/* ============================================
   MGarvil Engenharia — design tokens
   ============================================ */
:root{
  --bg: #0A0B0D;
  --bg-elev: #131418;
  --bg-elev-2: #1B1D22;
  --line: #2B2E33;
  --line-soft: #1E2024;
  --ink: #ECEDEA;
  --ink-dim: #93989F;
  --ink-faint: #5A5F66;
  --blue: #6FA8DC;
  --blue-dim: #3E617D;
  --copper: #C98A55;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --container: 1180px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }

h1,h2,h3{
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}
h1{ font-size: clamp(2.1rem, 5vw, 3.6rem); line-height: 1.12; }
h2{ font-size: clamp(1.6rem, 3.2vw, 2.4rem); line-height: 1.2; }
h3{ font-size: 1.2rem; }
em{ font-style: normal; color: var(--blue); }

p{ margin: 0 0 1em; color: var(--ink-dim); font-weight: 300; }

::selection{ background: var(--blue-dim); color: var(--ink); }

:focus-visible{
  outline: 1.5px solid var(--blue);
  outline-offset: 3px;
}

/* ============================================
   Sheet frame — signature drafting-sheet motif
   ============================================ */
.sheet-frame{
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 5;
  border: 1px solid var(--line-soft);
  margin: 10px;
}
.ticks{
  position: absolute;
  display: flex;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--ink-faint);
  letter-spacing: 0.05em;
}
.ticks-top{
  top: -18px; left: 0; right: 0;
  justify-content: space-between;
  padding: 0 6px;
}
.ticks-side{
  top: 0; bottom: 0; left: -18px;
  flex-direction: column;
  justify-content: space-between;
  padding: 6px 0;
}
@media (max-width: 720px){
  .sheet-frame{ display: none; }
}

/* ============================================
   Nav
   ============================================ */
.nav{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10,11,13,0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.nav-inner{
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand{
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-mark{
  height: 30px;
  width: auto;
}
.brand-text{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.08em;
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.brand-sub{
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.55rem;
  letter-spacing: 0.22em;
  color: var(--ink-faint);
}
.nav-links{
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 0.9rem;
  color: var(--ink-dim);
}
.nav-links a{ transition: color 0.2s; white-space: nowrap; }
.nav-links a:hover{ color: var(--ink); }
.nav-cta{
  border: 1px solid var(--line);
  padding: 8px 16px;
  border-radius: 2px;
  color: var(--ink) !important;
}
.nav-cta:hover{ border-color: var(--blue); color: var(--blue) !important; }
.nav-toggle{
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span{
  width: 22px; height: 1.5px; background: var(--ink);
}

@media (max-width: 860px){
  .nav-links{
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .nav-links.open{ max-height: 400px; }
  .nav-links a{ padding: 16px 32px; width: 100%; border-bottom: 1px solid var(--line-soft); }
  .nav-cta{ border: none; }
  .nav-toggle{ display: flex; }
}

/* ============================================
   Buttons
   ============================================ */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 13px 24px;
  border-radius: 2px;
  border: 1px solid transparent;
  transition: all 0.2s ease;
  cursor: pointer;
}
.btn-primary{
  background: var(--ink);
  color: var(--bg) !important;
}
.btn-primary:hover{ background: var(--blue); }
.btn-ghost{
  border-color: var(--line);
  color: var(--ink) !important;
}
.btn-ghost:hover{ border-color: var(--blue); color: var(--blue) !important; }
.btn-sm{ padding: 10px 18px; font-size: 0.82rem; }

/* ============================================
   Layout helpers
   ============================================ */
.section{ padding: 120px 32px; }
.section-alt{ background: var(--bg-elev); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.section-inner{ max-width: var(--container); margin: 0 auto; }
.narrow{ max-width: 760px; }
.center{ text-align: center; margin-left: auto; margin-right: auto; }

.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 14px;
}
.lede{ font-size: 1.15rem; color: var(--ink-dim); max-width: 640px; }
.lede-grid{ display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 32px; }
.lede-grid .lede{ max-width: none; }

