/* ==========================================================================
   blog.css · Insights blog styles · Cristofolini Portfolio
   ========================================================================== */

/* --------------------------------------------------------------------------
   Blog hero
   -------------------------------------------------------------------------- */
.blog-hero {
  padding: clamp(96px, 11vw, 152px) 0 clamp(40px, 5vw, 64px);
}

.blog-hero__eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--y);
  margin-bottom: 20px;
}

.blog-hero__title {
  font-family: var(--display);
  font-size: clamp(56px, 8vw, 104px);
  line-height: .92;
  text-transform: uppercase;
  margin-bottom: 24px;
  color: var(--t1);
}

.blog-hero__desc {
  font-size: clamp(15px, 1.4vw, 17px);
  color: var(--t2);
  max-width: 480px;
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   Posts section
   -------------------------------------------------------------------------- */
.posts-section {
  padding-bottom: 80px;
}

.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

/* Post card — mirrors .wcard from globals */
.post-card {
  display: flex;
  flex-direction: column;
  background: var(--bg1);
  border: 1px solid var(--b0);
  border-radius: 0;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: border-color .3s, transform .5s var(--ease-out);
}

.post-card:hover {
  border-color: rgba(243,176,47,.2);
  transform: translateY(-4px);
}

.post-card:focus-visible {
  outline: 2px solid var(--y);
  outline-offset: 3px;
}

/* Image slot */
.post-card__img {
  aspect-ratio: 16 / 9;
  background: var(--bg2);
  overflow: hidden;
}

.post-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .7s var(--ease-out), filter .4s;
  filter: grayscale(10%);
}

.post-card:hover .post-card__img img {
  transform: scale(1.04);
  filter: grayscale(0%);
}

/* Card body */
.post-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 24px 28px 28px;
  gap: 10px;
}

.post-card__meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.post-card__date,
.post-card__read-time {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--t3);
}

.post-card__sep {
  color: var(--t3);
  font-size: 12px;
  opacity: .5;
}

.post-card__tag {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--y);
  border: 1px solid var(--accent-border);
  background: var(--accent-dim);
  padding: 3px 8px;
}

.post-card__title {
  font-family: var(--sans);
  font-size: clamp(16px, 1.6vw, 19px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--t1);
}

.post-card__excerpt {
  font-size: 16px;
  line-height: 1.7;
  color: var(--t2);
  flex: 1;
}

.post-card__cta {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--y);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  transition: gap .2s;
}

.post-card:hover .post-card__cta { gap: 10px; }

/* Empty state */
.posts-empty {
  grid-column: 1 / -1;
  padding: 72px 40px;
  text-align: center;
  border: 1px dashed var(--b1);
}

.posts-empty__label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--t3);
  margin-bottom: 10px;
}

.posts-empty__text {
  color: var(--t2);
  font-size: 16px;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   Newsletter section
   -------------------------------------------------------------------------- */
.newsletter-section {
  padding: clamp(48px, 6vw, 80px) 0 clamp(80px, 10vw, 120px);
  border-top: 1px solid var(--b0);
}

.newsletter-inner {
  max-width: 680px;
}

.newsletter-eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--y);
  margin-bottom: 20px;
}

.newsletter-title {
  font-family: var(--display);
  font-size: clamp(28px, 3.5vw, 48px);
  text-transform: uppercase;
  line-height: .95;
  margin-bottom: 16px;
  color: var(--t1);
}

.newsletter-desc {
  color: var(--t2);
  font-size: 16px;
  line-height: 1.65;
  margin-bottom: 28px;
}

.newsletter-form {
  display: flex;
  gap: 0;
}

.newsletter-input {
  flex: 1;
  min-width: 200px;
  background: var(--bg2);
  border: 1px solid var(--b1);
  border-right: none;
  border-radius: 0;
  padding: 13px 16px;
  font-family: var(--sans);
  font-size: 16px;
  color: var(--t1);
  transition: border-color .2s;
}

.newsletter-input:focus { border-color: var(--accent-border); }
.newsletter-input::placeholder { color: var(--t3); }

.newsletter-btn {
  background: var(--y);
  color: var(--bg);
  border: none;
  border-radius: 0;
  padding: 13px 22px;
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: .1em;
  text-transform: uppercase;
  font-weight: 700;
  cursor: pointer;
  transition: background .2s;
  white-space: nowrap;
  flex-shrink: 0;
}

