/* ============================================================
   FourBrain Forge Studios — main.css
   Tema: Cyber Neural (preto/indigo + ciano->violeta)
   ============================================================ */

/* ---------- Tokens ---------- */
:root{
  --bg:#05060d;
  --bg-2:#080b16;
  --bg-3:#0c1124;
  --surface:rgba(255,255,255,.035);
  --surface-2:rgba(255,255,255,.06);
  --border:rgba(140,160,255,.12);
  --border-strong:rgba(140,160,255,.28);

  --cyan:#22d3ee;
  --blue:#6366f1;
  --violet:#a855f7;
  --grad:linear-gradient(135deg,#22d3ee 0%,#6366f1 50%,#a855f7 100%);
  --grad-soft:linear-gradient(135deg,rgba(34,211,238,.16),rgba(168,85,247,.16));

  --text:#eaeefb;
  --muted:#a6afd0;
  --faint:#6f779c;

  --font-display:'Space Grotesk',system-ui,sans-serif;
  --font-body:'Inter',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,monospace;

  --radius:18px;
  --radius-lg:26px;
  --maxw:1180px;
  --shadow:0 24px 60px -20px rgba(0,0,0,.65);
  --glow:0 0 40px -8px rgba(99,102,241,.55);
  --ease:cubic-bezier(.2,.7,.2,1);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-body);
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
  overflow-x:hidden;
  min-height:100vh;
  position:relative;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.1;font-weight:700;letter-spacing:-.02em}
::selection{background:rgba(99,102,241,.45);color:#fff}

.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(20px,5vw,40px)}
section[id],[id]{scroll-margin-top:96px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}

/* ---------- Backgrounds ---------- */
#neural-bg{position:fixed;inset:0;width:100%;height:100%;z-index:-3;opacity:.85}
.bg-grid{
  position:fixed;inset:0;z-index:-2;pointer-events:none;
  background-image:linear-gradient(rgba(99,102,241,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(99,102,241,.05) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 90% 70% at 50% 0%,#000 30%,transparent 80%);
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 0%,#000 30%,transparent 80%);
}
.bg-aurora{
  position:fixed;z-index:-2;pointer-events:none;inset:0;
  background:
    radial-gradient(50% 50% at 15% 10%,rgba(34,211,238,.16),transparent 60%),
    radial-gradient(45% 45% at 85% 15%,rgba(168,85,247,.16),transparent 60%),
    radial-gradient(60% 50% at 50% 100%,rgba(99,102,241,.14),transparent 65%);
  filter:blur(10px);
}
.cursor-glow{
  position:fixed;top:0;left:0;width:480px;height:480px;border-radius:50%;
  z-index:-1;pointer-events:none;transform:translate(-50%,-50%);
  background:radial-gradient(circle,rgba(99,102,241,.18),transparent 60%);
  transition:opacity .4s;opacity:0;will-change:transform;
}
.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:0;z-index:1000;
  background:var(--grad);box-shadow:0 0 14px rgba(99,102,241,.8);
}

/* ---------- Buttons ---------- */
.btn{
  --pad-y:.78em;--pad-x:1.4em;
  display:inline-flex;align-items:center;gap:.55em;
  font-family:var(--font-display);font-weight:600;font-size:.96rem;
  padding:var(--pad-y) var(--pad-x);border-radius:999px;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s,border-color .25s;
  white-space:nowrap;position:relative;line-height:1;
}
.btn svg{transition:transform .25s var(--ease)}
.btn:hover svg{transform:translateX(3px)}
.btn-lg{--pad-y:1em;--pad-x:1.9em;font-size:1.02rem}
.btn-sm{--pad-y:.62em;--pad-x:1.05em;font-size:.86rem}
.btn-primary{background:var(--grad);color:#06070e;box-shadow:0 10px 30px -8px rgba(99,102,241,.7)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 40px -10px rgba(99,102,241,.85)}
.btn-outline{border:1px solid var(--border-strong);color:var(--text);background:var(--surface)}
.btn-outline:hover{border-color:var(--cyan);background:var(--surface-2);transform:translateY(-3px)}
.btn-ghost{border:1px solid var(--border);color:var(--text)}
.btn-ghost:hover{border-color:var(--cyan);color:#fff}
.btn-disabled{background:var(--surface);color:var(--faint);border:1px solid var(--border);cursor:not-allowed}