@media (max-width: 780px){
  .section{ padding: 80px 20px; }
  .lede-grid{ grid-template-columns: 1fr; gap: 20px; }
}

/* ============================================
   Reveal on scroll
   ============================================ */
[data-reveal]{
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-reveal].is-visible{
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   Hero
   ============================================ */
.hero{
  position: relative;
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 140px 32px 60px;
  overflow: hidden;
}
#blueprintCanvas{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.5;
}
.hero-row{
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.hero-inner{
  flex: 1 1 420px;
  max-width: 560px;
  min-width: 0;
}
.hero h1{ max-width: 560px; }
.hero-sub{
  font-size: 1.1rem;
  max-width: 560px;
  margin-top: 22px;
}
.hero-actions{
  display: flex;
  gap: 16px;
  margin-top: 36px;
  flex-wrap: wrap;
}
.hero-stats{
  position: relative;
  z-index: 2;
  display: flex;
  gap: 60px;
  margin-top: 90px;
  flex-wrap: wrap;
}
.stat{ display: flex; flex-direction: column; }
.stat-num{
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--ink);
  display: inline-block;
}
.stat-plus{
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--blue);
}
.stat-label{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  margin-top: 6px;
  max-width: 160px;
}

@media (max-width: 780px){
  .hero{ min-height: auto; padding: 110px 20px 50px; }
  .hero-stats{ gap: 34px; margin-top: 56px; }
}

/* ============================================
   Hero visual — BIM render
   ============================================ */
.hero-visual{
  flex: 1.6 1 700px;
  max-width: 1200px;
  min-width: 0;
  pointer-events: none;
}
.hero-visual img{
  width: 100%;
  height: auto;
  display: block;
}

@media (max-width: 1000px){
  .hero-visual{ display: none; }
}

/* ============================================
   Services
   ============================================ */
.services-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line-soft);
  margin-top: 48px;
  border: 1px solid var(--line-soft);
}
.service-card{
  background: var(--bg-elev);
  padding: 36px 28px;
  transition: background 0.25s ease;
}
.service-card:hover{ background: var(--bg-elev-2); }
.service-icon{
  width: 34px; height: 34px;
  color: var(--blue);
  margin-bottom: 22px;
}
.service-card h3{ margin-bottom: 10px; }
.service-card p{ font-size: 0.92rem; margin: 0; }

@media (max-width: 900px){
  .services-grid{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px){
  .services-grid{ grid-template-columns: 1fr; }
}

/* ============================================
   BIM section
   ============================================ */
.bim-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
}
.bim-list{
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.bim-list li{
  padding-left: 22px;
  position: relative;
  font-size: 0.95rem;
  color: var(--ink-dim);
  border-top: 1px solid var(--line-soft);
  padding-top: 14px;
}
.bim-list li:before{
  content: "";
  position: absolute;
  left: 0; top: 22px;
  width: 10px; height: 1px;
  background: var(--blue);
}
.bim-list li span{ color: var(--ink); font-weight: 500; }

.bim-stack{
  position: relative;
  height: 380px;
}
.bim-layer{
  position: absolute;
  width: 82%;
  border: 1px solid var(--line);
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.7);
  border-radius: 2px;
}
.bim-layer-1{ top: 0; left: 0; opacity: 0.5; transform: rotate(-4deg); }
.bim-layer-2{ top: 40px; left: 14%; opacity: 0.7; transform: rotate(2deg); }
.bim-layer-3{ top: 80px; left: 6%; opacity: 1; transform: rotate(-1deg); }

@media (max-width: 900px){
  .bim-grid{ grid-template-columns: 1fr; gap: 40px; }
  .bim-stack{ height: 280px; order: -1; }
}

