/* ============================================================================
   home.css — "DANK TANK ARCADE" landing page.
   Neon arcade-cabinet vibe: near-black CRT, electric magenta/cyan/amber neon,
   pixel display font (Press Start 2P) for the marquee + labels, a synthwave
   grid floor, hard scanlines, chunky glowing cabinet buttons. Still smooth,
   never muddy — an after-hours arcade that someone keeps very clean.
   ============================================================================ */

:root {
  --ink: #f3f0ff;
  --ink-dim: #9aa6d6;
  --bg0: #05030c;
  --bg1: #0a0820;
  --pink: #ff3ca6;
  --cyan: #2af0ff;
  --violet: #b06bff;
  --amber: #ffd23c;
  --lime: #7dffb0;
  --glass: rgba(18, 14, 40, 0.55);
  --glass-line: rgba(42, 240, 255, 0.30);
  --display: 'Press Start 2P', 'Unbounded', system-ui, sans-serif;
  --soft: 'Unbounded', system-ui, sans-serif;
  --mono: 'Space Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(120% 80% at 50% -10%, #1a0b3a 0%, var(--bg1) 42%, var(--bg0) 100%);
  color: var(--ink);
  font-family: var(--mono);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }

/* ---- Atmosphere: neon glow blobs, synthwave grid, grain, hard scanlines ---- */
.atmosphere { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.blob {
  position: absolute;
  width: 52vw; height: 52vw;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.55;
  mix-blend-mode: screen;
  animation: drift 24s ease-in-out infinite;
}
.b1 { background: radial-gradient(circle, var(--pink), transparent 60%); top: -18vw; left: -10vw; }
.b2 { background: radial-gradient(circle, var(--cyan), transparent 60%); top: 14vw; right: -16vw; animation-delay: -7s; }
.b3 { background: radial-gradient(circle, var(--violet), transparent 60%); bottom: -20vw; left: 20vw; animation-delay: -13s; }
.b4 { background: radial-gradient(circle, var(--amber), transparent 62%); top: 40vw; left: 40vw; width: 34vw; height: 34vw; opacity: 0.32; animation-delay: -19s; }
@keyframes drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(6vw, 4vw) scale(1.14); }
  66% { transform: translate(-5vw, 7vw) scale(0.92); }
}

/* synthwave perspective grid rising from the bottom — pure CSS, on the grain layer */
.grain {
  position: absolute; inset: 0;
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  opacity: 0.06; mix-blend-mode: overlay;
}
.atmosphere::after {
  content: '';
  position: absolute; left: -10%; right: -10%; bottom: -2%; height: 46vh;
  background-image:
    repeating-linear-gradient(90deg, rgba(42,240,255,0.16) 0 2px, transparent 2px 84px),
    repeating-linear-gradient(0deg,  rgba(176,107,255,0.14) 0 2px, transparent 2px 56px);
  transform: perspective(40vh) rotateX(74deg);
  transform-origin: bottom center;
  -webkit-mask-image: linear-gradient(to top, #000 8%, transparent 80%);
          mask-image: linear-gradient(to top, #000 8%, transparent 80%);
  opacity: 0.5;
}
/* hard CRT scanlines + a faint screen-curve vignette */
.scan {
  position: absolute; inset: 0;
  background: repeating-linear-gradient(to bottom, rgba(0,0,0,0.30) 0 1px, transparent 1px 3px);
  opacity: 0.5;
  animation: roll 8s linear infinite;
}
.scan::after {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(120% 120% at 50% 50%, transparent 58%, rgba(0,0,0,0.55) 100%);
}
@keyframes roll { from { background-position-y: 0; } to { background-position-y: 3px; } }

