:root {
  color-scheme: light;
  /* Colors */
  --ui-bg-page: #f9fafb; /* gray-50 */
  --ui-bg-solid: #ffffff;
  --ui-bg-soft: #f3f4f6; /* gray-100 */
  --ui-bg-muted: #e5e7eb; /* gray-200 */
  
  --ui-text-primary: #111827; /* gray-900 */
  --ui-text-secondary: #4b5563; /* gray-600 */
  --ui-text-muted: #9ca3af; /* gray-400 */
  --ui-text-on-accent: #ffffff;
  
  --ui-border: #e5e7eb; /* gray-200 */
  --ui-border-strong: #d1d5db; /* gray-300 */
  
  --ui-accent: #3b82f6; /* blue-500 */
  --ui-accent-hover: #2563eb; /* blue-600 */
  --ui-accent-soft: #eff6ff; /* blue-50 */
  
  --ui-success: #10b981;
  --ui-warning: #f59e0b;
  --ui-danger: #ef4444;
  
  /* Radii - clean and moderate */
  --ui-radius-sm: 8px;
  --ui-radius-md: 12px;
  --ui-radius-lg: 16px;
  --ui-radius-full: 9999px;
  
  --ui-max-width: 1024px;
}

html.dark {
  color-scheme: dark;
  --ui-bg-page: #030712; /* neutral-950 */
  --ui-bg-solid: #0a0a0a; /* neutral-950/darker */
  --ui-bg-soft: #171717; /* neutral-900 */
  --ui-bg-muted: #262626; /* neutral-800 */
  
  --ui-text-primary: #f9fafb; /* gray-50 */
  --ui-text-secondary: #a1a1aa; /* neutral-400 */
  --ui-text-muted: #52525b; /* neutral-500 */
  
  --ui-border: #262626; /* neutral-800 */
  --ui-border-strong: #404040; /* neutral-700 */
  
  --ui-accent: #3b82f6;
  --ui-accent-hover: #60a5fa;
  --ui-accent-soft: rgba(59, 130, 246, 0.1);
}

/* Global Reset & Body */
* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
}

body.storefront-body {
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ui-text-primary);
  background-color: var(--ui-bg-page);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease;
}

button, input, textarea, select {
  font: inherit;
  margin: 0;
}

.site-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(249, 250, 251, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--ui-border);
}

html.dark .site-header {
  background-color: rgba(3, 7, 18, 0.8);
}

.site-header-inner, .site-footer-inner, .page-section, .hero-grid, .section-header, .showcase-strip, .content-grid {
  width: min(calc(100% - 32px), var(--ui-max-width));
  margin: 0 auto;
}

.site-header-inner {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: var(--ui-radius-sm);
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--ui-bg-soft);
  border: 1px solid var(--ui-border);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-copy {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1rem;
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--ui-text-muted);
}

/* Navigation */
.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link, .theme-toggle {
  background: transparent;
  color: var(--ui-text-secondary);
  border-radius: var(--ui-radius-sm);
  padding: 6px 12px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.15s ease;
  border: none;
  cursor: pointer;
}

.nav-link:hover, .theme-toggle:hover {
  color: var(--ui-text-primary);
  background-color: var(--ui-bg-soft);
}

.nav-link.is-active {
  color: var(--ui-accent);
  background-color: var(--ui-bg-soft);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

[data-theme-icon="sun"] { display: none; }
html.dark [data-theme-icon="sun"] { display: block; }
html.dark [data-theme-icon="moon"] { display: none; }

/* Main Layout */
.page-main {
  flex: 1;
  padding: 40px 0 80px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 24px;
  align-items: stretch;
}

/* Cards & Panels - Flat, clean borders */
.hero-panel, .surface-card, .section-card, .feature-card, .product-card, .form-card, .feed-card, .cta-band {
  background-color: var(--ui-bg-solid);
  border: 1px solid var(--ui-border);
  border-radius: var(--ui-radius-lg);
  padding: 24px;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.hero-panel.hero-primary {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 40px;
}

.hero-panel.hero-secondary {
  display: grid;
  gap: 16px;
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
}

.hero-secondary > .surface-card {
  border-radius: var(--ui-radius-lg);
}

/* Typography */
.eyebrow {
  display: inline-block;
  color: var(--ui-accent);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.display-title {
  margin: 0 0 16px;
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--ui-text-primary);
}

.hero-copy {
  margin: 0;
  color: var(--ui-text-secondary);
  font-size: 1rem;
  max-width: 560px;
}

/* Buttons */
.cta-row, .button-row, .pill-row, .link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.primary-button, .secondary-button, .soft-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--ui-radius-md);
  padding: 8px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: background-color 0.15s ease, border-color 0.15s ease;
  cursor: pointer;
  border: 1px solid transparent;
}

.primary-button {
  background-color: var(--ui-text-primary);
  color: var(--ui-bg-solid);
}

html.dark .primary-button {
  background-color: var(--ui-text-primary);
  color: var(--ui-bg-page);
}

.primary-button:hover {
  opacity: 0.9;
}

.secondary-button {
  background-color: var(--ui-bg-solid);
  color: var(--ui-text-primary);
  border-color: var(--ui-border);
}

