/* ============================================================
   VOID NOTÍCIAS — dark premium / 3D / AI news
   Projeto fictício de portfólio · VOID Systems Agency
   ============================================================ */

:root{
  --void-950:#05060b;
  --void-900:#080a12;
  --void-850:#0b0e18;
  --void-800:#10131f;
  --surface:rgba(255,255,255,.035);
  --surface-2:rgba(255,255,255,.06);
  --border:rgba(255,255,255,.09);
  --border-strong:rgba(255,255,255,.16);

  --text:#eceefb;
  --muted:#9aa0bd;
  --faint:#666c88;

  --accent:#8b7bff;      /* violeta elétrico VOID */
  --accent-2:#22d3ee;    /* ciano */
  --accent-3:#f0a63c;    /* âmbar (alerta) */
  --accent-soft:rgba(139,123,255,.14);

  --grad:linear-gradient(120deg,#a596ff 0%,#8b7bff 40%,#22d3ee 100%);
  --grad-line:linear-gradient(90deg,transparent,var(--accent),var(--accent-2),transparent);

  --radius:18px;
  --radius-sm:12px;
  --shadow:0 30px 80px -30px rgba(0,0,0,.85);
  --ring:0 0 0 1px var(--border);

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

  --maxw:1180px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:var(--void-950);
  color:var(--text);
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:var(--accent);color:#0a0a12}

/* ---------- ambient backgrounds ---------- */
.bg-grid{
  position:fixed;inset:0;z-index:-3;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 25%,transparent 78%);
}
.bg-aurora{
  position:fixed;inset:0;z-index:-4;pointer-events:none;
  background:
    radial-gradient(48% 42% at 18% 8%,rgba(139,123,255,.22),transparent 60%),
    radial-gradient(42% 40% at 88% 18%,rgba(34,211,238,.16),transparent 60%),
    radial-gradient(60% 55% at 50% 108%,rgba(139,123,255,.14),transparent 60%);
  animation:auroraShift 18s ease-in-out infinite alternate;
}
@keyframes auroraShift{
  from{transform:translate3d(0,0,0) scale(1);filter:hue-rotate(0deg)}
  to{transform:translate3d(0,-2%,0) scale(1.05);filter:hue-rotate(18deg)}
}
#particles{position:fixed;inset:0;z-index:-2;pointer-events:none;opacity:.55}

.cursor-glow{
  position:fixed;top:0;left:0;width:420px;height:420px;z-index:-1;
  border-radius:50%;pointer-events:none;transform:translate(-50%,-50%);
  background:radial-gradient(circle,rgba(139,123,255,.10),transparent 65%);
  transition:opacity .4s;opacity:0;
}

/* ---------- layout helpers ---------- */
.section{max-width:var(--maxw);margin:0 auto;padding:120px 26px}
.kicker{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.28em;
  color:var(--accent-2);text-transform:uppercase;display:inline-block;margin-bottom:16px;
}
.section-head{max-width:640px;margin-bottom:56px}
.section-head h2{
  font-family:var(--font-display);font-size:clamp(1.9rem,4.4vw,3rem);
  line-height:1.08;letter-spacing:-.02em;font-weight:700;
}
.section-head p{color:var(--muted);margin-top:16px;font-size:1.08rem;max-width:520px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- buttons ---------- */
.btn{
  font-family:var(--font-body);font-weight:600;font-size:.95rem;
  border:none;cursor:pointer;border-radius:12px;padding:14px 24px;
  transition:transform .25s cubic-bezier(.2,.8,.2,1),box-shadow .25s,filter .25s;
  display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
}
.btn-primary{
  background:var(--grad);color:#0a0a12;
  box-shadow:0 10px 30px -8px rgba(139,123,255,.6);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 16px 40px -8px rgba(139,123,255,.75)}
.btn-primary:active{transform:translateY(0)}
.btn-nav{
  background:var(--surface-2);color:var(--text);padding:10px 18px;
  border:1px solid var(--border-strong);font-size:.9rem;
}
.btn-nav:hover{border-color:var(--accent);color:#fff;transform:translateY(-1px)}

/* ---------- NAV ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:16px clamp(20px,4vw,44px);
  transition:background .35s,border-color .35s,padding .35s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(6,7,13,.72);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--border);padding-top:12px;padding-bottom:12px;
}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{display:grid;place-items:center;filter:drop-shadow(0 4px 14px rgba(139,123,255,.5))}
.brand-name{
  font-family:var(--font-display);font-weight:700;letter-spacing:.02em;font-size:1.05rem;
}
.brand-slash{color:var(--accent);margin:0 2px}
.nav-links{display:flex;gap:30px}
.nav-links a{color:var(--muted);font-size:.92rem;font-weight:500;position:relative;transition:color .25s}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;
  background:var(--grad);border-radius:2px;transition:width .3s;
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{width:100%}