.newsletter-btn:hover { background: var(--y-dk); }
.newsletter-btn:focus-visible { outline: 2px solid var(--y); outline-offset: 3px; }

.newsletter-disclaimer {
  margin-top: 12px;
  font-size: 12px;
  color: var(--t3);
  font-family: var(--mono);
  letter-spacing: .06em;
}

/* --------------------------------------------------------------------------
   Kit (ConvertKit) embedded form — restyled to match the site theme.
   Kit's script injects inline styles on its own markup, so overrides need
   !important to win against those inline styles.
   -------------------------------------------------------------------------- */
.formkit-form[data-uid="87cb6ee129"] .formkit-fields {
  display: flex;
  gap: 0;
  align-items: stretch;
  flex-wrap: wrap;
}

.formkit-form[data-uid="87cb6ee129"] .formkit-field {
  flex: 1 1 200px;
  margin: 0 !important;
}

.formkit-form[data-uid="87cb6ee129"] .formkit-input {
  background: var(--bg2) !important;
  border: 1px solid var(--b1) !important;
  border-right: none !important;
  border-radius: 0 !important;
  color: var(--t1) !important;
  font-family: var(--sans) !important;
  font-size: 16px !important;
  padding: 13px 16px !important;
  width: 100% !important;
}

.formkit-form[data-uid="87cb6ee129"] .formkit-input::placeholder { color: var(--t3); opacity: 1; }
.formkit-form[data-uid="87cb6ee129"] .formkit-input:focus { border-color: var(--accent-border) !important; }

.formkit-form[data-uid="87cb6ee129"] .formkit-submit {
  background: var(--y) !important;
  color: var(--bg) !important;
  border-radius: 0 !important;
  font-family: var(--mono) !important;
  font-size: 14px !important;
  letter-spacing: .1em !important;
  text-transform: uppercase !important;
  font-weight: 700 !important;
  white-space: nowrap !important;
  flex-shrink: 0;
}

.formkit-form[data-uid="87cb6ee129"] .formkit-submit > span { padding: 13px 22px !important; }
.formkit-form[data-uid="87cb6ee129"] .formkit-submit:hover { background: var(--y-dk) !important; }
.formkit-form[data-uid="87cb6ee129"] .formkit-submit:focus-visible { outline: 2px solid var(--y); outline-offset: 3px; }

.formkit-form[data-uid="87cb6ee129"] .formkit-alert-error {
  color: var(--danger);
  font-size: 12px;
  margin: 0 0 8px;
  padding: 0;
  list-style: none;
}

.formkit-form[data-uid="87cb6ee129"] .formkit-powered-by-convertkit-container { margin-top: 10px; }
.formkit-form[data-uid="87cb6ee129"] .formkit-powered-by-convertkit {
  font-family: var(--mono) !important;
  font-size: 12px !important;
  color: var(--t3) !important;
  text-decoration: none !important;
}

@media (max-width: 640px) {
  .formkit-form[data-uid="87cb6ee129"] .formkit-input {
    border-right: 1px solid var(--b1) !important;
    border-bottom: none !important;
  }
}

/* --------------------------------------------------------------------------
   Single article — hero
   -------------------------------------------------------------------------- */
.article-hero {
  padding: clamp(88px, 10vw, 140px) 0 clamp(32px, 4vw, 48px);
}

.article-hero__back {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--t3);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 40px;
  transition: color .2s;
}

.article-hero__back:hover { color: var(--t1); }

.article-hero__tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--y);
  border: 1px solid var(--accent-border);
  background: var(--accent-dim);
  padding: 4px 10px;
  margin-bottom: 24px;
}

.article-hero__title {
  font-family: var(--display);
  font-size: clamp(40px, 5.5vw, 80px);
  line-height: .93;
  letter-spacing: .01em;
  text-transform: uppercase;
  max-width: 900px;
  margin-bottom: 28px;
  color: var(--t1);
}

.article-hero__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--t3);
  letter-spacing: .04em;
}

.article-hero__meta-sep {
  opacity: .35;
}

/* --------------------------------------------------------------------------
   Article cover image
   -------------------------------------------------------------------------- */
.article-cover {
  border-top: 1px solid var(--b0);
  border-bottom: 1px solid var(--b0);
  overflow: hidden;
  line-height: 0;
  background: var(--bg1);
}

.article-cover img {
  width: 100%;
  max-height: 500px;
  object-fit: cover;
  display: block;
}

