@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

/* --- 1. DESIGN SYSTEM & VARIÁVEIS --- */
:root {
  --font-title: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* Paleta Premium HSL */
  --bg-main: #07080a;
  --bg-surface: #0e1116;
  --bg-card: rgba(18, 22, 29, 0.7);
  --bg-card-hover: rgba(24, 30, 40, 0.85);
  
  --color-primary: #ff6b35; /* Laranja Valência */
  --color-primary-glow: rgba(255, 107, 53, 0.15);
  --color-secondary: #f7b05b; /* Sunset Yellow */
  --color-accent: #ff8c00;
  
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-light: #ffffff;
  
  --border-color: rgba(255, 255, 255, 0.06);
  --border-glow: rgba(255, 107, 53, 0.3);
  
  --gradient-orange: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  --gradient-dark: linear-gradient(180deg, #0d0f13 0%, #07080a 100%);
  --gradient-card-border: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 107, 53, 0.05) 100%);
  --gradient-card-border-hover: linear-gradient(135deg, rgba(255, 107, 53, 0.3) 0%, rgba(247, 176, 91, 0.2) 100%);
}

/* --- 2. GLOBAL RESET & BOOTSTRAP --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(255, 107, 53, 0.04) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(247, 176, 91, 0.03) 0%, transparent 40%);
  background-attachment: fixed;
}

h1, h2, h3, h4 {
  font-family: var(--font-title);
  color: var(--text-light);
  font-weight: 700;
  letter-spacing: -0.02em;
}

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

/* --- 3. BARRA DE NAVEGAÇÃO PREMIUM --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(7, 8, 10, 0.7);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 1.4rem;
  background: var(--gradient-orange);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: var(--color-primary);
}

/* Idioma Selector */
.lang-selector {
  display: flex;
  gap: 0.25rem;
  background: rgba(255, 255, 255, 0.04);
  padding: 0.25rem;
  border-radius: 9999px;
  border: 1px solid var(--border-color);
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.35rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.lang-btn:hover {
  color: var(--text-light);
}

.lang-btn.active {
  background: var(--gradient-orange);
  color: #000;
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.2);
}

.btn-nav-cta {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-nav-cta:hover {
  background: var(--text-light);
  color: var(--bg-main);
  border-color: var(--text-light);
}

/* --- 4. HERO SECTION --- */
.hero {
  padding: 11rem 2rem 6rem;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 4rem;
  align-items: center;
  width: 100%;
}

.hero-content {
  text-align: left;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero h1 {
  font-size: 3.8rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  font-weight: 800;
  text-align: left;
  background: linear-gradient(135deg, #ffffff 0%, #a1a1aa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p.subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 650px;
  margin-bottom: 3rem;
  font-weight: 400;
  line-height: 1.7;
  text-align: left;
}

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

/* --- MOCKUP 3D DO LIVRO/GUIA --- */
.book-container {
  position: relative;
  perspective: 1200px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.book {
  width: 250px;
  height: 350px;
  position: relative;
  transform-style: preserve-3d;
  transform: rotateY(-22deg) rotateX(10deg);
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
  animation: floatBook 6s ease-in-out infinite;
}

@keyframes floatBook {
  0%, 100% {
    transform: rotateY(-22deg) rotateX(10deg) translateY(0);
  }
  50% {
    transform: rotateY(-18deg) rotateX(12deg) translateY(-12px);
  }
}

.book:hover {
  transform: rotateY(-8deg) rotateX(5deg) translateY(-5px);
  animation-play-state: paused;
}

.book-spine {
  width: 30px;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  transform-origin: right center;
  transform: rotateY(-90deg);
  background: linear-gradient(180deg, #d35400 0%, #8e2b00 100%);
  box-shadow: inset 4px 0 10px rgba(0,0,0,0.5);
  border-radius: 3px 0 0 3px;
}

.book-cover {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  transform-style: preserve-3d;
  background: linear-gradient(135deg, #181d28 0%, #07080a 100%);
  border-radius: 0 12px 12px 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.8);
  overflow: hidden;
}

.book-cover-bg {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 60% 40%, rgba(255, 107, 53, 0.22) 0%, transparent 60%);
  transform: rotate(-15deg);
  z-index: 1;
}

.book-cover-content {
  position: relative;
  z-index: 2;
  height: 100%;
  padding: 2.2rem 1.6rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: center;
  align-items: center;
}

.book-cover-badge {
  font-size: 0.6rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  background: var(--gradient-orange);
  color: #000;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  box-shadow: 0 4px 10px rgba(255, 107, 53, 0.3);
}

.book-cover-title {
  font-family: var(--font-title);
  font-size: 2.1rem;
  font-weight: 900;
  line-height: 1.1;
  background: var(--gradient-orange);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-top: 0.75rem;
}

