/* Agent Commerce — Design System */
/* Colors injected from product.yaml site.colors */

:root {
  --bg: #0a0a0a;
  --surface: #141414;
  --border: #2a2a2a;
  --text: #f5f5f5;
  --text-muted: #888888;
  --accent: #4ade80;
  --accent-hover: #22c55e;
  --success: #22c55e;
  --danger: #ef4444;

  --font-heading: 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);

  --space-section: 80px;
  --content-max: 1100px;
  --nav-height: 64px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 { font-family: var(--font-heading); line-height: 1.2; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: 1.125rem; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  height: var(--nav-height); padding: 0 24px;
  background: rgba(10,10,10,0.85); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-logo { font-family: var(--font-heading); font-size: 1.25rem; font-weight: 700; color: var(--text) !important; }
.nav-links { display: flex; gap: 20px; list-style: none; }
.nav-links a { color: var(--text-muted); font-size: 0.875rem; transition: color 0.15s; }
.nav-links a:hover { color: var(--text); }
.nav-actions { display: flex; gap: 12px; align-items: center; }
.nav-cart-btn { background: none; border: 1px solid var(--border); color: var(--text); padding: 6px 14px; border-radius: var(--radius-sm); cursor: pointer; font-size: 0.875rem; position: relative; }
.nav-cart-btn:hover { border-color: var(--accent); }
.cart-badge { background: var(--accent); color: var(--bg); border-radius: 99px; padding: 1px 6px; font-size: 0.75rem; font-weight: 700; margin-left: 4px; }

/* Buttons */
.btn-primary, .btn-secondary, .btn-xl, .btn-full {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; font-family: var(--font-heading); font-weight: 600;
  border: none; border-radius: var(--radius); cursor: pointer;
  transition: all 0.15s; text-align: center;
}
.btn-primary { background: var(--accent); color: var(--bg); padding: 12px 28px; font-size: 1rem; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--text); border: 2px solid var(--border); padding: 12px 28px; font-size: 1rem; }
.btn-secondary:hover { border-color: var(--accent); }
.btn-xl { padding: 16px 32px; font-size: 1.125rem; }
.btn-full { width: 100%; }

/* Hero */
.hero { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; padding: 60px 24px; max-width: var(--content-max); margin: 0 auto; min-height: calc(100vh - var(--nav-height) - 40px); }
.hero-content { display: flex; flex-direction: column; gap: 20px; }
.hero-badge { display: inline-block; background: rgba(74,222,128,0.1); color: var(--accent); padding: 4px 12px; border-radius: 99px; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; width: fit-content; }
.hero-title { font-size: clamp(2.5rem, 6vw, 4rem); font-weight: 800; letter-spacing: -0.02em; }
.hero-tagline { font-size: 1.25rem; color: var(--text-muted); }
.hero-rating { display: flex; align-items: center; gap: 8px; font-size: 0.875rem; }
.hero-stars { color: #f59e0b; }
.hero-price { display: flex; align-items: baseline; gap: 12px; }
.hero-price-current { font-size: 2.5rem; font-weight: 800; font-family: var(--font-heading); }
.hero-price-compare { font-size: 1.25rem; color: var(--text-muted); text-decoration: line-through; }
.hero-price-save { background: rgba(239,68,68,0.15); color: var(--danger); padding: 2px 10px; border-radius: 99px; font-size: 0.75rem; font-weight: 600; }
.hero-description { color: var(--text-muted); font-size: 1.0625rem; line-height: 1.7; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-trust { display: flex; gap: 24px; font-size: 0.8125rem; color: var(--text-muted); flex-wrap: wrap; }
.hero-trust-item::before { content: '✓ '; color: var(--accent); }
.hero-visual { position: relative; }
.hero-img { border-radius: var(--radius-lg); width: 100%; }

/* Sections */
.section { padding: var(--space-section) 24px; }
.section-alt { background: var(--surface); }
.section-title { text-align: center; margin-bottom: 48px; font-weight: 700; }
.section-subtitle { text-align: center; color: var(--text-muted); margin-top: -36px; margin-bottom: 48px; }

/* Features Grid */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; max-width: var(--content-max); margin: 0 auto; }
.feature-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 32px; transition: transform 0.2s; }
.feature-card:hover { transform: translateY(-4px); border-color: var(--accent); }
.feature-icon { font-size: 2rem; margin-bottom: 12px; }
.feature-card h3 { margin-bottom: 8px; }
.feature-card p { color: var(--text-muted); font-size: 0.9375rem; }

/* Gallery */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; max-width: var(--content-max); margin: 0 auto; }
.gallery-item { border-radius: var(--radius); overflow: hidden; cursor: pointer; aspect-ratio: 4/3; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s; }
.gallery-item:hover img { transform: scale(1.05); }