/* ============================================
   Gallery / Portfolio
   ============================================ */
.gallery{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 48px;
}
.gallery-item{
  position: relative;
  border: none;
  padding: 0;
  cursor: zoom-in;
  overflow: hidden;
  background: var(--bg);
  aspect-ratio: 4/3;
}
.gallery-item img{
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(0.15) contrast(1.05);
  transition: transform 0.5s ease, filter 0.4s ease;
}
.gallery-item:hover img{
  transform: scale(1.05);
  filter: grayscale(0) contrast(1.1);
}
.gallery-tag{
  position: absolute;
  bottom: 12px; left: 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: rgba(10,11,13,0.75);
  padding: 5px 10px;
  border: 1px solid var(--line);
  text-transform: uppercase;
}

@media (max-width: 780px){
  .gallery{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px){
  .gallery{ grid-template-columns: 1fr; }
}

.bim-viewer-cta{
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.bim-viewer-cta p{ margin: 0; max-width: 420px; color: var(--ink-dim); }
.viewer-links{ display: flex; flex-wrap: wrap; gap: 12px; }

/* ============================================
   Lightbox
   ============================================ */
.lightbox{
  position: fixed;
  inset: 0;
  background: rgba(6,7,8,0.95);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}
.lightbox.open{ display: flex; }
.lightbox figure{ margin: 0; max-width: 1100px; }
.lightbox img{ max-height: 82vh; width: auto; margin: 0 auto; border: 1px solid var(--line); }
.lightbox figcaption{
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-dim);
  margin-top: 14px;
  letter-spacing: 0.05em;
}
.lightbox-close{
  position: absolute;
  top: 26px; right: 32px;
  background: none;
  border: 1px solid var(--line);
  color: var(--ink);
  width: 40px; height: 40px;
  cursor: pointer;
  font-size: 1rem;
  transition: border-color 0.2s;
}
.lightbox-close:hover{ border-color: var(--blue); }

/* ============================================
   Profile
   ============================================ */
.profile-grid{
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 64px;
  margin-top: 48px;
  align-items: start;
}
.profile-photo img{
  width: 100%;
  max-width: 320px;
  border-radius: 50%;
  border: 1px solid var(--line);
  padding: 6px;
}
.profile-text p{ font-size: 1rem; }
.profile-meta{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--line-soft);
}
.meta-label{
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 12px;
}
.chips{ display: flex; flex-wrap: wrap; gap: 8px; }
.chip{
  font-size: 0.78rem;
  border: 1px solid var(--line);
  padding: 5px 10px;
  color: var(--ink-dim);
  white-space: nowrap;
}

@media (max-width: 780px){
  .profile-grid{ grid-template-columns: 1fr; gap: 32px; }
  .profile-photo img{ max-width: 260px; }
  .profile-meta{ grid-template-columns: 1fr; }
}

/* ============================================
   Partners callout
   ============================================ */
.partners .lede{ margin-left: auto; margin-right: auto; }
.partners .btn{ margin-top: 8px; }

/* ============================================
   Footer
   ============================================ */
.site-footer{
  border-top: 1px solid var(--line-soft);
  background: var(--bg-elev);
  padding: 72px 32px 0;
}
.footer-top{
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 56px;
}
.footer-brand{ max-width: 300px; }
.footer-logo{ height: 56px; width: auto; }
.footer-brand p{ margin-top: 16px; font-size: 0.88rem; }

.footer-col{ display: flex; flex-direction: column; gap: 12px; }
.footer-heading{
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 4px;
}
.footer-col a{
  font-size: 0.92rem;
  color: var(--ink-dim);
  transition: color 0.2s;
  width: fit-content;
}
.footer-col a:hover{ color: var(--blue); }
.footer-address{
  font-size: 0.92rem;
  color: var(--ink-dim);
  margin: 0;
  line-height: 1.7;
}

.footer-bottom{
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 22px 0;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
}

@media (max-width: 900px){
  .footer-top{ grid-template-columns: 1fr 1fr; }
  .footer-brand{ grid-column: 1 / -1; max-width: none; }
}
@media (max-width: 560px){
  .footer-top{ grid-template-columns: 1fr; }
  .footer-bottom{ flex-direction: column; }
}