/* ── Reset & Base ────────────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #FAFAFA;
  --surface: #ffffff;
  --border: #e2e0f0;
  --text-primary: #1C1C1E;
  --text-secondary: #6b6b68;
  --text-muted: #9b9b97;
  --accent: #5C4BDB;
  --accent-hover: #4A3BC4;
  --accent-coral: #FF5E5B;
  --tag-bg: #F0EDFF;
  --tag-text: #5C4BDB;
  --featured-dot: #FF5E5B;
  --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;
  --radius: 12px;
  --max-width: 1100px;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  border-top: 3px solid var(--accent);
}

/* ── Layout ──────────────────────────────────────────────────────────────── */
.site-wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Nav ─────────────────────────────────────────────────────────────────── */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0 16px;
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--accent);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 20px;
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}

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

/* ── Header ──────────────────────────────────────────────────────────────── */
.site-header {
  padding: 40px 0 32px;
  border-bottom: 1px solid var(--border);
}

.site-header h1 {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.2;
}

.site-header .tagline {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  max-width: 560px;
}

.update-meta {
  margin-top: 12px;
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ── Filters ─────────────────────────────────────────────────────────────── */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}

.filter-btn {
  padding: 8px 18px;
  font-size: 0.8125rem;
  font-weight: 500;
  font-family: var(--font-sans);
  border: 2px solid var(--accent);
  border-radius: 100px;
  background: #ffffff;
  color: var(--accent);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(92, 75, 219, 0.1);
}

.filter-btn:hover {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(92, 75, 219, 0.2);
  transform: translateY(-2px);
}

.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(92, 75, 219, 0.3);
}

/* ── Recommendations Grid ────────────────────────────────────────────────── */
.rec-grid {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 32px 0;
}

/* ── Recommendation Card ─────────────────────────────────────────────────── */
.rec-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.rec-card.hidden {
  display: none;
}

.rec-card:hover {
  box-shadow: 0 8px 32px rgba(92, 75, 219, 0.12);
  transform: translateY(-3px);
}

.rec-card-link {
  display: flex;
  flex-direction: column;
  height: 100%;
  text-decoration: none;
  color: inherit;
}

.rec-card-image-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #e8e8f0;
  flex-shrink: 0;
}

.rec-card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.rec-card:hover .rec-card-image {
  transform: scale(1.04);
}

.rec-card-body {
  padding: 16px 18px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.rec-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.rec-card-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 6px;
  line-height: 1.3;
}

.rec-card-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.55;
  flex: 1;
}

.rec-card-cta {
  display: inline-block;
  margin-top: 14px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.01em;
  transition: color 0.15s ease;
}

.rec-card:hover .rec-card-cta {
  color: var(--accent-hover);
}

/* ── Category tag ────────────────────────────────────────────────────────── */
.category-tag {
  display: inline-block;
  padding: 2px 9px;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--tag-bg);
  color: var(--tag-text);
  border-radius: 100px;
  white-space: nowrap;
}

/* ── Featured dot ────────────────────────────────────────────────────────── */
.featured-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--featured-dot);
  flex-shrink: 0;
}

/* ── No Results ──────────────────────────────────────────────────────────── */
.no-results {
  padding: 48px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.875rem;
  display: none;
}

/* ── Footer ──────────────────────────────────────────────────────────────── */
.site-footer {
  padding: 32px 0;
  margin-top: 8px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.site-footer p {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.site-footer a {
  color: var(--text-secondary);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--accent);
}

.legend {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ── Breadcrumb ──────────────────────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 18px 0 0;
  font-size: 0.8125rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

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

.breadcrumb a:hover {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.breadcrumb-sep {
  color: var(--text-muted);
  font-size: 0.75rem;
}

/* ── Product Detail Page ─────────────────────────────────────────────────── */
.product-detail {
  padding: 28px 0 48px;
  max-width: 760px;
}

.product-hero {
  margin-bottom: 32px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.product-hero-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
}

.product-badges {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.featured-badge {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--accent-coral);
}

.product-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.product-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1.2;
  margin: 0;
}

.product-actions-inline {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.product-long-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}

/* ── Highlights ──────────────────────────────────────────────────────────── */
.product-highlights {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 32px;
}

.highlights-heading {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.highlights-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.highlights-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--text-primary);
  line-height: 1.5;
}

.highlights-list li::before {
  content: '';
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 7px;
}

/* ── Product Actions ─────────────────────────────────────────────────────── */
.product-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-block;
  padding: 12px 28px;
  background: var(--accent);
  color: #ffffff;
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: var(--font-sans);
  text-decoration: none;
  border-radius: 100px;
  transition: background 0.15s ease, transform 0.1s ease;
  letter-spacing: 0.01em;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-block;
  padding: 12px 20px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 100px;
  transition: all 0.15s ease;
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .rec-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }
}

@media (max-width: 600px) {
  :root {
    --max-width: 100%;
  }

  .site-wrapper {
    padding: 0 16px;
  }

  .site-nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .site-header h1 {
    font-size: 1.5rem;
  }

  .rec-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 20px 0;
  }

  .product-title {
    font-size: 1.5rem;
  }

  .product-detail {
    padding: 20px 0 40px;
  }

  .product-header {
    flex-direction: column;
    align-items: stretch;
  }

  .product-actions-inline {
    justify-content: flex-start !important;
    flex-direction: column;
    align-items: stretch;
  }

  .product-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-primary,
  .btn-secondary {
    text-align: center;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}