/* --------------------------------------------------------------------------
   Single article — layout
   -------------------------------------------------------------------------- */
.article-layout {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: clamp(40px, 5vw, 72px);
  align-items: start;
  max-width: 1100px;
  margin: 0 auto;
  padding: 64px var(--gap) 80px;
}

/* --------------------------------------------------------------------------
   TOC
   -------------------------------------------------------------------------- */
.article-toc {
  position: sticky;
  top: 96px;
}

.article-toc__label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--t3);
  margin-bottom: 16px;
}

.article-toc__link {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.4;
  color: var(--t3);
  text-decoration: none;
  padding: 6px 0 6px 12px;
  border-left: 2px solid transparent;
  transition: color .2s, border-color .2s;
  letter-spacing: .04em;
}

.article-toc__link:hover,
.article-toc__link.is-active {
  color: var(--t1);
  border-left-color: var(--y);
}

/* --------------------------------------------------------------------------
   Article — section headers (mirrors cs-section__header)
   -------------------------------------------------------------------------- */
.article-section__hd {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin: 0 0 24px;
  padding-top: 56px;
  border-top: 1px solid var(--b0);
}

.article-section__hd:first-child {
  border-top: none;
  padding-top: 40px;
}

.article-section__num {
  font-family: var(--mono);
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 700;
  color: var(--y);
  opacity: .3;
  flex-shrink: 0;
  line-height: 1;
}

.article-section__title {
  font-family: var(--sans);
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 800;
  color: var(--t1);
  line-height: 1.15;
  letter-spacing: -.01em;
  scroll-margin-top: 96px;
}

/* --------------------------------------------------------------------------
   Article body typography
   -------------------------------------------------------------------------- */
.article-body {
  min-width: 0;
}

/* Plain H2 for unnumbered sections (conclusion, sources) */
.article-body > h2 {
  font-family: var(--sans);
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight: 700;
  color: var(--t1);
  margin: 56px 0 20px;
  scroll-margin-top: 96px;
  padding-top: 40px;
  border-top: 1px solid var(--b0);
}

/* H3 — subsection */
.article-body h3 {
  font-family: var(--mono);
  font-size: clamp(10px, 1vw, 11px);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--t2);
  margin: 40px 0 16px;
  scroll-margin-top: 96px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.article-body h3::before {
  content: '';
  display: inline-block;
  width: 18px;
  height: 1px;
  background: var(--y);
  flex-shrink: 0;
  opacity: .6;
}

.article-body p {
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.82;
  color: var(--t1);
  margin-bottom: 24px;
}

.article-body ul,
.article-body ol {
  padding-left: 24px;
  margin-bottom: 28px;
}

.article-body li {
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.8;
  color: var(--t1);
  margin-bottom: 12px;
}

.article-body strong { font-weight: 700; }

.article-body a {
  color: var(--y);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body a:hover { opacity: .8; }

.article-body code {
  font-family: var(--mono);
  font-size: .88em;
  background: var(--bg2);
  border: 1px solid var(--b1);
  border-radius: 0;
  padding: 2px 7px;
  color: var(--t2);
}

.article-pullquote {
  border-left: 3px solid var(--y);
  padding: 16px 24px;
  margin: 40px 0;
  font-size: clamp(16px, 1.6vw, 19px);
  font-style: italic;
  color: var(--t1);
  line-height: 1.55;
  background: var(--accent-dim);
}

.article-divider {
  border: none;
  border-top: 1px solid var(--b0);
  margin: 56px 0;
}

.article-image {
  width: 100%;
  margin: 32px 0;
  border: 1px solid var(--b0);
}

.article-caption {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--t3);
  text-align: center;
  margin-top: -24px;
  margin-bottom: 32px;
  letter-spacing: .04em;
}

/* "Coming soon" teaser notes */
.article-teaser {
  font-size: 13px;
  color: var(--t3);
  border-left: 2px solid var(--b1);
  padding: 4px 0 4px 14px;
  margin: 8px 0 40px;
  font-style: italic;
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   Article footer — newsletter
   -------------------------------------------------------------------------- */
.article-end {
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--b0);
}

.article-end .newsletter-section {
  border-top: none;
  padding-top: 0;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 860px) {
  .article-layout {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-top: 40px;
  }
  .article-toc { display: none; }
}

@media (max-width: 640px) {
  .posts-grid { grid-template-columns: 1fr; }
  .newsletter-form { flex-direction: column; }
  .newsletter-input {
    border-right: 1px solid var(--b1);
    border-bottom: none;
  }
  .newsletter-btn { width: 100%; }
}