/* ============================================================
   E3R 3D Printing — Website
   Paleta da marca: ciano #5fd5ff · fundo #0d1117 · verde #22c55e
   Acentos do logo: magenta #ff3d9a · laranja #ff8a3d
   ============================================================ */

:root {
  --bg:        #000000;
  --bg-2:      #060709;
  --bg-3:      #0c0e12;
  --surface:   #0b0d11;
  --border:    #1a1d24;
  --border-2:  #2a2f3a;
  --text:      #eef2f6;
  --text-dim:  #9aa4b2;
  --text-mute: #6b7280;

  --cyan:   #5fd5ff;
  --cyan-d: #38b6e6;
  --green:  #22c55e;
  --magenta:#ff3d9a;
  --orange: #ff8a3d;

  --grad: linear-gradient(100deg, var(--cyan) 0%, var(--magenta) 55%, var(--orange) 100%);

  --radius:   16px;
  --radius-sm:12px;
  --maxw: 1140px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: 'Space Grotesk', sans-serif; line-height: 1.1; letter-spacing: -.02em; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.eyebrow {
  display: inline-block;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 14px;
}

.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: .95rem;
  padding: 13px 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease);
  white-space: nowrap;
}
.btn-sm { padding: 9px 18px; font-size: .88rem; }
.btn-primary {
  color: #04121a;
  background: var(--cyan);
  box-shadow: 0 8px 30px -8px rgba(95,213,255,.55);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px -8px rgba(95,213,255,.7); }
.btn-ghost {
  color: var(--text);
  border-color: var(--border-2, #2a3648);
  background: rgba(255,255,255,.02);
}
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); transform: translateY(-2px); }

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background .3s var(--ease), border-color .3s var(--ease), backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(13,17,23,.82);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}
.header-inner { display: flex; align-items: center; gap: 24px; height: 74px; }
.brand-logo { height: 46px; width: auto; }
.nav { display: flex; gap: 30px; margin-left: auto; }
.nav a {
  font-size: .95rem;
  font-weight: 500;
  color: var(--text-dim);
  transition: color .2s;
  position: relative;
}
.nav a:hover { color: var(--text); }
.nav a::after {
  content: ''; position: absolute; left: 0; bottom: -6px;
  width: 0; height: 2px; background: var(--grad);
  transition: width .25s var(--ease);
}
.nav a:hover::after { width: 100%; }
.nav-cta { flex-shrink: 0; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none; border: none; cursor: pointer;
  margin-left: auto; padding: 8px;
}
.nav-toggle span {
  width: 24px; height: 2px; background: var(--text);
  border-radius: 2px; transition: transform .3s var(--ease), opacity .3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 12px 24px 22px;
  background: rgba(13,17,23,.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-mobile a { padding: 12px 4px; color: var(--text-dim); font-weight: 500; border-bottom: 1px solid var(--border); }
.nav-mobile a:last-child { border: none; margin-top: 12px; color: #04121a; justify-content: center; }
.nav-mobile.open { display: flex; }

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 150px 0 110px;
  overflow: hidden;
  isolation: isolate;
}
.hero-glow {
  position: absolute; z-index: -2;
  top: 4%; left: 50%; transform: translateX(-50%);
  width: 760px; height: 620px; max-width: 120vw;
  background: radial-gradient(ellipse at center, rgba(95,213,255,.16) 0%, rgba(255,61,154,.09) 42%, transparent 70%);
  filter: blur(28px);
  pointer-events: none;
}
.hero-inner { text-align: center; max-width: 820px; margin: 0 auto; }
.hero-logo {
  width: min(500px, 84%);
  margin: 0 auto 6px;
  /* funde as bordas da imagem (fundo preto) no fundo preto da página */
  mask-image: radial-gradient(ellipse 72% 72% at 50% 50%, #000 55%, transparent 88%);
  -webkit-mask-image: radial-gradient(ellipse 72% 72% at 50% 50%, #000 55%, transparent 88%);
}
.hero-title {
  font-size: clamp(2.2rem, 5.4vw, 3.9rem);
  font-weight: 700;
  margin-bottom: 22px;
}
.hero-sub {
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  color: var(--text-dim);
  max-width: 620px;
  margin: 0 auto 38px;
}
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-stats {
  display: flex; justify-content: center; gap: 48px;
  margin-top: 64px; flex-wrap: wrap;
}
.stat { text-align: center; }
.stat strong {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.9rem;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.stat span { font-size: .85rem; color: var(--text-mute); }

/* ===== Sections ===== */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 60px; }
.section-head h2 { font-size: clamp(2rem, 4.5vw, 2.9rem); margin-bottom: 14px; }
.section-lead { color: var(--text-dim); font-size: 1.1rem; }

