/* ═══════════════════════════════════════════════════════════
   IMMUNO — landing · deep-tissue charcoal + bioluminescent lab
   palette (locked): green #43e08a · cyan #57d0ff · bg #101418
   ═══════════════════════════════════════════════════════════ */

:root {
  --bg:        #101418;
  --bg-2:      #151b21;
  --bg-3:      #1b232b;
  --line:      #232d37;
  --green:     #43e08a;
  --green-dk:  #1f9e5c;
  --cyan:      #57d0ff;
  --cyan-dk:   #2a89b8;
  --red:       #ff5470;
  --amber:     #ffd166;
  --ink:       #e8f1ee;
  --ink-dim:   #93a6a0;
  --ink-faint: #5a6a66;
  --px: 6px;                       /* voxel corner step */
  --disp: "Silkscreen", monospace;
  --body: "Chakra Petch", sans-serif;
  --mono: "IBM Plex Mono", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.6;
  overflow-x: hidden;
}
::selection { background: var(--green); color: var(--bg); }
.mono { font-family: var(--mono); }
.t-green { color: var(--green); }
.t-cyan  { color: var(--cyan); }
.t-red   { color: var(--red); }
a { color: var(--cyan); text-decoration: none; }
img { max-width: 100%; height: auto; image-rendering: pixelated; }

/* ── atmosphere ─────────────────────────────────────────── */
.scanlines {
  position: fixed; inset: 0; z-index: 40; pointer-events: none;
  background: repeating-linear-gradient(0deg, transparent 0 3px, rgba(0,0,0,.12) 3px 4px);
  mix-blend-mode: multiply;
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(900px 600px at 85% -10%, rgba(87,208,255,.10), transparent 60%),
    radial-gradient(1100px 700px at -15% 30%, rgba(67,224,138,.09), transparent 60%),
    radial-gradient(800px 800px at 60% 110%, rgba(255,84,112,.05), transparent 60%),
    var(--bg);
}
.bg-cells { position: fixed; inset: 0; z-index: -1; pointer-events: none; }
.bg-cells span {
  position: absolute; display: block; width: 10px; height: 10px;
  background: var(--green); opacity: .12;
  box-shadow: 14px 6px 0 rgba(87,208,255,.5);
  animation: drift 26s linear infinite;
}
.bg-cells span:nth-child(1) { left: 6%;  animation-delay: 0s;   }
.bg-cells span:nth-child(2) { left: 18%; animation-delay: -7s;  width: 7px; height: 7px; }
.bg-cells span:nth-child(3) { left: 31%; animation-delay: -13s; }
.bg-cells span:nth-child(4) { left: 46%; animation-delay: -3s;  width: 6px; height: 6px; }
.bg-cells span:nth-child(5) { left: 58%; animation-delay: -18s; }
.bg-cells span:nth-child(6) { left: 71%; animation-delay: -9s;  width: 8px; height: 8px; }
.bg-cells span:nth-child(7) { left: 84%; animation-delay: -21s; }
.bg-cells span:nth-child(8) { left: 93%; animation-delay: -15s; width: 6px; height: 6px; }
@keyframes drift {
  from { transform: translateY(105vh) rotate(0deg); }
  to   { transform: translateY(-8vh)  rotate(360deg); }
}

/* ── voxel chrome: notched corners ──────────────────────── */
.btn, .card, .game-frame, .mut-step, .reward-col, .token-col,
.ca-box, .phase, .overlay-card, .tower-btn {
  clip-path: polygon(
    0 var(--px), var(--px) var(--px), var(--px) 0,
    calc(100% - var(--px)) 0, calc(100% - var(--px)) var(--px), 100% var(--px),
    100% calc(100% - var(--px)), calc(100% - var(--px)) calc(100% - var(--px)),
    calc(100% - var(--px)) 100%, var(--px) 100%, var(--px) calc(100% - var(--px)),
    0 calc(100% - var(--px))
  );
}

