/* RetroBOX — arcade-neon lane. Mobile-first 390px, RTL. */
:root{
  --bg:#070b14; --bg2:#0b1120; --panel:#101830;
  --ink:#eef2ff; --muted:#9aa7c7;
  --cyan:#2de2ff; --magenta:#ff3df0; --gold:#ffd23d; --wa:#25d366;
  --line:rgba(45,226,255,.18);
  --px:"Rubik Pixels","Heebo",sans-serif;
  --en:"Press Start 2P",monospace;
  --body:"Heebo",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{background:var(--bg);color:var(--ink);font:400 17px/1.75 var(--body);overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--cyan)}
h1,h2{font-family:var(--px);font-weight:400;line-height:1.15;letter-spacing:.5px}
h3{font-weight:800;font-size:1.15rem;margin-bottom:.4rem}

/* pixel sprites stay crisp */
.card-sprite,.invaders img,.fl,.hud-coin{image-rendering:pixelated}

/* ---------- boot screen ---------- */
.boot{position:fixed;inset:0;z-index:100;background:#04060c;display:grid;place-content:center;justify-items:center;gap:22px;cursor:pointer;transition:opacity .45s,visibility .45s}
.boot.off{opacity:0;visibility:hidden}
.boot-logo{width:min(320px,70vw)}
.boot-press{font-family:var(--en);font-size:14px;color:var(--gold);animation:blink 1.05s steps(2) infinite}
.boot-hint{font-size:.8rem;color:var(--muted)}
@keyframes blink{50%{opacity:0}}

/* ---------- HUD ---------- */
.hud{position:fixed;top:0;right:0;left:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 16px;background:rgba(7,11,20,.82);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.hud-logo img{height:26px;width:auto}
.hud-right{display:flex;align-items:center;gap:14px}
.hud-item{font-family:var(--en);font-size:9px;color:var(--muted);display:flex;align-items:center;gap:6px}
.hud-item b{color:var(--gold);font-weight:400}
.hud-coin{height:16px;width:auto}
.hud-cta{font-family:var(--body);font-weight:800;font-size:.85rem;color:#04120a;background:var(--wa);padding:.45rem .9rem;border-radius:8px;text-decoration:none;white-space:nowrap}
@media (max-width:520px){.hud-item:first-child{display:none}}

/* ---------- shared level layout ---------- */
main{padding-top:0}
.level{padding:4.5rem 1.25rem;max-width:1080px;margin:0 auto}
.level-alt{background:var(--bg2);max-width:none}
.level-alt>*{max-width:1080px;margin-inline:auto}
.level-head{text-align:center;margin-bottom:2.5rem}
.level-tag{font-family:var(--en);font-size:10px;color:var(--magenta);letter-spacing:2px;margin-bottom:.9rem}
.level-tag-boss{color:var(--gold)}
h2{font-size:clamp(1.7rem,5.5vw,2.6rem);color:var(--ink)}
.level-sub{color:var(--muted);margin-top:.7rem}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;padding:5.5rem 1.25rem 4rem;overflow:hidden}
.hero-inner{display:grid;gap:2.5rem;max-width:1080px;margin:0 auto;align-items:center}
@media (min-width:900px){.hero-inner{grid-template-columns:1.1fr .9fr}}
.tag{font-family:var(--en);font-size:10px;color:var(--cyan);letter-spacing:2px;margin-bottom:1.1rem}
h1{font-size:clamp(2.1rem,7.5vw,3.6rem);margin-bottom:1.1rem}
.neon{color:var(--cyan);text-shadow:0 0 18px rgba(45,226,255,.55),0 0 46px rgba(45,226,255,.25)}
.lead{color:var(--muted);max-width:34rem;margin-bottom:1.6rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:.9rem;align-items:center;margin-bottom:2rem}
.btn-wa{display:inline-flex;align-items:center;gap:.6rem;background:var(--wa);color:#04120a;font-weight:800;font-size:1.05rem;padding:.85rem 1.5rem;border-radius:12px;text-decoration:none;box-shadow:0 0 0 0 rgba(37,211,102,.5);transition:transform .15s,box-shadow .3s}
.btn-wa:hover{transform:translateY(-2px);box-shadow:0 8px 28px -6px rgba(37,211,102,.55)}
.btn-wa-big{font-size:1.2rem;padding:1.05rem 2rem}
.btn-ghost{color:var(--ink);text-decoration:none;font-weight:600;border:1px solid var(--line);padding:.8rem 1.2rem;border-radius:12px;transition:border-color .2s}
.btn-ghost:hover{border-color:var(--cyan)}
.hero-stats{display:flex;gap:2rem}
.hero-stats div{display:grid;gap:2px}
.hero-stats b{font-family:var(--en);font-size:14px;color:var(--gold);font-weight:400}
.hero-stats span{font-family:var(--en);font-size:8px;color:var(--muted)}
.hero-visual{position:relative}
.hero-machine{width:min(520px,100%);margin-inline:auto;border-radius:18px;box-shadow:0 30px 80px -20px rgba(255,61,240,.35),0 10px 40px -10px rgba(45,226,255,.25)}

