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

:root {
  --primary-color: #2563eb;
  --primary-dark: #1e40af;
  --secondary-color: #64748b;
  --accent-color: #0ea5e9;
  --success-color: #10b981;
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --text-dark: #0f172a;
  --text-gray: #475569;
  --border-color: #e2e8f0;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-white);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.header {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

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

.logo h1 {
  font-size: 1.75rem;
  color: var(--primary-color);
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.tagline {
  font-size: 0.875rem;
  color: var(--text-gray);
  font-weight: 400;
}

.nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav a {
  color: var(--text-dark);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
  font-size: 0.95rem;
}

.nav a:hover {
  color: var(--primary-color);
}

/* Cart Icon */
.cart-icon {
  position: relative;
  cursor: pointer;
  font-size: 1.5rem;
  color: var(--text-dark);
  transition: color 0.3s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.cart-icon:hover {
  color: var(--primary-color);
}

#cart-badge {
  position: absolute;
  top: -8px;
  right: -8px;
  background: var(--primary-color);
  color: white;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  display: flex !important;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s, visibility 0.2s;
}

#cart-badge[style*="display: block"] {
  opacity: 1;
  visibility: visible;
}

/* Cart Sidebar */
.cart-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.cart-overlay.open {
  opacity: 1;
  visibility: visible;
}

.cart-sidebar {
  position: fixed;
  top: 0;
  right: -450px;
  width: 450px;
  max-width: 100%;
  height: 100%;
  background: white;
  z-index: 999;
  box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
  transition: right 0.3s ease;
  display: flex;
  flex-direction: column;
}

.cart-sidebar.open {
  right: 0;
}

.cart-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cart-header h2 {
  font-size: 1.5rem;
  color: var(--text-dark);
}

.cart-close {
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--text-gray);
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.3s;
}

.cart-close:hover {
  color: var(--text-dark);
}

.cart-body {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
}

.cart-empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-gray);
}

.cart-empty-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
  opacity: 0.3;
}

#cart-items {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.cart-item {
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: center;
}

.cart-item-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.cart-item-name {
  font-weight: 600;
  color: var(--text-dark);
  font-size: 0.95rem;
}

.cart-item-badge {
  font-size: 0.75rem;
  color: var(--text-gray);
  background: var(--bg-light);
  padding: 0.25rem 0.5rem;
  border-radius: 5px;
  display: inline-block;
  width: fit-content;
}

.cart-item-price {
  color: var(--primary-color);
  font-weight: 600;
  font-size: 0.9rem;
}

.cart-item-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.quantity-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.25rem;
}

.qty-btn {
  background: none;
  border: none;
  color: var(--primary-color);
  font-size: 1.25rem;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.3s;
  border-radius: 5px;
  font-weight: 600;
}

.qty-btn:hover {
  background: var(--bg-light);
}

.quantity {
  min-width: 30px;
  text-align: center;
  font-weight: 600;
  color: var(--text-dark);
}

.remove-btn {
  background: none;
  border: none;
  color: #ef4444;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s;
  font-weight: 300;
}

.remove-btn:hover {
  opacity: 0.7;
}

.cart-item-total {
  grid-column: 1 / -1;
  text-align: right;
  font-weight: 700;
  color: var(--text-dark);
  font-size: 1.1rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-color);
}

.cart-footer {
  padding: 1.5rem;
  border-top: 2px solid var(--border-color);
  background: var(--bg-light);
  display: none;
  flex-direction: column;
  gap: 1rem;
}

.cart-subtotal {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-dark);
}

.cart-checkout-btn {
  width: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  padding: 1rem;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
}

.cart-checkout-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

/* Cart Notification */
.cart-notification {
  position: fixed;
  top: 100px;
  right: 20px;
  background: white;
  padding: 1rem 1.5rem;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 1rem;
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.cart-notification.fade-out {
  animation: slideOut 0.3s ease forwards;
}

@keyframes slideOut {
  to {
    transform: translateX(400px);
    opacity: 0;
  }
}

.cart-notification span {
  color: var(--text-dark);
  font-weight: 500;
}

.cart-notification button {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 5px;
  cursor: pointer;
  font-weight: 500;
  transition: background 0.3s;
  white-space: nowrap;
}

