/* 
   SHORTFLOW PREMIUM DESIGN SYSTEM 
   Versão: 2.0 (Sales Machine Optimized)
*/

:root {
  /* Elegant Dark Palette */
  --bg-deep: #020617;
  --bg-surface: #0f172a;
  --bg-glass: rgba(15, 23, 42, 0.6);
  
  /* Vibrant Brand Colors */
  --primary: #7c3aed;
  --primary-light: #a78bfa;
  --secondary: #ec4899;
  --accent: #06b6d4;
  
  /* Gradients */
  --grad-main: linear-gradient(135deg, #7c3aed 0%, #ec4899 50%, #06b6d4 100%);
  --grad-surface: linear-gradient(180deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0) 100%);
  --grad-glow: radial-gradient(circle at center, rgba(124, 58, 237, 0.15) 0%, transparent 70%);

  /* Typography */
  --font-main: 'Manrope', system-ui, -apple-system, sans-serif;
  
  /* Spacing & Shadows */
  --container-w: 1200px;
  --shadow-premium: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.05);
}

/* === RESET & BASE === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }

body {
  font-family: var(--font-main);
  background-color: var(--bg-deep);
  color: #f1f5f9;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Background Decoration */
body::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 1000px;
  background: var(--grad-glow);
  z-index: -1;
  pointer-events: none;
}

.container { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }

/* === TYPOGRAPHY === */
h1, h2, h3, h4 { color: #fff; font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; }

.gradient-text {
  background: var(--grad-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem; font-weight: 800; letter-spacing: 0.2rem;
  text-transform: uppercase; color: var(--primary-light);
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 1.5rem;
}

.section-subtitle {
  font-size: 1.125rem; color: #94a3b8;
  max-width: 600px; margin: 0 auto 4rem;
}

/* === BUTTONS === */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 1rem 2rem; border-radius: 12px;
  font-weight: 700; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer; border: none; font-size: 1rem; gap: 0.5rem;
}

.btn-primary {
  background: var(--grad-main);
  color: #fff;
  box-shadow: 0 10px 30px rgba(124, 58, 237, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 40px rgba(124, 58, 237, 0.5);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.btn-lg { padding: 1.25rem 2.5rem; font-size: 1.1rem; }
.btn-sm { padding: 0.6rem 1.2rem; font-size: 0.85rem; }

/* === NAV === */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 1.5rem 0; transition: all 0.4s ease;
}

.nav-scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: 0.8rem 0;
}

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

.nav-logo-img { height: 35px; }

.nav-links { display: flex; gap: 2.5rem; }
.nav-links a {
  font-size: 0.9rem; font-weight: 500; color: #94a3b8;
  transition: color 0.3s;
}
.nav-links a:hover { color: #fff; }

/* === HERO === */
.hero {
  padding: 180px 0 100px;
  position: relative;
}

.hero-grid {
  display: grid; grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem; align-items: center;
}

.hero-content { position: relative; z-index: 2; }

.badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 1rem; border-radius: 100px;
  background: rgba(124, 58, 237, 0.1);
  border: 1px solid rgba(124, 58, 237, 0.2);
  font-size: 0.8rem; font-weight: 700; color: var(--primary-light);
  margin-bottom: 2rem;
}

.hero-headline { margin-bottom: 2rem; }
.hero-subtitle { margin-left: 0; text-align: left; margin-bottom: 3rem; font-size: 1.25rem; }

.hero-ctas { display: flex; gap: 1rem; }

.hero-visual {
  position: relative;
}

.hero-img-wrapper {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-premium);
}

.hero-img { width: 100%; display: block; }

/* Glow effect behind visual */
.hero-visual::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 120%; height: 120%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.1) 0%, transparent 70%);
  z-index: -1;
}

/* === PAIN SECTION (The "Problem") === */
.pain-section { padding: 100px 0; border-top: 1px solid rgba(255, 255, 255, 0.05); }

.cards-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}

.premium-card {
  padding: 3rem 2rem; border-radius: 24px;
  background: var(--grad-surface);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.premium-card:hover {
  transform: translateY(-10px);
  border-color: rgba(124, 58, 237, 0.3);
  box-shadow: 0 30px 60px rgba(0,0,0,0.5);
}

.card-icon {
  width: 60px; height: 60px; border-radius: 16px;
  background: rgba(124, 58, 237, 0.1);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.5rem; color: var(--primary-light);
}

