/* ==========================================================================
   OnlyTecnologia — Landing Page
   Tokens: black #0A0A0A · green #1FD65F / #0E9A46 · white / off-white
   Type: Space Grotesk (display) · Inter (body) · JetBrains Mono (utility)
   ========================================================================== */

:root{
  --black: #0A0A0A;
  --black-soft: #121412;
  --ink: #1B1F1C;
  --white: #FFFFFF;
  --off-white: #F6F8F6;
  --paper: #F1F3F1;
  --green: #1FD65F;
  --green-dark: #0E9A46;
  --green-deep: #0A6E33;
  --green-tint: #E6FBEE;
  --gray-600: #63706A;
  --gray-400: #96A19C;
  --gray-200: #DFE5E1;
  --line: rgba(10,10,10,0.09);
  --line-on-dark: rgba(255,255,255,0.14);

  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --radius-lg: 22px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --radius-pill: 999px;

  --container: 1180px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

body{
  margin:0;
  font-family: var(--font-body);
  color: var(--black);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0;
}

p{ margin:0; }
a{ color: inherit; text-decoration: none; }
img,svg{ display:block; max-width: 100%; }
button{ font-family: inherit; cursor: pointer; }
ul{ margin:0; padding:0; list-style:none; }

.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green-dark);
  font-weight: 500;
}
.eyebrow::before{
  content:'';
  width:6px; height:6px;
  border-radius:50%;
  background: var(--green);
  box-shadow: 0 0 0 3px var(--green-tint);
}
.on-dark .eyebrow{ color: var(--green); }
.on-dark .eyebrow::before{ box-shadow: 0 0 0 3px rgba(31,214,95,0.18); }

.section-head{
  max-width: 640px;
  margin-bottom: 56px;
}
.section-head h2{
  font-size: clamp(28px, 3.6vw, 42px);
  margin-top: 14px;
}
.section-head p{
  margin-top: 16px;
  font-size: 17px;
  color: var(--gray-600);
}
.on-dark .section-head p{ color: rgba(255,255,255,0.62); }

section{ padding: 112px 0; }
@media (max-width: 768px){ section{ padding: 76px 0; } }

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline: 2px solid var(--green-dark);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  padding: 14px 26px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  transition: transform .35s var(--ease), background .25s ease, border-color .25s ease, color .25s ease;
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-2px); }
.btn-primary{ background: var(--green); color: var(--black); }
.btn-primary:hover{ background: var(--green-dark); }
.btn-dark{ background: var(--black); color: var(--white); }
.btn-dark:hover{ background: #000; }
.btn-ghost{ background: transparent; color: var(--white); border-color: var(--line-on-dark); }
.btn-ghost:hover{ border-color: var(--green); color: var(--green); }
.btn-outline{ background: transparent; color: var(--black); border-color: var(--line); }
.btn-outline:hover{ border-color: var(--black); }
.btn svg{ width: 18px; height: 18px; }

/* ==========================================================================
   Header
   ========================================================================== */
.site-header{
  position: fixed;
  top: 0; left:0; right:0;
  z-index: 200;
  padding: 18px 0;
  transition: background .35s ease, padding .35s ease, box-shadow .35s ease;
  background: rgba(255,255,255,0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header.scrolled{
  background: rgba(255,255,255,0.97);
  padding: 12px 0;
  box-shadow: 0 12px 30px -24px rgba(10,10,10,0.35);
}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
}
.brand-logo{ height: 64px; width:auto; }

.nav-links{
  display:flex;
  align-items:center;
  gap:36px;
}
.nav-links a{
  font-size: 14.5px;
  font-weight: 500;
  color: var(--gray-600);
  transition: color .2s ease;
  position:relative;
}
.nav-links a:hover{ color: var(--black); }
.nav-links a::after{
  content:'';
  position:absolute; left:0; right:0; bottom:-6px;
  height:1px; background: var(--green);
  transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease);
}
.nav-links a:hover::after{ transform: scaleX(1); }

.header-actions{ display:flex; align-items:center; gap:14px; }

.menu-toggle{
  display:none;
  width: 42px; height:42px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: transparent;
  position: relative;
}
.menu-toggle span, .menu-toggle span::before, .menu-toggle span::after{
  content:'';
  position:absolute; left:11px; right:11px;
  height:1.5px; background: var(--black);
  transition: transform .3s ease, opacity .2s ease, top .3s ease;
}
.menu-toggle span{ top:20px; }
.menu-toggle span::before{ top:-7px; }
.menu-toggle span::after{ top:7px; }
.menu-toggle.open span{ background: transparent; }
.menu-toggle.open span::before{ transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span::after{ transform: translateY(-7px) rotate(-45deg); }

