/* InfoBites Research — Global Stylesheet */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;0,900;1,400;1,600&family=Source+Serif+4:ital,opsz,wght@0,8..60,300;0,8..60,400;0,8..60,600;1,8..60,300;1,8..60,400&family=Inter:wght@300;400;500;600&display=swap');

/* ── Tokens ── */
:root {
  --bg:         #FAFAF8;
  --bg-parchment: #F0EDE6;
  --ink:        #0F0F0F;
  --ink-mid:    #3A3A3A;
  --ink-light:  #6B6B6B;
  --ink-faint:  #ADADAD;
  --crimson:    #E09B1A;
  --crimson-dark: #C07F0C;
  --teal:       #2BAE82;
  --teal-dark:  #1E8A64;
  --rule:       #D8D4CC;
  --white:      #FFFFFF;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Source Serif 4', Georgia, serif;
  --font-ui:      'Inter', system-ui, sans-serif;

  --max-w: 1160px;
  --col-gap: 40px;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ── Utility ── */
.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow {
  font-family: var(--font-ui);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--crimson);
}

.rule-top    { border-top: 1px solid var(--rule); }
.rule-bottom { border-bottom: 1px solid var(--rule); }

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

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

/* ── Navigation ── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--rule);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 90px;
}

.nav-wordmark {
  display: flex;
  align-items: center;
}

.nav-wordmark img {
  height: 56px;
  width: auto;
  display: block;
}

.nav-wordmark .name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.nav-wordmark .badge {
  font-family: var(--font-ui);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--crimson);
  padding: 2px 7px;
  border-radius: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 500;
}

.nav-links a {
  color: var(--ink-mid);
  transition: color 0.15s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--ink); }

.nav-cta {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--white) !important;
  background: var(--teal);
  padding: 8px 18px;
  border-radius: 2px;
  transition: background 0.15s !important;
}
.nav-cta:hover { background: var(--teal-dark) !important; color: var(--white) !important; }

.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-direction: column;
  gap: 5px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
}

/* ── Footer ── */
.site-footer {
  background: var(--ink);
  color: var(--ink-faint);
  padding: 56px 0 32px;
  margin-top: 96px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid #2A2A2A;
}

.footer-brand .name {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--white);
  display: block;
  margin-bottom: 10px;
}

.footer-brand p {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  line-height: 1.6;
  max-width: 300px;
}

.footer-col h4 {
  font-family: var(--font-ui);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 16px;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  color: var(--ink-faint);
  transition: color 0.15s;
}
.footer-col a:hover { color: var(--white); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  font-family: var(--font-ui);
  font-size: 0.75rem;
}

.footer-bottom a { color: var(--ink-faint); }
.footer-bottom a:hover { color: var(--white); }

/* ── Toolkit Cover Card ── */
.toolkit-card {
  display: flex;
  background: var(--white);
  border: 1px solid var(--rule);
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.2s;
  text-decoration: none;
  color: inherit;
}

.toolkit-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.10);
  transform: translateY(-2px);
  color: inherit;
}

.toolkit-card-spine {
  width: 8px;
  background: var(--crimson);
  flex-shrink: 0;
}

.toolkit-card-cover {
  background: var(--bg-parchment);
  width: 120px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px 12px;
  gap: 8px;
  border-right: 1px solid var(--rule);
}

.toolkit-card-cover .issue-no {
  font-family: var(--font-ui);
  font-size: 0.5625rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-light);
}

.toolkit-card-cover .cover-icon {
  font-size: 2rem;
  line-height: 1;
}

.toolkit-card-cover .cover-year {
  font-family: var(--font-ui);
  font-size: 0.625rem;
  color: var(--ink-faint);
}

.toolkit-card-body {
  padding: 24px 28px;
  flex: 1;
}

.toolkit-card-body .category {
  font-family: var(--font-ui);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--crimson);
  margin-bottom: 8px;
}

.toolkit-card-body h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink);
  margin-bottom: 8px;
}

