/* ==========================================================================
   ZERBIFOOT — SITE OFICIAL & INSTITUCIONAL (ZERBINARTS STUDIOS)
   Arquitetura Visual: Bootstrap 5.3 + Material Design 3 (Dark Mode Corporativo)
   Estética: Jogo Indie de Prestígio (Steam / Editorial)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,400;0,500;0,600;0,700;0,800;0,900;1,700;1,800&family=JetBrains+Mono:wght@500;600;700&display=swap');

:root {
  /* Paleta Institucional Dark Mode (Material Design 3 Surface System) */
  --zf-bg-base: #121212;
  --zf-bg-elevated: #18181b;
  --zf-surface-card: #1c1c21;
  --zf-surface-card-hover: #222228;
  --zf-surface-high: #27272f;
  --zf-surface-glass: rgba(18, 18, 18, 0.82);

  /* Bordas e Divisores Sutis */
  --zf-border-subtle: rgba(255, 255, 255, 0.08);
  --zf-border-strong: rgba(255, 255, 255, 0.14);
  --zf-border-brand: rgba(16, 185, 129, 0.38);

  /* Cores Institucionais Zerbifoot (Esmeralda Sóbrio & Acentos M3) */
  --zf-primary: #10b981;
  --zf-primary-hover: #34d399;
  --zf-primary-dark: #059669;
  --zf-primary-soft: rgba(16, 185, 129, 0.12);
  --zf-on-primary: #061510;

  /* Cores Secundárias & Apoio Corporativo */
  --zf-accent-amber: #f59e0b;
  --zf-accent-amber-soft: rgba(245, 158, 11, 0.12);
  --zf-accent-sky: #38bdf8;
  --zf-accent-purple: #8b5cf6;

  /* Tipografia & Hierarquia de Texto */
  --zf-text-primary: #f4f4f5;
  --zf-text-secondary: #a1a1aa;
  --zf-text-muted: #71717a;
  --zf-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --zf-font-mono: 'JetBrains Mono', monospace;

  /* Raios de Borda Material Design 3 */
  --zf-radius-sm: 10px;
  --zf-radius-md: 14px;
  --zf-radius-lg: 20px;
  --zf-radius-xl: 28px;
  --zf-radius-pill: 9999px;

  /* Sombras & Elevação M3 */
  --zf-shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.35);
  --zf-shadow-md: 0 12px 32px -4px rgba(0, 0, 0, 0.55);
  --zf-shadow-lg: 0 24px 56px -12px rgba(0, 0, 0, 0.78);
  --zf-shadow-brand: 0 8px 28px -4px rgba(16, 185, 129, 0.32);

  /* Transições Padrão Material 3 (Emphasized & Standard Easing) */
  --zf-ease-standard: cubic-bezier(0.2, 0, 0, 1);
  --zf-transition: all 0.25s cubic-bezier(0.2, 0, 0, 1);
}

/* ==========================================================================
   1. RESET & BASE GLOBAL
   ========================================================================== */
html {
  scroll-behavior: smooth;
  background-color: var(--zf-bg-base);
  color-scheme: dark;
}

body {
  background-color: var(--zf-bg-base);
  background-image:
    radial-gradient(circle at 15% 0%, rgba(16, 185, 129, 0.06) 0%, transparent 45%),
    radial-gradient(circle at 85% 15%, rgba(255, 255, 255, 0.025) 0%, transparent 40%),
    linear-gradient(180deg, var(--zf-bg-base) 0%, var(--zf-bg-elevated) 50%, var(--zf-bg-base) 100%);
  color: var(--zf-text-primary);
  font-family: var(--zf-font-sans);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--zf-text-primary);
  font-weight: 800;
  letter-spacing: -0.025em;
}

p {
  color: var(--zf-text-secondary);
}

a {
  color: var(--zf-primary);
  text-decoration: none;
  transition: var(--zf-transition);
}

a:hover {
  color: var(--zf-primary-hover);
}

.font-mono-tech {
  font-family: var(--zf-font-mono);
}

.text-zf-primary {
  color: var(--zf-primary) !important;
}

.text-zf-secondary {
  color: var(--zf-text-secondary) !important;
}

.text-zf-muted {
  color: var(--zf-text-muted) !important;
}

.bg-zf-elevated {
  background-color: var(--zf-bg-elevated) !important;
}

/* Scrollbar Discreta */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--zf-bg-base);
}