/* Lightbox */
.lightbox { display: none; position: fixed; inset: 0; z-index: 999; background: rgba(0,0,0,0.92); align-items: center; justify-content: center; }
.lightbox.show { display: flex; }
.lightbox-img { max-width: 90vw; max-height: 85vh; border-radius: var(--radius-lg); }
.lightbox-close { position: absolute; top: 24px; right: 24px; background: none; border: none; color: var(--text); font-size: 2rem; cursor: pointer; }
.lightbox-prev, .lightbox-next { position: absolute; top: 50%; transform: translateY(-50%); background: rgba(255,255,255,0.1); border: none; color: var(--text); font-size: 2rem; padding: 8px 16px; cursor: pointer; border-radius: var(--radius-sm); }
.lightbox-prev { left: 24px; }
.lightbox-next { right: 24px; }
.lightbox-caption { position: absolute; bottom: 24px; color: var(--text-muted); font-size: 0.875rem; }
.lightbox-fade { animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* Specs */
.specs-group { max-width: 700px; margin: 0 auto 40px; }
.specs-category { font-size: 1rem; font-weight: 600; margin-bottom: 12px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.specs-table { width: 100%; border-collapse: collapse; }
.specs-table tr { border-bottom: 1px solid rgba(42,42,42,0.5); }
.specs-label { padding: 10px 16px; color: var(--text-muted); font-size: 0.875rem; width: 40%; }
.specs-value { padding: 10px 16px; font-weight: 500; }

/* Comparison */
.comparison-table-wrap { max-width: var(--content-max); margin: 0 auto; overflow-x: auto; }
.comparison-table { width: 100%; border-collapse: collapse; font-size: 0.9375rem; }
.comparison-table th, .comparison-table td { padding: 14px 20px; text-align: left; border-bottom: 1px solid var(--border); }
.comparison-table th { font-weight: 600; color: var(--text-muted); font-size: 0.8125rem; text-transform: uppercase; letter-spacing: 0.05em; }
.col-us { background: rgba(74,222,128,0.05); font-weight: 600; }
.highlight { color: var(--accent); }
.comparison-verdict { max-width: var(--content-max); margin: 16px auto 0; padding: 12px 20px; background: rgba(74,222,128,0.08); border-radius: var(--radius-sm); color: var(--accent); font-size: 0.875rem; }

/* Testimonials */
.testimonials-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: var(--content-max); margin: 0 auto; }
.testimonial-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.testimonial-stars { color: #f59e0b; margin-bottom: 12px; }
.testimonial-text { font-style: italic; margin-bottom: 16px; line-height: 1.7; }
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--accent); color: var(--bg); display: flex; align-items: center; justify-content: center; font-weight: 700; }
.testimonial-name { font-weight: 600; font-size: 0.9375rem; }
.testimonial-role { color: var(--text-muted); font-size: 0.8125rem; }
.testimonial-verified { font-size: 0.75rem; color: var(--accent); }

/* Content Seeding */
.content-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: var(--content-max); margin: 0 auto 48px; }
.content-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: transform 0.2s; }
.content-card:hover { transform: translateY(-4px); }
.content-card-body { padding: 24px; }
.content-card-date { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 8px; }
.content-card h3 { font-size: 1rem; margin-bottom: 8px; }
.content-card p { color: var(--text-muted); font-size: 0.875rem; }
.social-stats { display: flex; justify-content: center; gap: 48px; max-width: var(--content-max); margin: 0 auto 32px; flex-wrap: wrap; text-align: center; }
.social-stat-number { font-size: 2rem; font-weight: 800; font-family: var(--font-heading); color: var(--accent); }
.social-stat-label { font-size: 0.8125rem; color: var(--text-muted); }
.social-share { display: flex; justify-content: center; gap: 16px; margin-bottom: 32px; }
.social-share-btn { background: var(--surface); border: 1px solid var(--border); color: var(--text); padding: 8px 20px; border-radius: 99px; font-size: 0.875rem; cursor: pointer; transition: border-color 0.15s; }
.social-share-btn:hover { border-color: var(--accent); }
.newsletter { max-width: 480px; margin: 0 auto; text-align: center; }
.newsletter h3 { margin-bottom: 8px; }
.newsletter p { color: var(--text-muted); font-size: 0.875rem; margin-bottom: 16px; }
.newsletter-form { display: flex; gap: 8px; }
.newsletter-input { flex: 1; padding: 12px 16px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); font-family: var(--font-body); font-size: 0.9375rem; }
.newsletter-input:focus { outline: none; border-color: var(--accent); }
.newsletter-status { font-size: 0.8125rem; margin-top: 8px; min-height: 20px; }