/* ---- Top bar -------------------------------------------------------------- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px clamp(18px, 4vw, 56px);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(42,240,255,0.12);
}
.brand {
  font-family: var(--display); font-weight: 400; letter-spacing: 1px;
  font-size: clamp(11px, 1.3vw, 15px);
  display: flex; align-items: center; gap: 12px;
  color: var(--cyan);
  text-shadow: 0 0 8px rgba(42,240,255,0.8), 0 0 18px rgba(42,240,255,0.5);
}
.brand .dot {
  width: 12px; height: 12px; border-radius: 2px;
  background: var(--pink);
  box-shadow: 0 0 10px var(--pink), 0 0 22px var(--pink);
  animation: pulse 1s steps(2) infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.35} }
.topnav { display: flex; align-items: center; gap: clamp(14px, 2vw, 28px); font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase; }
.topnav a { color: var(--ink-dim); transition: color .15s, text-shadow .15s; }
.topnav a:hover { color: var(--cyan); text-shadow: 0 0 10px var(--cyan); }
#music-toggle {
  font-family: var(--mono); text-transform: uppercase; letter-spacing: 1.5px; font-size: 12px;
  display: flex; align-items: center; gap: 8px;
  background: var(--glass); color: var(--ink-dim);
  border: 2px solid var(--glass-line); border-radius: 4px;
  padding: 7px 14px; cursor: pointer; transition: color .15s, border-color .15s, box-shadow .15s;
}
#music-toggle:hover { box-shadow: 0 0 14px rgba(42,240,255,0.4); }
#music-toggle[aria-pressed="true"] { color: var(--cyan); border-color: var(--cyan); box-shadow: 0 0 14px rgba(42,240,255,0.5) inset; }
.eq { display: inline-flex; align-items: flex-end; gap: 2px; height: 12px; }
.eq i { width: 3px; height: 4px; background: currentColor; }
#music-toggle[aria-pressed="true"] .eq i { animation: eq .9s steps(3) infinite; }
.eq i:nth-child(2){ animation-delay:.15s } .eq i:nth-child(3){ animation-delay:.3s } .eq i:nth-child(4){ animation-delay:.45s }
@keyframes eq { 0%,100%{height:3px} 50%{height:12px} }

/* ---- Hero ----------------------------------------------------------------- */
.hero {
  position: relative; z-index: 1;
  min-height: 88vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
  padding: 40px clamp(18px, 5vw, 56px) 30px;
}
.kicker {
  font-family: var(--display); font-size: clamp(8px, 1vw, 11px); letter-spacing: 3px;
  color: var(--amber); text-transform: uppercase; margin: 0 0 26px;
  text-shadow: 0 0 10px rgba(255,210,60,0.7);
  animation: blink 1.2s steps(2) infinite;
}
@keyframes blink { 0%,60%{opacity:1} 61%,100%{opacity:.25} }
.wordmark {
  font-family: var(--display); font-weight: 400;
  font-size: clamp(34px, 9vw, 120px); line-height: 1.04; margin: 0;
  letter-spacing: 1px;
  color: #fff;
  text-shadow:
    0 0 6px #fff,
    0 0 18px var(--pink),
    0 0 40px var(--pink),
    0 0 70px rgba(255,60,166,0.7),
    5px 5px 0 #6a0fa0,
    8px 8px 0 rgba(8,4,20,0.6);
  animation: flicker 5s infinite steps(1);
}
@keyframes flicker {
  0%, 88%, 100% { opacity: 1; }
  89% { opacity: 0.65; }
  90% { opacity: 1; }
  93% { opacity: 0.82; }
}
.tagline { max-width: 600px; margin: 28px auto 0; font-family: var(--soft); font-size: clamp(14px, 1.7vw, 19px); color: var(--ink-dim); line-height: 1.55; }

.cta { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; justify-content: center; margin-top: 38px; }
/* chunky neon "cabinet" button with a hard pixel shadow */
.enter {
  font-family: var(--display); font-weight: 400; font-size: clamp(11px, 1.4vw, 15px);
  letter-spacing: 1px; text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 12px;
  padding: 18px 28px; border-radius: 6px;
  color: #14021a;
  background: linear-gradient(180deg, #ff8fd0 0%, var(--pink) 55%, #d11e7e 100%);
  border: 2px solid #ffd6ee;
  box-shadow: 0 0 0 2px #6a0fa0, 6px 6px 0 #6a0fa0, 0 0 26px rgba(255,60,166,0.6);
  transition: transform .08s steps(2), box-shadow .12s, filter .12s;
}
.enter:hover { transform: translate(-2px,-2px); filter: brightness(1.06); box-shadow: 0 0 0 2px #6a0fa0, 8px 8px 0 #6a0fa0, 0 0 38px rgba(255,60,166,0.85); }
.enter:active { transform: translate(3px,3px); box-shadow: 0 0 0 2px #6a0fa0, 1px 1px 0 #6a0fa0, 0 0 20px rgba(255,60,166,0.6); }
.enter.big { margin-top: 34px; }
.ghost {
  font-family: var(--display); font-size: clamp(9px, 1.1vw, 12px); letter-spacing: 1px; text-transform: uppercase;
  color: var(--cyan);
  padding: 16px 20px; border-radius: 6px;
  background: rgba(42,240,255,0.06);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 2px rgba(42,240,255,0.15), 0 0 18px rgba(42,240,255,0.35);
  transition: background .15s, color .15s, box-shadow .15s;
}
.ghost:hover { background: var(--cyan); color: #03121a; box-shadow: 0 0 24px rgba(42,240,255,0.8); }