.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:var(--text);border-radius:2px;transition:.3s}
.nav-toggle.open span:first-child{transform:translateY(3.5px) rotate(45deg)}
.nav-toggle.open span:last-child{transform:translateY(-3.5px) rotate(-45deg)}

.mobile-menu{
  position:fixed;inset:0 0 0 auto;z-index:45;width:min(78vw,320px);
  background:rgba(8,10,18,.96);backdrop-filter:blur(20px);
  border-left:1px solid var(--border);
  display:flex;flex-direction:column;gap:8px;padding:100px 28px 40px;
  transform:translateX(100%);transition:transform .38s cubic-bezier(.2,.8,.2,1);
}
.mobile-menu.open{transform:translateX(0)}
.mobile-menu a{padding:14px 4px;color:var(--muted);font-size:1.05rem;border-bottom:1px solid var(--border)}
.mobile-menu a:hover{color:var(--text)}
.mobile-menu .btn{margin-top:18px;justify-content:center;border-bottom:none}

/* ---------- HERO ---------- */
.hero{
  max-width:var(--maxw);margin:0 auto;
  padding:160px 26px 60px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
}
.badge{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.12em;
  color:var(--muted);background:var(--surface);border:1px solid var(--border);
  padding:7px 14px;border-radius:100px;text-transform:uppercase;
}
.badge #liveClock{color:var(--accent-2)}
.pulse{width:8px;height:8px;border-radius:50%;background:#ff4d6d;box-shadow:0 0 0 0 rgba(255,77,109,.7);animation:pulse 1.8s infinite}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,77,109,.6)}
  70%{box-shadow:0 0 0 10px rgba(255,77,109,0)}
  100%{box-shadow:0 0 0 0 rgba(255,77,109,0)}
}
.hero h1{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(2.5rem,5.6vw,4.05rem);line-height:1.03;letter-spacing:-.03em;
  margin:22px 0 0;
}
.line-through-soft{position:relative;color:var(--muted)}
.line-through-soft::after{
  content:"";position:absolute;left:-2%;right:-2%;top:52%;height:3px;
  background:var(--grad);border-radius:3px;transform:scaleX(0);transform-origin:left;
  animation:strike 1s .9s forwards cubic-bezier(.2,.8,.2,1);
}
@keyframes strike{to{transform:scaleX(1)}}
.hero-sub{color:var(--muted);font-size:1.14rem;margin-top:24px;max-width:520px}
.hero-sub strong{color:var(--text)}

/* signup */
.signup{margin-top:30px;max-width:480px}
.signup-field{
  display:flex;gap:8px;background:var(--surface);border:1px solid var(--border-strong);
  border-radius:14px;padding:7px;transition:border-color .3s,box-shadow .3s;
}
.signup-field:focus-within{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.signup-field input{
  flex:1;background:none;border:none;outline:none;color:var(--text);
  font-family:var(--font-body);font-size:1rem;padding:8px 14px;min-width:0;
}
.signup-field input::placeholder{color:var(--faint)}
.signup-note{font-size:.8rem;color:var(--faint);margin-top:10px;padding-left:4px}
.signup-note.error{color:#ff6b81}
.signup-note.ok{color:var(--accent-2)}
.signup-lg{margin:26px auto 0}
.signup-lg .signup-field input{font-size:1.05rem}

/* hero stats */
.hero-stats{display:flex;gap:34px;margin-top:40px;flex-wrap:wrap}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats strong{font-family:var(--font-display);font-size:1.7rem;font-weight:700;color:#fff}
.hero-stats span{font-size:.82rem;color:var(--faint);max-width:150px}

/* ---------- HERO 3D SCENE ---------- */
.hero-scene{perspective:1400px;height:480px;position:relative}
.scene-tilt{
  position:relative;width:100%;height:100%;
  transform-style:preserve-3d;
  transform:rotateX(8deg) rotateY(-14deg);
  transition:transform .3s ease-out;
}
.orb{
  position:absolute;top:50%;left:50%;width:220px;height:220px;
  transform:translate(-50%,-50%) translateZ(-40px);
}
.orb-core{
  position:absolute;inset:24%;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,#c9c0ff,#8b7bff 40%,#3a2f8f 75%,#120e2e);
  box-shadow:0 0 60px rgba(139,123,255,.6),inset -10px -14px 30px rgba(0,0,0,.6);
  animation:float 6s ease-in-out infinite;
}
.orb-ring{
  position:absolute;inset:0;border-radius:50%;border:1px solid rgba(139,123,255,.35);
}
.orb-ring.r1{animation:spin 14s linear infinite;border-top-color:var(--accent-2)}
.orb-ring.r2{inset:-16%;animation:spin 22s linear reverse infinite;border-left-color:var(--accent)}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes float{50%{transform:translateY(-14px)}}

