/* ========================================
   FLOW VIAGENS — Design System
   ======================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --coral: #FF6F61;
  --coral-light: #FF8E7E;
  --coral-dark: #E85A4F;
  --coral-bg: #FFF5F3;
  --charcoal: #1a1a2e;
  --charcoal-light: #2d2d44;
  --gray-50: #fafafa;
  --gray-100: #f4f4f5;
  --gray-200: #e4e4e7;
  --gray-300: #d4d4d8;
  --gray-400: #a1a1aa;
  --gray-500: #71717a;
  --gray-600: #52525b;
  --gray-700: #3f3f46;
  --white: #ffffff;
  --shadow-sm: 0 1px 3px rgba(26,26,46,0.06);
  --shadow-md: 0 4px 20px rgba(26,26,46,0.08);
  --shadow-lg: 0 12px 40px rgba(26,26,46,0.12);
  --shadow-coral: 0 8px 30px rgba(255,111,97,0.25);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', -apple-system, sans-serif;
  color: var(--charcoal);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========================================
   NAVIGATION
   ======================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: transparent;
}

.nav.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--gray-200);
  padding: 12px 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 90px;
  width: auto;
  object-fit: contain;
}

.footer-logo-img {
  height: 80px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--white);
  transition: var(--transition);
  position: relative;
}

.nav.scrolled .nav-links a { color: var(--charcoal); }
.nav-links a:hover { color: var(--coral); }

.nav-cta {
  background: var(--coral) !important;
  color: var(--white) !important;
  padding: 10px 24px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.85rem !important;
  transition: var(--transition);
  box-shadow: var(--shadow-coral);
}

.nav-cta:hover {
  background: var(--coral-dark) !important;
  transform: translateY(-2px);
}

.nav-mobile {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-mobile span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  margin: 5px 0;
  transition: var(--transition);
}

.nav.scrolled .nav-mobile span { background: var(--charcoal); }

/* ========================================
   HERO
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: url('assets/hero-bg.png') center/cover no-repeat;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,26,46,0.85) 0%, rgba(26,26,46,0.6) 50%, rgba(255,111,97,0.3) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  padding: 120px 0 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255,111,97,0.15);
  border: 1px solid rgba(255,111,97,0.3);
  border-radius: 100px;
  color: var(--coral-light);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.08;
  color: var(--white);
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--coral), var(--coral-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.8);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 32px;
  background: var(--coral);
  color: var(--white);
  border-radius: 100px;
  font-weight: 700;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-coral);
}

.btn-primary:hover {
  background: var(--coral-dark);
  transform: translateY(-3px);
  box-shadow: 0 12px 35px rgba(255,111,97,0.35);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 32px;
  background: rgba(255,255,255,0.1);
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 100px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

/* ========================================
   SOCIAL PROOF BAR
   ======================================== */
.proof-bar {
  background: var(--charcoal);
  padding: 48px 0;
  position: relative;
}

.proof-bar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--coral), var(--coral-light), var(--coral));
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.proof-item .number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--coral);
  line-height: 1;
  margin-bottom: 8px;
}

.proof-item .label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  font-weight: 500;
}

/* ========================================
   SECTION COMMON
   ======================================== */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  padding: 6px 14px;
  background: var(--coral-bg);
  color: var(--coral);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ========================================
   HOW IT WORKS
   ======================================== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  position: relative;
}

.steps-grid::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 15%;
  right: 15%;
  height: 2px;
  background: linear-gradient(90deg, var(--coral), var(--coral-light), var(--coral));
  opacity: 0.3;
}

.step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--coral), var(--coral-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  margin: 0 auto 20px;
  position: relative;
  z-index: 2;
  box-shadow: var(--shadow-coral);
}

.step h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step p {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ========================================
   PRODUCTS
   ======================================== */
.products-section { background: var(--gray-50); }

.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 36px;
  border: 1px solid var(--gray-200);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--coral), var(--coral-light));
  opacity: 0;
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--coral-light);
}

.product-card:hover::before { opacity: 1; }

.product-card.featured {
  border: 2px solid var(--coral);
  background: linear-gradient(180deg, var(--coral-bg) 0%, var(--white) 40%);
}

.product-card.featured::before { opacity: 1; }

.product-icon {
  width: 56px;
  height: 56px;
  background: var(--coral-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.product-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 4px 12px;
  background: var(--coral);
  color: var(--white);
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
}

.product-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.product-price {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--coral);
  margin-bottom: 16px;
}

.product-price small {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--gray-500);
}

.product-features {
  margin-bottom: 24px;
}

.product-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.9rem;
  color: var(--gray-600);
}

.product-features li::before {
  content: '✓';
  color: var(--coral);
  font-weight: 700;
  flex-shrink: 0;
}