::-webkit-scrollbar-thumb {
  background: #2e2e36;
  border-radius: var(--zf-radius-pill);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--zf-primary);
}

/* ==========================================================================
   2. NAVBAR GLOBAL (FIXA NO TOPO, GLASSMORPHISM SUTIL)
   ========================================================================== */
.zf-navbar {
  background: var(--zf-surface-glass);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--zf-border-subtle);
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
  transition: var(--zf-transition);
}

.zf-navbar.is-scrolled {
  background: rgba(18, 18, 18, 0.94);
  border-bottom-color: var(--zf-border-strong);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.55);
  padding-top: 0.65rem;
  padding-bottom: 0.65rem;
}

.zf-navbar .navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.zf-brand-logo {
  height: 40px;
  width: auto;
  object-fit: contain;
  transition: transform 0.25s var(--zf-ease-standard);
}

.zf-navbar .navbar-brand:hover .zf-brand-logo {
  transform: scale(1.03);
}

.zf-version-pill {
  font-family: var(--zf-font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--zf-text-secondary);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--zf-border-subtle);
  padding: 0.2rem 0.55rem;
  border-radius: var(--zf-radius-pill);
  letter-spacing: 0.03em;
}

.zf-nav-link {
  color: var(--zf-text-secondary) !important;
  font-weight: 600;
  font-size: 0.93rem;
  padding: 0.5rem 1rem !important;
  border-radius: var(--zf-radius-pill);
  transition: var(--zf-transition);
  position: relative;
}

.zf-nav-link:hover,
.zf-nav-link.active {
  color: var(--zf-text-primary) !important;
  background-color: rgba(255, 255, 255, 0.05);
}

.zf-nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background-color: var(--zf-primary);
}

/* Botão Navbar: Pílula Outline em Destaque Sutil */
.btn-zf-nav-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: var(--zf-radius-pill);
  padding: 0.52rem 1.25rem;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--zf-primary);
  background: rgba(16, 185, 129, 0.06);
  border: 1.5px solid rgba(16, 185, 129, 0.45);
  transition: var(--zf-transition);
}

.btn-zf-nav-pill:hover,
.btn-zf-nav-pill.active {
  color: var(--zf-on-primary);
  background: var(--zf-primary);
  border-color: var(--zf-primary);
  box-shadow: 0 4px 18px rgba(16, 185, 129, 0.28);
  transform: translateY(-1px);
}

.navbar-toggler {
  border: 1px solid var(--zf-border-strong);
  padding: 0.45rem 0.65rem;
  border-radius: var(--zf-radius-sm);
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 3px var(--zf-primary-soft);
}

/* ==========================================================================
   3. BOTÕES MATERIAL DESIGN 3 (PRIMÁRIO & SECUNDÁRIO)
   ========================================================================== */
.btn-m3-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.88rem 1.75rem;
  border-radius: var(--zf-radius-pill);
  background: linear-gradient(135deg, var(--zf-primary) 0%, var(--zf-primary-dark) 100%);
  color: var(--zf-on-primary);
  font-weight: 800;
  font-size: 0.96rem;
  letter-spacing: -0.01em;
  border: 1px solid rgba(52, 211, 153, 0.4);
  box-shadow: var(--zf-shadow-brand);
  transition: var(--zf-transition);
}

.btn-m3-primary:hover {
  background: linear-gradient(135deg, var(--zf-primary-hover) 0%, var(--zf-primary) 100%);
  color: var(--zf-on-primary);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px -4px rgba(16, 185, 129, 0.45);
}