.card-title { font-size: 1.25rem; margin-bottom: 1rem; }
.card-text { font-size: 0.95rem; color: #94a3b8; }

/* === FEATURES === */
.features { padding: 100px 0; }

.feature-split {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 6rem; align-items: center; margin-bottom: 120px;
}

.feature-split:nth-child(even) { direction: rtl; }
.feature-split:nth-child(even) > * { direction: ltr; }

.feature-content h3 { font-size: 2rem; margin-bottom: 1.5rem; }
.feature-content p { font-size: 1.1rem; color: #94a3b8; margin-bottom: 2rem; }

.check-list { list-style: none; margin-bottom: 2rem; }
.check-list li {
  display: flex; align-items: center; gap: 0.75rem;
  margin-bottom: 0.75rem; color: #cbd5e1; font-weight: 500;
}
.check-list li svg { color: var(--accent); flex-shrink: 0; }

.visual-mockup {
  border-radius: 20px;
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-premium);
  overflow: hidden;
}

/* === PRICING === */
.pricing { padding: 100px 0; position: relative; }

.pricing-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem;
  align-items: center;
}

.price-card {
  padding: 3.5rem 2.5rem; border-radius: 32px;
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.05);
  text-align: center;
  transition: all 0.4s ease;
}

.price-card.featured {
  background: linear-gradient(180deg, rgba(124, 58, 237, 0.1) 0%, rgba(15, 23, 42, 1) 100%);
  border-color: rgba(124, 58, 237, 0.5);
  transform: scale(1.05);
  position: relative;
}

.popular-tag {
  position: absolute; top: 0; left: 50%; transform: translate(-50%, -50%);
  background: var(--grad-main); color: #fff;
  padding: 0.5rem 1.5rem; border-radius: 100px;
  font-size: 0.75rem; font-weight: 800; text-transform: uppercase;
}

.price-val { font-size: 4rem; font-weight: 800; margin: 1.5rem 0; }
.price-val span { font-size: 1rem; color: #94a3b8; font-weight: 400; }

.price-features { margin: 2rem 0; text-align: left; }
.price-features li {
  padding: 0.75rem 0; border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.9rem; color: #94a3b8; display: flex; align-items: center; gap: 0.5rem;
}
.price-features li::before { content: '✦'; color: var(--primary-light); }

/* === FAQ === */
.faq { padding: 100px 0; }
.faq-container { max-width: 800px; margin: 0 auto; }

details {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 16px; margin-bottom: 1rem;
  overflow: hidden;
}

summary {
  padding: 1.5rem; cursor: pointer; font-weight: 600;
  display: flex; justify-content: space-between; align-items: center;
  user-select: none;
}

summary::-webkit-details-marker { display: none; }
summary::after { content: '＋'; color: var(--primary-light); font-size: 1.2rem; }
details[open] summary::after { content: '－'; }

.faq-content { padding: 0 1.5rem 1.5rem; color: #94a3b8; font-size: 0.95rem; }

/* === FOOTER === */
.footer {
  padding: 80px 0 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(0,0,0,0.2);
}

.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 4rem;
  margin-bottom: 60px;
}

.footer-logo { height: 40px; margin-bottom: 1.5rem; }
.footer-text { color: #64748b; font-size: 0.9rem; }

.footer-title { font-size: 1rem; margin-bottom: 1.5rem; color: #fff; }
.footer-links a { display: block; margin-bottom: 0.75rem; color: #64748b; font-size: 0.9rem; transition: color 0.3s; }
.footer-links a:hover { color: var(--primary-light); }

.copy { text-align: center; color: #334155; font-size: 0.8rem; padding-top: 40px; border-top: 1px solid rgba(255,255,255,0.03); }

/* === ANIMATIONS === */
.reveal { opacity: 0; transform: translateY(30px); transition: all 0.8s ease-out; }
.reveal.active { opacity: 1; transform: translateY(0); }

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .hero-grid, .feature-split { grid-template-columns: 1fr; gap: 3rem; text-align: center; }
  .feature-split:nth-child(even) { direction: ltr; }
  .hero-subtitle, .feature-content p { margin-left: auto; margin-right: auto; }
  .hero-ctas { justify-content: center; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 450px; margin: 0 auto; }
  .price-card.featured { transform: scale(1); }
  .footer-grid { grid-template-columns: 1fr; gap: 3rem; }
}