.product-cta {
  display: block;
  width: 100%;
  padding: 14px;
  text-align: center;
  border-radius: 100px;
  font-weight: 700;
  font-size: 0.9rem;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.product-cta.primary {
  background: var(--coral);
  color: var(--white);
  box-shadow: var(--shadow-coral);
}

.product-cta.primary:hover {
  background: var(--coral-dark);
  transform: translateY(-2px);
}

.product-cta.outline {
  background: transparent;
  color: var(--coral);
  border: 2px solid var(--coral);
}

.product-cta.outline:hover {
  background: var(--coral-bg);
}

/* ========================================
   DIFFERENTIALS
   ======================================== */
.diff-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.diff-content h2 {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  line-height: 1.15;
}

.diff-content > p {
  color: var(--gray-500);
  margin-bottom: 32px;
  font-size: 1.05rem;
}

.diff-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.diff-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.diff-item-icon {
  width: 48px;
  height: 48px;
  background: var(--coral-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.diff-item h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.diff-item p {
  font-size: 0.85rem;
  color: var(--gray-500);
  line-height: 1.5;
}

.diff-visual {
  position: relative;
}

.diff-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
}

.diff-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.diff-card-header h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.economy-amount {
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--coral);
  letter-spacing: -0.03em;
}

.economy-label {
  color: var(--gray-400);
  font-size: 0.85rem;
  margin-top: 4px;
}

.economy-bar {
  margin-top: 24px;
  background: var(--gray-100);
  border-radius: 100px;
  height: 8px;
  overflow: hidden;
}

.economy-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--coral), var(--coral-light));
  border-radius: 100px;
  width: 0%;
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.economy-bar-fill.animate { width: 78%; }

.economy-detail {
  display: flex;
  justify-content: space-between;
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--gray-500);
}

.diff-floating {
  position: absolute;
  top: -20px;
  right: -20px;
  background: var(--charcoal);
  color: var(--white);
  padding: 16px 20px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  font-size: 0.85rem;
}

.diff-floating strong {
  color: var(--coral-light);
  display: block;
  font-size: 1.2rem;
}

/* ========================================
   TESTIMONIALS
   ======================================== */
.testimonials-section { background: var(--charcoal); color: var(--white); }
.testimonials-section .section-tag { background: rgba(255,111,97,0.15); }
.testimonials-section .section-header p { color: rgba(255,255,255,0.6); }

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--charcoal-light);
  border-radius: var(--radius-xl);
  padding: 32px;
  border: 1px solid rgba(255,255,255,0.08);
  transition: var(--transition);
}

.testimonial-card:hover {
  border-color: rgba(255,111,97,0.3);
  transform: translateY(-4px);
}

.testimonial-stars {
  color: #fbbf24;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.testimonial-card blockquote {
  font-size: 0.95rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.8);
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--coral), var(--coral-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.testimonial-info .name {
  font-weight: 600;
  font-size: 0.9rem;
}

.testimonial-info .role {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
}

/* ========================================
   FAQ
   ======================================== */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--gray-200);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  color: var(--charcoal);
  font-family: inherit;
  transition: var(--transition);
}

.faq-question:hover { color: var(--coral); }

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  transition: var(--transition);
  color: var(--gray-500);
}

.faq-item.active .faq-icon {
  background: var(--coral);
  color: var(--white);
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-answer-inner {
  padding-bottom: 24px;
  font-size: 0.95rem;
  color: var(--gray-600);
  line-height: 1.7;
}

/* ========================================
   CTA FINAL
   ======================================== */
.cta-section {
  background: linear-gradient(135deg, var(--coral) 0%, var(--coral-dark) 100%);
  padding: 80px 0;
  text-align: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
}

.cta-section h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  position: relative;
}

.cta-section p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}

.btn-white {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 36px;
  background: var(--white);
  color: var(--coral);
  border-radius: 100px;
  font-weight: 700;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 8px 30px rgba(0,0,0,0.15);
  position: relative;
}

.btn-white:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  background: var(--charcoal);
  color: rgba(255,255,255,0.6);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 16px;
  max-width: 300px;
}

.footer h4 {
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.footer ul li { margin-bottom: 10px; }

.footer ul li a {
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer ul li a:hover { color: var(--coral-light); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
}

/* ========================================
   WHATSAPP FLOAT
   ======================================== */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  transition: var(--transition);
  cursor: pointer;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37,211,102,0.5);
}

.whatsapp-float svg {
  width: 32px;
  height: 32px;
  fill: var(--white);
}

/* ========================================
   ANIMATIONS
   ======================================== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .diff-grid { grid-template-columns: 1fr; gap: 40px; }
  .diff-visual { order: -1; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-mobile { display: block; }
  .proof-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .steps-grid { grid-template-columns: 1fr; gap: 32px; }
  .steps-grid::before { display: none; }
  .products-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .testimonials-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .hero-actions { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}