.book-cover-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-top: 0.5rem;
  font-weight: 500;
}

.book-cover-logo {
  font-size: 3.5rem;
  margin: 0.8rem 0;
  filter: drop-shadow(0 10px 15px rgba(255, 107, 53, 0.4));
}

.book-cover-footer {
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  width: 100%;
  padding-top: 0.75rem;
}

.book-shadow {
  width: 250px;
  height: 25px;
  background: rgba(0, 0, 0, 0.75);
  position: absolute;
  bottom: -35px;
  border-radius: 50%;
  filter: blur(10px);
  transform: rotateX(85deg);
  z-index: -1;
  animation: floatShadow 6s ease-in-out infinite;
}

@keyframes floatShadow {
  0%, 100% {
    transform: rotateX(85deg) scale(1);
    opacity: 0.9;
  }
  50% {
    transform: rotateX(85deg) scale(0.85);
    opacity: 0.55;
  }
}

/* CTA Buttons */
.cta-wrapper {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
  width: 100%;
}

.btn-primary {
  background: var(--gradient-orange);
  color: #000000;
  font-family: var(--font-title);
  font-size: 1.2rem;
  font-weight: 800;
  padding: 1.2rem 3rem;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 8px 30px rgba(255, 107, 53, 0.4);
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  display: inline-block;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -50%;
  width: 200%;
  height: 100%;
  background: linear-gradient(
    to right,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.3) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: skewX(-25deg);
  transition: 0.75s;
}

.btn-primary:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 40px rgba(255, 107, 53, 0.6);
}

.btn-primary:hover::after {
  left: 125%;
}

.sub-cta-info {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* --- 5. SEÇÃO DE DORES / AGITAÇÃO --- */
.section {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-subtitle {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
  display: block;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  max-width: 700px;
  margin: 0 auto 1.5rem;
  line-height: 1.2;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border-radius: 16px;
  padding: 3rem 2.5rem;
  border: 1px solid var(--border-color);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    800px circle at var(--mouse-x, 0px) var(--mouse-y, 0px),
    rgba(255, 107, 53, 0.08),
    transparent 40%
  );
  z-index: 1;
  pointer-events: none;
}

.card:hover {
  transform: translateY(-8px);
  background: var(--bg-card-hover);
  border-color: rgba(255, 107, 53, 0.25);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 30px rgba(255, 107, 53, 0.05);
}

.card-icon {
  background: rgba(255, 107, 53, 0.1);
  width: 50px;
  height: 50px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 2rem;
  color: var(--color-primary);
}

.card h3 {
  font-size: 1.35rem;
  margin-bottom: 1.25rem;
  font-weight: 700;
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* --- 6. PILARES DO GUIA --- */
.pillars-section {
  background: linear-gradient(180deg, transparent 0%, #0a0c10 50%, transparent 100%);
  position: relative;
}

.pillar-badge {
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--color-primary);
  background: rgba(255, 107, 53, 0.15);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  display: inline-block;
  margin-bottom: 1.25rem;
}

/* --- 7. ANCORAGEM DE PREÇO --- */
.pricing-container {
  max-width: 900px;
  margin: 0 auto;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

.pricing-info {
  padding: 4rem 3rem;
  border-right: 1px solid var(--border-color);
}

.pricing-action {
  padding: 4rem 3rem;
  background: rgba(255, 107, 53, 0.02);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.anchor-list {
  list-style: none;
  margin-top: 2rem;
}

.anchor-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.anchor-item svg {
  color: #ef4444;
  flex-shrink: 0;
}

.strike {
  text-decoration: line-through;
  color: #ef4444;
  font-weight: 600;
}

.pricing-box {
  margin-bottom: 2rem;
}

.price-tag {
  font-family: var(--font-title);
  font-size: 6rem;
  font-weight: 800;
  line-height: 1;
  background: var(--gradient-orange);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin: 1rem 0;
}

.pricing-guarantee-text {
  font-size: 0.8rem;
  color: var(--color-primary);
  margin-top: 1.5rem;
  font-weight: 600;
}

/* --- 8. SEÇÃO DE GARANTIA --- */
.guarantee-box {
  max-width: 800px;
  margin: 0 auto;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.05) 0%, rgba(247, 176, 91, 0.01) 100%);
  border: 1px solid rgba(255, 107, 53, 0.15);
  border-radius: 20px;
  padding: 4rem;
  display: flex;
  gap: 3rem;
  align-items: center;
}

.guarantee-icon {
  font-size: 4.5rem;
  color: var(--color-primary);
}

.guarantee-content h3 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.guarantee-content p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* --- 9. ANIMAÇÕES & CLASSES DE EFEITO --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* --- 10. ESTRUTURA DOS FOOTERS --- */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 4rem 2rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-top: 1.5rem;
}