.mobile-nav{
  position: fixed; inset:0;
  background: var(--black);
  z-index: 190;
  display:flex; flex-direction:column;
  padding: 96px 32px 40px;
  overflow-y: auto;
  transform: translateY(-8px);
  opacity:0;
  visibility: hidden;
  transition: opacity .3s ease, transform .3s ease, visibility .3s;
}
.mobile-nav.open{ opacity:1; transform:translateY(0); visibility: visible; }
.mobile-nav a{
  font-family: var(--font-display);
  font-size: 28px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-on-dark);
  color: var(--white);
}
.mobile-nav .btn{ margin-top: 28px; align-self: flex-start; }

@media (max-width: 480px){
  .mobile-nav{ padding: 84px 22px 32px; }
  .mobile-nav a{ font-size: 23px; padding: 12px 0; }
  .mobile-nav .btn{ align-self: stretch; justify-content:center; }
}

@media (max-width: 900px){
  .nav-links{ display:none; }
  .menu-toggle{ display:block; }
  .header-actions{ gap:10px; }
  .header-actions .btn-primary{ display:none; }
  .site-header{ padding: 14px 0; }
  .site-header.scrolled{ padding: 10px 0; }
  .brand-logo{ height: 46px; }
}

@media (max-width: 480px){
  .container{ padding: 0 20px; }
  .brand-logo{ height: 38px; }
  .menu-toggle{ width: 38px; height:38px; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  background: var(--white);
  color: var(--black);
  position: relative;
  padding: 168px 0 120px;
  overflow: hidden;
}
.hero::before{
  content:'';
  position:absolute; inset:0;
  background: radial-gradient(600px 380px at 82% 8%, rgba(31,214,95,0.10), transparent 65%);
  pointer-events:none;
}
.hero-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.5), transparent 78%);
  opacity: .6;
}
.hero .container{ position:relative; display:grid; grid-template-columns: 1.05fr 0.95fr; gap: 40px; align-items:center; }
.hero-copy .eyebrow{ margin-bottom: 22px; }
.hero h1{
  font-size: clamp(38px, 5.2vw, 66px);
}
.hero h1 em{
  font-style: normal;
  color: var(--green-dark);
  position:relative;
}
.hero-sub{
  margin-top: 24px;
  font-size: 18px;
  color: var(--gray-600);
  max-width: 480px;
}
.hero-cta{ display:flex; gap:14px; margin-top: 38px; flex-wrap:wrap; }
.hero-meta{
  display:flex; gap:28px; margin-top: 52px;
  font-family: var(--font-mono); font-size: 12.5px;
  color: var(--gray-400);
}
.hero-meta strong{ color:var(--black); display:block; font-family:var(--font-display); font-size:22px; font-weight:600;}

/* Hero photo carousel */
.hero-carousel{
  position: relative;
  justify-self: end;
  width: 100%;
  max-width: 480px;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 30px 60px -32px rgba(10,10,10,0.28);
}
.hero-carousel-track{ position:relative; width:100%; height:100%; }
.hero-slide{
  margin:0;
  position:absolute; inset:0;
  opacity:0;
  transition: opacity .9s var(--ease);
}
.hero-slide.is-active{ opacity:1; }
.hero-slide img{ width:100%; height:100%; object-fit:cover; }
.hero-carousel-dots{
  position:absolute; left:0; right:0; bottom:16px;
  display:flex; justify-content:center; gap:8px;
}
.hero-carousel-dots button{
  width:8px; height:8px; border-radius:50%;
  border: 1.5px solid rgba(255,255,255,0.85);
  background: rgba(255,255,255,0.35);
  padding:0;
  transition: background .25s ease, width .25s ease;
}
.hero-carousel-dots button.is-active{ background: var(--white); width:22px; border-radius: 4px; }
@media (prefers-reduced-motion: reduce){ .hero-slide{ transition:none; } }

@media (max-width: 900px){
  .hero{ padding-top: 130px; }
  .hero .container{ grid-template-columns: 1fr; }
  .hero-carousel{ justify-self: center; max-width: 420px; margin-top: 24px; }
  .hero-meta{ gap:22px; flex-wrap:wrap; }
}

/* ==========================================================================
   Reveal on scroll
   ========================================================================== */
.reveal{ opacity:0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in{ opacity:1; transform:none; }
.reveal-stagger > *{ transition-delay: calc(var(--i, 0) * 70ms); }

/* ==========================================================================
   Services
   ========================================================================== */
.services{ background: var(--off-white); }
.service-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.service-card{
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s ease;
}
.service-card:hover{
  transform: translateY(-6px);
  box-shadow: 0 24px 48px -28px rgba(10,10,10,0.28);
  border-color: rgba(31,214,95,0.35);
}
.service-icon{
  width: 46px; height:46px;
  border-radius: 12px;
  background: var(--black);
  display:flex; align-items:center; justify-content:center;
  margin-bottom: 22px;
}
.service-icon svg{ width:22px; height:22px; stroke: var(--white); fill:none; }
.service-card h3{ font-size: 19px; color: var(--green-dark); margin-bottom:10px; }
.service-card p{ font-size: 14.8px; color: var(--gray-600); }