.btn-m3-primary:active {
  transform: translateY(0);
}

.btn-m3-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.88rem 1.65rem;
  border-radius: var(--zf-radius-pill);
  background: var(--zf-surface-card);
  color: var(--zf-text-primary);
  font-weight: 700;
  font-size: 0.96rem;
  border: 1px solid var(--zf-border-strong);
  box-shadow: var(--zf-shadow-sm);
  transition: var(--zf-transition);
}

.btn-m3-secondary:hover {
  background: var(--zf-surface-high);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.28);
  transform: translateY(-2px);
}

/* ==========================================================================
   4. BADGES & CHIPS MATERIAL DESIGN 3
   ========================================================================== */
.m3-eyebrow-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.38rem 0.9rem;
  border-radius: var(--zf-radius-pill);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--zf-border-strong);
  color: var(--zf-text-secondary);
  font-family: var(--zf-font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.m3-eyebrow-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--zf-primary);
  box-shadow: 0 0 8px var(--zf-primary);
}

.m3-spec-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--zf-radius-sm);
  background: rgba(24, 24, 27, 0.9);
  border: 1px solid var(--zf-border-subtle);
  color: var(--zf-text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
}

.m3-spec-chip i {
  color: var(--zf-primary);
}

/* ==========================================================================
   5. HERO SECTION (IMPACTO CLEAN & MOCKUP EM PERSPECTIVA)
   ========================================================================== */
.zf-hero-section {
  padding-top: 8.5rem;
  padding-bottom: 5.5rem;
  position: relative;
  overflow: hidden;
}

.zf-hero-title {
  font-size: clamp(2.15rem, 4vw, 3.35rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--zf-text-primary);
}

.zf-hero-highlight {
  background: linear-gradient(135deg, #ffffff 0%, #a7f3d0 55%, var(--zf-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.zf-hero-subtitle {
  font-size: clamp(1rem, 1.35vw, 1.15rem);
  color: var(--zf-text-secondary);
  line-height: 1.7;
  max-width: 580px;
}

/* Mockup 3D em Perspectiva (Estilo Steam Showcase) */
.zf-perspective-wrapper {
  perspective: 1400px;
  position: relative;
}

.zf-perspective-Wrapper::before {
  content: '';
  position: absolute;
  inset: -15px;
  background: radial-gradient(circle at 50% 50%, rgba(16, 185, 129, 0.14), transparent 70%);
  filter: blur(25px);
  z-index: 0;
  pointer-events: none;
}

.zf-mockup-card {
  position: relative;
  z-index: 1;
  background: var(--zf-surface-card);
  border: 1px solid var(--zf-border-strong);
  border-radius: var(--zf-radius-lg);
  box-shadow: var(--zf-shadow-lg), 0 0 0 1px rgba(255, 255, 255, 0.04);
  overflow: hidden;
  transform: rotateY(-6deg) rotateX(3deg);
  transition: transform 0.45s var(--zf-ease-standard), box-shadow 0.45s var(--zf-ease-standard), border-color 0.35s ease;
}

.zf-perspective-wrapper:hover .zf-mockup-card {
  transform: rotateY(0deg) rotateX(0deg) translateY(-4px);
  border-color: var(--zf-border-brand);
  box-shadow: 0 28px 64px -12px rgba(0, 0, 0, 0.85), 0 0 32px rgba(16, 185, 129, 0.14);
}

.zf-mockup-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  background: #141417;
  border-bottom: 1px solid var(--zf-border-subtle);
}

.zf-window-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.zf-window-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
}

.zf-window-dots span:nth-child(3) {
  background: rgba(16, 185, 129, 0.55);
}

.zf-mockup-caption {
  padding: 0.75rem 1.15rem;
  background: rgba(20, 20, 23, 0.95);
  border-top: 1px solid var(--zf-border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.8rem;
}

/* ==========================================================================
   6. SUPERFÍCIES & CARDS DE PILARES (MATERIAL DESIGN 3)
   ========================================================================== */
.zf-section-padding {
  padding-top: 5rem;
  padding-bottom: 5rem;
}

