/* ============================================================
   NEXACOS INTELLIGENCE — Layout & Componentes
   Depende de tokens.css. Estrutura: base → nav → hero →
   secções → footer → utilitários de animação. (PRD §4, §6)
   ============================================================ */

/* ===== Base ===== */
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background .5s ease, color .5s ease;
}

#nx-backdrop {
  position: fixed; inset: 0; z-index: -1;
  background: var(--bg);
  transition: background .5s ease;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -.025em;
  margin: 0;
}

a { color: inherit; text-decoration: none; }

.wrap { max-width: 1220px; margin: 0 auto; padding: 0 clamp(20px, 5vw, 48px); }

.kicker {
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--nx-cyan);
  display: inline-flex; align-items: center; gap: 10px;
}
.kicker::before { content: ""; width: 24px; height: 1px; background: var(--nx-cyan); }

.scene { perspective: 1400px; transform-style: preserve-3d; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--surface-2); color: var(--text);
  padding: 12px 20px; border-radius: var(--r-sm);
}
.skip-link:focus { left: 12px; top: 12px; }

/* ===== Botões ===== */
.btn {
  font-family: var(--font-body);
  font-weight: 600; font-size: .95rem;
  border: none; cursor: pointer;
  padding: 14px 26px; border-radius: var(--r-pill);
  display: inline-flex; align-items: center; gap: 9px;
  transition: .24s;
}
.btn-primary { background: var(--holo); color: #fff; box-shadow: var(--glow-violet); }
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(123,97,255,.5), 0 14px 46px rgba(123,97,255,.55);
}
.btn-ghost {
  background: color-mix(in srgb, var(--text) 5%, transparent);
  color: var(--text);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { border-color: var(--nx-violet); }

/* ===== Loader ===== */
#loader {
  position: fixed; inset: 0; z-index: 1000;
  background: var(--space-900);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 24px;
  transition: opacity .7s ease, visibility .7s;
}
#loader.gone { opacity: 0; visibility: hidden; }
#loader .em { animation: floaty 3s ease-in-out infinite; filter: drop-shadow(0 0 40px rgba(123,97,255,.55)); }
#loader .lt { font-family: var(--font-display); font-weight: 700; font-size: 1.3rem; color: var(--ink-100); }
#loader .lp { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .28em; color: var(--ink-400); text-transform: uppercase; }
#loader .barwrap { width: 200px; height: 3px; background: var(--space-700); border-radius: 99px; overflow: hidden; }
#loader .barwrap i { display: block; height: 100%; width: 40%; background: var(--holo); border-radius: 99px; animation: load 1.4s ease-in-out infinite; }

@keyframes load { 0% { transform: translateX(-120%); } 100% { transform: translateX(360%); } }
@keyframes floaty { 50% { transform: translateY(-12px); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 50% { transform: scale(1.06); } }

/* ===== Navegação ===== */
nav.bar { position: fixed; top: 0; left: 0; right: 0; z-index: 100; transition: .3s; padding: 14px 0; }
nav.bar.scrolled {
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border);
  padding: 9px 0;
}
nav.bar .inner { display: flex; align-items: center; justify-content: space-between; gap: 18px; }

.logo { display: flex; align-items: center; gap: 11px; }
.logo .name { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; letter-spacing: .01em; }
.logo .name small {
  display: block; font-family: var(--font-mono); font-weight: 400;
  font-size: 8px; letter-spacing: .36em; color: var(--text-dim); margin-top: 1px;
}

.navlinks { display: flex; gap: 2px; }
.navlinks a {
  font-size: .86rem; color: var(--text-dim);
  padding: 8px 13px; border-radius: var(--r-pill);
  transition: .2s; white-space: nowrap;
}
.navlinks a:hover { color: var(--text); background: color-mix(in srgb, var(--text) 6%, transparent); }

.nav-actions { display: flex; align-items: center; gap: 10px; }

.theme-toggle {
  font-family: var(--font-mono); font-size: .66rem; letter-spacing: .12em; cursor: pointer;
  background: var(--surface-2); color: var(--text);
  border: 1px solid var(--border); padding: 9px 14px; border-radius: var(--r-pill);
  display: flex; gap: 8px; align-items: center; transition: .2s;
}
.theme-toggle:hover { border-color: var(--nx-violet); box-shadow: var(--glow-violet); }
.theme-toggle .sun { width: 7px; height: 7px; border-radius: 50%; background: var(--nx-cyan); box-shadow: 0 0 8px var(--nx-cyan); }

