:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-glow: rgba(37, 99, 235, 0.4);
  --secondary: #10b981;
  --secondary-glow: rgba(16, 185, 129, 0.3);
  --accent: #f59e0b;
  --bg-dark: #090d16;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --border: rgba(255, 255, 255, 0.1);
  --border-focus: rgba(59, 130, 246, 0.5);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-sub: #cbd5e1;
  --danger: #ef4444;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(37, 99, 235, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 85% 65%, rgba(16, 185, 129, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 50% 90%, rgba(99, 102, 241, 0.1) 0%, transparent 50%);
  background-attachment: fixed;
}

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

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(9, 13, 22, 0.85);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #fff;
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), #6366f1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px var(--primary-glow);
}

.logo-badge {
  font-size: 0.7rem;
  background: rgba(37, 99, 235, 0.2);
  color: #60a5fa;
  border: 1px solid rgba(96, 165, 250, 0.3);
  padding: 2px 8px;
  border-radius: 20px;
  font-weight: 600;
  margin-left: 6px;
}

.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
}

.nav-links a:hover {
  color: #fff;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #3b82f6);
  color: #fff;
  box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.6);
  background: linear-gradient(135deg, #1d4ed8, #2563eb);
}

.btn-success {
  background: linear-gradient(135deg, #059669, #10b981);
  color: #fff;
  box-shadow: 0 4px 20px var(--secondary-glow);
}

.btn-success:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(16, 185, 129, 0.5);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  border: 1px solid var(--border);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.1rem;
  border-radius: var(--radius-md);
}

.btn-pulse {
  animation: pulse-glow 2.5s infinite;
}

@keyframes pulse-glow {
  0% {
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.7);
  }
  70% {
    box-shadow: 0 0 0 16px rgba(37, 99, 235, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
  }
}

/* Hero Section */
.hero {
  padding: 80px 0 60px;
  text-align: center;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(37, 99, 235, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 50px;
  font-size: 0.85rem;
  color: #93c5fd;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, #60a5fa 0%, #38bdf8 50%, #34d399 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p.lead {
  font-size: 1.25rem;
  color: var(--text-sub);
  max-width: 780px;
  margin: 0 auto 36px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 18px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.trust-badges {
  display: flex;
  justify-content: center;
  gap: 30px;
  color: var(--text-muted);
  font-size: 0.9rem;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Preview / Mockup Card */
.preview-wrapper {
  margin-top: 50px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 30px rgba(37, 99, 235, 0.1);
  backdrop-filter: blur(12px);
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.comp-card {
  padding: 24px;
  border-radius: var(--radius-md);
  text-align: left;
}

.comp-bad {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.comp-good {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.35);
  box-shadow: 0 0 25px rgba(16, 185, 129, 0.1);
}

.comp-badge {
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: 6px;
  font-weight: 700;
  display: inline-block;
  margin-bottom: 12px;
}

.comp-bad .comp-badge {
  background: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
}

.comp-good .comp-badge {
  background: rgba(16, 185, 129, 0.2);
  color: #6ee7b7;
}

.comp-list {
  list-style: none;
  margin-top: 14px;
}

.comp-list li {
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
}

/* Sections */
.section {
  padding: 90px 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 50px;
}

.section-tag {
  color: #60a5fa;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.1rem;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
  transform: translateY(-4px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: #60a5fa;
}

.feature-card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  font-weight: 700;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Calculator Box */
.calc-card {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(30, 41, 59, 0.8));
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.slider-group label {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 1rem;
}

.slider-value {
  color: #60a5fa;
  font-weight: 700;
}

input[type="range"] {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: #334155;
  outline: none;
  accent-color: var(--primary);
  cursor: pointer;
}

.calc-result-box {
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.4);
  border-radius: var(--radius-md);
  padding: 30px;
  text-align: center;
}

.calc-big-num {
  font-size: 3.5rem;
  font-weight: 800;
  color: #38bdf8;
  line-height: 1;
  margin: 14px 0 6px;
}

/* Steps (Como Funciona) */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  position: relative;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  position: relative;
}

.step-number {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), #6366f1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.2rem;
  margin: 0 auto 20px;
  box-shadow: 0 0 15px var(--primary-glow);
}

.step-card h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.step-card p {
  color: var(--text-muted);
  font-size: 0.92rem;
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
  align-items: stretch;
}

.price-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 30px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
}

.price-card.featured {
  background: linear-gradient(180deg, rgba(30, 58, 138, 0.4) 0%, rgba(15, 23, 42, 0.9) 100%);
  border: 2px solid #3b82f6;
  box-shadow: 0 0 35px rgba(37, 99, 235, 0.35);
  transform: scale(1.04);
}

.featured-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(90deg, #2563eb, #10b981);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 16px;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.price-header h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.price-header p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.price-value {
  margin-bottom: 24px;
}

.price-value .currency {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-sub);
}

.price-value .amount {
  font-size: 3.2rem;
  font-weight: 800;
  color: #fff;
}

.price-value .period {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.price-features {
  list-style: none;
  margin-bottom: 30px;
  flex-grow: 1;
}

.price-features li {
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--text-sub);
}

.price-features li.disabled {
  color: #64748b;
  text-decoration: line-through;
}

/* Guarantee Box */
.guarantee-box {
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  align-items: center;
  gap: 30px;
  margin-top: 60px;
}

.guarantee-icon {
  font-size: 3.5rem;
  color: #f59e0b;
}

/* FAQ Accordion */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-question {
  padding: 20px 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 1.05rem;
  user-select: none;
}

.faq-question:hover {
  background: rgba(255, 255, 255, 0.02);
}

.faq-answer {
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
  display: none;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  display: block;
}

.faq-icon {
  transition: transform 0.3s;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

/* Modal Checkout */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
  padding: 20px;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-container {
  background: #0f172a;
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-lg);
  max-width: 520px;
  width: 100%;
  padding: 32px;
  position: relative;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), 0 0 30px rgba(37, 99, 235, 0.2);
  max-height: 90vh;
  overflow-y: auto;
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
}

.modal-close:hover {
  color: #fff;
}

.form-group {
  margin-bottom: 16px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-sub);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  background: #1e293b;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 10px var(--primary-glow);
}

.qr-code-box {
  background: #fff;
  padding: 16px;
  border-radius: var(--radius-md);
  display: inline-block;
  margin: 16px auto;
}

.qr-code-box img {
  display: block;
  width: 200px;
  height: 200px;
}

.copia-cola-box {
  background: #1e293b;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px;
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 12px;
}

.copia-cola-input {
  background: transparent;
  border: none;
  color: #94a3b8;
  font-family: monospace;
  font-size: 0.8rem;
  width: 100%;
  outline: none;
}

.status-badge-live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: #fbbf24;
  border-radius: 50%;
  animation: pulse-dot 1.5s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.3); }
}

/* Success Card */
.key-box-reveal {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(5, 150, 105, 0.2));
  border: 2px dashed #10b981;
  border-radius: var(--radius-md);
  padding: 20px;
  margin: 20px 0;
  text-align: center;
}

.key-code {
  font-family: monospace;
  font-size: 1.5rem;
  font-weight: 800;
  color: #34d399;
  letter-spacing: 2px;
  word-break: break-all;
}

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 50px 0 30px;
  background: rgba(9, 13, 22, 0.95);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 30px;
}

/* Responsiveness */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.2rem;
  }
  .comparison-grid, .calc-grid {
    grid-template-columns: 1fr;
  }
  .price-card.featured {
    transform: none;
  }
  .nav-links {
    display: none;
  }
  .guarantee-box {
    flex-direction: column;
    text-align: center;
  }
}