/* ========================================================
   DETALHES MÁRMORES E GRANITOS — CSS
   Palette: Dark Brown Marble + Gold + Silver Gray
   ======================================================== */

/* ── Tokens ── */
:root {
  --gold:        #C9A96E;
  --gold-light:  #E8C87A;
  --gold-dark:   #9A7A45;
  --brown:       #3D2B1F;
  --brown-mid:   #5C3D28;
  --brown-light: #8B6A4E;
  --gray-dark:   #1A1A1A;
  --gray-mid:    #2A2A2A;
  --gray-light:  #E8E4DF;
  --silver:      #C8C4BC;
  --white:       #F5F2EE;
  --text-main:   #2A2010;
  --text-light:  #6B5B4E;

  --font-serif:  'Cormorant Garamond', Georgia, serif;
  --font-sans:   'Montserrat', sans-serif;

  --transition:  0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
  --shadow-gold: 0 4px 24px rgba(201,169,110,0.25);
  --shadow-card: 0 8px 40px rgba(0,0,0,0.12);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  background: var(--white);
  color: var(--text-main);
  overflow-x: hidden;
  line-height: 1.7;
}
img { display: block; width: 100%; height: 100%; object-fit: cover; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font-sans); }
input, textarea, select {
  font-family: var(--font-sans);
  width: 100%;
}

/* ── Utilities ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.section    { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-tag {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  color: var(--brown);
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-subtitle {
  max-width: 600px;
  margin: 24px auto 0;
  color: var(--text-light);
  font-size: 1rem;
}
.gold-line {
  width: 60px; height: 2px;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold-light), var(--gold-dark));
  margin-top: 4px;
}
.gold-line.center { margin: 4px auto 0; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.btn::after {
  content: '';
  position: absolute; inset: 0;
  background: rgba(255,255,255,0.1);
  transform: translateX(-100%) skewX(-15deg);
  transition: transform 0.4s ease;
}
.btn:hover::after { transform: translateX(110%) skewX(-15deg); }

.btn-gold {
  background: linear-gradient(135deg, var(--brown) 0%, var(--gold-dark) 50%, var(--gold) 100%);
  color: var(--white);
  box-shadow: var(--shadow-gold);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(201,169,110,0.4); }

.btn-outline {
  border: 1.5px solid rgba(255,255,255,0.6);
  color: var(--white);
  background: rgba(255,255,255,0.05);
}
.btn-outline:hover { border-color: var(--gold); color: var(--gold); background: rgba(201,169,110,0.08); }

.btn-full { width: 100%; justify-content: center; }

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(40px); }
  to   { opacity: 1; transform: translateY(0); }
}
.animate-fade-up { animation: fadeUp 0.9s ease forwards; opacity: 0; }
.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* ══════════════════════════════════
   NAVBAR
══════════════════════════════════ */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 0 32px;
  transition: background 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
}
.navbar.scrolled {
  background: rgba(26, 16, 8, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0,0,0,0.4);
  padding: 0 32px;
}
.navbar.scrolled .nav-logo-img { height: 52px; }
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  height: 80px;
}
.nav-logo-img {
  height: 64px;
  width: auto;
  object-fit: contain;
  transition: height var(--transition);
  filter: drop-shadow(0 2px 6px rgba(201,169,110,0.3));
}
.nav-links {
  display: flex; align-items: center; gap: 36px;
}
.nav-link {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(245,242,238,0.85);
  position: relative;
  transition: color var(--transition);
}
.nav-link::after {
  content: '';
  position: absolute; bottom: -4px; left: 0; right: 0; height: 1px;
  background: var(--gold);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.3s ease;
}
.nav-link:hover { color: var(--gold); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.nav-cta {
  padding: 10px 24px;
  background: linear-gradient(135deg, var(--gold-dark), var(--gold));
  color: var(--brown);
  border-radius: 2px;
  font-weight: 700;
}
.nav-link.nav-cta::after { display: none; }
.nav-link.nav-cta:hover { background: linear-gradient(135deg, var(--gold), var(--gold-light)); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; }
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--gold); transition: var(--transition);
}