.glass-card{
  position:absolute;width:230px;padding:16px 18px;border-radius:16px;
  background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.03));
  border:1px solid var(--border-strong);backdrop-filter:blur(10px);
  box-shadow:var(--shadow);
  animation:float 7s ease-in-out infinite;
}
.gc-1{top:2%;left:-4%;animation-delay:.2s}
.gc-2{bottom:6%;right:-6%;animation-delay:1.4s}
.gc-3{bottom:-4%;left:6%;width:210px;animation-delay:.8s}
.gc-head{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.16em;color:var(--muted);display:flex;align-items:center;gap:7px;margin-bottom:8px}
.gc-title{font-family:var(--font-display);font-weight:600;font-size:.92rem;line-height:1.25}
.gc-meta{font-size:.68rem;color:var(--faint);margin-top:9px}
.dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}
.dot.cyan{background:var(--accent-2)}
.dot.amber{background:var(--accent-3)}

.mini-chart{
  position:absolute;top:44%;right:2%;display:flex;align-items:flex-end;gap:5px;height:60px;
  padding:12px;border-radius:14px;background:rgba(255,255,255,.05);border:1px solid var(--border);
  backdrop-filter:blur(8px);animation:float 8s ease-in-out infinite .5s;
}
.mini-chart span{width:7px;background:var(--grad);border-radius:3px;animation:bar 2.4s ease-in-out infinite}
.mini-chart span:nth-child(1){height:30%;animation-delay:0s}
.mini-chart span:nth-child(2){height:55%;animation-delay:.2s}
.mini-chart span:nth-child(3){height:40%;animation-delay:.4s}
.mini-chart span:nth-child(4){height:75%;animation-delay:.6s}
.mini-chart span:nth-child(5){height:50%;animation-delay:.8s}
.mini-chart span:nth-child(6){height:90%;animation-delay:1s}
.mini-chart span:nth-child(7){height:65%;animation-delay:1.2s}
@keyframes bar{50%{transform:scaleY(.55)}}

/* ---------- TICKER ---------- */
.ticker{
  border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  background:rgba(255,255,255,.02);overflow:hidden;padding:14px 0;
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
}
.ticker-track{display:flex;gap:52px;white-space:nowrap;width:max-content;animation:ticker 34s linear infinite}
.ticker:hover .ticker-track{animation-play-state:paused}
.ticker-track span{font-family:var(--font-mono);font-size:.85rem;color:var(--muted);letter-spacing:.02em}
@keyframes ticker{to{transform:translateX(-50%)}}

/* ---------- SERVIÇOS cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{
  position:relative;padding:32px 26px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--border);overflow:hidden;
  transition:transform .35s cubic-bezier(.2,.8,.2,1),border-color .35s,background .35s;
}
.card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:var(--grad);opacity:0;transition:opacity .35s;
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
}
.card:hover{transform:translateY(-6px);background:var(--surface-2)}
.card:hover::before{opacity:.9}
.card-ico{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;
  font-size:1.5rem;color:var(--accent-2);margin-bottom:20px;
  background:radial-gradient(circle at 30% 30%,rgba(139,123,255,.25),rgba(34,211,238,.08));
  border:1px solid var(--border-strong);
}
.card h3{font-family:var(--font-display);font-size:1.18rem;font-weight:600;margin-bottom:10px}
.card p{color:var(--muted);font-size:.96rem}

/* ---------- GALERIA ---------- */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:36px}
.chip{
  font-family:var(--font-body);font-size:.86rem;font-weight:500;cursor:pointer;
  padding:9px 18px;border-radius:100px;color:var(--muted);
  background:var(--surface);border:1px solid var(--border);transition:.25s;
}
.chip:hover{color:var(--text);border-color:var(--border-strong)}
.chip.is-active{background:var(--grad);color:#0a0a12;border-color:transparent;font-weight:600}