.cart-notification button:hover {
  background: var(--primary-dark);
}

/* Checkout Page Styles */
.checkout-section {
  padding: 4rem 0;
  background: var(--bg-light);
  min-height: 100vh;
}

.checkout-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 2rem;
  margin-top: 2rem;
}

.order-summary-section {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: var(--shadow-md);
  height: fit-content;
  position: sticky;
  top: 100px;
}

.order-summary-section h2 {
  margin-bottom: 1.5rem;
  color: var(--text-dark);
  font-size: 1.5rem;
}

.summary-item {
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
  align-items: center;
}

.summary-item:last-child {
  border-bottom: none;
}

.summary-item-info {
  grid-column: 1 / -1;
}

.summary-item-name {
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 0.25rem;
}

.summary-item-badge {
  font-size: 0.75rem;
  color: var(--text-gray);
  background: var(--bg-light);
  padding: 0.25rem 0.5rem;
  border-radius: 5px;
  display: inline-block;
  width: fit-content;
}

.summary-item-quantity {
  color: var(--text-gray);
  font-size: 0.9rem;
}

.summary-item-price {
  font-weight: 600;
  color: var(--primary-color);
  font-size: 1.1rem;
}

.order-totals {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 2px solid var(--border-color);
}

.total-row {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  font-size: 1rem;
}

.total-row.total {
  font-size: 1.25rem;
  color: var(--text-dark);
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  margin-top: 0.5rem;
}

.checkout-form-section {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: var(--shadow-md);
}

.checkout-form-section h2 {
  margin-bottom: 1.5rem;
  color: var(--text-dark);
  font-size: 1.5rem;
}

@media (max-width: 968px) {
  .checkout-grid {
    grid-template-columns: 1fr;
  }

  .order-summary-section {
    position: static;
    order: 2;
  }

  .checkout-form-section {
    order: 1;
  }
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.hero-video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%);
  object-fit: cover;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(102, 126, 234, 0.85) 0%,
    rgba(118, 75, 162, 0.85) 100%
  );
  z-index: 1;
}

.hero::before {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  top: -200px;
  right: -200px;
  animation: float 6s ease-in-out infinite;
  z-index: 2;
}

.hero::after {
  content: "";
  position: absolute;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  bottom: -100px;
  left: -100px;
  animation: float 8s ease-in-out infinite;
  z-index: 2;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(5deg);
  }
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 1200px;
  animation: fadeInUp 1s ease;
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  letter-spacing: -1px;
  color: white;
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  opacity: 0.95;
  animation: fadeInUp 1s ease 0.2s both;
}

.hero-description {
  font-size: 1.1rem;
  margin-bottom: 3rem;
  opacity: 0.9;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
  animation: fadeInUp 1s ease 0.4s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.cta-button {
  background: white;
  color: #667eea;
  border: none;
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  animation: fadeInUp 1s ease 0.6s both;
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  background: rgba(255, 255, 255, 0.95);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.875rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: white;
  color: var(--primary-color);
  border: 2px solid white;
}

.btn-secondary:hover {
  background: transparent;
  color: white;
}

.btn-large {
  padding: 1.125rem 2.5rem;
  font-size: 1.125rem;
  width: 100%;
}

.btn-link {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
}

.btn-link:hover {
  text-decoration: underline;
}

/* Sections */
.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.section-subtitle {
  text-align: center;
  font-size: 1.125rem;
  color: var(--text-gray);
  margin-bottom: 3rem;
}

/* Products Section */
.products {
  padding: 5rem 0;
  background: var(--bg-light);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.product-card {
  background: linear-gradient(145deg, #ffffff 0%, #f7fafc 100%);
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.product-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #667eea, #764ba2);
  transform: scaleX(0);
  transition: transform 0.4s ease;
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(102, 126, 234, 0.3);
}

.product-card:hover::before {
  transform: scaleX(1);
}

.product-card.featured {
  border: 2px solid var(--primary-color);
  background: linear-gradient(145deg, #f8f9ff 0%, #eef2ff 100%);
}

.device-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 2rem;
  box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.product-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--secondary-color);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
}

.product-badge.popular {
  background: var(--success-color);
}

.product-image {
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 200px;
  overflow: hidden;
  border-radius: 8px;
  background: var(--bg-light);
}

