/* ============================================================
   v9 — Dobra "Obra em Destaque"
   Espelha aeradosaneisdesangue.com.br (PT) / nohumanintheloopbook.com (EN)
   Estética cinematográfica rubro-negra (PT) / tech-noir (EN)
   ============================================================ */

/* ── Reset visual da seção (rompe com o resto do site) ─────── */
.obra-destaque {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
  background: #000;
  color: #f5f5f5;
  isolation: isolate;
}

/* Fundo cinematográfico com gradiente radial + ruído sutil */
.obra-destaque::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 40%, rgba(120, 20, 20, 0.55) 0%, transparent 55%),
    radial-gradient(circle at 75% 65%, rgba(60, 5, 5, 0.65) 0%, transparent 60%),
    linear-gradient(180deg, #000 0%, #0a0000 50%, #000 100%);
  z-index: -2;
}

/* Grão/ruído sobreposto (sutil) para textura de "papel de cinema" */
.obra-destaque::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.15 0 0 0 0 0.02 0 0 0 0 0.02 0 0 0 0.35 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  opacity: 0.35;
  mix-blend-mode: overlay;
  pointer-events: none;
  z-index: -1;
}

/* Variante EN — tech noir (menos rubro, mais azul-preto, grid sutil) */
.obra-destaque.obra-variant-en::before {
  background:
    radial-gradient(circle at 30% 40%, rgba(30, 40, 65, 0.6) 0%, transparent 55%),
    radial-gradient(circle at 75% 65%, rgba(60, 10, 10, 0.3) 0%, transparent 60%),
    linear-gradient(180deg, #050508 0%, #000 100%);
}
.obra-destaque.obra-variant-en::after {
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 48px 48px, 48px 48px;
  opacity: 1;
  mix-blend-mode: normal;
}

/* ── Container ─────────────────────────────────────────────── */
.obra-container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

/* ── Coluna visual: os "anéis" ─────────────────────────────── */
.obra-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* SVG dos anéis fica em .obra-rings */
.obra-rings {
  width: 100%;
  height: 100%;
  max-width: 480px;
  filter: drop-shadow(0 20px 60px rgba(180, 20, 20, 0.35));
  animation: obra-breathe 8s ease-in-out infinite;
}

.obra-variant-en .obra-rings {
  filter: drop-shadow(0 20px 60px rgba(60, 100, 180, 0.25));
}

@keyframes obra-breathe {
  0%, 100% { transform: scale(1); opacity: 0.95; }
  50%      { transform: scale(1.03); opacity: 1; }
}

/* Cintilação sutil de um dos anéis */
.obra-rings .ring-pulse {
  animation: obra-pulse 4s ease-in-out infinite;
  transform-origin: center;
}

@keyframes obra-pulse {
  0%, 100% { opacity: 0.7; }
  50%      { opacity: 1; }
}

/* ── Coluna de texto ───────────────────────────────────────── */
.obra-body {
  position: relative;
}

.obra-eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.35em;
  font-size: 0.75rem;
  color: rgba(255, 100, 100, 0.85);
  padding: 6px 14px;
  border: 1px solid rgba(255, 100, 100, 0.35);
  border-radius: 2px;
  margin-bottom: 24px;
}

.obra-variant-en .obra-eyebrow {
  color: rgba(140, 180, 255, 0.9);
  border-color: rgba(140, 180, 255, 0.35);
}

.obra-title {
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  font-size: clamp(2.25rem, 5vw, 4rem);
  line-height: 1.0;
  color: #fff;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
  text-shadow: 0 2px 30px rgba(180, 20, 20, 0.3);
}

.obra-variant-en .obra-title {
  font-family: 'Inter', 'Playfair Display', sans-serif;
  font-weight: 300;
  letter-spacing: -0.03em;
  text-shadow: 0 2px 30px rgba(60, 100, 180, 0.35);
}

.obra-title em {
  font-style: italic;
  color: rgba(255, 100, 100, 0.95);
}

.obra-variant-en .obra-title em {
  font-style: normal;
  font-weight: 600;
  color: rgba(180, 210, 255, 1);
}

.obra-subtitle {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  font-size: 1.25rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.75);
  margin: 0 0 32px;
  max-width: 480px;
}

