:root {
  --bg-color: #0b0f19;
  --card-bg: #151d2f;
  --card-border: #232f48;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent-primary: #ff6b00;
  --accent-hover: #e05e00;
  --accent-subtle: rgba(255, 107, 0, 0.12);
  --accent-border: rgba(255, 107, 0, 0.32);
  --accent-glow: #ffaa40;
  --whatsapp-bg: #25d366;
  --whatsapp-hover: #1eb857;
  --whatsapp-text: #052e16;
  --telegram-bg: #229ed9;
  --telegram-hover: #1b85b8;
  --telegram-text: #ffffff;
  --focus-ring: #ff6b00;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --transition-speed: 0.2s;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 1.5rem 1rem;
}

.container {
  width: 100%;
  max-width: 540px;
  margin: auto;
}

.card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  text-align: center;
}

/* 1. Header & Identity */
.brand-header {
  margin-bottom: 1.25rem;
}

.brand-logo-container {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 0.75rem;
}

.brand-logo {
  max-width: 160px;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  object-fit: contain;
  filter: drop-shadow(0 6px 16px rgba(0, 0, 0, 0.35));
}

.badge-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #ff9d42;
  background: var(--accent-subtle);
  border: 1px solid var(--accent-border);
  border-radius: 9999px;
}

.badge-icon {
  font-size: 0.85rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* 2. Hero Section */
.hero-section {
  margin-bottom: 1.25rem;
}

.headline-hero {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.highlight-cupom {
  color: #ff9d42;
  background: linear-gradient(135deg, #ffaa40 0%, #ff6b00 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subheadline {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 0.5rem;
}

.hero-reinforcement {
  font-size: 0.9rem;
  font-weight: 500;
  color: #cbd5e1;
  margin-bottom: 0.75rem;
}

/* 3. CTA Sections & Buttons */
.cta-section {
  margin-bottom: 1.5rem;
}

.cta-context {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.actions {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 100%;
  min-height: 52px;
  padding: 0.875rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--transition-speed) ease, background-color var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.btn-whatsapp {
  background-color: var(--whatsapp-bg);
  color: var(--whatsapp-text);
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.2);
}

.btn-whatsapp:hover, .btn-whatsapp:focus-visible {
  background-color: var(--whatsapp-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(37, 211, 102, 0.3);
}

.btn-telegram {
  background-color: var(--telegram-bg);
  color: var(--telegram-text);
  box-shadow: 0 4px 14px rgba(34, 158, 217, 0.2);
}

.btn-telegram:hover, .btn-telegram:focus-visible {
  background-color: var(--telegram-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(34, 158, 217, 0.3);
}

.btn-icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  fill: currentColor;
}

.cta-microcopy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Sections Common Structure */
.section {
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--card-border);
  text-align: center;
}

.section-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}

/* 4. Benefits Grid */
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  text-align: left;
}

@media (min-width: 480px) {
  .benefits-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.benefit-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 1rem 0.9rem;
  transition: border-color var(--transition-speed) ease;
}

.benefit-card:hover {
  border-color: var(--accent-border);
}

.benefit-icon-wrapper {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--accent-subtle);
  color: #ff9d42;
  margin-bottom: 0.5rem;
}

.feature-icon {
  width: 18px;
  height: 18px;
}

.benefit-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.25rem;
  line-height: 1.3;
}

.benefit-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.45;
}

/* 5. Problem Identification Card */
.problem-card {
  background: rgba(255, 107, 0, 0.04);
  border: 1px solid rgba(255, 107, 0, 0.18);
  border-left: 3px solid var(--accent-primary);
  border-radius: var(--radius-md);
  padding: 1.15rem;
  text-align: left;
}

.problem-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.4rem;
  line-height: 1.35;
}

.problem-text {
  font-size: 0.85rem;
  color: #cbd5e1;
  line-height: 1.5;
}

/* 6. How it Works (Steps) */
.steps-container {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-align: left;
}

.step-card {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 0.9rem;
}

.step-number {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-primary);
  color: #ffffff;
  font-weight: 800;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-content {
  flex: 1;
}

.step-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.2rem;
}

.step-desc {
  font-size: 0.825rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.section-subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin-top: -0.4rem;
  margin-bottom: 1.15rem;
}

/* 7. How to Make the Best of AZOfertas (Tips) */
.tips-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  text-align: left;
}

@media (min-width: 480px) {
  .tips-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.tip-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 0.95rem 0.85rem;
  transition: border-color var(--transition-speed) ease;
}

.tip-card:hover {
  border-color: var(--accent-border);
}

.tip-header {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 0.35rem;
}

.tip-icon {
  font-size: 1.1rem;
  line-height: 1;
  flex-shrink: 0;
}

.tip-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
  margin: 0;
}

.tip-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin: 0;
}

/* 8. Memorable Concept Card (Coupon Voucher) */
.coupon-voucher {
  background: #192338;
  border: 2px dashed rgba(255, 107, 0, 0.45);
  border-radius: var(--radius-md);
  padding: 1.25rem 1rem;
  text-align: center;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}

.coupon-voucher-tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: #ff9d42;
  background: rgba(255, 107, 0, 0.15);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  margin-bottom: 0.4rem;
}

.coupon-voucher-quote {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

/* 8. Secondary CTA Section */
.secondary-cta-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.35rem;
  line-height: 1.3;
}

.secondary-cta-subtext {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

/* 9. Footer & Privacy */
.landing-footer {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--card-border);
}

.privacy-section {
  text-align: left;
}

.privacy-details summary {
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem 0;
  user-select: none;
}

.privacy-details summary:hover,
.privacy-details summary:focus-visible {
  color: var(--text-main);
}

.privacy-content {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.privacy-content a {
  color: #ff9d42;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.privacy-content a:hover,
.privacy-content a:focus-visible {
  color: #ffaa40;
}

/* Accessibility focus indicator */
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .btn:hover, .btn:focus-visible {
    transform: none;
  }
}