/* ===== Cards ===== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--grad); transform: scaleX(0); transform-origin: left;
  transition: transform .35s var(--ease);
}
.card:hover { transform: translateY(-6px); border-color: var(--border-2, #2a3648); box-shadow: 0 20px 50px -20px rgba(0,0,0,.6); }
.card:hover::before { transform: scaleX(1); }
.card-icon {
  width: 54px; height: 54px;
  display: grid; place-items: center;
  font-size: 1.6rem;
  border-radius: 14px;
  background: rgba(95,213,255,.08);
  border: 1px solid rgba(95,213,255,.18);
  margin-bottom: 20px;
}
.card h3 { font-size: 1.25rem; margin-bottom: 10px; }
.card p { color: var(--text-dim); font-size: .97rem; }

/* ===== Sobre ===== */
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: center;
}
.about-media { display: flex; justify-content: center; }
.about-logo-wrap {
  position: relative;
  width: 100%; max-width: 400px; aspect-ratio: 1;
  display: grid; place-items: center;
}
.about-halo {
  position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(circle at 50% 50%, rgba(95,213,255,.18), rgba(255,61,154,.10) 42%, transparent 68%);
  filter: blur(26px);
}
.about-logo {
  width: 100%; position: relative; z-index: 1;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, #000 52%, transparent 86%);
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, #000 52%, transparent 86%);
}
.about-text h2 { font-size: clamp(1.9rem, 4vw, 2.7rem); margin-bottom: 20px; }
.about-text p { color: var(--text-dim); margin-bottom: 16px; }
.about-text strong { color: var(--text); }
.feature-list { list-style: none; margin-top: 24px; }
.feature-list li {
  position: relative; padding-left: 30px; margin-bottom: 12px; color: var(--text-dim);
}
.feature-list li::before {
  content: ''; position: absolute; left: 0; top: 9px;
  width: 16px; height: 16px; border-radius: 50%;
  background: rgba(34,197,94,.15);
  border: 1px solid var(--green);
  box-shadow: inset 0 0 0 3px var(--bg-2);
}

/* ===== Steps ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 22px;
}
.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: border-color .3s, transform .3s var(--ease);
}
.step:hover { border-color: rgba(95,213,255,.4); transform: translateY(-4px); }
.step-num {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.4rem; font-weight: 700;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block; margin-bottom: 14px;
}
.step h3 { font-size: 1.2rem; margin-bottom: 8px; }
.step p { color: var(--text-dim); font-size: .95rem; }

/* ===== Contato ===== */
.contact { padding-top: 40px; }
.contact-box {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 50px;
  align-items: center;
  background:
    radial-gradient(circle at 100% 0%, rgba(255,61,154,.10), transparent 55%),
    radial-gradient(circle at 0% 100%, rgba(95,213,255,.10), transparent 55%),
    var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 56px;
}
.contact-copy h2 { font-size: clamp(1.7rem, 3.6vw, 2.5rem); margin-bottom: 14px; }
.contact-copy p { color: var(--text-dim); margin-bottom: 28px; }
.contact-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.contact-list { list-style: none; display: grid; gap: 20px; }
.contact-list li { display: flex; flex-direction: column; gap: 2px; }
.contact-label { font-size: .75rem; text-transform: uppercase; letter-spacing: .12em; color: var(--text-mute); }
.contact-list a { color: var(--cyan); font-weight: 500; transition: color .2s; }
.contact-list a:hover { color: #fff; }

/* ===== Footer ===== */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-2); padding: 54px 0 28px; }
.footer-inner {
  display: flex; justify-content: space-between; align-items: center;
  gap: 30px; flex-wrap: wrap; padding-bottom: 34px;
  border-bottom: 1px solid var(--border);
}
.footer-logo { height: 50px; margin-bottom: 12px; }
.footer-brand p { color: var(--text-mute); font-size: .9rem; }
.footer-nav { display: flex; gap: 26px; flex-wrap: wrap; }
.footer-nav a { color: var(--text-dim); font-size: .95rem; transition: color .2s; }
.footer-nav a:hover { color: var(--cyan); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  gap: 14px; flex-wrap: wrap; padding-top: 24px;
  color: var(--text-mute); font-size: .85rem;
}

/* ===== Reveal animation ===== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ===== Responsive ===== */
@media (max-width: 720px) {
  .nav, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .about-inner { grid-template-columns: 1fr; gap: 40px; }
  .about-media { order: -1; }
  .contact-box { grid-template-columns: 1fr; padding: 40px 30px; gap: 34px; }
  .section { padding: 76px 0; }
  .hero { padding: 140px 0 80px; }
  .hero-stats { gap: 34px; margin-top: 48px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
  .hero-stats { gap: 22px; }
  .stat strong { font-size: 1.5rem; }
  .contact-box { padding: 32px 22px; }
}