:root {
  --red: #8B1A1A;
  --red-deep: #5C0F0F;
  --red-bright: #B22222;
  --gold: #D4A857;
  --gold-bright: #E8C074;
  --charcoal: #1C1C1C;
  --graphite: #2D2D2D;
  --graphite-light: #232323;
  --slate: #4A4A4A;
  --gold-ink: #3d2a08;
  --marble: #F5F2EE;
  --cream: #FAF8F5;
  --snow: #FFFDFA;
  --line: rgba(0, 0, 0, 0.08);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  --radius: 8px;
}

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

/* Seleção de texto na cor da marca: detalhe premium, não o azul padrão do navegador */
::selection { background: var(--red); color: var(--marble); }

html {
  scroll-behavior: smooth;
  /* compensa o header fixo: âncoras (#sobre, #servicos...) não ficam escondidas sob ele */
  scroll-padding-top: 5rem;
}

/* Sem movimento: rolagem instantânea (smooth scroll também é movimento).
   Vem depois da regra html{} acima para vencer por ordem de cascata. */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* Skip-link: oculto até receber foco por teclado */
.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 300;
  padding: 0.75rem 1.25rem;
  background: var(--red);
  color: var(--marble);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transform: translateY(-150%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
  outline: 2px solid var(--marble);
  outline-offset: 2px;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--charcoal);
  background: var(--cream);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.15;
  text-wrap: balance;
}

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

section { padding: 7rem 0; }

.section-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 1rem;
  text-align: center;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.25rem);
  margin-bottom: 1.5rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-title em {
  font-style: italic;
  color: var(--red);
}

.section-lead {
  font-size: 1.1rem;
  color: var(--slate);
  max-width: 680px;
  margin-bottom: 4rem;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  text-wrap: pretty;
}

.cta-btn {
  display: inline-block;
  padding: 0.85rem 2rem;
  background: var(--red);
  color: var(--marble);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: background 0.3s, border-color 0.3s, color 0.3s,
              transform 0.12s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid var(--red);
}

.cta-btn:hover {
  background: var(--red-deep);
  border-color: var(--red-deep);
  transform: translateY(-2px);
}

/* Press tátil: a peça afunda de leve ao toque/clique */
.cta-btn:active { transform: translateY(0) scale(0.97); }

/* Foco por teclado: anel óxido + offset, mesma doutrina dos tiles (galeria/chapas).
   Sobre fundo escuro (hero, CTA) o anel vira mármore para manter contraste. */
.cta-btn:focus-visible {
  outline: 3px solid var(--red);
  outline-offset: 3px;
}
.hero .cta-btn:focus-visible,
.cta-section .cta-btn:focus-visible {
  outline-color: var(--marble);
}

.cta-btn.outline {
  background: transparent;
  color: var(--red);
}

.cta-btn.outline:hover {
  background: var(--red);
  color: var(--marble);
}

/* Botão dourado com reflexo vermelho atravessando */
.cta-btn-gold {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-bright) 55%, var(--gold) 100%);
  border-color: var(--gold-bright);
  color: var(--gold-ink);
  box-shadow:
    0 8px 22px rgba(178, 34, 34, 0.22),
    0 2px 6px rgba(61, 42, 8, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.45);
  transition: transform 0.12s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease, filter 0.3s ease;
}

.cta-btn-gold:active { transform: translateY(-1px) scale(0.97); }

.cta-btn-gold:hover {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-bright) 55%, var(--gold) 100%);
  border-color: var(--gold-bright);
  color: var(--gold-ink);
  transform: translateY(-3px);
  filter: brightness(1.06);
  box-shadow:
    0 14px 34px rgba(178, 34, 34, 0.35),
    0 4px 10px rgba(61, 42, 8, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

/* O reflexo: brilho branco + tinta vermelha em diagonal */
.cta-btn-gold::after {
  content: '';
  position: absolute;
  top: 0;
  left: -150%;
  width: 65%;
  height: 100%;
  background: linear-gradient(
    120deg,
    transparent 0%,
    rgba(255, 255, 255, 0.42) 40%,
    rgba(178, 34, 34, 0.32) 54%,
    transparent 78%
  );
  transform: skewX(-22deg);
  pointer-events: none;
  /* Padrão (touch / sem mouse de verdade): o reflexo passa sozinho a cada 5s.
     Cobre celulares que reportam hover incorretamente (pointer continua coarse). */
  animation: ctaBtnLoop 5s ease-in-out infinite;
}

/* Desktop com mouse de verdade: sem loop; o reflexo dispara ao passar o mouse */
@media (hover: hover) and (pointer: fine) {
  .cta-btn-gold::after { animation: none; }
  .cta-btn-gold:hover::after { animation: ctaBtnSweep 0.85s ease-out; }
}

@keyframes ctaBtnSweep {
  from { left: -150%; }
  to   { left: 150%; }
}

/* Loop: varre uma vez (~0.85s) e descansa fora da tela até completar 5s */
@keyframes ctaBtnLoop {
  0%   { left: -150%; }
  17%  { left: 150%; }
  100% { left: 150%; }
}

@media (prefers-reduced-motion: reduce) {
  .cta-btn-gold::after { animation: none; }
  .cta-btn-gold:hover { transform: none; }
}

/* Arredondamento global sutil em botões, cards e tiles */
.cta-btn,
.service-card,
.material,
.client-logo,
.stat,
.testimonial,
.faq-item,
.about-image,
.gallery-item,
.gallery-item img,
.stone-item,
.stone-item img,
.lightbox-fig img {
  border-radius: var(--radius);
}