/* FAQ */
.faq-list { max-width: 700px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-q { width: 100%; background: none; border: none; color: var(--text); font-family: var(--font-heading); font-size: 1.0625rem; font-weight: 600; text-align: left; padding: 20px 0; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.faq-q::after { content: '+'; font-size: 1.5rem; font-weight: 300; color: var(--text-muted); transition: transform 0.2s; }
.faq-item.open .faq-q::after { content: '−'; transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease; color: var(--text-muted); line-height: 1.7; }
.faq-item.open .faq-a { max-height: 500px; padding-bottom: 20px; }

/* Buy Section */
.buy-section { max-width: 500px; margin: 0 auto; }
.buy-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 40px; }
.buy-price-area { text-align: center; margin-bottom: 24px; }
.buy-price { font-size: 3rem; font-weight: 800; font-family: var(--font-heading); color: var(--accent); }
.buy-compare { font-size: 1.25rem; color: var(--text-muted); text-decoration: line-through; }
.buy-save-badge { display: inline-block; background: rgba(239,68,68,0.15); color: var(--danger); padding: 4px 12px; border-radius: 99px; font-size: 0.8125rem; font-weight: 600; margin-top: 4px; }
.buy-shipping { color: var(--success); font-size: 0.875rem; margin-top: 4px; }
.buy-variants, .buy-qty { margin-bottom: 16px; }
.buy-variants label, .buy-qty label { display: block; font-size: 0.8125rem; color: var(--text-muted); margin-bottom: 6px; }
.variant-select { width: 100%; padding: 10px 14px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); font-family: var(--font-body); font-size: 0.9375rem; }
.qty-selector { display: flex; align-items: center; gap: 0; width: fit-content; border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.qty-selector button { background: var(--surface); border: none; color: var(--text); width: 40px; height: 40px; font-size: 1.25rem; cursor: pointer; }
.qty-selector button:hover { background: var(--border); }
.qty-selector input { width: 50px; text-align: center; border: none; background: var(--bg); color: var(--text); font-size: 1rem; font-weight: 600; }
.buy-total { text-align: center; font-size: 1.25rem; font-weight: 600; margin-bottom: 20px; }
.buy-actions { display: flex; flex-direction: column; gap: 12px; }
.buy-trust { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-top: 20px; }
.buy-trust-item { font-size: 0.75rem; color: var(--text-muted); text-align: center; }
.buy-trust-item::before { content: '✓ '; color: var(--accent); }

/* Trust */
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; max-width: var(--content-max); margin: 0 auto 32px; }
.trust-card { text-align: center; padding: 24px 16px; }
.trust-card-icon { font-size: 2rem; margin-bottom: 8px; }
.trust-card h4 { font-size: 0.875rem; }
.cert-grid { display: flex; justify-content: center; gap: 24px; flex-wrap: wrap; }
.cert-badge { background: var(--surface); border: 1px solid var(--border); padding: 8px 16px; border-radius: 99px; font-size: 0.8125rem; }

/* Checkout */
.checkout-page { max-width: var(--content-max); margin: 0 auto; padding: 40px 24px; }
.checkout-page h1 { margin-bottom: 32px; }
.checkout-grid { display: grid; grid-template-columns: 1fr 380px; gap: 40px; align-items: start; }
.checkout-form-section h2 { margin-bottom: 20px; font-size: 1.25rem; }
.checkout-form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.8125rem; color: var(--text-muted); font-weight: 500; }
.form-group input, .form-group select { padding: 12px 14px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); font-family: var(--font-body); font-size: 0.9375rem; }
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--accent); }

/* Payment Selector */
.payment-options { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.payment-option { display: flex; align-items: center; gap: 12px; padding: 14px 16px; background: var(--surface); border: 2px solid var(--border); border-radius: var(--radius); cursor: pointer; transition: border-color 0.15s; }
.payment-option:hover { border-color: var(--accent); }
.payment-option input[type="radio"] { accent-color: var(--accent); }
.payment-option.selected { border-color: var(--accent); background: rgba(74,222,128,0.05); }
.payment-option-name { font-weight: 600; }
.payment-option-desc { font-size: 0.8125rem; color: var(--text-muted); }
.payment-option-badge { font-size: 0.6875rem; background: var(--accent); color: var(--bg); padding: 2px 6px; border-radius: 4px; margin-left: auto; }
.gateway-form { display: none; margin-bottom: 20px; }
.gateway-form .form-row { margin-bottom: 12px; }