.zf-surface-card {
  background-color: var(--zf-surface-card);
  border: 1px solid var(--zf-border-subtle);
  border-radius: var(--zf-radius-lg);
  padding: 2rem;
  height: auto;
  box-shadow: var(--zf-shadow-sm);
  transition: var(--zf-transition);
  position: relative;
  overflow: hidden;
}

.zf-surface-card:hover {
  background-color: var(--zf-surface-card-hover);
  border-color: var(--zf-border-strong);
  transform: translateY(-4px);
  box-shadow: var(--zf-shadow-md);
}

.zf-pillar-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--zf-radius-md);
  background: var(--zf-primary-soft);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: var(--zf-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.45rem;
  margin-bottom: 1.35rem;
  transition: var(--zf-transition);
}

.zf-surface-card:hover .zf-pillar-icon {
  background: var(--zf-primary);
  color: var(--zf-on-primary);
  transform: scale(1.05);
}

.zf-pillar-title {
  font-size: 1.22rem;
  font-weight: 800;
  color: var(--zf-text-primary);
  margin-bottom: 0.65rem;
}

.zf-pillar-text {
  font-size: 0.95rem;
  color: var(--zf-text-secondary);
  margin-bottom: 0;
  line-height: 1.65;
}

/* Faixa de Telemetria / Números Oficiais */
.zf-metrics-strip {
  background: var(--zf-bg-elevated);
  border-top: 1px solid var(--zf-border-subtle);
  border-bottom: 1px solid var(--zf-border-subtle);
  padding: 2.25rem 0;
}

.zf-metric-item {
  text-align: center;
  padding: 0.5rem 1rem;
}

.zf-metric-value {
  font-family: var(--zf-font-mono);
  font-size: clamp(1.5rem, 2.5vw, 2.1rem);
  font-weight: 800;
  color: var(--zf-text-primary);
  line-height: 1.1;
}

.zf-metric-label {
  font-size: 0.82rem;
  color: var(--zf-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.35rem;
}

/* ==========================================================================
   7. GALERIA SHOWCASE (GRID DE SCREENSHOTS COM ZOOM SUAVE)
   ========================================================================== */
.zf-gallery-card {
  background: var(--zf-surface-card);
  border: 1px solid var(--zf-border-subtle);
  border-radius: var(--zf-radius-lg);
  overflow: hidden;
  box-shadow: var(--zf-shadow-sm);
  transition: var(--zf-transition);
  height: 100%;
  display: flex;
  flex-direction: column;
  cursor: pointer;
}

.zf-gallery-card:hover {
  border-color: var(--zf-border-brand);
  box-shadow: var(--zf-shadow-md);
  transform: translateY(-4px);
}

.zf-gallery-img-wrapper {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #0d0d10;
}

.zf-gallery-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--zf-ease-standard);
}

.zf-gallery-card:hover .zf-gallery-img {
  transform: scale(1.055);
}

.zf-gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(12, 12, 14, 0.85) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  padding: 1rem;
}

.zf-gallery-card:hover .zf-gallery-overlay {
  opacity: 1;
}

.zf-zoom-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--zf-radius-pill);
  background: rgba(18, 18, 18, 0.88);
  border: 1px solid var(--zf-border-strong);
  color: var(--zf-text-primary);
  font-size: 0.78rem;
  font-weight: 600;
}

.zf-gallery-body {
  padding: 1.25rem 1.4rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.zf-gallery-tag {
  font-family: var(--zf-font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--zf-primary);
  letter-spacing: 0.05em;
  margin-bottom: 0.35rem;
}

.zf-gallery-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--zf-text-primary);
  margin-bottom: 0.35rem;
}

.zf-gallery-desc {
  font-size: 0.88rem;
  color: var(--zf-text-secondary);
  margin-bottom: 0;
}

/* ==========================================================================
   8. PÁGINA SOBRE O JOGO (LAYOUT EDITORIAL / ARTIGO MODERNO)
   ========================================================================== */
.zf-editorial-header {
  padding-top: 8.5rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid var(--zf-border-subtle);
}

.zf-editorial-container {
  max-width: 820px;
  margin: 0 auto;
}

.zf-editorial-lead {
  font-size: clamp(1.12rem, 1.5vw, 1.28rem);
  color: #d4d4d8;
  line-height: 1.78;
  font-weight: 400;
  text-align: justify;
}