/* hambúrguer (mobile) */
.menu-btn {
  display: none; cursor: pointer;
  background: var(--surface-2); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--r-pill);
  padding: 9px 13px; transition: .2s;
}
.menu-btn:hover { border-color: var(--nx-violet); }

.mobile-menu {
  display: none; position: fixed; top: 0; right: 0; bottom: 0; z-index: 150;
  width: min(320px, 84vw);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: var(--glass-blur);
  border-left: 1px solid var(--border);
  padding: 90px 28px 28px;
  flex-direction: column; gap: 4px;
  transform: translateX(100%);
  transition: transform .3s ease;
}
.mobile-menu.open { transform: translateX(0); }
.mobile-menu a { font-size: 1.05rem; color: var(--text-dim); padding: 12px 10px; border-radius: var(--r-sm); transition: .2s; }
.mobile-menu a:hover { color: var(--text); background: color-mix(in srgb, var(--text) 6%, transparent); }
.mobile-menu .close {
  position: absolute; top: 20px; right: 20px;
  background: none; border: 1px solid var(--border); border-radius: var(--r-pill);
  color: var(--text); font-size: 1rem; cursor: pointer; padding: 8px 13px;
}

@media (max-width: 1080px) {
  .navlinks { display: none; }
  .menu-btn { display: inline-flex; }
  .mobile-menu { display: flex; }
}
@media (max-width: 620px) {
  .nav-cta, .theme-toggle .lbl { display: none; }
}

/* ===== Hero ===== */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding-top: 90px; overflow: hidden; }

#stars { position: absolute; inset: 0; z-index: 0; }

.hero-glow {
  position: absolute; z-index: 1;
  width: 880px; height: 880px; left: 50%; top: 46%;
  transform: translate(-50%, -50%);
  background: var(--aurora); border-radius: 50%;
  filter: blur(95px); opacity: .32;
  animation: heroSpin 30s linear infinite;
  pointer-events: none;
}
@keyframes heroSpin { to { transform: translate(-50%, -50%) rotate(360deg); } }

.hero .wrap { position: relative; z-index: 3; text-align: center; transform-style: preserve-3d; }

.float-layer { will-change: transform; transition: transform .25s cubic-bezier(.2,.8,.2,1); }

.hero-pill {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 8px 8px 16px; border-radius: var(--r-pill);
  background: var(--glass-bg); border: 1px solid var(--glass-stroke);
  backdrop-filter: var(--glass-blur);
  font-size: .82rem; color: var(--text);
  margin-bottom: 30px;
  animation: floaty 5s ease-in-out infinite;
}
.hero-pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--nx-cyan); box-shadow: 0 0 10px var(--nx-cyan); }
.hero-pill .tagx {
  font-family: var(--font-mono); font-size: .68rem; letter-spacing: .1em;
  background: var(--holo-soft); padding: 4px 10px; border-radius: var(--r-pill); color: #fff;
}

.hero .eyebrow {
  font-family: var(--font-mono); font-size: .8rem; letter-spacing: .34em;
  text-transform: uppercase; color: var(--nx-cyan);
  display: block; margin-bottom: 18px;
}
.hero h1 { font-size: clamp(3rem, 9vw, 7rem); font-weight: 800; letter-spacing: -.045em; }
.hero p.sub { font-size: var(--t-body-lg); color: var(--text-dim); max-width: 56ch; margin: 26px auto 0; }
.hero .cta { display: flex; gap: 14px; justify-content: center; margin-top: 38px; flex-wrap: wrap; }

/* cartões flutuantes do hero */
.float-card {
  position: absolute; z-index: 4;
  background: var(--glass-bg); border: 1px solid var(--glass-stroke);
  border-radius: var(--r-lg); padding: 18px 20px;
  backdrop-filter: var(--glass-blur);
  width: 230px; text-align: left;
  box-shadow: 0 30px 70px rgba(0,0,0,.45);
  will-change: transform;
}
.float-card .mlab { font-family: var(--font-mono); font-size: .62rem; letter-spacing: .2em; color: var(--nx-cyan); text-transform: uppercase; }
.float-card b { font-family: var(--font-display); font-size: 1.1rem; display: block; margin: 6px 0 4px; }
.float-card p { font-size: .8rem; color: var(--text-dim); margin: 0; }
.fc-left  { left: clamp(-10px, 4vw, 90px); top: 30%; animation: floaty 6s ease-in-out infinite; }
.fc-right { right: clamp(-10px, 4vw, 90px); bottom: 22%; animation: floaty 7s ease-in-out infinite .5s; }
@media (max-width: 1180px) { .float-card { display: none; } }