/* ---------- Header / Nav ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:900;
  transition:background .35s,backdrop-filter .35s,border-color .35s,padding .35s;
  border-bottom:1px solid transparent;padding:8px 0;
}
.site-header.scrolled{
  background:rgba(7,9,18,.72);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--border);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{filter:drop-shadow(0 0 10px rgba(99,102,241,.45));transition:transform .4s var(--ease)}
.brand:hover .brand-mark{transform:rotate(8deg) scale(1.05)}
.brand-text{font-family:var(--font-display);font-weight:700;font-size:1.22rem;letter-spacing:-.01em}
.brand-text strong{font-weight:700;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;margin-left:.18em}
.nav{display:flex;align-items:center;gap:30px}
.nav>a:not(.btn){font-size:.96rem;color:var(--muted);font-weight:500;position:relative;transition:color .25s}
.nav>a:not(.btn)::after{content:"";position:absolute;left:0;bottom:-6px;height:2px;width:0;background:var(--grad);transition:width .3s var(--ease)}
.nav>a:not(.btn):hover{color:#fff}
.nav>a:not(.btn):hover::after{width:100%}
.nav-cta{margin-left:6px}

.nav-toggle{display:none;flex-direction:column;gap:5px;width:44px;height:44px;align-items:center;justify-content:center;border-radius:12px;border:1px solid var(--border)}
.nav-toggle span{width:22px;height:2px;background:var(--text);border-radius:2px;transition:transform .3s,opacity .3s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding:120px 0 80px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-family:var(--font-mono);font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);padding:7px 14px;border:1px solid var(--border);border-radius:999px;background:var(--surface)}
.eyebrow-dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);animation:pulse 2s infinite}
.hero-title{font-size:clamp(2.2rem,6.4vw,4.6rem);margin:24px 0 22px;letter-spacing:-.03em}
.hero-lead{font-size:clamp(1.02rem,1.6vw,1.18rem);color:var(--muted);max-width:30em;margin-bottom:34px}
.hero-lead strong{color:var(--text);font-weight:600}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:46px}
.hero-meta{display:flex;gap:38px;flex-wrap:wrap}
.hero-stat strong{font-family:var(--font-display);font-size:2rem;display:block;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.hero-stat span{font-size:.82rem;color:var(--faint);text-transform:uppercase;letter-spacing:.08em}

/* Orbe neural */
.hero-visual{display:flex;justify-content:center;align-items:center}
.orb{position:relative;width:min(420px,80vw);aspect-ratio:1}
.orb-core{position:absolute;inset:0;display:grid;place-items:center;animation:float 6s ease-in-out infinite}
.orb-core img{width:62%;height:auto;filter:drop-shadow(0 0 40px rgba(99,102,241,.6))}
.orb-ring{position:absolute;inset:0;border-radius:50%;border:1px solid var(--border-strong)}
.orb-ring-1{animation:spin 18s linear infinite}
.orb-ring-2{inset:11%;border-color:rgba(34,211,238,.22);border-style:dashed;animation:spin 26s linear infinite reverse}
.orb-ring-3{inset:24%;border-color:rgba(168,85,247,.25);animation:spin 14s linear infinite}
.orb-ring::before{content:"";position:absolute;top:-4px;left:50%;width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);transform:translateX(-50%)}
.orb-node{position:absolute;width:14px;height:14px;border-radius:50%;background:var(--grad);box-shadow:0 0 16px rgba(99,102,241,.8)}
.orb-node-1{top:2%;left:50%;transform:translateX(-50%);animation:bob 4s ease-in-out infinite}
.orb-node-2{top:50%;right:0;transform:translateY(-50%);animation:bob 5s ease-in-out infinite .4s}
.orb-node-3{bottom:0;left:50%;transform:translateX(-50%);animation:bob 4.4s ease-in-out infinite .8s}
.orb-node-4{top:50%;left:0;transform:translateY(-50%);animation:bob 5.2s ease-in-out infinite .2s}

.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);opacity:.6;transition:opacity .3s}
.scroll-hint:hover{opacity:1}
.mouse{display:block;width:26px;height:42px;border:2px solid var(--border-strong);border-radius:14px;position:relative}
.mouse span{position:absolute;top:8px;left:50%;width:4px;height:8px;background:var(--cyan);border-radius:2px;transform:translateX(-50%);animation:scrolldot 1.8s infinite}

/* ---------- Marquee ---------- */
.marquee{overflow:hidden;border-block:1px solid var(--border);background:rgba(8,11,22,.5);padding:18px 0;mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);-webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.marquee-track{display:flex;align-items:center;gap:40px;width:max-content;animation:marquee 28s linear infinite;font-family:var(--font-display);font-weight:700;font-size:1.3rem;letter-spacing:.08em;color:var(--faint)}
.marquee-track .dot{color:var(--cyan);font-size:.7rem}

/* ---------- Sections ---------- */
.section{padding:clamp(70px,10vw,120px) 0}
.section-head{text-align:center;max-width:680px;margin:0 auto clamp(40px,6vw,64px)}
.section-kicker{display:inline-block;font-family:var(--font-mono);font-size:.8rem;letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);margin-bottom:14px}
.section-title{font-size:clamp(2rem,4.4vw,3.1rem)}
.section-sub{color:var(--muted);font-size:1.06rem;margin-top:16px}