/* ══════════════════════════════════
   HERO
══════════════════════════════════ */
.hero {
  position: relative;
  height: 100vh; min-height: 700px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background-image: url('hero_bg.png');
  background-size: cover;
  background-position: center;
  transform-origin: center;
  will-change: transform;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(20,12,5,0.45) 0%,
    rgba(30,18,8,0.65) 50%,
    rgba(15,8,3,0.85) 100%
  );
}
.hero-particles {
  position: absolute; inset: 0;
  pointer-events: none;
}
.hero-particle {
  position: absolute;
  width: 2px; height: 2px;
  background: var(--gold-light);
  border-radius: 50%;
  animation: floatParticle linear infinite;
  opacity: 0;
}
@keyframes floatParticle {
  0%   { transform: translateY(100vh) scale(0); opacity: 0; }
  10%  { opacity: 0.6; }
  90%  { opacity: 0.3; }
  100% { transform: translateY(-10vh) scale(1.5); opacity: 0; }
}
.hero-content {
  position: relative; z-index: 2;
  text-align: center;
  padding: 0 24px;
  max-width: 880px;
}
.hero-tag {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 24px;
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 600;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 24px;
}
.hero-title em {
  font-style: italic;
  background: linear-gradient(90deg, var(--gold-light), var(--gold), var(--gold-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(232,220,200,0.85);
  max-width: 560px;
  margin: 0 auto 40px;
  font-weight: 300;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-scroll {
  position: absolute; bottom: 32px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  color: rgba(245,242,238,0.5);
  font-size: 0.65rem; font-weight: 500; letter-spacing: 0.2em; text-transform: uppercase;
  z-index: 2;
}
.scroll-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, var(--gold), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.4; }
  50%       { opacity: 1; }
}

/* ══════════════════════════════════
   STATS BANNER
══════════════════════════════════ */
.stats-banner {
  background: linear-gradient(135deg, var(--brown) 0%, var(--gray-dark) 50%, var(--brown) 100%);
  position: relative;
  overflow: hidden;
}
.stats-banner::before {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    60deg,
    transparent,
    transparent 20px,
    rgba(201,169,110,0.02) 20px,
    rgba(201,169,110,0.02) 22px
  );
}
.stats-inner {
  max-width: 1200px; margin: 0 auto; padding: 60px 32px;
  display: flex; align-items: center; justify-content: center;
  gap: 0; flex-wrap: wrap;
  position: relative; z-index: 1;
}
.stat-item {
  flex: 1; min-width: 140px;
  text-align: center;
  padding: 24px 32px;
}
.stat-num {
  display: block;
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.stat-plus {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  background: linear-gradient(135deg, var(--gold-light), var(--gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-item p {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(232,220,200,0.6);
  margin-top: 8px;
}
.stat-divider {
  width: 1px; height: 60px;
  background: linear-gradient(to bottom, transparent, rgba(201,169,110,0.4), transparent);
}

/* ══════════════════════════════════
   SOBRE
══════════════════════════════════ */
.sobre { background: var(--white); }
.sobre-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.sobre-visual { position: relative; }
.sobre-img-frame {
  position: relative;
  height: 520px;
  overflow: hidden;
}
.sobre-img-frame::before {
  content: '';
  position: absolute; top: 20px; left: 20px; right: -20px; bottom: -20px;
  border: 1.5px solid rgba(201,169,110,0.3);
  z-index: 0;
}
.sobre-img {
  position: relative; z-index: 1;
  height: 100%;
  transition: transform 0.6s ease;
}
.sobre-img-frame:hover .sobre-img { transform: scale(1.03); }
.sobre-badge {
  position: absolute; bottom: 20px; right: -20px; z-index: 2;
  background: linear-gradient(135deg, var(--brown), var(--brown-mid));
  color: var(--gold-light);
  padding: 20px 24px;
  text-align: center;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.badge-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}
.badge-text {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(232,220,200,0.7);
}
.sobre-accent-line {
  position: absolute; top: 0; left: -40px;
  width: 3px; height: 120px;
  background: linear-gradient(to bottom, var(--gold), transparent);
}
.sobre-lead {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--brown);
  margin-bottom: 20px;
  font-style: italic;
  line-height: 1.6;
}
.sobre-body { color: var(--text-light); margin-bottom: 16px; }
.sobre-valores { margin-top: 36px; display: flex; flex-direction: column; gap: 20px; }
.valor-item {
  display: flex; align-items: flex-start; gap: 16px;
}
.valor-icon {
  flex-shrink: 0;
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  color: var(--gold);
  font-size: 0.7rem;
}
.valor-item h4 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  color: var(--brown);
  margin-bottom: 4px;
}
.valor-item p { font-size: 0.85rem; color: var(--text-light); }