.ticker {
  display: flex; gap: 30px; list-style: none; padding: 0; margin: 52px 0 0;
  font-family: var(--display); font-size: 10px; letter-spacing: 2px; text-transform: uppercase; color: var(--cyan);
  max-width: 90vw; overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  text-shadow: 0 0 8px rgba(42,240,255,0.5);
}
.ticker li { white-space: nowrap; animation: marquee 16s linear infinite; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-360px); } }

/* ---- Reveal on load ------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(22px); animation: rise .9s cubic-bezier(.2,.8,.2,1) forwards; animation-delay: var(--d, 0s); }
@keyframes rise { to { opacity: 1; transform: translateY(0); } }

/* ---- Sections ------------------------------------------------------------- */
section { position: relative; z-index: 1; }
.section-title {
  font-family: var(--display); font-weight: 400; font-size: clamp(16px, 2.6vw, 30px);
  text-align: center; margin: 0 0 46px; letter-spacing: 1px; text-transform: uppercase;
  color: var(--ink);
  text-shadow: 0 0 10px rgba(176,107,255,0.6), 3px 3px 0 rgba(8,4,20,0.6);
}
.floor { padding: 86px clamp(18px, 5vw, 56px) 40px; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 22px; max-width: 1100px; margin: 0 auto; }
/* arcade-cabinet tiles: neon border, hard offset shadow, scanline sheen */
.card {
  position: relative; padding: 26px 22px 22px; border-radius: 8px;
  background: var(--glass);
  border: 2px solid var(--accent, var(--pink));
  box-shadow: 5px 5px 0 rgba(8,4,20,0.7), 0 0 18px color-mix(in srgb, var(--accent, var(--pink)) 35%, transparent) inset;
  overflow: hidden;
  transition: transform .1s steps(2), box-shadow .15s;
}
.card::before {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(to bottom, rgba(255,255,255,0.04) 0 1px, transparent 1px 3px);
}
.card::after {
  content: ''; position: absolute; width: 150px; height: 150px; border-radius: 50%;
  right: -55px; top: -55px; background: var(--accent, var(--pink)); filter: blur(48px); opacity: .35; transition: opacity .2s;
}
.c-campaign { --accent: var(--amber); }
.c-coop { --accent: var(--lime); }
.c-versus { --accent: var(--pink); }
.c-online { --accent: var(--cyan); }
.card:hover { transform: translate(-3px,-3px); box-shadow: 8px 8px 0 rgba(8,4,20,0.7), 0 0 26px color-mix(in srgb, var(--accent, var(--pink)) 55%, transparent); }
.card:hover::after { opacity: .55; }
.card .num { font-family: var(--display); font-size: 13px; color: var(--accent, var(--ink-dim)); letter-spacing: 1px; text-shadow: 0 0 8px currentColor; }
.card h3 { font-family: var(--display); font-weight: 400; font-size: 16px; margin: 16px 0 12px; letter-spacing: 1px; text-transform: uppercase; }
.card p { margin: 0 0 18px; font-family: var(--soft); font-size: 13.5px; line-height: 1.6; color: var(--ink-dim); }
.card .go { font-family: var(--display); font-size: 10px; letter-spacing: 1px; color: var(--accent); text-transform: uppercase; text-shadow: 0 0 8px currentColor; }

