/* ==========================================================================
   NuVoltz — Design tokens
   Fonte: identidade visual oficial (Claude Design — "NuVoltz Identidade")
   ========================================================================== */
:root{
  --ink:        #16161A;
  --ink-soft:   #1D1D22;
  --off-white:  #F6F3EE;
  --cream:      #EFEAE1;
  --orange:     #FF9E1B;
  --orange-deep:#C2410C;
  --gray-warm:  #8C877D;
  --gray-dark:  #55524C;

  --font-display:'Space Grotesk', -apple-system, sans-serif;
  --font-body:   'Manrope', -apple-system, sans-serif;
  --font-mono:   'IBM Plex Mono', ui-monospace, monospace;

  --container-w: 1200px;
  --gutter: clamp(20px, 5vw, 64px);

  --ease: cubic-bezier(.22,.68,0,1);
  --dur-fast: .2s;
  --dur-med: .6s;
  --dur-slow: 1.1s;

  color-scheme: dark;
}

/* ==========================================================================
   Reset
   ========================================================================== */
*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (hover: none) and (pointer: coarse){
  html{ scroll-behavior: auto; }
}
body{
  margin:0;
  background: var(--ink);
  color: var(--off-white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img,svg{ display:block; max-width:100%; }
a{ color: inherit; text-decoration: none; }
ul,ol{ list-style: none; margin:0; padding:0; }
h1,h2,h3,p{ margin:0; }
button{ font: inherit; color: inherit; background:none; border:0; cursor:pointer; }
:focus-visible{ outline: 2px solid var(--orange); outline-offset: 3px; }

.skip-link{
  position:absolute; left:12px; top:-60px;
  background:var(--orange); color:var(--ink); font-weight:600;
  padding:10px 16px; border-radius:8px; z-index:200;
  transition: top var(--dur-fast);
}
.skip-link:focus{ top:12px; }

.container{
  max-width: var(--container-w);
  margin-inline:auto;
  padding-inline: var(--gutter);
}

h1,h2,h3{ font-family: var(--font-display); letter-spacing:-.02em; }

.eyebrow{
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 14px;
}

.section-lede{
  max-width: 58ch;
  color: rgba(246,243,238,.72);
  font-size: 1.05rem;
}

h2{ font-size: clamp(1.8rem, 4vw, 2.75rem); line-height:1.15; margin-bottom: 18px; }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:8px; padding: 13px 26px; border-radius: 999px;
  font-family: var(--font-body); font-weight:700; font-size: .95rem;
  transition: transform var(--dur-fast) var(--ease), background var(--dur-fast), color var(--dur-fast), border-color var(--dur-fast);
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-2px); }
.btn-primary{ background: var(--orange); color: var(--ink); }
.btn-primary:hover{ background:#ffb347; }
.btn-outline{ border:1.5px solid rgba(246,243,238,.35); color: var(--off-white); }
.btn-outline:hover{ border-color: var(--orange); color: var(--orange); }
.btn-ghost{ color: var(--off-white); font-size:.9rem; padding: 10px 18px; }
.btn-ghost:hover{ color: var(--orange); }
.btn-lg{ padding: 16px 34px; font-size: 1.02rem; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header{
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  padding-block: 18px;
  transition: background var(--dur-fast) var(--ease), padding var(--dur-fast) var(--ease), border-color var(--dur-fast);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled,
.site-header.nav-open{
  background: rgba(22,22,26,.92);
  backdrop-filter: blur(10px);
  border-color: rgba(246,243,238,.08);
}
.site-header.is-scrolled{
  padding-block: 12px;
}
.header-row{ display:flex; align-items:center; gap: 28px; }

.logo-lockup{ display:flex; align-items:center; gap:10px; margin-right:auto; }
.logo-mark{ display:inline-flex; }
.logo-word{
  font-family: var(--font-display); font-weight:700; font-size: 1.25rem;
  color: var(--off-white); letter-spacing: -.01em;
}

.main-nav ul{ display:flex; gap: 32px; }
.main-nav a{
  font-size: .95rem; font-weight: 600; color: rgba(246,243,238,.78);
  transition: color var(--dur-fast);
  position:relative;
}
.main-nav a::after{
  content:""; position:absolute; left:0; right:0; bottom:-4px; height:2px;
  background: var(--orange); transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur-fast) var(--ease);
}
.main-nav a:hover{ color: var(--off-white); }
.main-nav a:hover::after{ transform: scaleX(1); }

.header-cta{ display:none; }
@media (min-width: 860px){ .header-cta{ display:inline-flex; } }

.nav-toggle{
  display:flex; flex-direction:column; justify-content:center; gap:5px;
  width:40px; height:40px; padding:0;
}
.nav-toggle span{ display:block; height:2px; width:22px; background:var(--off-white); border-radius:2px; transition: transform var(--dur-fast), opacity var(--dur-fast); }
.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); }
@media (min-width: 860px){ .nav-toggle{ display:none; } }
@media (max-width: 859px){ .main-nav{ display:none; } }