/* ══════════════════════════════════
   MATERIAIS
══════════════════════════════════ */
.materiais {
  background: linear-gradient(180deg, var(--gray-light) 0%, var(--white) 100%);
}
.materiais-tabs {
  display: flex; justify-content: center; gap: 0;
  margin-bottom: 48px;
  border: 1.5px solid rgba(61,43,31,0.15);
  border-radius: 2px;
  overflow: hidden;
  width: fit-content;
  margin: 0 auto 48px;
}
.mat-tab {
  padding: 14px 36px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-light);
  background: transparent;
  transition: var(--transition);
  border-right: 1px solid rgba(61,43,31,0.15);
}
.mat-tab:last-child { border-right: none; }
.mat-tab.active, .mat-tab:hover {
  background: linear-gradient(135deg, var(--brown), var(--brown-mid));
  color: var(--gold-light);
}
.materiais-content { display: none; }
.materiais-content.active { display: block; }
.mat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}
.mat-card {
  background: #fff;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition);
}
.mat-card:hover { transform: translateY(-6px); box-shadow: 0 16px 48px rgba(0,0,0,0.15); }
.mat-swatch { height: 160px; transition: transform 0.5s ease; overflow: hidden; }
.mat-swatch-img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.5s ease; }
.mat-card:hover .mat-swatch-img { transform: scale(1.05); }
.mat-card:hover .mat-swatch { transform: scale(1.05); }
.mat-info { padding: 20px 24px 24px; }
.mat-info h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--brown);
  margin-bottom: 8px;
}
.mat-info p { font-size: 0.85rem; color: var(--text-light); margin-bottom: 12px; }
.mat-origin {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--gold-dark);
}
.mat-cta {
  text-align: center; margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid rgba(61,43,31,0.1);
  display: flex; flex-direction: column; align-items: center; gap: 20px;
}
.mat-cta p { color: var(--text-light); font-size: 1rem; }

/* ══════════════════════════════════
   DIFERENCIAIS
══════════════════════════════════ */
.diferenciais {
  background: linear-gradient(135deg, var(--brown) 0%, var(--gray-dark) 100%);
  position: relative;
  overflow: hidden;
}
.diferenciais::before {
  content: '';
  position: absolute; inset: 0;
  background-image: url('hero_bg.png');
  background-size: cover;
  opacity: 0.05;
}
.diferenciais .section-tag  { color: var(--gold-light); }
.diferenciais .section-title { color: var(--white); }
.dif-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  position: relative; z-index: 1;
}
.dif-card {
  padding: 36px 28px;
  border: 1px solid rgba(201,169,110,0.15);
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(4px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.dif-card::before {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold-light));
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s ease;
}
.dif-card:hover { background: rgba(255,255,255,0.07); border-color: rgba(201,169,110,0.35); }
.dif-card:hover::before { transform: scaleX(1); }
.dif-icon {
  width: 48px; height: 48px; margin-bottom: 20px;
  color: var(--gold);
}
.dif-icon svg { width: 100%; height: 100%; }
.dif-card h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  color: var(--white);
  margin-bottom: 12px;
}
.dif-card p { font-size: 0.85rem; color: rgba(232,220,200,0.6); line-height: 1.7; }

/* ══════════════════════════════════
   PORTFÓLIO
══════════════════════════════════ */
.portfolio { background: var(--white); }
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: 300px 240px;
  gap: 16px;
}
.portfolio-item {
  position: relative; overflow: hidden;
  cursor: pointer;
}
.portfolio-item.large { grid-column: span 2; grid-row: span 1; }
.portfolio-item.wide  { grid-column: span 2; }
.portfolio-item img {
  transition: transform 0.7s ease;
  transform-origin: center;
}
.portfolio-item:hover img { transform: scale(1.07); }
.portfolio-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(20,12,5,0.9) 0%, rgba(20,12,5,0.1) 60%, transparent 100%);
  display: flex; align-items: flex-end;
  padding: 28px;
  opacity: 0;
  transition: opacity 0.4s ease;
}
.portfolio-item:hover .portfolio-overlay { opacity: 1; }
.port-tag {
  font-size: 0.65rem; font-weight: 600; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 8px;
}
.portfolio-info h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem; color: var(--white); margin-bottom: 4px;
}
.portfolio-info p { font-size: 0.8rem; color: rgba(232,220,200,0.7); }
.portfolio-cta { text-align: center; margin-top: 48px; }