.rules { padding: 60px clamp(18px, 5vw, 56px) 96px; max-width: 820px; margin: 0 auto; text-align: center; }
.rule-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; margin: 0 auto 26px; }
.rule {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  padding: 20px 14px; border-radius: 8px;
  background: var(--glass); border: 2px solid var(--glass-line);
}
.rule kbd {
  font-family: var(--display); font-size: 11px; font-weight: 400;
  padding: 8px 11px; border-radius: 4px; color: #03121a;
  background: var(--cyan); border: 2px solid #aef6ff;
  box-shadow: 0 3px 0 #1296a8, 0 0 12px rgba(42,240,255,0.6);
}
.rule span { font-family: var(--soft); font-size: 13px; color: var(--ink-dim); letter-spacing: .5px; }
.fine { font-family: var(--soft); font-size: 13.5px; color: var(--ink-dim); line-height: 1.7; max-width: 560px; margin: 0 auto; }

.foot {
  position: relative; z-index: 1;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  padding: 26px clamp(18px, 5vw, 56px); border-top: 1px solid rgba(42,240,255,0.18);
  font-size: 11px; letter-spacing: 1px; color: var(--ink-dim); text-transform: uppercase;
}
.brand.small { font-size: 11px; }
.brand.small .dot { width: 9px; height: 9px; }

@media (prefers-reduced-motion: reduce) {
  .blob, .ticker li, .reveal, .wordmark, .brand .dot, .eq i, .kicker, .scan { animation: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---- Navbar skirmish ------------------------------------------------------
   A tiny tank rolls out of the blinking brand square, drives past the logo and
   shells an AI tank parked by the nav. Pure decoration: it sits BEHIND the bar
   text and never eats pointer events. JS (home.js) drives the choreography. */
.navtank-stage {
  position: absolute; inset: 0;
  z-index: 0;                 /* behind brand + nav (which get z-index:2 below) */
  overflow: hidden;
  pointer-events: none;
}
.brand, .topnav { position: relative; z-index: 2; }   /* text rides over the tanks */
.nav-skirmish .brand .dot { visibility: hidden; }      /* the tank replaces the square */

/* Everything is centred on the navbar's mid-line — that's the barrel/fire line. */
.navtank-stage .nt-player,
.navtank-stage .nt-enemy {
  position: absolute; left: 0; top: 50%; margin-top: -11px;
  height: 22px; width: auto;
  will-change: transform; transform: translateX(-90px);
  filter: drop-shadow(0 0 4px rgba(255,110,199,.5));
}
.navtank-stage .nt-enemy { filter: drop-shadow(0 0 5px rgba(255,92,92,.6)); }
.navtank-stage .nt-player svg, .navtank-stage .nt-enemy svg { display: block; height: 22px; width: auto; }

.navtank-stage .nt-bullet {
  position: absolute; left: 0; top: 50%; margin-top: -2px;
  width: 13px; height: 4px; border-radius: 2px;
  background: linear-gradient(90deg, rgba(255,255,255,0), #fff 35%, #ff6ec7);
  box-shadow: 0 0 9px 2px rgba(255,110,199,.95), 0 0 4px #fff;
  opacity: 0; will-change: transform;
}
.navtank-stage .nt-flash {
  position: absolute; left: 0; top: 50%; margin-top: -9px; margin-left: -9px;
  width: 18px; height: 18px; border-radius: 50%;
  background: radial-gradient(circle, #fff 10%, #ffd86a 40%, rgba(255,150,60,0) 70%);
  opacity: 0; will-change: transform, opacity;
}
.navtank-stage .nt-boom {
  position: absolute; left: 0; top: 50%; margin-top: -14px; margin-left: -14px;
  width: 28px; height: 28px; border-radius: 50%;
  background: radial-gradient(circle, #fff 8%, #ffd86a 32%, #ff7a3c 58%, rgba(255,90,40,0) 74%);
  opacity: 0; will-change: transform, opacity;
}
@media (prefers-reduced-motion: reduce) { .navtank-stage { display: none !important; } }
@media (max-width: 600px) {
  .navtank-stage { display: none; }
  .nav-skirmish .brand .dot { visibility: visible; }   /* restore the square on mobile */
}