/* floating sprites */
.fl{position:absolute;width:64px;opacity:.9;z-index:1;pointer-events:none}
.fl-ship{top:14%;left:6%;animation:floaty 5.5s ease-in-out infinite}
.fl-crab{top:16%;left:38%;width:56px;animation:floaty 6.5s ease-in-out infinite reverse}
.fl-chomper{bottom:12%;left:12%;width:52px;animation:floaty 7s ease-in-out infinite}
@keyframes floaty{50%{transform:translateY(-18px)}}
@media (max-width:700px){
  .fl{width:42px;opacity:.55}
  .fl-ship{top:auto;bottom:38%;left:4%}
  .fl-crab{width:38px;top:auto;bottom:26%;right:5%}
  .fl-chomper{display:none}
}

/* stars + synth grid floor */
.stars{position:absolute;inset:0;pointer-events:none;background-image:
 radial-gradient(1.5px 1.5px at 20% 30%,rgba(255,255,255,.7) 50%,transparent 51%),
 radial-gradient(1px 1px at 70% 20%,rgba(255,255,255,.5) 50%,transparent 51%),
 radial-gradient(1.5px 1.5px at 85% 60%,rgba(255,255,255,.6) 50%,transparent 51%),
 radial-gradient(1px 1px at 40% 70%,rgba(255,255,255,.4) 50%,transparent 51%),
 radial-gradient(1px 1px at 10% 80%,rgba(255,255,255,.5) 50%,transparent 51%),
 radial-gradient(1.5px 1.5px at 55% 45%,rgba(255,255,255,.45) 50%,transparent 51%),
 radial-gradient(1px 1px at 90% 85%,rgba(255,255,255,.5) 50%,transparent 51%)}
.grid-floor{background-color:var(--bg)}
.grid-floor::after{content:"";position:absolute;left:0;right:0;bottom:0;height:34%;pointer-events:none;
 background:linear-gradient(transparent,rgba(255,61,240,.07)),
 repeating-linear-gradient(90deg,rgba(45,226,255,.14) 0 1px,transparent 1px 72px),
 repeating-linear-gradient(0deg,rgba(45,226,255,.12) 0 1px,transparent 1px 46px);
 transform:perspective(320px) rotateX(48deg);transform-origin:bottom;mask-image:linear-gradient(transparent,#000 40%)}
.boss.grid-floor,.hero.grid-floor{isolation:isolate}

/* ---------- cards ---------- */
.cards{display:grid;gap:1.1rem}
@media (min-width:820px){.cards{grid-template-columns:repeat(3,1fr)}}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:1.6rem 1.4rem;transition:transform .2s,border-color .2s}
.card:hover{transform:translateY(-4px);border-color:rgba(45,226,255,.45)}
.card-sprite{height:56px;width:auto;margin-bottom:1rem}
.card p{color:var(--muted);font-size:.95rem}

/* ---------- steps ---------- */
.steps{list-style:none;display:grid;gap:1.1rem;padding:0;margin-bottom:2.5rem}
@media (min-width:820px){.steps{grid-template-columns:repeat(3,1fr)}}
.step{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:1.6rem 1.4rem}
.step-num{font-family:var(--en);font-size:20px;color:var(--magenta);display:block;margin-bottom:.9rem}
.step p{color:var(--muted);font-size:.95rem}
.build-visual{max-width:640px;margin:0 auto;text-align:center}
.build-visual img{border-radius:16px;box-shadow:0 20px 60px -18px rgba(45,226,255,.3)}
.build-visual figcaption{color:var(--muted);font-size:.85rem;margin-top:.8rem}

/* ---------- marquee + invaders ---------- */
.marquee{overflow:hidden;border-block:1px solid var(--line);padding:1rem 0;margin-bottom:3rem}
.marquee-track{display:flex;gap:2.5rem;width:max-content;font-family:var(--en);font-size:11px;color:var(--cyan);animation:scrollx 30s linear infinite}
.marquee-track span{white-space:nowrap}
@keyframes scrollx{to{transform:translateX(50%)}}
.invaders{display:flex;justify-content:center;gap:clamp(1rem,6vw,3rem);align-items:flex-end}
.invaders img{height:52px;width:auto;animation:floaty 4.5s ease-in-out infinite}
.invaders img:nth-child(2){animation-delay:.4s}
.invaders img:nth-child(3){animation-delay:.8s}
.invaders img:nth-child(4){animation-delay:1.2s}
.invaders img:nth-child(5){animation-delay:1.6s}
@media (max-width:520px){.invaders img{height:38px}}

/* ---------- boss ---------- */
.boss{position:relative;overflow:hidden;background:var(--bg2);padding:5.5rem 1.25rem;text-align:center}
.boss-inner{position:relative;z-index:1;max-width:640px;margin:0 auto;display:grid;justify-items:center;gap:1.2rem}
.boss p{color:var(--muted)}
.boss-note{font-family:var(--en);font-size:8px;color:var(--muted);letter-spacing:1.5px;margin-top:.6rem}

/* ---------- footer ---------- */
.footer{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:1rem 2rem;padding:2.2rem 1.25rem;border-top:1px solid var(--line);color:var(--muted);font-size:.85rem}
.footer-logo{height:22px;width:auto}
.footer-credit a{color:var(--muted)}

/* ---------- scanlines (very subtle) ---------- */
.scanlines{position:fixed;inset:0;z-index:90;pointer-events:none;opacity:.05;background:repeating-linear-gradient(0deg,transparent 0 2px,#000 2px 3px)}

/* ---------- reveals ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .6s steps(6),transform .6s steps(6)}
.reveal.on{opacity:1;transform:none}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .fl,.invaders img,.boot-press{animation:none}
  .marquee-track{animation:none}
  .boot{display:none}
}