.toolkit-card-body p {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--ink-mid);
  line-height: 1.6;
  margin-bottom: 16px;
}

.toolkit-card-meta {
  display: flex;
  gap: 20px;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--ink-light);
}

.toolkit-card-meta span::before {
  content: '';
}

.toolkit-card-price {
  align-self: center;
  padding: 20px 28px 20px 0;
  text-align: right;
  flex-shrink: 0;
}

.toolkit-card-price .price {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--ink);
  display: block;
}

.toolkit-card-price .price-label {
  font-family: var(--font-ui);
  font-size: 0.6875rem;
  color: var(--ink-light);
  display: block;
  margin-bottom: 12px;
}

.btn-primary {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--white);
  background: var(--teal);
  padding: 10px 20px;
  border-radius: 2px;
  transition: background 0.15s;
  white-space: nowrap;
}
.btn-primary:hover { background: var(--teal-dark); color: var(--white); }

.btn-secondary {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--teal);
  border: 1.5px solid var(--teal);
  padding: 9px 20px;
  border-radius: 2px;
  transition: all 0.15s;
}
.btn-secondary:hover { background: var(--teal); color: var(--white); }

/* ── Related toolkits strip (below author line on detail pages) ── */
.related-strip {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
}

.related-strip-label {
  font-family: var(--font-ui);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 14px;
  display: block;
}

.related-cards {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.related-card {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--rule);
  padding: 14px 16px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.related-card:hover {
  border-color: var(--teal);
  box-shadow: 0 2px 8px rgba(0,0,0,0.07);
  color: inherit;
}

.related-card-spine {
  width: 4px;
  align-self: stretch;
  flex-shrink: 0;
  border-radius: 1px;
}

.related-card-icon {
  flex-shrink: 0;
}

.related-card-text {
  min-width: 0;
}

.related-card-text .rc-title {
  font-family: var(--font-ui);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--ink);
  display: block;
  line-height: 1.3;
  margin-bottom: 2px;
}

.related-card-text .rc-meta {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--ink-light);
  display: block;
}

.related-card.soon {
  opacity: 0.55;
  pointer-events: none;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .wrap { padding: 0 20px; }

  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--rule);
    padding: 20px 32px;
    gap: 16px;
    align-items: flex-start;
  }

  .toolkit-card {
    flex-direction: column;
  }
  .toolkit-card-spine {
    width: 100%;
    height: 6px;
  }
  .toolkit-card-cover {
    width: 100%;
    flex-direction: row;
    justify-content: flex-start;
    border-right: none;
    border-bottom: 1px solid var(--rule);
    padding: 14px 20px;
  }
  .toolkit-card-price {
    padding: 0 20px 20px;
    text-align: left;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* ── SVG Icon helpers ── */
.ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  vertical-align: middle;
  line-height: 1;
}
.ico svg { display: block; }

/* tool-icon now hosts SVG */
.tool-icon {
  width: 36px;
  height: 36px;
  background: var(--white);
  border: 1px solid var(--rule);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--crimson);
  flex-shrink: 0;
}

/* author avatar hosts SVG pen icon */
.tk-author-avatar,
.author-avatar-lg {
  color: var(--crimson);
}

/* contact item icons */
.contact-item .icon { color: var(--crimson); }

/* author cred icons */
.author-cred .icon { color: var(--crimson); }

/* credential check */
.credential-list .check { color: var(--crimson); }

/* card meta icons */
.toolkit-card-meta span { display: inline-flex; align-items: center; gap: 5px; }

/* ── Footer contact block ── */
.footer-contact {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--ink-faint);
  font-variant-numeric: tabular-nums;
}

.footer-contact-item a {
  color: var(--ink-faint);
  transition: color 0.15s;
}

.footer-contact-item a:hover { color: var(--white); }

.footer-contact-icon {
  display: inline-flex;
  align-items: center;
  color: var(--crimson);
  flex-shrink: 0;
  opacity: 0.8;
}