.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news{
  border-radius:var(--radius);overflow:hidden;background:var(--surface);
  border:1px solid var(--border);transition:transform .4s cubic-bezier(.2,.8,.2,1),border-color .4s,box-shadow .4s;
  display:flex;flex-direction:column;
}
.news.hide{display:none}
.news:hover{transform:translateY(-6px);border-color:var(--border-strong);box-shadow:var(--shadow)}
.news-thumb{
  position:relative;aspect-ratio:16/10;display:flex;align-items:flex-end;padding:14px;
  overflow:hidden;
}
.news-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(5,6,11,.65));
}
.news-cat{
  position:relative;z-index:1;font-family:var(--font-mono);font-size:.66rem;letter-spacing:.16em;
  text-transform:uppercase;color:#fff;background:rgba(5,6,11,.55);border:1px solid var(--border-strong);
  padding:5px 11px;border-radius:100px;backdrop-filter:blur(6px);
}
/* placeholder premium por categoria (gradiente + textura) */
.thumb-a{background:radial-gradient(120% 120% at 10% 10%,#4b3ecb,#1a1440 55%,#0a0818)}
.thumb-b{background:radial-gradient(120% 120% at 90% 10%,#0f6d78,#0a2a35 55%,#07131a)}
.thumb-c{background:radial-gradient(120% 120% at 10% 90%,#8a5a1c,#33220f 55%,#160f07)}
.thumb-d{background:radial-gradient(120% 120% at 90% 90%,#5a3ecb,#241a4a 55%,#0d0a1e)}
.thumb-e{background:radial-gradient(120% 120% at 50% 10%,#3e5acb,#141d40 55%,#080b1a)}
.thumb-f{background:radial-gradient(120% 120% at 50% 90%,#b0421f,#3a170e 55%,#180a06)}
.news-thumb::before{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:26px 26px;
  mask-image:radial-gradient(circle at 70% 30%,#000,transparent 75%);
}
.news-body{padding:20px}
.news-body h3{font-family:var(--font-display);font-size:1.08rem;font-weight:600;line-height:1.25;margin-bottom:9px}
.news-body p{color:var(--muted);font-size:.9rem;margin-bottom:16px}
.news-meta{font-family:var(--font-mono);font-size:.72rem;color:var(--faint);display:flex;align-items:center;gap:8px}
.live-dot{width:7px;height:7px;border-radius:50%;background:#37e39b;box-shadow:0 0 8px #37e39b;animation:pulse 2s infinite}

/* ---------- CTA ---------- */
.cta{padding-bottom:140px}
.cta-inner{
  position:relative;text-align:center;max-width:760px;margin:0 auto;
  padding:70px 40px;border-radius:28px;overflow:hidden;
  background:linear-gradient(180deg,rgba(139,123,255,.10),rgba(255,255,255,.02));
  border:1px solid var(--border-strong);
}
.cta-glow{
  position:absolute;top:-40%;left:50%;transform:translateX(-50%);
  width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(139,123,255,.28),transparent 62%);
  pointer-events:none;
}
.cta-inner h2{font-family:var(--font-display);font-size:clamp(1.9rem,4.6vw,2.9rem);line-height:1.08;letter-spacing:-.02em}
.cta-inner p{color:var(--muted);margin-top:16px;max-width:480px;margin-inline:auto}
.cta-inner .signup{position:relative}
.cta-points{list-style:none;display:flex;gap:26px;justify-content:center;flex-wrap:wrap;margin-top:26px;color:var(--muted);font-size:.9rem}
.cta-points li{color:var(--accent-2)}

/* ---------- FOOTER ---------- */
.footer{border-top:1px solid var(--border);background:var(--void-900);padding:70px 26px 34px}
.footer-top{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.4fr 2fr;gap:50px}
.footer-brand .brand-name{font-size:1.2rem}
.footer-brand p{color:var(--muted);margin-top:14px;max-width:320px;font-size:.94rem}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.footer-cols h4{font-family:var(--font-display);font-size:.95rem;margin-bottom:14px}
.footer-cols a{display:block;color:var(--muted);font-size:.9rem;padding:5px 0;transition:color .2s}
.footer-cols a:hover{color:var(--accent-2)}
.footer-bottom{
  max-width:var(--maxw);margin:44px auto 0;padding-top:24px;border-top:1px solid var(--border);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:.82rem;color:var(--faint);
}
.footer-fake strong{color:var(--muted)}

/* ---------- toast ---------- */
.toast{
  position:fixed;bottom:26px;left:50%;transform:translate(-50%,140%);
  background:rgba(12,14,22,.95);border:1px solid var(--accent);backdrop-filter:blur(12px);
  color:var(--text);padding:14px 22px;border-radius:14px;font-size:.92rem;z-index:100;
  box-shadow:var(--shadow);transition:transform .45s cubic-bezier(.2,.8,.2,1);max-width:90vw;
}
.toast.show{transform:translate(-50%,0)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.2,.8,.2,1),transform .7s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:900px){
  .hero{grid-template-columns:1fr;padding-top:130px;gap:20px}
  .hero-scene{height:400px;order:2;margin-top:10px}
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .btn-nav{display:none}
  .cards,.gallery{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr;gap:34px}
  .section{padding:90px 22px}
}
@media(max-width:600px){
  .hero h1{font-size:clamp(2.1rem,9vw,2.8rem)}
  .cards,.gallery{grid-template-columns:1fr}
  .hero-stats{gap:22px}
  .hero-scene{height:340px}
  .glass-card{width:190px}
  .cta-inner{padding:48px 22px}
  .signup-field{flex-direction:column}
  .signup-field .btn{justify-content:center}
  .footer-bottom{flex-direction:column}
}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  .scene-tilt{transform:rotateX(6deg) rotateY(-10deg)}
}