/* Checkout Summary */
.checkout-summary { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; position: sticky; top: calc(var(--nav-height) + 24px); }
.checkout-summary h2 { font-size: 1.125rem; margin-bottom: 16px; }
.checkout-item { display: flex; justify-content: space-between; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 0.9375rem; }
.checkout-totals { margin-top: 16px; }
.checkout-line { display: flex; justify-content: space-between; padding: 6px 0; font-size: 0.9375rem; }
.checkout-total { font-weight: 700; font-size: 1.125rem; border-top: 1px solid var(--border); padding-top: 12px; margin-top: 6px; }
.checkout-secure { text-align: center; color: var(--text-muted); font-size: 0.8125rem; margin-top: 12px; }

/* Thank You */
.thank-you-page { display: flex; align-items: center; justify-content: center; min-height: 70vh; padding: 40px 24px; }
.thank-you-box { text-align: center; max-width: 480px; }
.thank-you-icon { font-size: 4rem; margin-bottom: 16px; }
.thank-you-box h1 { margin-bottom: 12px; }
.thank-you-box p { color: var(--text-muted); margin-bottom: 24px; }
.thank-you-details { margin-bottom: 24px; }
.thank-you-details div { margin-bottom: 6px; font-size: 0.9375rem; }

/* Legal */
.legal-page { max-width: 700px; margin: 0 auto; padding: 60px 24px; }
.legal-page h1 { margin-bottom: 8px; }
.legal-page h2 { font-size: 1.25rem; margin-top: 32px; margin-bottom: 12px; }
.legal-page p { color: var(--text-muted); line-height: 1.8; }

/* Cart Sidebar */
.cart-overlay { display: none; position: fixed; inset: 0; z-index: 200; background: rgba(0,0,0,0.6); }
.cart-overlay.show { display: block; }
.cart-sidebar { position: fixed; top: 0; right: 0; z-index: 201; width: 380px; height: 100vh; background: var(--surface); border-left: 1px solid var(--border); display: flex; flex-direction: column; transform: translateX(100%); transition: transform 0.3s ease; }
.cart-sidebar.show { transform: translateX(0); }
.cart-header { display: flex; justify-content: space-between; align-items: center; padding: 20px 24px; border-bottom: 1px solid var(--border); }
.cart-header h3 { font-size: 1.125rem; }
#cart-close { background: none; border: none; color: var(--text-muted); font-size: 1.5rem; cursor: pointer; }
.cart-items { flex: 1; overflow-y: auto; padding: 16px 24px; }
.cart-item { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--border); }
.cart-item-remove { background: none; border: none; color: var(--danger); font-size: 1.25rem; cursor: pointer; padding: 0 4px; }
.cart-footer { padding: 20px 24px; border-top: 1px solid var(--border); }
.cart-total { font-size: 1.125rem; font-weight: 700; margin-bottom: 12px; }
.cart-shipping-estimate { font-size: 0.8125rem; color: var(--text-muted); margin-bottom: 16px; }

/* Toast */
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(100px); z-index: 999; background: var(--surface); border: 1px solid var(--accent); color: var(--text); padding: 12px 24px; border-radius: 99px; font-size: 0.875rem; font-weight: 500; transition: transform 0.3s ease; pointer-events: none; }
.toast.show { transform: translateX(-50%) translateY(0); }

/* Footer */
.footer { background: var(--surface); border-top: 1px solid var(--border); padding: 48px 24px 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; max-width: var(--content-max); margin: 0 auto 32px; }
.footer-brand h3 { margin-bottom: 8px; }
.footer-brand p { color: var(--text-muted); font-size: 0.875rem; }
.footer-col h4 { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 12px; }
.footer-col a { display: block; color: var(--text-muted); font-size: 0.875rem; padding: 4px 0; }
.footer-col a:hover { color: var(--text); }
.footer-bottom { text-align: center; color: var(--text-muted); font-size: 0.8125rem; padding-top: 24px; border-top: 1px solid var(--border); max-width: var(--content-max); margin: 0 auto; }

/* Responsive */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .hero-badge, .hero-rating, .hero-price, .hero-actions, .hero-trust { justify-content: center; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: 1fr; }
  .content-grid { grid-template-columns: 1fr; }
  .checkout-grid { grid-template-columns: 1fr; }
  .checkout-summary { position: static; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav { padding: 0 16px; }
  .nav-links { display: none; }
  .hero { padding: 40px 16px; min-height: auto; }
  .hero-actions { flex-direction: column; }
  .features-grid { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .buy-card { padding: 24px; }
  .cart-sidebar { width: 100%; }
  .form-row { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .social-stats { gap: 24px; }
  .footer-grid { grid-template-columns: 1fr; }
}