.zf-editorial-article p {
  font-size: 1.06rem;
  line-height: 1.82;
  color: #b4b4be;
  margin-bottom: 1.5rem;
  text-align: justify;
}

.zf-editorial-article h2 {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--zf-text-primary);
  margin-top: 2.75rem;
  margin-bottom: 1rem;
}

.zf-manifesto-card {
  background: linear-gradient(145deg, #1a1a20 0%, #141418 100%);
  border: 1px solid var(--zf-border-strong);
  border-left: 4px solid var(--zf-primary);
  border-radius: var(--zf-radius-lg);
  padding: 2.25rem;
  margin: 2.5rem 0;
  box-shadow: var(--zf-shadow-md);
}

.zf-studio-signature-box {
  background: var(--zf-surface-card);
  border: 1px solid var(--zf-border-subtle);
  border-radius: var(--zf-radius-lg);
  padding: 1.75rem 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.zf-studio-logo-editorial {
  height: 68px;
  width: auto;
  border-radius: var(--zf-radius-sm);
  object-fit: contain;
  border: 1px solid var(--zf-border-subtle);
}

/* ==========================================================================
   9. PÁGINA DE COMPRA & LICENCIAMENTO (MERCADO PAGO & FAQ)
   ========================================================================== */
.zf-licensing-header {
  padding-top: 8.5rem;
  padding-bottom: 3rem;
}

.zf-pricing-card {
  background: linear-gradient(180deg, #1e1e24 0%, #17171c 100%);
  border: 1px solid var(--zf-border-brand);
  border-radius: var(--zf-radius-xl);
  padding: 2.5rem;
  box-shadow: var(--zf-shadow-lg), 0 0 40px rgba(16, 185, 129, 0.08);
  position: relative;
  overflow: hidden;
}

.zf-pricing-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--zf-radius-pill);
  background: var(--zf-primary-soft);
  border: 1px solid rgba(16, 185, 129, 0.35);
  color: var(--zf-primary-hover);
  font-family: var(--zf-font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.zf-price-old {
  font-family: var(--zf-font-mono);
  font-size: 1.15rem;
  color: var(--zf-text-muted);
  text-decoration: line-through;
  font-weight: 600;
}

.zf-price-current {
  font-family: var(--zf-font-mono);
  font-size: clamp(2.5rem, 4vw, 3.25rem);
  font-weight: 800;
  color: var(--zf-text-primary);
  letter-spacing: -0.03em;
  line-height: 1;
}

.zf-price-currency {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--zf-primary);
  vertical-align: super;
  margin-right: 0.15rem;
}

.zf-benefit-list {
  list-style: none;
  padding: 0;
  margin: 1.75rem 0;
}

.zf-benefit-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--zf-border-subtle);
  color: #d4d4d8;
  font-size: 0.95rem;
}

.zf-benefit-list li:last-child {
  border-bottom: none;
}

.zf-benefit-list li i {
  color: var(--zf-primary);
  font-size: 1.1rem;
  margin-top: 0.1rem;
  flex-shrink: 0;
}

/* Botão de Pagamento Mercado Pago (Institucional & Seguro) */
.btn-mercadopago {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 100%;
  padding: 1.05rem 1.75rem;
  border-radius: var(--zf-radius-md);
  background: linear-gradient(135deg, var(--zf-primary) 0%, var(--zf-primary-dark) 100%);
  color: var(--zf-on-primary);
  font-weight: 800;
  font-size: 1.02rem;
  border: 1px solid rgba(52, 211, 153, 0.45);
  box-shadow: var(--zf-shadow-brand);
  transition: var(--zf-transition);
}

.btn-mercadopago:hover {
  background: linear-gradient(135deg, var(--zf-primary-hover) 0%, var(--zf-primary) 100%);
  color: var(--zf-on-primary);
  transform: translateY(-2px);
  box-shadow: 0 14px 34px -4px rgba(16, 185, 129, 0.45);
}

