/* Feature pages — builds on landing.css + blog.css tokens. */

.landing-page .feat-hero {
  padding: 100px 0 70px;
  text-align: left;
}
.landing-page .feat-hero .shell { max-width: 1100px; }
.landing-page .feat-hero .feat-kicker {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 14px;
  display: inline-block;
}
.landing-page .feat-hero h1 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(38px, 6vw, 72px);
  letter-spacing: -0.03em;
  line-height: 1.03;
  margin: 0 0 22px;
  max-width: 900px;
}
.landing-page .feat-hero .feat-lead {
  font-size: 19px;
  line-height: 1.55;
  color: var(--ink-dim);
  max-width: 720px;
  margin: 0 0 30px;
}
.landing-page .feat-hero .feat-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}
.landing-page .feat-hero .feat-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-mute);
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.landing-page .feat-hero .feat-meta strong { color: var(--ink); font-weight: 600; }

/* 3-up how-it-works */
.landing-page .feat-how { padding: 60px 0; }
.landing-page .feat-section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.landing-page .feat-section-head h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(30px, 4vw, 44px);
  letter-spacing: -0.025em;
  margin: 0 0 8px;
}
.landing-page .feat-section-head p {
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.55;
  max-width: 520px;
  margin: 0;
}
.landing-page .feat-how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.landing-page .feat-how-step {
  padding: 28px 28px 26px;
  border-radius: 14px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  position: relative;
}
.landing-page .feat-how-step .feat-step-n {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 14px;
  font-weight: 600;
}
.landing-page .feat-how-step h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 22px;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}
.landing-page .feat-how-step p {
  color: var(--ink-dim);
  font-size: 14px;
  line-height: 1.6;
  margin: 0;
}
.landing-page .feat-how-step code {
  font-family: var(--font-mono);
  font-size: 12.5px;
  background: var(--bg-elev-2);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--ink);
}

/* Benefits grid — 6-up */
.landing-page .feat-benefits { padding: 60px 0; }
.landing-page .feat-benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.landing-page .feat-benefit {
  padding: 24px 26px;
  border-radius: 14px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
}
.landing-page .feat-benefit h3 {
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
  color: var(--ink);
}
.landing-page .feat-benefit p {
  color: var(--ink-dim);
  font-size: 13.5px;
  line-height: 1.6;
  margin: 0;
}

/* Use-cases band */
.landing-page .feat-uses {
  padding: 60px 0;
  background: var(--bg-elev);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.landing-page .feat-uses-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.landing-page .feat-use {
  padding: 28px 30px;
  border-radius: 14px;
  background: var(--bg);
  border: 1px solid var(--line);
}
.landing-page .feat-use .eyebrow { display: block; margin-bottom: 10px; }
.landing-page .feat-use h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 24px;
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}
.landing-page .feat-use p {
  color: var(--ink-dim);
  font-size: 14.5px;
  line-height: 1.6;
  margin: 0;
}

/* Technical details section — prose on 760px column */
.landing-page .feat-tech {
  padding: 60px 0;
}
.landing-page .feat-tech .shell { max-width: 820px; }
.landing-page .feat-tech h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(30px, 4vw, 40px);
  letter-spacing: -0.025em;
  margin: 0 0 20px;
}
.landing-page .feat-tech p,
.landing-page .feat-tech li {
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
}
.landing-page .feat-tech p { margin: 0 0 18px; }
.landing-page .feat-tech ul { padding-left: 20px; margin: 0 0 20px; }
.landing-page .feat-tech ul li { margin-bottom: 8px; }
.landing-page .feat-tech pre {
  background: var(--bg-elev-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  overflow-x: auto;
  margin: 8px 0 24px;
  color: var(--ink);
}
.landing-page .feat-tech code {
  font-family: var(--font-mono);
  font-size: 13.5px;
  background: var(--bg-elev-2);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--ink);
  border: 1px solid var(--line);
}
.landing-page .feat-tech h3 {
  font-weight: 600;
  font-size: 18px;
  margin: 36px 0 12px;
  color: var(--ink);
}

