/* CartEngine Global Styles */
/* Mobile-first, minimal, clean design */

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

:root {
  --color-text-primary: #1f2937;
  --color-text-secondary: #6b7280;
  --color-text-muted: #9ca3af;
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f9fafb;
  --color-bg-tertiary: #f3f4f6;
  --color-border: #e5e7eb;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --max-width: 720px;
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  font-size: 16px;
}

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

.container-wide {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

/* Header */
.site-header {
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-primary);
}

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

.site-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.site-logo img {
  height: 40px;
  width: auto;
  display: block;
}

.site-nav {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.site-nav a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

/* Footer */
.site-footer {
  margin-top: var(--spacing-xl);
  padding: var(--spacing-lg) 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
}

.site-footer .container {
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--color-text-primary);
  text-decoration: underline;
}

.footer-copyright {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 2rem;
  font-weight: 700;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.25rem;
}

h4 {
  font-size: 1.1rem;
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

ul, ol {
  margin-bottom: var(--spacing-sm);
  padding-left: var(--spacing-md);
}

li {
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

strong {
  font-weight: 600;
  color: var(--color-text-primary);
}

code {
  font-family: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, monospace;
  font-size: 0.9em;
  background: var(--color-bg-tertiary);
  padding: 2px 6px;
  border-radius: 3px;
}

/* Sections */
section {
  padding: var(--spacing-lg) 0;
}

.section-title {
  margin-bottom: var(--spacing-md);
}

/* Hero */
.hero {
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.hero video {
  max-width: 400px;
  width: 100%;
  height: auto;
  margin: 0 auto var(--spacing-md);
  display: block;
  border-radius: 8px;
}

.hero h1 {
  font-size: 2.25rem;
  margin-bottom: var(--spacing-sm);
}

.hero p {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-md);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  text-decoration: none;
  transition: all 0.2s;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--color-accent);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  text-decoration: none;
}

.btn-secondary {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-border);
  text-decoration: none;
}

.btn-large {
  padding: 16px 32px;
  font-size: 1.1rem;
}

.btn-block {
  display: block;
  width: 100%;
}

/* Cards */
.card {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.card-list {
  display: grid;
  gap: var(--spacing-md);
}

/* Badge/Label */
.label {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-bg-tertiary);
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.label-success {
  background: #d1fae5;
  color: #065f46;
}

.label-warning {
  background: #fef3c7;
  color: #92400e;
}

/* Product Grid */
.product-grid {
  display: grid;
  gap: var(--spacing-md);
  margin: var(--spacing-md) 0;
}

.product-item {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--spacing-md);
  transition: all 0.2s;
}

.product-item:hover {
  border-color: var(--color-accent);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
}

.product-item h3 {
  margin-bottom: var(--spacing-xs);
}

.product-item p {
  font-size: 0.95rem;
  margin-bottom: var(--spacing-sm);
}

.product-status {
  display: inline-block;
  margin-bottom: var(--spacing-sm);
}

/* Feature List */
.feature-list {
  list-style: none;
  padding: 0;
}

.feature-list li {
  padding-left: 24px;
  position: relative;
  margin-bottom: var(--spacing-sm);
}

.feature-list li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
}

/* FAQ */
.faq-item {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

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

.faq-question {
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.faq-answer {
  color: var(--color-text-secondary);
}

/* Pricing */
.pricing-box {
  background: var(--color-bg-secondary);
  border: 2px solid var(--color-border);
  border-radius: 8px;
  padding: var(--spacing-lg);
  text-align: center;
  margin: var(--spacing-md) 0;
}

.price {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin: var(--spacing-sm) 0;
}

.price-note {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

/* Compatibility Table */
.compatibility-section {
  margin: var(--spacing-md) 0;
}

.compatibility-list {
  list-style: none;
  padding: 0;
}

.compatibility-list li {
  padding: var(--spacing-xs) 0;
  border-bottom: 1px solid var(--color-border);
}

.compatibility-list li:last-child {
  border-bottom: none;
}

/* Notice/Alert */
.notice {
  padding: var(--spacing-sm);
  border-radius: 6px;
  margin: var(--spacing-md) 0;
  border-left: 4px solid;
}

.notice-info {
  background: #eff6ff;
  border-color: var(--color-accent);
  color: #1e40af;
}

.notice-warning {
  background: #fffbeb;
  border-color: var(--color-warning);
  color: #92400e;
}

/* Responsive */
@media (min-width: 640px) {
  h1 {
    font-size: 2.5rem;
  }
  
  .hero h1 {
    font-size: 3rem;
  }
  
  .product-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
  
  .site-nav {
    gap: var(--spacing-lg);
  }
}

@media (max-width: 639px) {
  .site-header .container {
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: flex-start;
  }
  
  .site-nav {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }
  
  .site-logo img {
    height: 32px;
  }
  
  .hero video {
    max-width: 300px;
  }
}

/* Mobile logo adjustment */
@media (max-width: 639px) {
  .site-logo img {
    height: 32px;
  }
}