.zf-step-card {
  background: var(--zf-surface-card);
  border: 1px solid var(--zf-border-subtle);
  border-radius: var(--zf-radius-md);
  padding: 1.4rem 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1.1rem;
  transition: var(--zf-transition);
}

.zf-step-card:hover {
  border-color: var(--zf-border-strong);
  background: var(--zf-surface-card-hover);
}

.zf-step-number {
  width: 38px;
  height: 38px;
  border-radius: var(--zf-radius-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--zf-border-strong);
  color: var(--zf-primary);
  font-family: var(--zf-font-mono);
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Acordeão Bootstrap 5 Customizado (Dark Material 3) */
.zf-accordion .accordion-item {
  background-color: var(--zf-surface-card);
  border: 1px solid var(--zf-border-subtle);
  border-radius: var(--zf-radius-md) !important;
  margin-bottom: 0.85rem;
  overflow: hidden;
}

.zf-accordion .accordion-button {
  background-color: var(--zf-surface-card);
  color: var(--zf-text-primary);
  font-weight: 700;
  font-size: 1rem;
  padding: 1.25rem 1.5rem;
  box-shadow: none !important;
}

.zf-accordion .accordion-button:not(.collapsed) {
  background-color: var(--zf-surface-card-hover);
  color: var(--zf-primary-hover);
  border-bottom: 1px solid var(--zf-border-subtle);
}

.zf-accordion .accordion-button::after {
  filter: invert(1) grayscale(100%) brightness(200%);
}

.zf-accordion .accordion-body {
  color: var(--zf-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  padding: 1.25rem 1.5rem;
  background-color: #16161a;
}

/* ==========================================================================
   10. RODAPÉ GLOBAL (FOOTER PROFISSIONAL)
   ========================================================================== */
.zf-footer {
  background-color: #0e0e11;
  border-top: 1px solid var(--zf-border-subtle);
  padding-top: 4rem;
  padding-bottom: 2.5rem;
  margin-top: auto;
}

.zf-footer-studio-logo {
  height: 54px;
  width: auto;
  border-radius: var(--zf-radius-sm);
  object-fit: contain;
  border: 1px solid var(--zf-border-subtle);
}

.zf-footer-heading {
  font-family: var(--zf-font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--zf-text-primary);
  margin-bottom: 1.1rem;
}

.zf-footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.zf-footer-links li {
  margin-bottom: 0.6rem;
}

.zf-footer-links a {
  color: var(--zf-text-secondary);
  font-size: 0.9rem;
  transition: var(--zf-transition);
}

.zf-footer-links a:hover {
  color: var(--zf-primary);
  padding-left: 3px;
}

.zf-footer-links a.zf-copy-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--zf-border-subtle);
  color: var(--zf-text-muted);
  padding-left: 0 !important;
  transition: var(--zf-transition);
}

.zf-footer-links a.zf-copy-icon-btn:hover {
  color: var(--zf-primary);
  border-color: var(--zf-border-brand);
  background: var(--zf-primary-soft);
  padding-left: 0 !important;
}

/* ==========================================================================
   11. RESPONSIVIDADE (MOBILE & TABLETS)
   ========================================================================== */
@media (max-width: 991.98px) {
  .zf-hero-section {
    padding-top: 7rem;
    padding-bottom: 4rem;
  }

  .zf-mockup-card {
    transform: none;
    margin-top: 1.5rem;
  }

  .zf-navbar .navbar-collapse {
    background: #18181c;
    border: 1px solid var(--zf-border-strong);
    border-radius: var(--zf-radius-md);
    padding: 1rem;
    margin-top: 0.75rem;
    box-shadow: var(--zf-shadow-md);
  }

  .zf-nav-link.active::after {
    display: none;
  }
}

@media (max-width: 575.98px) {
  .zf-pricing-card {
    padding: 1.75rem 1.35rem;
  }

  .zf-manifesto-card {
    padding: 1.5rem;
  }

  .zf-studio-signature-box {
    flex-direction: column;
    align-items: flex-start;
  }
}