.mobile-nav{
  display:grid; grid-template-rows: 0fr; transition: grid-template-rows var(--dur-med) var(--ease);
  border-top: 1px solid transparent;
}
.mobile-nav-inner{ overflow:hidden; }
.mobile-nav ul{ display:flex; flex-direction:column; padding: 8px var(--gutter) 0; }
.mobile-nav ul a{ display:block; padding: 14px 0; font-size:1.1rem; font-weight:600; border-bottom:1px solid rgba(246,243,238,.08); }
.mobile-nav .btn{ display:inline-flex; margin: 18px var(--gutter) 24px; }
.site-header.nav-open .mobile-nav{ grid-template-rows: 1fr; border-color: rgba(246,243,238,.08); }
@media (min-width:860px){ .mobile-nav{ display:none; } }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position: relative;
  padding-block: clamp(140px, 22vw, 200px) clamp(80px,10vw,120px);
  overflow: hidden;
}
.hero-glow{
  position:absolute; inset: -20% -10% auto -10%; height: 70%;
  background: radial-gradient(60% 60% at 70% 20%, rgba(255,158,27,.16), transparent 70%);
  pointer-events:none;
}
.hero-inner{
  display:grid; gap: clamp(40px, 6vw, 60px);
  align-items:center;
  grid-template-columns: 1fr;
}
@media (min-width: 900px){
  .hero-inner{ grid-template-columns: 1.1fr .9fr; }
}
.hero h1{
  font-size: clamp(2.6rem, 6.4vw, 4.6rem);
  line-height: 1.02;
  font-weight: 700;
}
.hero-sub{
  margin-top: 22px; max-width: 46ch;
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: rgba(246,243,238,.72);
}
.hero-actions{ display:flex; flex-wrap:wrap; gap:16px; margin-top: 36px; }

.hero-visual{
  display:flex; align-items:center; justify-content:center;
  max-width: 340px; margin-inline:auto;
}
.hero-mark{ width:100%; height:auto; filter: drop-shadow(0 30px 60px rgba(255,158,27,.12)); }

.hero-3d{
  display:none;
  width:100%; aspect-ratio: 1 / 1;
  cursor: grab;
  touch-action: none;
}
.hero-3d.is-active{ display:block; }
.hero-3d.is-active + .hero-3d-hint{ display:block; }
.hero-3d:active{ cursor: grabbing; }
.hero-visual.is-3d .hero-mark{ display:none; }
@media (hover: hover) and (pointer: fine){
  .hero-visual:not(.is-3d):not(.is-2d) .hero-mark{ opacity:0; }
}

.hero-3d-hint{
  display:none;
  margin: 10px 0 0;
  text-align:center;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing:.08em;
  text-transform: uppercase;
  color: var(--gray-warm);
  opacity: .8;
  transition: opacity .6s var(--ease);
}
.hero-3d-hint.is-dismissed{ opacity:0; }

.scroll-cue{
  position:absolute; left:50%; bottom: 28px; transform: translateX(-50%);
  width: 22px; height: 36px; border: 1.5px solid rgba(246,243,238,.3); border-radius: 20px;
}
.scroll-cue span{
  display:block; width:4px; height:8px; margin: 6px auto 0; border-radius:2px;
  background: var(--orange);
  animation: cue-scroll 2.2s ease-in-out infinite;
}
@media (max-width: 640px){ .scroll-cue{ display:none; } }
@keyframes cue-scroll{
  0%{ transform: translateY(0); opacity:1; }
  60%{ transform: translateY(12px); opacity:0; }
  61%{ transform: translateY(0); opacity:0; }
  100%{ transform: translateY(0); opacity:1; }
}

/* ==========================================================================
   LED brand-pulse mark (segments)
   ========================================================================== */
/* A marca em repouso é idêntica ao PNG da identidade: faixa laranja contínua com
   ranhuras escuras. A animação de energia apenas clareia os trechos em sequência. */
.lp-leg{ fill: var(--off-white); }
.lp-seg{ fill: var(--orange); transition: fill .25s linear; }
.lp-seg.is-lit{ fill: #FFC46B; }
.lp-seg.is-glow{ filter: drop-shadow(0 0 6px rgba(255,158,27,.85)); }
.lp-grooves rect{ fill: var(--ink); }