/* ===== Secções (geral) ===== */
section { position: relative; padding: clamp(80px, 12vh, 140px) 0; }
.sec-head { max-width: 66ch; }
.sec-head h2 { font-size: var(--t-h2); margin-top: 16px; }
.sec-head p { color: var(--text-dim); font-size: var(--t-body-lg); margin-top: 18px; }
.center { text-align: center; margin-left: auto; margin-right: auto; }

/* ===== Sobre ===== */
.about { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
@media (max-width: 900px) { .about { grid-template-columns: 1fr; } }

.core-viz {
  aspect-ratio: 1; max-width: 440px; margin: 0 auto;
  position: relative; display: flex; align-items: center; justify-content: center;
}
.core-ring { position: absolute; border: 1px solid rgba(123,97,255,.3); border-radius: 50%; }
.core-ring.r1 { inset: 0;   animation: spin 24s linear infinite; }
.core-ring.r2 { inset: 14%; border-color: rgba(46,107,255,.35); animation: spin 18s linear infinite reverse; }
.core-ring.r3 { inset: 30%; border-color: rgba(47,230,224,.4); border-style: dashed; animation: spin 14s linear infinite; }
.core-orb {
  width: 40%; aspect-ratio: 1; border-radius: 50%;
  background: var(--holo-radial);
  box-shadow: 0 0 80px rgba(123,97,255,.6), inset 0 0 50px rgba(255,255,255,.25);
  animation: pulse 4s ease-in-out infinite;
}
.core-node { position: absolute; width: 12px; height: 12px; border-radius: 50%; background: var(--nx-cyan); box-shadow: 0 0 14px var(--nx-cyan); }

/* ===== Serviços ===== */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-top: 54px; }

.feature {
  background: var(--glass-bg); border: 1px solid var(--glass-stroke);
  border-radius: var(--r-lg); padding: 30px;
  backdrop-filter: var(--glass-blur);
  position: relative; overflow: hidden;
  transition: box-shadow .3s, border-color .3s;
  will-change: transform;
}
.feature::before {
  content: ""; position: absolute; top: -40%; right: -30%;
  width: 240px; height: 240px;
  background: var(--holo-radial); filter: blur(50px);
  opacity: 0; transition: .4s;
}
.feature:hover::before { opacity: .4; }
.feature .ic {
  width: 52px; height: 52px; border-radius: var(--r-md);
  background: var(--holo);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--glow-violet); margin-bottom: 20px; position: relative;
}
.feature h3 { font-size: 1.3rem; margin-bottom: 10px; }
.feature p { color: var(--text-dim); font-size: .93rem; margin: 0; position: relative; }
.feature .tag {
  display: inline-block; margin-top: 14px;
  font-family: var(--font-mono); font-size: .62rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--nx-cyan); border: 1px solid var(--glass-stroke);
  padding: 5px 10px; border-radius: var(--r-pill);
}

/* ===== Alcance ===== */
.reach { text-align: center; }
.reach-flags { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 40px; }
.flag {
  background: var(--glass-bg); border: 1px solid var(--glass-stroke);
  border-radius: var(--r-pill); padding: 12px 24px;
  backdrop-filter: var(--glass-blur);
  font-weight: 600; display: flex; align-items: center; gap: 10px;
  will-change: transform;
}
.flag .d { width: 8px; height: 8px; border-radius: 50%; background: var(--holo); }

/* ===== Banda de estatísticas ===== */
.band {
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--nx-violet) 6%, transparent), transparent);
}
.band-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
@media (max-width: 760px) { .band-grid { grid-template-columns: repeat(2, 1fr); } }
.band .b { text-align: center; }
.band .b b { font-family: var(--font-display); font-weight: 800; font-size: clamp(2.4rem, 5vw, 3.6rem); display: block; }
.band .b span { color: var(--text-dim); font-size: .86rem; }