.product-image img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.product-placeholder {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  height: 200px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  color: white;
}

.product-placeholder.large {
  height: 400px;
  font-size: 3rem;
}

.product-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--text-dark);
}

.product-description {
  color: var(--text-gray);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.product-features {
  list-style: none;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.product-features li {
  padding: 0.5rem 0;
  color: var(--text-gray);
  font-size: 0.95rem;
}

.promo-banner {
  background: linear-gradient(135deg, #ffd700 0%, #ffed4e 100%);
  color: #333;
  padding: 1rem;
  border-radius: 10px;
  text-align: center;
  margin-bottom: 1rem;
  font-size: 0.95rem;
  box-shadow: 0 4px 12px rgba(255, 215, 0, 0.3);
  border: 2px solid #ffc107;
}

.promo-banner strong {
  color: #d97706;
  font-weight: 700;
}

.promo-banner small {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.8rem;
  opacity: 0.8;
  font-style: italic;
}

.product-price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1.5rem;
  margin-top: auto;
}

.product-price.large {
  font-size: 2.5rem;
}

/* Sentrago Section */
.sentrago-section {
  padding: 5rem 0;
  background: var(--bg-white);
}

.sentrago-content {
  max-width: 900px;
  margin: 0 auto;
}

.sentrago-text h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-dark);
}

.large-text {
  font-size: 1.25rem;
  line-height: 1.8;
  color: var(--text-gray);
  margin-bottom: 2rem;
}

.info-box {
  background: #fef3c7;
  border-left: 4px solid #f59e0b;
  padding: 1.5rem;
  border-radius: 8px;
  margin: 2rem 0;
}

.info-box h3 {
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.info-list {
  list-style: none;
  margin-left: 0;
}

.info-list li {
  padding: 0.5rem 0;
  color: var(--text-dark);
}

.benefits-list {
  list-style: none;
  margin: 1.5rem 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 0.75rem;
}

.benefits-list li {
  padding: 0.5rem;
  color: var(--text-gray);
}

.cta-buttons {
  display: flex;
  gap: 1rem;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

/* How It Works */
.how-it-works {
  padding: 5rem 0;
  background: var(--bg-light);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.step-card {
  background: var(--bg-white);
  padding: 2rem;
  border-radius: 12px;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.step-number {
  width: 60px;
  height: 60px;
  background: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 auto 1.5rem;
}

.step-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.step-card p {
  color: var(--text-gray);
  line-height: 1.6;
}

/* Contact Section */
.contact {
  padding: 5rem 0;
  background: var(--bg-white);
}

.contact-content {
  max-width: 800px;
  margin: 0 auto;
}

.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}

.contact-item {
  text-align: center;
  padding: 2rem;
  background: var(--bg-light);
  border-radius: 12px;
}

.contact-item h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.contact-item a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
}

.contact-item a:hover {
  text-decoration: underline;
}

/* Footer */
.footer {
  background: var(--text-dark);
  color: white;
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.footer-section p {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.3s;
}

.footer-section a:hover {
  color: white;
}

.partner-link {
  color: var(--accent-color) !important;
  font-weight: 600;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

/* Product Detail Page */
.product-detail {
  padding: 3rem 0;
  background: var(--bg-light);
  min-height: 100vh;
}

.back-link {
  display: inline-block;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
  margin-bottom: 2rem;
}

.back-link:hover {
  text-decoration: underline;
}

.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  background: var(--bg-white);
  padding: 3rem;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  margin-bottom: 3rem;
}

.product-detail-image {
  position: sticky;
  top: 100px;
  height: fit-content;
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--bg-light);
  border-radius: 12px;
  padding: 2rem;
  min-height: 400px;
}

.product-image-full {
  max-width: 100%;
  max-height: 500px;
  object-fit: contain;
  border-radius: 8px;
}

.product-detail-info h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  margin-top: 0.5rem;
}

.product-description-long {
  font-size: 1.125rem;
  color: var(--text-gray);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.product-features-section,
.product-specs {
  margin: 2rem 0;
}

.product-features-section h3,
.product-specs h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.product-features-detailed {
  list-style: none;
}

.product-features-detailed li {
  padding: 0.75rem 0;
  color: var(--text-gray);
  border-bottom: 1px solid var(--border-color);
}