@media (prefers-reduced-motion: reduce){
  .lp-seg{ transition: none; }
}

/* Textura de fundo do hero — mesmo padrão de scanlines da capa da identidade visual.
   Opacidade decresce de cima para baixo; uma varredura de luz percorre as linhas
   continuamente para dar a sensação de energia fluindo, não um "pisca-pisca". */
.hero-scanlines,
.hero-scan-sweep{
  position:absolute; inset:0;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,.95) 0%, rgba(0,0,0,.45) 36%, rgba(0,0,0,.12) 68%, transparent 100%);
          mask-image: linear-gradient(to bottom, rgba(0,0,0,.95) 0%, rgba(0,0,0,.45) 36%, rgba(0,0,0,.12) 68%, transparent 100%);
  pointer-events:none;
}
.hero-scanlines{
  opacity: .22;
  background: repeating-linear-gradient(180deg, var(--orange) 0 1px, transparent 1px 9px);
}
.hero-scan-sweep{
  overflow: hidden;
  mix-blend-mode: screen;
  opacity: .9;
}
.hero-scan-sweep::before{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(180deg, transparent, rgba(255,158,27,.7) 50%, transparent 100%);
  animation: scan-sweep 7s ease-in-out infinite;
}
@keyframes scan-sweep{
  0%{ transform: translateY(-100%); opacity: 0; }
  18%{ opacity: 1; }
  50%{ transform: translateY(0%); opacity: 1; }
  82%{ opacity: 1; }
  100%{ transform: translateY(100%); opacity: 0; }
}
@media (prefers-reduced-motion: reduce){
  .hero-scan-sweep::before{ animation:none; opacity:0; }
}
@media (hover: none) and (pointer: coarse){
  .hero-visual{ display:none; }
  .hero-scan-sweep{ display:none; }
  .hero-scanlines{ opacity:.1; }
  .hero-mark{ filter:none; }
  .lp-seg.is-glow{ filter:none; }
  .site-header.is-scrolled,
  .site-header.nav-open{
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

/* ==========================================================================
   Scroll reveal
   ========================================================================== */
[data-reveal]{
  opacity: 0; transform: translateY(18px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
  transition-delay: calc(var(--reveal-delay, 0) * 90ms);
}
[data-reveal].is-visible{ opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){
  [data-reveal]{ opacity:1; transform:none; transition:none; }
}

/* ==========================================================================
   Positioning / Solutions
   ========================================================================== */
.positioning{ padding-block: clamp(80px,10vw,140px) clamp(60px,8vw,100px); }
.solutions-grid{
  margin-top: 56px;
  display:grid; gap: 1px;
  background: rgba(246,243,238,.1);
  border: 1px solid rgba(246,243,238,.1);
  border-radius: 20px;
  overflow:hidden;
}
@media (min-width: 780px){ .solutions-grid{ grid-template-columns: repeat(3, 1fr); } }

.solution-card{
  background: var(--ink);
  padding: 36px 32px;
  transition: background var(--dur-fast);
}
.solution-card:hover{ background: var(--ink-soft); }
.solution-card .index{
  font-family: var(--font-mono); color: var(--orange); font-size: .85rem;
  margin-bottom: 18px; display:block;
}
.solution-card h3{ font-size: 1.3rem; margin-bottom: 12px; }
.solution-card p{ color: rgba(246,243,238,.65); font-size: .95rem; }

/* ==========================================================================
   Portfolio carousel
   ========================================================================== */
.portfolio{ padding-block: clamp(60px,8vw,100px); }
.portfolio-head{ margin-bottom: 44px; }
[data-placeholder-note]{
  font-family: var(--font-mono); font-size:.82rem; color: var(--gray-warm);
  border-left: 2px solid var(--orange-deep); padding-left: 12px; max-width:60ch;
}

.carousel{ position:relative; }
.carousel-track{
  display:flex; gap: 20px;
  overflow-x:auto; scroll-snap-type: x proximity;
  padding: 4px var(--gutter) 28px;
  scrollbar-width: thin; scrollbar-color: var(--orange-deep) transparent;
  cursor: grab;
  user-select: none;
}
.carousel-track:active{ cursor: grabbing; }
.carousel-track::-webkit-scrollbar{ height:6px; }
.carousel-track::-webkit-scrollbar-thumb{ background: rgba(255,158,27,.35); border-radius:6px; }

.project-card{
  flex: 0 0 clamp(220px, 62vw, 300px);
  scroll-snap-align: start;
  border-radius: 18px;
  overflow: hidden;
  background: var(--ink-soft);
  border: 1px solid rgba(246,243,238,.08);
  transition: transform var(--dur-med) var(--ease), opacity var(--dur-med) var(--ease), border-color var(--dur-fast);
}
.carousel-track:not(:hover) .project-card{ opacity: .85; }
.project-card:hover, .project-card:focus-within{ transform: translateY(-6px) scale(1.015); opacity:1; border-color: rgba(255,158,27,.3); }