/* ══════════════════════════════════
   TESTIMONIALS
══════════════════════════════════ */
.testimonials { background: var(--gray-light); }
.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.testi-card {
  background: #fff;
  padding: 36px 32px;
  border-top: 3px solid transparent;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  position: relative;
}
.testi-card:hover { transform: translateY(-4px); border-color: var(--gold); }
.testi-card.featured { border-color: var(--gold); background: var(--brown); }
.testi-quote {
  position: absolute; top: 20px; right: 28px;
  font-family: var(--font-serif);
  font-size: 6rem; line-height: 1;
  color: rgba(201,169,110,0.15);
  font-style: italic;
}
.testi-stars { color: var(--gold); font-size: 1rem; letter-spacing: 2px; margin-bottom: 20px; }
.testi-text {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-style: italic;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 24px;
}
.testi-card.featured .testi-text { color: rgba(232,220,200,0.8); }
.testi-author { display: flex; align-items: center; gap: 14px; }
.testi-avatar {
  width: 44px; height: 44px;
  background: linear-gradient(135deg, var(--brown-mid), var(--gold-dark));
  color: var(--gold-light);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.1rem;
  flex-shrink: 0;
}
.testi-author strong { display: block; color: var(--brown); font-size: 0.9rem; }
.testi-card.featured .testi-author strong { color: var(--gold-light); }
.testi-author span { font-size: 0.75rem; color: var(--text-light); }
.testi-card.featured .testi-author span { color: rgba(232,220,200,0.5); }

/* ══════════════════════════════════
   CONTATO
══════════════════════════════════ */
.contato { background: var(--white); }
.contato-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 64px;
  align-items: start;
}
.contato-card {
  display: flex; align-items: flex-start; gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(61,43,31,0.08);
}
.contato-card:first-child { padding-top: 0; }
.contato-icon {
  flex-shrink: 0;
  width: 40px; height: 40px;
  color: var(--gold);
}
.contato-icon svg { width: 100%; height: 100%; }
.contato-card h4 { font-family: var(--font-serif); color: var(--brown); margin-bottom: 4px; }
.contato-card p { font-size: 0.9rem; color: var(--text-light); line-height: 1.6; }
.btn-whatsapp {
  display: flex; align-items: center; gap: 12px;
  margin-top: 28px;
  background: #25D366;
  color: #fff;
  padding: 14px 24px;
  font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  border-radius: 2px;
  transition: var(--transition);
}
.btn-whatsapp svg { width: 22px; height: 22px; fill: #fff; }
.btn-whatsapp:hover { background: #1ebe5c; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(37,211,102,0.3); }
.contato-form-wrap {
  background: linear-gradient(135deg, #fff 0%, var(--gray-light) 100%);
  border: 1px solid rgba(61,43,31,0.08);
  padding: 48px;
  box-shadow: var(--shadow-card);
}
.contato-form h3 {
  font-family: var(--font-serif);
  font-size: 1.8rem; color: var(--brown);
  margin-bottom: 32px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 20px; }
label {
  display: block;
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--brown-light);
  margin-bottom: 8px;
}
input, textarea, select {
  background: rgba(255,255,255,0.8);
  border: 1.5px solid rgba(61,43,31,0.12);
  padding: 12px 16px;
  font-size: 0.9rem; color: var(--text-main);
  border-radius: 2px;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
  outline: none;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201,169,110,0.15);
}
textarea { resize: vertical; min-height: 120px; }
select { appearance: none; cursor: pointer; }
.form-disclaimer { font-size: 0.7rem; color: var(--text-light); text-align: center; margin-top: 12px; }