/* ---------- Filter bar ---------- */
.filter-bar{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-bottom:42px}
.filter-btn{font-family:var(--font-display);font-weight:600;font-size:.92rem;padding:.62em 1.3em;border-radius:999px;border:1px solid var(--border);color:var(--muted);transition:all .25s var(--ease)}
.filter-btn:hover{color:#fff;border-color:var(--border-strong)}
.filter-btn.is-active{background:var(--grad);color:#06070e;border-color:transparent;box-shadow:0 8px 22px -8px rgba(99,102,241,.7)}

/* ---------- Games grid / cards ---------- */
.games-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:26px}
.game-card{
  position:relative;border-radius:var(--radius-lg);padding:24px;
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border:1px solid var(--border);overflow:hidden;
  display:flex;flex-direction:column;gap:18px;min-height:330px;
  transition:transform .4s var(--ease),border-color .4s,box-shadow .4s;
}
.game-card:hover,.game-card:focus-visible{transform:translateY(-8px);border-color:var(--border-strong);box-shadow:var(--shadow),var(--glow)}
.game-card-glow{position:absolute;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(99,102,241,.22),transparent 60%);top:var(--my,-40%);left:var(--mx,50%);transform:translate(-50%,-50%);opacity:0;transition:opacity .4s;pointer-events:none}
.game-card:hover .game-card-glow{opacity:1}
.game-card-border{position:absolute;inset:0;border-radius:var(--radius-lg);padding:1px;background:var(--grad);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .4s;pointer-events:none}
.game-card:hover .game-card-border{opacity:.6}
.game-card-top{display:flex;justify-content:space-between;align-items:flex-start}

.game-logo{width:84px;height:84px;border-radius:18px;overflow:hidden;display:grid;place-items:center;background:var(--bg-3);border:1px solid var(--border);flex-shrink:0}
.game-logo img{width:100%;height:100%;object-fit:cover}
.game-logo.is-placeholder{background:var(--grad-soft)}
.game-logo-initials{font-family:var(--font-display);font-weight:700;font-size:2rem;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}

.game-card-body{flex:1}
.game-badges{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:12px}
.badge{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.04em;padding:5px 10px;border-radius:7px;font-weight:500;border:1px solid transparent}
.badge-pc{color:#7fe7ff;background:rgba(34,211,238,.1);border-color:rgba(34,211,238,.3)}
.badge-mobile{color:#d4b6ff;background:rgba(168,85,247,.12);border-color:rgba(168,85,247,.32)}
.badge-featured{color:#ffd98a;background:rgba(255,193,87,.1);border-color:rgba(255,193,87,.32)}
.game-name{font-size:1.4rem;margin-bottom:8px}
.game-tagline{color:var(--muted);font-size:.95rem}
.game-card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto}
.game-details{font-family:var(--font-display);font-weight:600;font-size:.9rem;color:var(--muted);transition:color .25s}
.game-details:hover{color:var(--cyan)}
.game-card.is-hidden{display:none}
.games-empty-filter{text-align:center;color:var(--faint);margin-top:30px;font-family:var(--font-mono)}

/* ---------- Pillars ---------- */
.pillars{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:22px}
.pillar{position:relative;padding:30px 26px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);transition:transform .35s var(--ease),border-color .35s,background .35s}
.pillar:hover{transform:translateY(-6px);border-color:var(--border-strong);background:var(--surface-2)}
.pillar-icon{width:54px;height:54px;border-radius:14px;display:grid;place-items:center;background:var(--grad-soft);border:1px solid var(--border-strong);color:var(--cyan);margin-bottom:18px}
.pillar-icon svg{width:26px;height:26px}
.pillar h3{font-size:1.22rem;margin-bottom:8px}
.pillar p{color:var(--muted);font-size:.95rem}

/* ---------- CTA ---------- */
.cta-card{position:relative;text-align:center;padding:clamp(40px,7vw,72px);border-radius:var(--radius-lg);border:1px solid var(--border-strong);background:linear-gradient(180deg,rgba(99,102,241,.1),rgba(255,255,255,.02));overflow:hidden}
.cta-glow{position:absolute;inset:0;background:radial-gradient(60% 80% at 50% 0%,rgba(99,102,241,.25),transparent 70%);pointer-events:none}
.cta-card h2{font-size:clamp(1.8rem,3.6vw,2.6rem);margin-bottom:14px;position:relative}
.cta-card p{color:var(--muted);max-width:36em;margin:0 auto 30px;position:relative}
.cta-card .btn{position:relative}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--border);background:rgba(6,8,16,.6);padding-top:64px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand{margin-bottom:18px}
.footer-tag{color:var(--muted);max-width:26em;margin-bottom:14px}
.footer-mail{color:var(--cyan);font-family:var(--font-mono);font-size:.9rem;border-bottom:1px solid transparent;transition:border-color .25s}
.footer-mail:hover{border-color:var(--cyan)}
.footer-col h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.12em;color:var(--faint);margin-bottom:16px}
.footer-col a,.footer-line{display:block;color:var(--muted);font-size:.95rem;padding:5px 0;transition:color .25s}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:24px 0 30px;border-top:1px solid var(--border);font-size:.85rem;color:var(--faint)}
.footer-forged .spark{color:var(--cyan)}