.project-thumb{
  aspect-ratio: 4/3;
  display:flex; align-items:center; justify-content:center;
  background:
    repeating-linear-gradient(135deg, rgba(255,158,27,.08) 0 2px, transparent 2px 14px),
    linear-gradient(160deg, #1c1c21, #121215);
}
.project-thumb svg{ width: 34%; height:34%; opacity:.85; }

.project-body{ padding: 20px 22px 24px; }
.project-category{
  font-family: var(--font-mono); font-size:.72rem; letter-spacing:.06em;
  text-transform:uppercase; color: var(--orange); margin-bottom:8px;
}
.project-name{ font-family: var(--font-display); font-size:1.1rem; margin-bottom:6px; }
.project-desc{ font-size:.88rem; color: rgba(246,243,238,.6); }

.carousel-dots{ display:flex; gap:8px; justify-content:center; margin-top:6px; }
.carousel-dots .dot{ width:6px; height:6px; border-radius:50%; background: rgba(246,243,238,.2); transition: background var(--dur-fast), width var(--dur-fast); }
.carousel-dots .dot.is-active{ background: var(--orange); width: 20px; border-radius: 4px; }

/* ==========================================================================
   B2B
   ========================================================================== */
.b2b{ padding-block: clamp(70px,9vw,120px); background: var(--ink-soft); }
.b2b-inner{ display:grid; gap: 48px; }
@media (min-width: 900px){ .b2b-inner{ grid-template-columns: 1.1fr .8fr; align-items:center; } }
.b2b-copy .btn{ margin-top: 32px; }
.b2b-list{ display:grid; gap:14px; }
.b2b-list li{
  font-family: var(--font-mono); font-size:.92rem;
  padding: 16px 18px; border-radius:12px;
  background: rgba(246,243,238,.04);
  border: 1px solid rgba(246,243,238,.08);
}

/* ==========================================================================
   Process
   ========================================================================== */
.process{ padding-block: clamp(70px,9vw,120px); }
.process-list{
  margin-top: 48px;
  display:grid; gap: 1px; background: rgba(246,243,238,.1);
  border:1px solid rgba(246,243,238,.1); border-radius:20px; overflow:hidden;
}
@media (min-width: 780px){ .process-list{ grid-template-columns: repeat(4,1fr); } }
.process-step{ background: var(--ink); padding: 32px 26px; }
.process-step .num{ font-family: var(--font-mono); color: var(--orange-deep); font-size:.85rem; display:block; margin-bottom:16px; }
.process-step h3{ font-size:1.1rem; margin-bottom:8px; }
.process-step p{ font-size:.88rem; color: rgba(246,243,238,.62); }

/* ==========================================================================
   Stats / Partners (hideable via [hidden])
   ========================================================================== */
.stats,.partners{ padding-block: clamp(60px,8vw,100px); }
.stats-grid{ display:grid; gap: 32px; margin-top:40px; }
@media (min-width:640px){ .stats-grid{ grid-template-columns: repeat(4,1fr); } }
.stat-item{ text-align:center; }
.stat-num{ font-family: var(--font-display); font-size: clamp(2rem,4vw,2.8rem); color: var(--orange); }
.stat-label{ font-size:.85rem; color: rgba(246,243,238,.6); margin-top:6px; }
.partners-row{ display:flex; flex-wrap:wrap; gap: 40px; align-items:center; margin-top:36px; opacity:.7; }

/* ==========================================================================
   Final CTA
   ========================================================================== */
.final-cta{ padding-block: clamp(90px,12vw,150px); text-align:center; position:relative; }
.final-cta h2{ font-size: clamp(2.1rem,5vw,3.4rem); }
.final-cta-actions{ display:flex; flex-wrap:wrap; gap:18px; justify-content:center; margin-top:36px; }
.final-cta-contacts{
  margin-top: 34px; display:flex; flex-wrap:wrap; gap:10px; justify-content:center; align-items:baseline;
  font-family: var(--font-mono); font-size:.92rem; color: rgba(246,243,238,.75);
}
.final-cta-contacts a:hover{ color: var(--orange); }
.contact-sep{ color: var(--gray-warm); }
.contact-hint{ width:100%; font-size:.75rem; color: var(--gray-warm); margin-top:2px; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{ border-top: 1px solid rgba(246,243,238,.08); padding-block: 40px 24px; }
.footer-inner{ display:flex; flex-wrap:wrap; gap:24px; align-items:center; justify-content:space-between; }
.footer-links{ display:flex; gap:24px; flex-wrap:wrap; }
.footer-links a{ font-size:.9rem; color: rgba(246,243,238,.7); }
.footer-links a:hover{ color: var(--orange); }
.footer-email{ font-family: var(--font-mono); font-size:.85rem; color: rgba(246,243,238,.7); }
.footer-email:hover{ color: var(--orange); }
.footer-bottom{ margin-top: 28px; }
.footer-bottom p{ font-size:.78rem; color: var(--gray-warm); }