/* ══════════════════════════════════
   FOOTER
══════════════════════════════════ */
.footer {
  background: linear-gradient(135deg, var(--gray-dark) 0%, var(--brown) 100%);
  padding: 80px 32px 0;
  position: relative;
  overflow: hidden;
}
.footer::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 64px;
}
.footer-logo { height: 80px; width: auto; object-fit: contain; margin-bottom: 16px; }
.footer-logo-wrap p { font-size: 0.85rem; color: rgba(232,220,200,0.5); line-height: 1.7; }
.footer-links h4, .footer-contact h4 {
  font-family: var(--font-sans);
  font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 20px;
}
.footer-links ul li, .footer-links ul li a {
  font-size: 0.85rem; color: rgba(232,220,200,0.5);
  transition: color 0.25s;
  margin-bottom: 10px; display: block;
}
.footer-links ul li a:hover { color: var(--gold-light); }
.footer-contact p { font-size: 0.85rem; color: rgba(232,220,200,0.5); margin-bottom: 8px; }
.footer-socials { display: flex; gap: 12px; margin-top: 24px; }
.social-link {
  width: 38px; height: 38px;
  border: 1px solid rgba(201,169,110,0.3);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.65rem; font-weight: 700; letter-spacing: 0.05em;
  color: var(--gold);
  border-radius: 2px;
  transition: var(--transition);
}
.social-link:hover { background: var(--gold); color: var(--brown); }
.footer-bottom {
  border-top: 1px solid rgba(201,169,110,0.1);
  padding: 24px 0;
  max-width: 1200px; margin: 0 auto;
  text-align: center;
}
.footer-bottom p { font-size: 0.75rem; color: rgba(232,220,200,0.3); }

/* ══════════════════════════════════
   FLOATING WHATSAPP
══════════════════════════════════ */
.float-whatsapp {
  position: fixed; bottom: 28px; right: 28px; z-index: 999;
  width: 58px; height: 58px;
  background: #25D366;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 24px rgba(37,211,102,0.4);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  animation: floatBtn 3s ease-in-out infinite;
}
.float-whatsapp svg { width: 30px; height: 30px; fill: #fff; }
.float-whatsapp:hover { transform: scale(1.12); box-shadow: 0 8px 32px rgba(37,211,102,0.6); }
@keyframes floatBtn {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-6px); }
}

/* Intersection observer reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-left  { transform: translateX(-30px); }
.reveal-right { transform: translateX(30px); }
.reveal-left.visible, .reveal-right.visible { transform: translateX(0); opacity: 1; }

/* ══════════════════════════════════
   RESPONSIVE
══════════════════════════════════ */
@media (max-width: 992px) {
  .sobre-grid { grid-template-columns: 1fr; gap: 48px; }
  .sobre-visual { order: -1; }
  .sobre-img-frame { height: 360px; }
  .sobre-badge { right: 0; }
  .dif-grid { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .portfolio-item.large { grid-column: span 2; }
  .portfolio-item.wide  { grid-column: span 2; }
  .portfolio-overlay { opacity: 1; }
  .testi-grid { grid-template-columns: 1fr; max-width: 540px; margin: 0 auto; }
  .contato-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .navbar { padding: 0 20px; }
  .nav-links {
    position: fixed; top: 0; right: 0;
    background: rgba(26,16,8,0.97);
    width: 280px; height: 100vh;
    flex-direction: column; justify-content: center; gap: 32px;
    transform: translateX(100%);
    transition: transform 0.4s ease;
    padding: 40px 32px;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-link { font-size: 0.9rem; }
  .nav-toggle { display: flex; }
  .section { padding: 70px 0; }
  .dif-grid { grid-template-columns: 1fr; }
  .portfolio-grid { grid-template-columns: 1fr; }
  .portfolio-item.large, .portfolio-item.wide { grid-column: span 1; }
  .contato-form-wrap { padding: 32px 24px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .stats-inner { gap: 0; }
  .stat-divider { display: none; }
  .materiais-tabs { flex-direction: column; width: 100%; }
  .mat-tab { border-right: none; border-bottom: 1px solid rgba(61,43,31,0.15); }
  .mat-tab:last-child { border-bottom: none; }
}
@media (max-width: 480px) {
  .hero-title { font-size: 2.5rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .container { padding: 0 20px; }
  .sobre-badge { position: static; margin-top: 16px; display: inline-block; }
}