/* ── buttons ────────────────────────────────────────────── */
.btn {
  display: inline-block; cursor: pointer; border: none;
  font-family: var(--disp); font-weight: 700; letter-spacing: .04em;
  padding: 14px 26px; font-size: 1.05rem; line-height: 1;
  transition: transform .08s ease, filter .15s ease;
}
.btn:active { transform: translateY(2px); }
.btn-play {
  background: var(--green); color: #0a1410;
  box-shadow: inset 0 -4px 0 rgba(0,0,0,.28), 0 0 24px rgba(67,224,138,.35);
}
.btn-play:hover { filter: brightness(1.12); }
.btn-ghost {
  background: transparent; color: var(--cyan);
  box-shadow: inset 0 0 0 2px var(--cyan-dk);
}
.btn-ghost:hover { box-shadow: inset 0 0 0 2px var(--cyan); }
.btn-sm { padding: 10px 16px; font-size: .9rem; }
.btn-lg { padding: 18px 40px; font-size: 1.3rem; }
.btn-vaccine {
  background: var(--bg-3); color: var(--green); font-size: .8rem;
  font-family: var(--mono); letter-spacing: .06em;
  box-shadow: inset 0 0 0 2px var(--green-dk); padding: 10px 14px;
}
.btn-vaccine:not(:disabled):hover { background: var(--green); color: #0a1410; }
.btn-vaccine:disabled { color: var(--ink-faint); box-shadow: inset 0 0 0 2px var(--line); cursor: not-allowed; }
.btn-vaccine.ready {
  color: #0a1410; cursor: pointer;
  animation: vmready .55s steps(2) infinite;
}
@keyframes vmready {
  0%,49%   { background: var(--green); box-shadow: inset 0 0 0 2px var(--green), 0 0 26px rgba(67,224,138,.85); }
  50%,100% { background: var(--bg-3); color: var(--green); box-shadow: inset 0 0 0 2px var(--green); }
}

/* ── nav ────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 22px;
  padding: 10px clamp(16px, 4vw, 48px);
  background: rgba(16,20,24,.86); backdrop-filter: blur(8px);
  border-bottom: 2px solid var(--line);
}
.nav-brand { display: flex; align-items: center; gap: 10px; }
.brand-word { font-family: var(--disp); font-weight: 700; font-size: 1.35rem; color: var(--ink); letter-spacing: .05em; }
.nav-links { display: flex; gap: 20px; margin-left: auto; }
.nav-links a {
  font-family: var(--mono); font-size: .82rem; color: var(--ink-dim);
  text-transform: uppercase; letter-spacing: .06em;
}
.nav-links a:hover { color: var(--green); }
@media (max-width: 760px) { .nav-links { display: none; } .nav .btn { margin-left: auto; } }

/* ── sections shared ────────────────────────────────────── */
section { padding: clamp(64px, 9vw, 120px) clamp(16px, 5vw, 64px); max-width: 1180px; margin: 0 auto; }
.section-head { max-width: 780px; margin-bottom: 42px; }
.kicker { display: block; color: var(--green); font-size: .8rem; letter-spacing: .12em; margin-bottom: 12px; }
h2 {
  font-family: var(--disp); font-weight: 700; line-height: 1.14;
  font-size: clamp(1.5rem, 3.8vw, 2.5rem); letter-spacing: 0;
  text-wrap: balance; margin-bottom: 14px;
}
.section-head p { color: var(--ink-dim); max-width: 640px; }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .bg-cells, .scanlines { display: none; }
}

/* ── hero ───────────────────────────────────────────────── */
.hero { padding-top: clamp(48px, 7vw, 96px); }
.hero-inner { display: grid; grid-template-columns: 1.25fr .75fr; gap: 40px; align-items: center; }
@media (max-width: 860px) { .hero-inner { grid-template-columns: 1fr; } .hero-vial { order: -1; justify-self: center; } }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 22px; }
.chip {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .08em;
  padding: 6px 12px; border: 1.5px solid; border-radius: 2px;
}
.chip-green { color: var(--green); border-color: var(--green-dk); background: rgba(67,224,138,.07); }
.chip-cyan  { color: var(--cyan);  border-color: var(--cyan-dk);  background: rgba(87,208,255,.07); }
.chip-dim   { color: var(--ink-dim); border-color: var(--line); }
.hero-title {
  font-family: var(--disp); font-weight: 700; line-height: 1.06;
  font-size: clamp(1.7rem, 4.2vw, 2.75rem); letter-spacing: 0;
  text-shadow: 0 0 40px rgba(67,224,138,.25);
}
.hero-sub { margin: 20px 0 28px; font-size: 1.15rem; color: var(--ink-dim); max-width: 520px; }
.hero-sub em { color: var(--ink); font-style: normal; border-bottom: 2px solid var(--green); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.hero-note { margin-top: 18px; font-size: .74rem; color: var(--ink-faint); letter-spacing: .05em; }
.hero-vial { position: relative; text-align: center; }
.hero-vial img { animation: bob 3.4s ease-in-out infinite; filter: drop-shadow(0 18px 40px rgba(67,224,138,.35)); }
@keyframes bob { 50% { transform: translateY(-14px); } }
.vial-glow {
  position: absolute; inset: 12% 8%; z-index: -1; border-radius: 50%;
  background: radial-gradient(circle, rgba(67,224,138,.28), transparent 65%);
  animation: glowpulse 3.4s ease-in-out infinite;
}
@keyframes glowpulse { 50% { opacity: .55; transform: scale(1.1); } }