.secondary-button:hover {
  background-color: var(--ui-bg-soft);
}

.soft-button {
  background-color: var(--ui-bg-soft);
  color: var(--ui-text-primary);
}

.soft-button:hover {
  background-color: var(--ui-bg-muted);
}

/* Metrics */
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 40px;
  border-top: 1px solid var(--ui-border);
  padding-top: 24px;
}

.metric-card {
  display: flex;
  flex-direction: column;
}

.metric-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ui-text-primary);
}

.metric-label {
  color: var(--ui-text-secondary);
  font-size: 0.75rem;
  margin-top: 4px;
}

/* Sections */
.section-stack {
  display: grid;
  gap: 32px;
  margin-top: 40px;
}

.section-header {
  margin-bottom: 20px;
}

.section-title {
  margin: 0 0 8px;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.section-subtitle {
  margin: 0;
  color: var(--ui-text-secondary);
  font-size: 0.875rem;
}

/* Product Cards */
.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.product-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
}

.product-topline, .card-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.75rem;
  margin-bottom: 8px;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--ui-radius-full);
  background-color: var(--ui-bg-soft);
  color: var(--ui-text-secondary);
  font-weight: 500;
}

.muted-pill {
  background-color: transparent;
  border: 1px solid var(--ui-border);
}

.card-title {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
}

.card-copy {
  margin: 0;
  color: var(--ui-text-secondary);
  font-size: 0.875rem;
  flex-grow: 1;
}

.link-cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.link-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border-radius: var(--ui-radius-full);
  background-color: var(--ui-bg-soft);
  color: var(--ui-text-primary);
  font-size: 0.75rem;
  font-weight: 500;
}

.link-chip:hover {
  background-color: var(--ui-bg-muted);
}

/* Forms */
.content-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 24px;
}

.form-card form, .stack-form {
  display: grid;
  gap: 16px;
}

.field {
  display: grid;
  gap: 6px;
}

.field label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ui-text-primary);
}

.field input, .field textarea, .field select {
  width: 100%;
  border-radius: var(--ui-radius-md);
  border: 1px solid var(--ui-border);
  background-color: var(--ui-bg-solid);
  color: var(--ui-text-primary);
  padding: 8px 12px;
  font-size: 0.875rem;
  outline: none;
  transition: border-color 0.15s ease;
}

.field textarea {
  min-height: 100px;
  resize: vertical;
}

.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--ui-accent);
}

/* Notifications */
.status-box, .empty-state, .notice-box {
  border-radius: var(--ui-radius-md);
  padding: 12px 16px;
  border: 1px solid var(--ui-border);
  background-color: var(--ui-bg-soft);
  color: var(--ui-text-secondary);
  font-size: 0.875rem;
}

/* Feeds */
.feed-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feed-item {
  padding: 12px;
  border-radius: var(--ui-radius-md);
  background-color: var(--ui-bg-soft);
}

.feed-meta {
  color: var(--ui-text-muted);
  font-size: 0.75rem;
}

.prose-copy {
  color: var(--ui-text-secondary);
  font-size: 0.875rem;
}

.prose-copy p {
  margin: 0 0 0.75em;
}

.prose-copy p:last-child {
  margin-bottom: 0;
}

/* CTA */
.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--ui-border);
  background-color: var(--ui-bg-page);
}

.site-footer-inner {
  padding: 32px 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  color: var(--ui-text-muted);
}

.footer-links {
  display: flex;
  gap: 16px;
}

.footer-links a {
  font-size: 0.875rem;
}

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

/* Animations */
.loading-dot::after {
  content: "...";
  display: inline-block;
  width: 1em;
  text-align: left;
  animation: loadingDots 1.5s steps(4, end) infinite;
}

@keyframes loadingDots {
  0% { content: ""; }
  25% { content: "."; }
  50% { content: ".."; }
  75% { content: "..."; }
  100% { content: ""; }
}

/* Responsive */
@media (max-width: 768px) {
  .hero-grid, .content-grid, .product-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-panel.hero-primary {
    padding: 24px;
    min-height: auto;
  }
  
  .hero-metrics {
    grid-template-columns: 1fr 1fr;
  }
  
  .cta-band, .site-footer-inner {
    flex-direction: column;
  }
}

/* Mobile Bottom Nav */
.mobile-bottom-nav {
  display: none;
}

@media (max-width: 768px) {
  .site-nav {
    display: none;
  }

  .mobile-bottom-nav {
    display: block;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(249, 250, 251, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--ui-border);
    z-index: 100;
    padding: 8px 16px calc(8px + env(safe-area-inset-bottom));
  }

  html.dark .mobile-bottom-nav {
    background-color: rgba(3, 7, 18, 0.85);
    border-top: 1px solid var(--ui-border-strong);
  }

  .mobile-bottom-nav-inner {
    display: flex;
    justify-content: space-around;
    align-items: center;
  }

  .mobile-nav-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    color: var(--ui-text-muted);
    font-size: 0.65rem;
    font-weight: 500;
    text-decoration: none;
  }

  .mobile-nav-link.is-active {
    color: var(--ui-accent);
  }

  .mobile-nav-link svg {
    width: 22px;
    height: 22px;
  }

  .page-main {
    padding-bottom: 80px;
  }

  .site-header-inner {
    min-height: 56px;
  }
}