.footer-link:hover {
  color: var(--text-light);
}

/* --- 11. PÁGINAS DE RETORNO (SUCESSO E CANCELAMENTO) --- */
.status-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
}

.status-card {
  max-width: 600px;
  width: 100%;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 5rem 4rem;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
}

.status-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  margin: 0 auto 2.5rem;
}

.status-icon.success {
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.3);
  box-shadow: 0 0 30px rgba(16, 185, 129, 0.2);
}

.status-icon.error {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
  box-shadow: 0 0 30px rgba(239, 68, 68, 0.2);
}

.status-card h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.status-card p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 3rem;
  line-height: 1.7;
}

.status-warning {
  margin-top: 2rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
}


/* Mobile Language Switcher */
.mobile-lang-switcher {
  display: none;
  gap: 0.25rem;
  background: rgba(255, 255, 255, 0.04);
  padding: 0.25rem;
  border-radius: 9999px;
  border: 1px solid var(--border-color);
  justify-content: center;
  margin-top: 0.5rem;
}
.mobile-lang-switcher .lang-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.35rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 9999px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.mobile-lang-switcher .lang-btn.active {
  background: var(--gradient-orange);
  color: #000;
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.2);
}
@media (max-width: 768px) {
  .mobile-lang-switcher {
    display: flex;
  }
}

/* --- RESPONSIVIDADE (MOBILE READY) --- */
@media (max-width: 768px) {
  .navbar {
    padding: 1rem;
  }
  .nav-links {
    display: none; /* Simplificado para mobile */
  }
  .hero {
    padding-top: 8rem;
    padding-bottom: 4rem;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }
  .hero-content {
    align-items: center;
    text-align: center;
  }
  .hero h1 {
    font-size: 2.5rem;
    text-align: center;
  }
  .hero p.subtitle {
    font-size: 1.05rem;
    text-align: center;
  }
  .cta-wrapper {
    align-items: center;
  }
  .book-container {
    margin-top: 1rem;
  }
  .pricing-container {
    grid-template-columns: 1fr;
  }
  .pricing-info {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
    padding: 3rem 2rem;
  }
  .pricing-action {
    padding: 3rem 2rem;
  }
  .guarantee-box {
    flex-direction: column;
    text-align: center;
    padding: 2.5rem;
    gap: 1.5rem;
  }
}

/* --- 12. STRIPE CUSTOM GLASS CHECKOUT MODAL --- */
.checkout-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(4, 5, 7, 0.75);
  backdrop-filter: blur(12px);
  z-index: 2000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.checkout-modal.open {
  opacity: 1;
  pointer-events: auto;
}

.glass-checkout {
  background: rgba(14, 18, 25, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  padding: 3.5rem 3rem 3rem;
  width: 90%;
  max-width: 480px;
  position: relative;
  backdrop-filter: blur(30px);
  box-shadow: 
    0 30px 60px rgba(0, 0, 0, 0.6), 
    0 0 100px rgba(255, 107, 53, 0.05),
    inset 0 0 0 1px rgba(255, 255, 255, 0.05);
  transform: translateY(20px) scale(0.96);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.checkout-modal.open .glass-checkout {
  transform: translateY(0) scale(1);
}

.close-modal {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 1.25rem;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.close-modal:hover {
  color: var(--text-light);
  background: rgba(255, 68, 68, 0.2);
  border-color: rgba(255, 68, 68, 0.4);
}

.checkout-summary {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  padding: 1.25rem;
  border-radius: 16px;
  margin-bottom: 2rem;
}

.checkout-mini-book {
  width: 40px;
  height: 55px;
  position: relative;
  transform-style: preserve-3d;
  transform: rotateY(-18deg) rotateX(8deg);
  flex-shrink: 0;
}

.mini-book-spine {
  width: 8px;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  transform-origin: right center;
  transform: rotateY(-90deg);
  background: var(--gradient-orange);
  box-shadow: inset 2px 0 5px rgba(0,0,0,0.4);
}

.mini-book-cover {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  background: #0f1115;
  border-radius: 0 4px 4px 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.checkout-brand {
  font-size: 0.65rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  display: block;
}

.checkout-price {
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-orange);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.payment-message-box {
  background: rgba(239, 68, 68, 0.06);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: #f87171;
  padding: 1rem;
  border-radius: 12px;
  margin-top: 1.5rem;
  font-size: 0.8rem;
  line-height: 1.5;
  text-align: center;
}

.hidden {
  display: none !important;
}

/* Spinner animado */
.spinner {
  width: 20px;
  height: 20px;
  border: 2.5px solid rgba(0, 0, 0, 0.15);
  border-top-color: #000;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Otimização mobile do modal */
@media (max-width: 480px) {
  .glass-checkout {
    padding: 2.5rem 1.5rem 2rem;
  }
}