/* ── teaser / game frame ────────────────────────────────── */
.teaser { padding-top: 30px; }
.game-frame {
  background: var(--bg-2); border: 2px solid var(--line);
  padding: 0 0 12px; box-shadow: 0 24px 70px rgba(0,0,0,.45);
}
.game-hud {
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  padding: 12px 18px; font-size: .85rem; color: var(--ink-dim);
  border-bottom: 2px solid var(--line); background: var(--bg-3);
}
.game-hud b { color: var(--ink); }
.game-stage { position: relative; }
#game { display: block; width: 100%; height: auto; background: #0c1014; touch-action: manipulation; }
.game-overlay {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  background: rgba(12,16,20,.82); backdrop-filter: blur(2px);
}
.game-overlay.hidden { display: none; }
.overlay-card { text-align: center; padding: 34px 38px; background: var(--bg-2); border: 2px solid var(--line); max-width: 92%; }
.overlay-card h3 { font-family: var(--disp); font-size: 1.7rem; margin-bottom: 10px; color: var(--green); }
.overlay-card p { color: var(--ink-dim); margin-bottom: 20px; font-size: .95rem; }
.game-bar {
  display: flex; gap: 18px; flex-wrap: wrap; align-items: stretch;
  padding: 14px 14px 6px;
}
.tower-btns { display: flex; gap: 10px; flex: 1; }
.tower-btn {
  flex: 1; min-width: 96px; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  background: var(--bg-3); border: none; color: var(--ink);
  padding: 10px 6px; box-shadow: inset 0 0 0 2px var(--line);
  transition: box-shadow .12s ease, background .12s ease;
}
.tower-btn:hover { box-shadow: inset 0 0 0 2px var(--ink-faint); }
.tower-btn.sel { background: rgba(67,224,138,.12); box-shadow: inset 0 0 0 2px var(--green); }
.tower-btn.poor { opacity: .45; }
.tb-ico { font-size: 1.35rem; line-height: 1; }
.tb-name { font-size: .62rem; letter-spacing: .06em; color: var(--ink-dim); }
.tb-cost { font-size: .72rem; color: var(--green); }
.vaccine-module {
  flex: 1; min-width: 240px; display: flex; flex-direction: column; gap: 8px;
  padding: 10px 12px; background: var(--bg-3); box-shadow: inset 0 0 0 2px var(--line);
}
.vm-label { font-size: .72rem; color: var(--ink-dim); letter-spacing: .04em; }
.vm-label.hot { color: var(--red); animation: vmpulse-t 1s steps(2) infinite; }
@keyframes vmpulse-t { 50% { opacity: .5; } }
.vm-bar { height: 10px; background: var(--bg); box-shadow: inset 0 0 0 1.5px var(--line); }
.vm-fill { height: 100%; width: 0%; background: linear-gradient(90deg, var(--green-dk), var(--green)); transition: width .2s linear; }
.game-hint { padding: 10px 18px 2px; font-size: .72rem; color: var(--ink-faint); }
@media (max-width: 620px) {
  .overlay-card { padding: 16px 18px; }
  .overlay-card h3 { font-size: 1.05rem; }
  .overlay-card p { font-size: .78rem; margin-bottom: 12px; }
  .overlay-card .btn { padding: 10px 16px; font-size: .85rem; }
  .tb-name { display: none; }
  .tower-btn { min-width: 70px; }
}

/* ── mechanic ───────────────────────────────────────────── */
.mut-flow { display: flex; gap: 14px; align-items: stretch; }
@media (max-width: 860px) { .mut-flow { flex-direction: column; } .mut-arrow { transform: rotate(90deg); align-self: center; } }
.mut-step {
  flex: 1; padding: 26px 22px; background: var(--bg-2);
  box-shadow: inset 0 0 0 2px var(--line);
}
.mut-step.danger { box-shadow: inset 0 0 0 2px rgba(255,84,112,.45); background: rgba(255,84,112,.05); }
.mut-step.cure   { box-shadow: inset 0 0 0 2px rgba(67,224,138,.5);  background: rgba(67,224,138,.05); }
.mut-ico { font-size: 2rem; margin-bottom: 10px; }
.mut-step h4 { font-family: var(--disp); font-size: 1.2rem; margin-bottom: 8px; letter-spacing: .03em; }
.mut-step p { font-size: .92rem; color: var(--ink-dim); }
.mut-arrow { align-self: center; color: var(--ink-faint); font-size: 1.2rem; }
.mut-tag { margin-top: 26px; color: var(--green); font-size: .82rem; letter-spacing: .1em; }

