:root {
  --bg: #030712;
  --card-bg: #111827;
  --border: #1F2937;
  --text: #F9FAFB;
  --muted: #9CA3AF;
  --accent: #E50914;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

.top-bar {
  background: #0B0F19;
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
  font-size: 13px;
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.badge-tag {
  background: #374151;
  color: #F3F4F6;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  text-transform: uppercase;
}

.back-link {
  color: #9CA3AF;
  text-decoration: none;
  font-weight: 600;
}

.back-link:hover {
  color: #FFF;
}

.hero-section {
  padding: 70px 0;
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.brand-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 24px;
}

.brand-tag .dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

.hero-title {
  font-family: 'Manrope', sans-serif;
  font-size: 44px;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero-title .highlight {
  color: var(--accent);
}

.hero-subtitle {
  font-size: 17px;
  color: var(--muted);
  max-width: 680px;
  margin: 0 auto 36px;
}

.cta-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  max-width: 440px;
  margin: 0 auto;
}

.price-row {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 12px;
  margin-bottom: 18px;
}

.current-price {
  font-family: 'Manrope', sans-serif;
  font-size: 36px;
  font-weight: 800;
}

.original-price {
  font-size: 16px;
  color: #6B7280;
  text-decoration: line-through;
}

.discount-pill {
  background: rgba(229, 9, 20, 0.15);
  border: 1px solid rgba(229, 9, 20, 0.3);
  color: #F87171;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 6px;
}

.btn-buy {
  width: 100%;
  background: var(--accent);
  color: #FFF;
  border: none;
  border-radius: 10px;
  padding: 16px;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  transition: opacity 0.2s;
}

.btn-buy:hover {
  opacity: 0.9;
}

.trust-list {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 16px;
  font-size: 11px;
  color: var(--muted);
  flex-wrap: wrap;
}

.features-section {
  padding: 70px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 40px;
}

.section-title h2 {
  font-family: 'Manrope', sans-serif;
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 8px;
}

.section-title p {
  color: var(--muted);
  font-size: 14px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}

.icon {
  color: var(--accent);
  font-weight: 800;
  font-size: 14px;
  margin-bottom: 10px;
}

.card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.card p {
  font-size: 13px;
  color: var(--muted);
}

/* Author Section */
.author-section {
  padding: 60px 0;
  border-top: 1px solid var(--border);
  background: #080808;
}

.author-card {
  background: #0E0E0E;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  display: flex;
  align-items: center;
  gap: 28px;
  position: relative;
  overflow: hidden;
}

.author-avatar-wrap {
  flex-shrink: 0;
  width: 100px;
  height: 100px;
  border-radius: 16px;
  overflow: hidden;
  background: #141414;
  border: 2px solid #2B2B2B;
  display: flex;
  align-items: center;
  justify-content: center;
}

.author-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.author-info {
  flex: 1;
}

.author-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(229, 9, 20, 0.1);
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 8px;
}

.author-name {
  font-family: 'Manrope', sans-serif;
  font-size: 20px;
  font-weight: 800;
  color: #FFF;
  margin-bottom: 4px;
}

.author-role {
  font-size: 13px;
  font-weight: 600;
  color: #9CA3AF;
  margin-bottom: 10px;
}

.author-bio {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
  max-width: 650px;
}

@media (max-width: 768px) {
  .author-card {
    flex-direction: column;
    text-align: center;
    padding: 24px 16px;
  }
  .author-avatar-wrap {
    margin: 0 auto;
  }
  .author-bio {
    margin: 0 auto;
  }
}

.footer {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  text-align: center;
  font-size: 12px;
  color: #6B7280;
}

.footer a {
  color: #9CA3AF;
  text-decoration: none;
}