/* FAQ */
.landing-page .feat-faq { padding: 60px 0; }
.landing-page .feat-faq .shell { max-width: 820px; }
.landing-page .feat-faq-list {
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: var(--bg-elev);
}
.landing-page .feat-faq-item {
  border-bottom: 1px solid var(--line);
}
.landing-page .feat-faq-item:last-child { border-bottom: 0; }
.landing-page .feat-faq-q {
  padding: 18px 22px;
  font-weight: 600;
  font-size: 15.5px;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}
.landing-page .feat-faq-q::-webkit-details-marker { display: none; }
.landing-page .feat-faq-q::before {
  content: "+";
  display: inline-block;
  width: 16px;
  color: var(--accent);
  font-weight: 700;
  margin-right: 8px;
}
.landing-page .feat-faq-item[open] .feat-faq-q::before { content: "−"; }
.landing-page .feat-faq-a {
  padding: 0 22px 20px 46px;
  color: var(--ink-dim);
  font-size: 14.5px;
  line-height: 1.7;
}
.landing-page .feat-faq-a p { margin: 0 0 10px; }
.landing-page .feat-faq-a p:last-child { margin-bottom: 0; }
.landing-page .feat-faq-a code {
  font-family: var(--font-mono);
  font-size: 12.5px;
  background: var(--bg-elev-2);
  padding: 1px 6px;
  border-radius: 4px;
}

/* Close / CTA band */
.landing-page .feat-close {
  padding: 70px 0 100px;
}
.landing-page .feat-close-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  padding: 40px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 14px;
}
.landing-page .feat-close-card h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 28px;
  letter-spacing: -0.02em;
  margin: 0;
}
.landing-page .feat-close-card p {
  color: var(--ink-dim);
  font-size: 14.5px;
  margin-top: 8px;
}
.landing-page .feat-close-ctas {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* Related features panel */
.landing-page .feat-related {
  padding: 60px 0 100px;
  background: var(--bg-elev);
  border-top: 1px solid var(--line);
}
.landing-page .feat-related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.landing-page .feat-related-card {
  padding: 24px 26px;
  border-radius: 14px;
  background: var(--bg);
  border: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  transition: transform 0.18s ease, border-color 0.18s ease;
}
.landing-page .feat-related-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
}
.landing-page .feat-related-card .eyebrow {
  display: block;
  margin-bottom: 8px;
  color: var(--accent);
}
.landing-page .feat-related-card h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 20px;
  letter-spacing: -0.015em;
  margin: 0 0 8px;
}
.landing-page .feat-related-card p {
  color: var(--ink-dim);
  font-size: 14px;
  line-height: 1.55;
  margin: 0;
}

/* Index grid */
.landing-page .feat-index { padding: 30px 0 90px; }
.landing-page .feat-index-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.landing-page .feat-index-card {
  padding: 28px 30px;
  border-radius: 14px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  transition: transform 0.18s ease, border-color 0.18s ease;
  display: flex;
  flex-direction: column;
}
.landing-page .feat-index-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
}
.landing-page .feat-index-card .eyebrow {
  color: var(--accent);
  margin-bottom: 10px;
}
.landing-page .feat-index-card h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 22px;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0 0 12px;
}
.landing-page .feat-index-card p {
  color: var(--ink-dim);
  font-size: 14px;
  line-height: 1.6;
  margin: 0 0 18px;
  flex: 1;
}
.landing-page .feat-index-card .feat-index-cta {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 6px;
}

@media (max-width: 960px) {
  .landing-page .feat-how-grid,
  .landing-page .feat-benefits-grid,
  .landing-page .feat-related-grid,
  .landing-page .feat-index-grid { grid-template-columns: 1fr 1fr; }
  .landing-page .feat-uses-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .landing-page .feat-hero { padding: 60px 0 40px; }
  .landing-page .feat-how-grid,
  .landing-page .feat-benefits-grid,
  .landing-page .feat-related-grid,
  .landing-page .feat-index-grid { grid-template-columns: 1fr; }
  .landing-page .feat-close-card { padding: 28px 24px; }
}