/* ── roster ─────────────────────────────────────────────── */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; }
.card {
  padding: 24px 20px; background: var(--bg-2); box-shadow: inset 0 0 0 2px var(--line);
  transition: transform .15s ease, box-shadow .15s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: inset 0 0 0 2px var(--cyan-dk); }
.card.featured { box-shadow: inset 0 0 0 2px var(--green-dk); background: rgba(67,224,138,.05); }
.card.featured:hover { box-shadow: inset 0 0 0 2px var(--green); }
.card-ico { font-size: 1.9rem; margin-bottom: 10px; }
.card h4 { font-family: var(--disp); font-size: 1.05rem; letter-spacing: .04em; margin-bottom: 8px; }
.card p { font-size: .87rem; color: var(--ink-dim); margin-bottom: 14px; }
.card-tag { font-size: .66rem; letter-spacing: .12em; }
.body-map { margin-top: 52px; text-align: center; }
.organs { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; align-items: center; margin: 18px 0 14px; }
.organs i { color: var(--ink-faint); font-style: normal; font-size: .8rem; }
.organ {
  padding: 8px 14px; font-size: .8rem; border: 1.5px solid var(--line); color: var(--ink-dim);
  border-radius: 2px; background: var(--bg-2);
}
.organ.now { border-color: var(--green); color: var(--green); box-shadow: 0 0 16px rgba(67,224,138,.25); }
.organ.lock { opacity: .55; }
.organ.final { border-color: var(--cyan-dk); }
.body-map p { color: var(--ink-dim); font-size: .95rem; max-width: 560px; margin: 0 auto; }

/* ── how to play ────────────────────────────────────────── */
.steps { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; counter-reset: step; }
.steps li { padding: 24px 20px; background: var(--bg-2); border-left: 3px solid var(--green); }
.steps li b { color: var(--green); font-size: .8rem; letter-spacing: .15em; }
.steps h4 { font-family: var(--disp); font-size: 1.05rem; margin: 8px 0; letter-spacing: .03em; }
.steps p { font-size: .88rem; color: var(--ink-dim); }
.howto-note { margin-top: 30px; color: var(--ink-dim); max-width: 720px; }

/* ── rewards ────────────────────────────────────────────── */
.reward-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 760px) { .reward-cols { grid-template-columns: 1fr; } }
.reward-col { padding: 28px 26px; background: var(--bg-2); }
.reward-col.live { box-shadow: inset 0 0 0 2px var(--green-dk); }
.reward-col.soon { box-shadow: inset 0 0 0 2px var(--cyan-dk); opacity: .92; }
.rc-status { font-size: .72rem; letter-spacing: .1em; }
.rc-head h3 { font-family: var(--disp); font-size: 1.4rem; margin: 8px 0 16px; letter-spacing: .03em; }
.reward-col ul { list-style: none; }
.reward-col li { padding: 8px 0 8px 22px; position: relative; font-size: .95rem; color: var(--ink-dim); border-top: 1px solid var(--line); }
.reward-col li::before { content: "▸"; position: absolute; left: 0; color: var(--green); }
.reward-col.soon li::before { color: var(--cyan); }
.redline {
  margin-top: 18px; padding: 20px 24px; border: 2px dashed rgba(255,84,112,.5);
  background: rgba(255,84,112,.05);
}
.redline p { font-size: .84rem; color: var(--ink-dim); }
.redline b { color: var(--red); }

/* ── token ──────────────────────────────────────────────── */
.token-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 760px) { .token-cols { grid-template-columns: 1fr; } }
.token-col { padding: 28px 26px; background: var(--bg-2); box-shadow: inset 0 0 0 2px var(--line); }
.token-col h3 { font-size: .95rem; letter-spacing: .1em; margin-bottom: 16px; }
.token-col ul { list-style: none; }
.token-col li { padding: 9px 0 9px 24px; position: relative; font-size: .95rem; color: var(--ink-dim); border-top: 1px solid var(--line); }
.token-col.does li::before   { content: "✓"; position: absolute; left: 0; color: var(--green); }
.token-col.cannot li::before { content: "✕"; position: absolute; left: 0; color: var(--red); }
.ca-box { margin-top: 18px; padding: 30px 28px; background: var(--bg-2); box-shadow: inset 0 0 0 2px var(--line); text-align: center; }
.ca-placeholder {
  margin: 16px auto 14px; padding: 18px 22px; max-width: 640px;
  border: 2px dashed var(--green-dk); color: var(--ink); font-size: .95rem;
  background: rgba(67,224,138,.04);
}
.ca-blink { color: var(--green); animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.ca-warn { font-size: .78rem; color: var(--amber); margin-bottom: 8px; }
.ca-facts { font-size: .74rem; color: var(--ink-faint); letter-spacing: .06em; }