/* ---------- Page hero (catalogo/detalhe) ---------- */
.page-hero{padding:150px 0 40px;text-align:center}
.page-title{font-size:clamp(2.4rem,5.5vw,3.6rem);margin-top:14px}
.back-link{display:inline-block;color:var(--muted);font-family:var(--font-display);font-weight:600;margin-bottom:20px;transition:color .25s}
.back-link:hover{color:var(--cyan)}

/* ---------- Game detail ---------- */
.game-detail{position:relative;display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:center;padding:clamp(28px,5vw,52px);border-radius:var(--radius-lg);border:1px solid var(--border);background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));overflow:hidden}
.game-detail-glow{position:absolute;inset:0;background:radial-gradient(50% 60% at 18% 30%,rgba(99,102,241,.2),transparent 70%);pointer-events:none}
.game-logo-lg{width:100%;height:auto;aspect-ratio:1;border-radius:24px;max-width:300px}
.game-logo-lg .game-logo-initials{font-size:5rem}
.game-detail-info{position:relative}
.game-detail-title{font-size:clamp(2rem,4.5vw,3rem);margin:14px 0 10px}
.game-detail-tagline{font-size:1.2rem;color:var(--cyan);margin-bottom:18px}
.game-detail-desc{color:var(--muted);margin-bottom:30px;max-width:42em}
.game-detail-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- Empty / Error ---------- */
.empty-state{text-align:center;padding:60px 20px;border:1px dashed var(--border-strong);border-radius:var(--radius-lg);background:var(--surface)}
.empty-emblem,.error-emblem{margin:0 auto 22px;filter:drop-shadow(0 0 24px rgba(99,102,241,.5));animation:float 6s ease-in-out infinite}
.empty-state h3{font-size:1.5rem;margin-bottom:8px}
.empty-state p{color:var(--muted)}
.error-page{min-height:80vh;display:grid;place-items:center;text-align:center;padding:140px 0 80px}
.error-code{font-size:clamp(5rem,18vw,9rem);line-height:1;font-family:var(--font-display)}
.error-page h2{font-size:clamp(1.4rem,3vw,2rem);margin:6px 0 12px}
.error-page p{color:var(--muted);margin-bottom:30px}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- Keyframes ---------- */
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.7)}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes bob{0%,100%{transform:translate(var(--tx,0),var(--ty,0)) scale(1)}50%{transform:translate(var(--tx,0),var(--ty,0)) scale(1.35)}}
@keyframes scrolldot{0%{opacity:1;top:8px}80%{opacity:0;top:22px}100%{opacity:0;top:8px}}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ---------- Responsivo ---------- */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;text-align:center;gap:30px}
  .hero-copy{order:2}
  .hero-visual{order:1}
  .orb{width:min(320px,70vw)}
  .hero-actions,.hero-meta{justify-content:center}
  .hero-lead{margin-inline:auto}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
  .game-detail{grid-template-columns:1fr;text-align:center;gap:28px;justify-items:center}
  .game-detail-actions{justify-content:center}
}
@media (max-width:760px){
  .nav-toggle{display:flex}
  .nav{
    position:fixed;inset:0 0 0 auto;width:min(82vw,340px);
    flex-direction:column;align-items:flex-start;justify-content:center;gap:26px;
    background:rgba(8,11,22,.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
    padding:40px;transform:translateX(100%);transition:transform .4s var(--ease);
    border-left:1px solid var(--border);z-index:899;
  }
  .nav.open{transform:translateX(0)}
  .nav>a:not(.btn){font-size:1.3rem;font-family:var(--font-display);font-weight:600;color:var(--text)}
  .nav-cta{margin-left:0;margin-top:10px}
  body.nav-open{overflow:hidden}
}
@media (max-width:520px){
  .hero{padding-top:110px}
  .hero-meta{gap:24px}
  .hero-stat strong{font-size:1.6rem}
  .hero-actions{flex-direction:column;align-items:stretch;width:100%}
  .hero-actions .btn{justify-content:center;width:100%}
  .games-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .btn-lg{--pad-x:1.5em}
  .game-detail-actions{flex-direction:column;align-items:stretch}
  .game-detail-actions .btn{justify-content:center}
}

/* ---------- Acessibilidade / motion ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
  #neural-bg{display:none}
}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}