--dna-t); }
.dna .c { background: var(--dna-c); } .dna .g { background: var(--dna-g); }

/* ---- Reveal on scroll --------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---- Animations --------------------------------------------------------- */
@keyframes pulse { 0%,100% { opacity: 1; box-shadow: var(--glow-green); } 50% { opacity: .5; box-shadow: 0 0 4px rgba(110,255,160,.3); } }
@keyframes bob { 0%,100% { transform: translate(-50%,0); } 50% { transform: translate(-50%,8px); } }
@keyframes fill { from { width: 30%; } to { width: 86%; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } .reveal { opacity: 1; transform: none; } }

/* ---- Responsive --------------------------------------------------------- */
@media (max-width: 920px) {
  .nav-links { position: fixed; inset: 64px 0 auto 0; flex-direction: column; gap: 0;
    background: rgba(5,8,10,.97); border-bottom: 1px solid var(--line); padding: 10px 0;
    transform: translateY(-130%); transition: .3s; }
  .nav-links.open { transform: none; }
  .nav-links a { padding: 14px 24px; width: 100%; border-bottom: 1px solid var(--line); }
  .nav-toggle { display: block; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(3, 1fr); }
  .worlds { grid-template-columns: 1fr; }
  .story-row, .story-row:nth-child(even), .mode, .ea-wrap, .controls-grid, .footer-top { grid-template-columns: 1fr; }
  .story-row:nth-child(even) .story-media, .mode:nth-child(even) .mode-media { order: 0; }
  .guide-layout { grid-template-columns: 1fr; }
  .toc { position: static; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .world { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
}