/* ── roadmap ────────────────────────────────────────────── */
.phases { list-style: none; display: grid; gap: 12px; }
.phase {
  display: grid; grid-template-columns: 200px 1fr; gap: 8px 26px; align-items: baseline;
  padding: 22px 26px; background: var(--bg-2); box-shadow: inset 0 0 0 2px var(--line);
}
@media (max-width: 700px) { .phase { grid-template-columns: 1fr; } }
.phase.now { box-shadow: inset 0 0 0 2px var(--green); background: rgba(67,224,138,.05); }
.ph-tag { font-size: .72rem; color: var(--ink-faint); letter-spacing: .12em; }
.phase.now .ph-tag { color: var(--green); }
.phase h4 { font-family: var(--disp); font-size: 1.15rem; letter-spacing: .03em; }
.phase p { grid-column: 2; font-size: .9rem; color: var(--ink-dim); }
@media (max-width: 700px) { .phase p { grid-column: 1; } }

/* ── final CTA / footer ─────────────────────────────────── */
.final-cta { text-align: center; }
.final-cta img { animation: bob 3.4s ease-in-out infinite; margin-bottom: 8px; }
.final-cta h2 { margin-bottom: 26px; }
.socials { display: flex; gap: 26px; justify-content: center; flex-wrap: wrap; margin-top: 30px; }
.socials a { color: var(--ink-dim); font-size: .85rem; }
.socials a:hover { color: var(--green); }
.footer { border-top: 2px solid var(--line); padding: 48px clamp(16px, 5vw, 64px) 32px; background: var(--bg-2); }
.foot-grid { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 28px; }
.footer h5 { font-size: .72rem; letter-spacing: .14em; color: var(--green); margin-bottom: 10px; }
.footer p { font-size: .78rem; color: var(--ink-faint); }
.foot-base { max-width: 1180px; margin: 34px auto 0; font-size: .72rem; color: var(--ink-faint); letter-spacing: .08em; border-top: 1px solid var(--line); padding-top: 20px; }


/* ── app gate modal — the Vaccine Lab is app-only ────────── */
.app-gate {
  position: fixed; inset: 0; z-index: 60; display: none;
  align-items: center; justify-content: center; padding: 20px;
  background: rgba(8,11,14,.86); backdrop-filter: blur(4px);
}
.app-gate.open { display: flex; animation: gatein .18s ease-out; }
@keyframes gatein { from { opacity: 0; } to { opacity: 1; } }
.gate-card {
  max-width: 520px; width: 100%; padding: 32px 30px; text-align: center;
  background: var(--bg-2); box-shadow: inset 0 0 0 2px var(--green-dk), 0 30px 80px rgba(0,0,0,.6);
  clip-path: polygon(
    0 var(--px), var(--px) var(--px), var(--px) 0,
    calc(100% - var(--px)) 0, calc(100% - var(--px)) var(--px), 100% var(--px),
    100% calc(100% - var(--px)), calc(100% - var(--px)) calc(100% - var(--px)),
    calc(100% - var(--px)) 100%, var(--px) 100%, var(--px) calc(100% - var(--px)),
    0 calc(100% - var(--px))
  );
}
.gate-ico { font-size: 2.6rem; margin-bottom: 10px; animation: bob 2.6s ease-in-out infinite; }
.gate-card h3 {
  font-family: var(--disp); font-size: clamp(1rem, 2.6vw, 1.35rem);
  line-height: 1.3; color: var(--green); margin-bottom: 14px;
}
.gate-card > p { color: var(--ink-dim); font-size: .95rem; margin-bottom: 18px; }
.gate-list { list-style: none; text-align: left; margin: 0 auto 22px; max-width: 420px; }
.gate-list li {
  position: relative; padding: 9px 0 9px 24px; font-size: .9rem;
  color: var(--ink-dim); border-top: 1px solid var(--line);
}
.gate-list li::before { content: "▸"; position: absolute; left: 0; color: var(--green); }
.gate-list b { color: var(--ink); }
.gate-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.gate-note { margin-top: 16px; font-size: .72rem; color: var(--ink-faint); letter-spacing: .06em; }
@media (max-width: 520px) {
  .gate-card { padding: 24px 20px; }
  .gate-cta .btn { width: 100%; }
}