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

/* Base */
:root {
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-text: #1a1a1a;
  --color-text-light: #6b7280;
  --color-bg: #ffffff;
  --color-bg-alt: #f8f9fa;
  --color-bg-card: #ffffff;
  --color-border: #e5e7eb;
  --color-border-light: #f3f4f6;
  --color-tag-bg: #eff6ff;
  --color-tag-border: #bfdbfe;
  --color-tag-text: #1d4ed8;
  --max-width: 1100px;
}

body {
  font-family: 'DM Sans', sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
}

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

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* Header */
header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  height: 4rem;
  padding: 0 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

header .logo {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
  margin-right: 2.5rem;
}

header .logo:hover {
  text-decoration: none;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.header-nav a {
  color: var(--color-text-light);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  transition: background 0.15s, color 0.15s;
}

.header-nav a:hover {
  color: var(--color-text);
  background: var(--color-bg-alt);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text);
  padding: 0.5rem;
  border-radius: 8px;
  line-height: 0;
  margin-left: auto;
}

.nav-toggle:hover {
  background: var(--color-bg-alt);
}

.nav-mobile {
  display: none;
  flex-direction: column;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 0.5rem 1.5rem 1rem;
}

.nav-mobile.open {
  display: flex;
}

.nav-mobile a {
  color: var(--color-text-light);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--color-border-light);
}

.nav-mobile a:last-child {
  border-bottom: none;
}

.nav-mobile a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

/* Main */
main {
  max-width: var(--max-width);
  padding: 2.5rem 2rem;
  margin: 0 auto;
}

/* Footer */
footer {
  border-top: 1px solid var(--color-border);
  padding: 2.5rem 2rem;
  background: var(--color-bg-alt);
  margin-top: 3rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.footer-links a {
  color: var(--color-text-light);
  font-size: 0.85rem;
  font-weight: 500;
}

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

footer p {
  color: var(--color-text-light);
  font-size: 0.8rem;
}

footer p a {
  color: var(--color-text-light);
}

footer p a:hover {
  color: var(--color-primary);
}

/* Hero */
.hero {
  text-align: center;
  padding: 4rem 0 2rem;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--color-text);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 1.15rem;
  color: var(--color-text-light);
  max-width: 560px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}

.hero-links {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.15s;
}

.hero-links a.primary {
  background: var(--color-primary);
  color: white;
}

.hero-links a.primary:hover {
  background: var(--color-primary-dark);
  text-decoration: none;
}

.hero-links a.secondary {
  border: 1px solid var(--color-border);
  color: var(--color-text);
  background: var(--color-bg);
}

.hero-links a.secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  text-decoration: none;
}

/* Hero search */
.hero-search {
  max-width: 500px;
  margin: 0 auto;
  position: relative;
}

.hero-search input {
  width: 100%;
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  padding: 0.85rem 1.25rem 0.85rem 2.75rem;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.hero-search input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.hero-search .search-icon {
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-light);
  pointer-events: none;
}

/* Section divider */
.section-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 3rem 0;
}

/* Feature grid */
.features {
  margin-top: 1rem;
}

.features > h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.features > p {
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.feature {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.75rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.feature:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.06);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--color-tag-bg);
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.feature h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.feature p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.feature a {
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

/* Section headers */
.section-header {
  margin-bottom: 1.5rem;
}

.section-header h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
  letter-spacing: -0.01em;
}

.section-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.section-header p {
  color: var(--color-text-light);
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.06);
  text-decoration: none;
}

.card h3 {
  margin-bottom: 0.4rem;
  font-size: 1.05rem;
  color: var(--color-text);
}

.card p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.card .meta {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-top: 0.75rem;
}

.tag {
  display: inline-block;
  background: var(--color-tag-bg);
  border: 1px solid var(--color-tag-border);
  border-radius: 6px;
  padding: 0.15rem 0.5rem;
  font-size: 0.75rem;
  color: var(--color-tag-text);
  margin-right: 0.25rem;
  margin-bottom: 0.25rem;
  font-weight: 500;
}

/* Filter bar */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.filter-search {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  padding: 0.6rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg);
  min-width: 220px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.filter-search:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.filter-select {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  padding: 0.6rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg);
  color: var(--color-text);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.filter-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.filter-count {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-left: auto;
}

.no-results {
  text-align: center;
  color: var(--color-text-light);
  padding: 3rem 0;
}

/* Detail page */
.detail-header {
  margin-bottom: 2rem;
}

.detail-header a {
  font-size: 0.9rem;
  color: var(--color-text-light);
  display: inline-block;
  margin-bottom: 0.75rem;
}

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

.detail-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.info-box {
  background: var(--color-tag-bg);
  border-left: 4px solid var(--color-primary);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  margin-top: 1rem;
  margin-bottom: 2.5rem;
  font-size: 0.95rem;
  line-height: 1.6;
}

.info-box ul {
  margin-top: 0.75rem;
  padding-left: 1.25rem;
}

.info-box li {
  margin-bottom: 0.5rem;
}

.info-box a {
  color: var(--color-primary);
  font-weight: 600;
}

.detail-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.5rem;
}

.detail-info dt {
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.detail-info dd {
  margin-bottom: 1rem;
}

section h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

section p {
  color: var(--color-text-light);
  line-height: 1.7;
}

/* Verdict badges */
.verdict-badge {
  background: #065f46;
  color: white;
  border-color: #065f46;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

/* Related section */
.related-section {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.5rem;
}

.related-section h2 {
  margin-bottom: 1rem;
}

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

.related-group h3 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.4rem;
}

.related-group ul {
  list-style: none;
  padding: 0;
}

.related-group li {
  font-size: 0.9rem;
  padding: 0.3rem 0;
  color: var(--color-text-light);
}

.related-group a {
  font-weight: 500;
}

/* Affiliate links */
.affiliate-section {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.5rem;
}

.affiliate-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 0.75rem;
}

.affiliate-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--color-primary);
  color: white;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.15s;
}

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

.affiliate-disclosure {
  margin-top: 1rem;
  font-size: 0.75rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* Suggest button */
.suggest-btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: var(--color-primary);
  color: white;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.15s;
}

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

/* Article body */
.article-body {
  margin-top: 2rem;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text);
}

.article-body p {
  margin-bottom: 1.25rem;
  color: var(--color-text);
}

/* Tablet */
@media (max-width: 768px) {
  .nav-toggle {
    display: block !important;
  }

  .header-nav {
    display: none;
  }

  header {
    padding: 0 1.25rem;
  }

  main {
    padding: 2rem 1.25rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-links {
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
  }

  .hero-links a {
    width: 100%;
    max-width: 320px;
    justify-content: center;
  }

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

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

  .detail-info {
    grid-template-columns: 1fr;
  }

  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-search,
  .filter-select {
    width: 100%;
  }

  .filter-count {
    margin-left: 0;
    text-align: center;
  }

  .suggest-btn {
    display: block;
    text-align: center;
  }

  footer {
    padding: 2rem 1.25rem;
  }

  .footer-links {
    gap: 1rem;
  }
}

/* Small mobile */
@media (max-width: 480px) {
  main {
    padding: 1.5rem 1rem;
  }

  .hero {
    padding: 2rem 0 1.5rem;
  }

  .hero h1 {
    font-size: 1.6rem;
  }

  .hero p {
    font-size: 0.95rem;
  }

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

  .card {
    padding: 1.25rem;
  }

  .tag {
    font-size: 0.7rem;
  }
}