@media (max-width: 900px){ .service-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 620px){ .service-grid{ grid-template-columns: 1fr; } }

/* ==========================================================================
   Como funciona / Projetos (process)
   ========================================================================== */
.processo{ background: var(--paper); }
.process-track{
  position: relative;
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.process-track::before{
  content:'';
  position:absolute;
  top: 26px; left: 6%; right:6%;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--gray-200) 0 8px, transparent 8px 16px);
}
.process-step{ position:relative; background: var(--white); border:1px solid var(--line); border-radius: var(--radius-md); padding: 26px 22px; }
.process-index{
  width: 40px; height:40px; border-radius:50%;
  background: var(--black); color: var(--white);
  display:flex; align-items:center; justify-content:center;
  font-family: var(--font-mono); font-size: 13px; font-weight:600;
  margin-bottom: 20px;
}
.process-step h4{ font-size: 16.5px; color: var(--green-dark); margin-bottom: 8px; }
.process-step p{ font-size: 14px; color: var(--gray-600); }

@media (max-width: 900px){
  .process-track{ grid-template-columns: repeat(2,1fr); }
  .process-track::before{ display:none; }
}
@media (max-width: 560px){ .process-track{ grid-template-columns: 1fr; } }

/* ==========================================================================
   Contato
   ========================================================================== */
.contato{ background: var(--off-white); color: var(--black); }
.contato-simple{ max-width: 560px; margin: 0 auto; text-align:center; display:flex; flex-direction:column; align-items:center; }
.btn-lg{ padding: 17px 34px; font-size: 16px; }
.contato-channels{
  display:flex; flex-direction:column; gap:16px;
  margin-top: 48px;
  width:100%;
  text-align:left;
}
.channel{
  display:flex; gap:16px; align-items:center;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 16px 18px;
}
.channel-icon{
  width: 42px; height:42px; border-radius:11px;
  background: var(--off-white);
  border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center; flex:none;
}
.channel-icon svg{ width:19px; height:19px; stroke:var(--green-dark); fill:none; }
.channel strong{ display:block; font-size:15px; }
.channel span, .channel a{ font-size: 14px; color: var(--gray-600); }
.channel a:hover{ color: var(--green-dark); }

@media (max-width: 560px){
  .btn-lg{ width:100%; }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer{ background: var(--white); color: var(--gray-600); padding: 64px 0 28px; border-top: 1px solid var(--line); }
.footer-top{ display:grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 44px; }
.footer-brand .brand{ margin-bottom: 16px; }
.footer-brand p{ font-size: 14px; max-width: 320px; color: var(--gray-600); }
.footer-social{ display:flex; gap:10px; margin-top:22px; }
.footer-social a{
  width:36px; height:36px; border-radius:50%;
  border:1px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  color: var(--gray-600);
  transition: border-color .2s ease, color .2s ease;
}
.footer-social a:hover{ border-color: var(--green-dark); color: var(--green-dark); }
.footer-social svg{ width:16px; height:16px; }
.footer-col h5{ font-family: var(--font-mono); font-size:12px; letter-spacing:.1em; text-transform:uppercase; color: var(--gray-400); margin-bottom:18px; }
.footer-col ul{ display:flex; flex-direction:column; gap:12px; }
.footer-col a{ font-size:14.5px; color: var(--gray-600); }
.footer-col a:hover{ color: var(--green-dark); }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center;
  padding-top: 24px; border-top: 1px solid var(--line);
  font-size: 12.5px; color: var(--gray-400); flex-wrap:wrap; gap:10px;
}

@media (max-width: 760px){ .footer-top{ grid-template-columns: 1fr 1fr; } .footer-brand{ grid-column: 1 / -1; } }

/* ==========================================================================
   WhatsApp float button
   ========================================================================== */
.wa-float{
  position: fixed;
  right: 24px; bottom: 24px;
  width: 58px; height:58px;
  border-radius: 50%;
  display:flex; align-items:center; justify-content:center;
  box-shadow: 0 14px 30px -8px rgba(31,214,95,0.55);
  z-index: 150;
  animation: pulse-ring 2.6s ease-out infinite;
  transition: transform .3s var(--ease);
}
.wa-float:hover{ transform: translateY(-3px); }
.wa-float img{ width:100%; height:100%; border-radius:50%; display:block; }
@keyframes pulse-ring{
  0%{ box-shadow: 0 0 0 0 rgba(31,214,95,0.45), 0 14px 30px -8px rgba(31,214,95,0.55); }
  70%{ box-shadow: 0 0 0 14px rgba(31,214,95,0), 0 14px 30px -8px rgba(31,214,95,0.55); }
  100%{ box-shadow: 0 0 0 0 rgba(31,214,95,0), 0 14px 30px -8px rgba(31,214,95,0.55); }
}
@media (prefers-reduced-motion: reduce){ .wa-float{ animation:none; } }