/* ===== Roadmap ===== */
.road { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-top: 54px; }
.mod {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 28px;
  position: relative; will-change: transform;
  transition: border-color .3s;
}
.mod:hover { border-color: rgba(123,97,255,.5); }
.mod .mn { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .18em; color: var(--nx-cyan); text-transform: uppercase; }
.mod h3 { font-size: 1.3rem; margin: 12px 0 8px; }
.mod p { color: var(--text-dim); font-size: .9rem; margin: 0; }
.mod .st {
  position: absolute; top: 24px; right: 24px;
  font-family: var(--font-mono); font-size: .6rem; letter-spacing: .1em;
  padding: 4px 9px; border-radius: var(--r-pill);
}
.st.live { background: var(--holo-soft); color: #fff; }
.st.next { color: var(--text-dim); border: 1px solid var(--border); }

/* ===== Planos (sem preço fixo) ===== */
.planos { text-align: center; }
.plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 54px; text-align: left; }
@media (max-width: 860px) {
  .plan-grid { grid-template-columns: 1fr; max-width: 440px; margin-left: auto; margin-right: auto; }
}
.plan {
  background: var(--glass-bg); border: 1px solid var(--glass-stroke);
  border-radius: var(--r-lg); padding: 32px;
  backdrop-filter: var(--glass-blur);
  position: relative; will-change: transform;
}
.plan.feat { border-color: rgba(123,97,255,.6); box-shadow: var(--glow-violet); }
.plan.feat::after {
  content: "MAIS PROCURADO";
  position: absolute; top: -11px; left: 50%; transform: translateX(-50%);
  background: var(--holo); color: #fff;
  font-family: var(--font-mono); font-size: .6rem; letter-spacing: .16em;
  padding: 5px 14px; border-radius: var(--r-pill);
}
.plan h3 { font-size: 1.3rem; }
.plan .price { font-family: var(--font-display); font-weight: 800; font-size: 1.7rem; margin: 14px 0 6px; }
.plan .price.q { font-size: 1.5rem; }
.plan .desc { color: var(--text-dim); font-size: .88rem; margin: 0 0 22px; }
.plan ul { list-style: none; padding: 0; margin: 0 0 24px; }
.plan li { display: flex; gap: 10px; padding: 9px 0; color: var(--text); font-size: .9rem; border-top: 1px solid var(--border); }
.plan li svg { flex-shrink: 0; margin-top: 3px; }
.plan .btn { width: 100%; justify-content: center; }

/* ===== Contacto (CTA final) ===== */
.cta-final { text-align: center; position: relative; overflow: hidden; }
.cta-final::before { content: ""; position: absolute; inset: 0; background: var(--holo-radial); opacity: .16; }
.cta-final h2 { font-size: clamp(2.4rem, 6vw, 4.4rem); font-weight: 800; position: relative; }
.cta-final .sub { color: var(--text-dim); font-size: var(--t-body-lg); max-width: 50ch; margin: 20px auto 0; position: relative; }
.cta-final .cta { display: flex; gap: 14px; justify-content: center; margin-top: 38px; flex-wrap: wrap; position: relative; }
.cta-final .meta {
  position: relative; margin-top: 26px;
  font-family: var(--font-mono); font-size: .8rem;
  color: var(--text-dim); letter-spacing: .06em;
}

/* ===== Footer ===== */
footer { border-top: 1px solid var(--border); padding: 60px 0 40px; }
.foot-grid { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.foot-grid .col h4 {
  font-family: var(--font-mono); font-size: .68rem; letter-spacing: .16em;
  text-transform: uppercase; color: var(--text-dim); margin: 0 0 14px;
}
.foot-grid .col a { display: block; color: var(--text-dim); font-size: .9rem; padding: 5px 0; transition: .2s; }
.foot-grid .col a:hover { color: var(--text); }
.foot-brand { max-width: 300px; }
.foot-brand p { color: var(--text-dim); font-size: .86rem; }
.foot-bottom {
  border-top: 1px solid var(--border); margin-top: 40px; padding-top: 24px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  color: var(--text-dim); font-size: .8rem; font-family: var(--font-mono);
}

/* ===== Animação de entrada ===== */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }