:root {
  --dark: #111111;
  --ivory: #F5F1EA;
  --gold: #B08D57;
  --text: #1A1A1A;
  --text-muted: #6B6B6B;
  --white: #FFFFFF;
  --border: #E4DFD4;
  --font-serif: Georgia, 'Times New Roman', serif;
  --font-sans: 'Helvetica Neue', Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--white);
  scroll-behavior: smooth;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; margin: 0; padding: 0; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  border: none;
  transition: opacity 0.2s ease;
}
.btn:hover { opacity: 0.85; }
.btn-dark { background: var(--dark); color: var(--white); }
.btn-gold { background: var(--gold); color: var(--white); }

/* Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--dark);
  color: var(--white);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  max-width: 1200px;
  margin: 0 auto;
}
.brand-logo { color: var(--ivory); height: 32px; width: auto; }
.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav-links a {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ivory);
  opacity: 0.85;
}
.nav-links a:hover, .nav-links a.active { opacity: 1; border-bottom: 1px solid var(--gold); }
.lang-switch {
  display: flex;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.lang-switch a { color: var(--ivory); opacity: 0.6; }
.lang-switch a.active { opacity: 1; color: var(--gold); }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--ivory);
  font-size: 22px;
  cursor: pointer;
}
.nav-links-mobile {
  display: none;
  flex-direction: column;
  padding: 0 32px 20px;
}
.nav-links-mobile.open { display: flex; }
.nav-links-mobile a {
  color: var(--ivory);
  padding: 12px 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Hero */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: flex-end;
  background-size: cover;
  background-position: center;
  color: var(--white);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0.6) 100%);
}
.hero-content {
  position: relative;
  padding: 64px 32px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}
.hero h1 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 40px;
  line-height: 1.25;
  max-width: 720px;
  margin: 0 0 28px;
}
.hero h1 strong { font-weight: 700; color: var(--gold); }

/* Section headers */
.section { padding: 80px 0; }
.section-title {
  text-align: center;
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 30px;
  margin: 0 0 48px;
}
.section-title strong { font-weight: 700; }
.eyebrow {
  display: block;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 12px;
  color: var(--gold);
  margin-bottom: 12px;
}

/* Portfolio grid */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}
.portfolio-card {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--dark);
}
.portfolio-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.portfolio-card:hover img { transform: scale(1.06); }
.portfolio-label {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 18px 20px;
  background: linear-gradient(0deg, rgba(0,0,0,0.75), transparent);
  color: var(--white);
  font-size: 13px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* CTA banner */
.cta-banner {
  background: var(--dark);
  color: var(--white);
  text-align: center;
  padding: 40px 32px;
}
.cta-banner p {
  font-family: var(--font-serif);
  font-size: 22px;
  margin: 0 0 20px;
}

/* About split */
.about-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.about-split img { border-radius: 4px; }
.about-split h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 28px;
  margin: 0 0 18px;
}
.about-split p { color: var(--text-muted); line-height: 1.7; margin-bottom: 24px; }
.bg-ivory { background: var(--ivory); }

/* Value props */
.value-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.value-card {
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: 6px;
}
.value-card h3 { font-size: 17px; margin: 0 0 12px; }
.value-card p { color: var(--text-muted); font-size: 14px; line-height: 1.6; margin: 0; }

/* Products page */
.product-line-title {
  font-family: var(--font-serif);
  font-size: 22px;
  margin: 56px 0 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--gold);
  display: inline-block;
}

/* Projects gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.gallery-grid img { aspect-ratio: 3/4; object-fit: cover; border-radius: 4px; }
.gallery-grid .wide { grid-column: span 2; aspect-ratio: 16/9; }

/* Forms */
.form-layout {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 56px;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-grid .full { grid-column: 1 / -1; }
label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
}
label .req { color: var(--gold); }
input, select, textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: var(--font-sans);
  font-size: 14px;
  background: var(--white);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--gold); border-color: var(--gold); }
textarea { resize: vertical; min-height: 100px; }
.contact-info { background: var(--ivory); padding: 32px; border-radius: 6px; }
.contact-info h3 { font-family: var(--font-serif); font-size: 18px; margin-top: 0; }
.contact-info p { margin: 8px 0; color: var(--text-muted); font-size: 14px; }
.alert { padding: 14px 18px; border-radius: 4px; margin-bottom: 20px; font-size: 14px; }
.alert-success { background: #E7F3E8; color: #2C5E33; }
.alert-error { background: #FBE9E7; color: #A13A2C; }

/* Contato page */
.contato-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}

/* Footer */
.site-footer {
  background: var(--dark);
  color: var(--ivory);
  padding: 56px 32px 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
  max-width: 1200px;
  margin: 0 auto 32px;
}
.footer-grid h4 {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 12px;
  color: var(--gold);
  margin: 0 0 16px;
}
.footer-grid a, .footer-grid p { font-size: 13px; opacity: 0.8; line-height: 2; }
.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.12);
  font-size: 12px;
  opacity: 0.6;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

/* Responsive */
@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .hero h1 { font-size: 28px; }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .about-split, .form-layout, .contato-grid, .value-grid, .footer-grid, .gallery-grid { grid-template-columns: 1fr; }
  .gallery-grid .wide { grid-column: span 1; }
  .form-grid { grid-template-columns: 1fr; }
}