.obra-variant-en .obra-subtitle {
  font-family: 'Inter', sans-serif;
  font-style: normal;
  font-weight: 300;
}

/* Frase de tese destacada */
.obra-tese {
  position: relative;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: rgba(240, 240, 240, 0.85);
  padding: 20px 24px 20px 28px;
  margin-bottom: 32px;
  border-left: 2px solid rgba(255, 100, 100, 0.6);
  background: linear-gradient(90deg, rgba(255, 100, 100, 0.06) 0%, transparent 100%);
}

.obra-variant-en .obra-tese {
  border-left-color: rgba(140, 180, 255, 0.6);
  background: linear-gradient(90deg, rgba(140, 180, 255, 0.07) 0%, transparent 100%);
}

.obra-tese::before {
  content: "\201C";
  position: absolute;
  top: -8px;
  left: 8px;
  font-family: 'Playfair Display', serif;
  font-size: 3rem;
  line-height: 1;
  color: rgba(255, 100, 100, 0.3);
}

.obra-variant-en .obra-tese::before {
  color: rgba(140, 180, 255, 0.3);
}

/* CTAs */
.obra-ctas {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.obra-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  text-decoration: none;
  font-family: 'Inter', sans-serif;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: all 0.3s ease;
  border-radius: 2px;
}

.obra-cta-primary {
  background: linear-gradient(135deg, #8b1a1a 0%, #4a0808 100%);
  color: #fff;
  border: 1px solid rgba(255, 100, 100, 0.4);
  box-shadow: 0 8px 24px rgba(139, 26, 26, 0.4);
}

.obra-cta-primary:hover {
  background: linear-gradient(135deg, #a52020 0%, #5a1010 100%);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(165, 32, 32, 0.5);
}

.obra-variant-en .obra-cta-primary {
  background: linear-gradient(135deg, #1e2a4a 0%, #0a1128 100%);
  border-color: rgba(140, 180, 255, 0.35);
  box-shadow: 0 8px 24px rgba(30, 42, 74, 0.4);
}

.obra-variant-en .obra-cta-primary:hover {
  background: linear-gradient(135deg, #2a3a60 0%, #101d40 100%);
  box-shadow: 0 12px 32px rgba(42, 58, 96, 0.5);
}

.obra-cta-ghost {
  background: transparent;
  color: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.obra-cta-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
  transform: translateY(-2px);
}

.obra-cta-arrow {
  display: inline-block;
  transition: transform 0.3s ease;
}

.obra-cta:hover .obra-cta-arrow {
  transform: translateX(4px);
}

/* Micro-linha final: temas do livro */
.obra-tags {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
}

.obra-tags span::before {
  content: "· ";
  margin-right: 4px;
  color: rgba(255, 100, 100, 0.5);
}

.obra-variant-en .obra-tags span::before {
  color: rgba(140, 180, 255, 0.5);
}

.obra-tags span:first-child::before { display: none; }

/* ── Responsivo ────────────────────────────────────────────── */
@media (max-width: 900px) {
  .obra-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .obra-visual { max-width: 320px; margin: 0 auto; }
  .obra-destaque { padding: 72px 0; }
  .obra-title { font-size: clamp(2rem, 8vw, 3rem); }
  .obra-subtitle { font-size: 1.125rem; }
}

@media (max-width: 480px) {
  .obra-container { padding: 0 20px; }
  .obra-ctas { flex-direction: column; align-items: stretch; }
  .obra-cta { justify-content: center; }
}

/* ── Divisor entre as duas edições ─────────────────────────── */
.obra-divider {
  background: #000;
  padding: 32px 0;
  text-align: center;
  border-top: 1px solid rgba(255, 100, 100, 0.15);
  border-bottom: 1px solid rgba(140, 180, 255, 0.15);
}

.obra-divider-label {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  font-family: 'Inter', sans-serif;
  font-size: 0.6875rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
}

.obra-divider-label::before,
.obra-divider-label::after {
  content: "";
  display: inline-block;
  width: 40px;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 100, 100, 0.4), rgba(140, 180, 255, 0.4));
}

/* Padding reduzido quando dobras vêm em sequência (evita respiração dupla) */
.obra-destaque + .obra-divider + .obra-destaque {
  padding-top: 80px;
}