.product-features-detailed li:last-child {
  border-bottom: none;
}

.product-specs ul {
  list-style: none;
}

.product-specs ul li {
  padding: 0.5rem 0;
  color: var(--text-gray);
}

.sentrago-notice {
  background: #fef3c7;
  border-left: 4px solid #f59e0b;
  padding: 1.5rem;
  border-radius: 8px;
  margin: 2rem 0;
}

.sentrago-notice h4 {
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.sentrago-notice ul {
  list-style: none;
  margin-bottom: 1rem;
}

.sentrago-notice ul li {
  padding: 0.25rem 0;
  color: var(--text-dark);
}

/* Checkout Form */
.checkout-form {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  overflow-y: auto;
}

.checkout-form.hidden {
  display: none;
}

.checkout-container {
  background: var(--bg-white);
  border-radius: 12px;
  max-width: 700px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
}

.checkout-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem;
  border-bottom: 1px solid var(--border-color);
}

.checkout-header h2 {
  font-size: 1.75rem;
  color: var(--text-dark);
}

.close-btn {
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--text-gray);
  cursor: pointer;
  line-height: 1;
}

.close-btn:hover {
  color: var(--text-dark);
}

#payment-form {
  padding: 2rem;
}

.order-summary {
  background: var(--bg-light);
  padding: 1.5rem;
  border-radius: 8px;
  margin-bottom: 2rem;
}

.order-summary h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.order-item {
  display: flex;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border-color);
}

.order-total {
  display: flex;
  justify-content: space-between;
  padding: 1rem 0 0;
  font-size: 1.25rem;
}

.form-section {
  margin-bottom: 2rem;
}

.form-section h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-dark);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

.checkbox-group label {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-weight: 400;
}

.checkbox-group input[type="checkbox"] {
  margin-top: 0.25rem;
  width: auto;
}

.checkbox-group a {
  color: var(--primary-color);
}

.error-message {
  background: #fee2e2;
  color: #991b1b;
  padding: 1rem;
  border-radius: 8px;
  margin-top: 1rem;
}

.error-message.hidden {
  display: none;
}

/* Additional Info */
.additional-info {
  margin-top: 3rem;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.info-card {
  background: var(--bg-white);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
}

.info-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-dark);
}

.info-card p {
  color: var(--text-gray);
  line-height: 1.6;
}

/* Success Page */
.success-section {
  padding: 5rem 0;
  text-align: center;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.success-content {
  max-width: 600px;
}

.success-icon {
  width: 100px;
  height: 100px;
  background: var(--success-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem;
  font-size: 3rem;
}

.success-content h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.success-content p {
  font-size: 1.125rem;
  color: var(--text-gray);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.order-details {
  background: var(--bg-light);
  padding: 2rem;
  border-radius: 12px;
  margin: 2rem 0;
  text-align: left;
}

.order-details h3 {
  margin-bottom: 1rem;
}

.order-details p {
  margin-bottom: 0.5rem;
}

.next-steps {
  background: var(--bg-light);
  padding: 2rem;
  border-radius: 12px;
  margin: 2rem 0;
  text-align: left;
}

.next-steps h3 {
  margin-bottom: 1rem;
}

.next-steps ol {
  margin-left: 1.5rem;
}

.next-steps li {
  margin-bottom: 0.75rem;
  color: var(--text-gray);
  line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero-content h2 {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.25rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .nav {
    flex-direction: column;
    gap: 0.5rem;
  }

  .product-detail-grid {
    grid-template-columns: 1fr;
    padding: 1.5rem;
  }

  .product-detail-image {
    position: static;
  }

  .products-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .checkout-form {
    padding: 1rem;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .cta-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }
}

/* Additional Styles for New Design */
.product-tagline {
  font-size: 0.95rem;
  color: var(--primary-color);
  font-weight: 600;
  margin-bottom: 1rem;
  display: block;
}

.device-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 2rem;
  box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.info-banner {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 2.5rem;
  border-radius: 20px;
  text-align: center;
  margin: 3rem auto 0;
  max-width: 900px;
  box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.info-banner h3 {
  margin-bottom: 1rem;
  font-size: 1.75rem;
  font-weight: 700;
}

.info-banner p {
  font-size: 1.125rem;
  line-height: 1.6;
  opacity: 0.95;
}