/* =========================================================
   THREADLINE — page-specific styles
   (features / pricing / about / guide)
   ========================================================= */

/* ============ features page ============ */
.feature-block{
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center;
  padding: 88px 0;
  border-bottom: 1px solid var(--line);
}
.feature-block:last-of-type{ border-bottom: none; }
.feature-block.flip .feature-media{ order: 2; }
.feature-media{
  border-radius: var(--radius-lg); overflow: clip; border: 1px solid var(--line);
  box-shadow: var(--shadow-lg); background: var(--white);
}
.feature-media img{ width: 100%; display: block; }
.feature-num{ font-family: var(--display); font-size: 15px; color: var(--coral-text); margin-bottom: 6px; display: block; }
.feature-copy h2{ font-size: clamp(26px, 3.2vw, 36px); margin-top: 10px; }
.feature-copy > p{ margin-top: 16px; color: var(--ink-dim); font-size: 16.5px; max-width: 46ch; }
.feature-checks{ display: flex; flex-direction: column; gap: 14px; margin-top: 26px; }
.feature-check{ display: flex; gap: 12px; align-items: flex-start; }
.feature-check svg{ width: 20px; height: 20px; flex: none; color: var(--coral-deep); margin-top: 1px; }
.feature-check span{ font-size: 15px; color: var(--ink-2); }

/* ============ pricing page ============ */
.billing-toggle{
  display: flex; align-items: center; justify-content: center; gap: 16px;
  margin: 0 auto 56px;
}
.billing-toggle span{ font-size: 14.5px; font-weight: 600; color: var(--ink-faint); transition: color .2s ease; }
.billing-toggle span.active{ color: var(--ink); }
.toggle-switch{
  width: 54px; height: 30px; border-radius: 999px; background: var(--ink);
  border: none; cursor: pointer; position: relative; flex: none; padding: 0;
}
.toggle-switch::after{
  content: ""; position: absolute; top: 3px; left: 3px;
  width: 24px; height: 24px; border-radius: 50%; background: var(--white);
  transition: transform .3s cubic-bezier(.3,1.4,.4,1);
}
.toggle-switch.is-annual::after{ transform: translateX(24px); }
.save-badge{
  font-size: 11.5px; font-weight: 700; color: var(--coral-text);
  background: var(--coral-tint); border-radius: 999px; padding: 3px 10px;
}

.pricing-grid{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.price-card{
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 38px 32px; display: flex; flex-direction: column;
  transition: transform .35s ease, box-shadow .3s ease;
}
.price-card:hover{ transform: translateY(-6px); box-shadow: var(--shadow-md); }
.price-card.is-popular{
  background: var(--ink); color: var(--white);
  border-color: var(--ink); box-shadow: var(--shadow-lg);
  position: relative; transform: scale(1.03);
}
.price-card.is-popular:hover{ transform: scale(1.03) translateY(-6px); }
.popular-badge{
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--coral); color: var(--white); font-size: 11.5px; font-weight: 700;
  letter-spacing: .04em; text-transform: uppercase; padding: 6px 16px; border-radius: 999px;
}
.price-tier{ font-family: var(--display); font-size: 22px; font-weight: 600; }
.price-card.is-popular .price-tier{ color: var(--white); }
.price-desc{ font-size: 14px; color: var(--ink-dim); margin-top: 8px; min-height: 40px; }
.price-card.is-popular .price-desc{ color: #b6bbd6; }
.price-amount{ display: flex; align-items: baseline; gap: 6px; margin-top: 24px; }
.price-num{ font-family: var(--display); font-size: 46px; font-weight: 600; line-height: 1; }
.price-per{ font-size: 14px; color: var(--ink-faint); }
.price-card.is-popular .price-per{ color: #9aa0bc; }
.price-billed{ font-size: 12.5px; color: var(--ink-faint); margin-top: 8px; min-height: 16px; }
.price-card.is-popular .price-billed{ color: #9aa0bc; }
.price-card .btn{ margin-top: 26px; }
.price-features{ display: flex; flex-direction: column; gap: 13px; margin-top: 30px; padding-top: 26px; border-top: 1px solid var(--line); }
.price-card.is-popular .price-features{ border-color: #3a4160; }
.price-feature{ display: flex; gap: 10px; align-items: flex-start; font-size: 14px; }
.price-feature svg{ width: 17px; height: 17px; flex: none; color: var(--coral-deep); margin-top: 2px; }
.price-card.is-popular .price-feature svg{ color: var(--coral); }

.price-amount .price-yearly{ display: none; }
.is-annual-mode .price-monthly{ display: none; }
.is-annual-mode .price-yearly{ display: inline; }
.is-annual-mode .price-billed .billed-monthly{ display: none; }
.price-billed .billed-yearly{ display: none; }
.is-annual-mode .price-billed .billed-yearly{ display: inline; }

/* ============ FAQ ============ */
.faq-list{ max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item{
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 6px 26px;
}
.faq-item summary{
  cursor: pointer; list-style: none; padding: 20px 0;
  font-weight: 600; font-size: 16px; color: var(--ink);
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.faq-item summary::-webkit-details-marker{ display: none; }
.faq-icon{
  width: 26px; height: 26px; border-radius: 50%; background: var(--coral-tint); color: var(--coral-deep);
  display: flex; align-items: center; justify-content: center; flex: none;
  transition: transform .3s ease;
}
.faq-item[open] .faq-icon{ transform: rotate(45deg); }
.faq-answer{ padding: 0 0 22px; color: var(--ink-dim); font-size: 15px; max-width: 62ch; }

/* ============ about page ============ */
.story-grid{ display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.story-media{ border-radius: var(--radius-lg); overflow: clip; border: 1px solid var(--line); box-shadow: var(--shadow-lg); }
.story-media img{ width: 100%; display: block; }
.story-copy p{ color: var(--ink-dim); font-size: 16.5px; margin-bottom: 18px; }
.story-copy p:last-child{ margin-bottom: 0; }
.pull-year{ font-family: var(--display); font-size: 15px; color: var(--coral-text); margin-bottom: 14px; display: block; }

.values-grid{ display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.value-card{ padding: 30px 26px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); transition: transform .4s cubic-bezier(.2,.8,.2,1.1), box-shadow .3s ease; }
.value-card:hover{ transform: translateY(-6px); box-shadow: var(--shadow-md); }
.value-card .value-mark{ width: 44px; height: 44px; border-radius: 13px; background: var(--coral-tint); color: var(--coral-deep); display: flex; align-items: center; justify-content: center; margin-bottom: 18px; transition: transform .45s cubic-bezier(.2,.7,.15,1.4), background .3s ease, color .3s ease; }
.value-card:hover .value-mark{ transform: scale(1.1) rotate(-4deg); background: var(--coral); color: var(--white); }
.value-card .value-mark svg{ width: 22px; height: 22px; }
.value-card h4{ font-size: 16.5px; margin-bottom: 8px; }
.value-card p{ font-size: 14.5px; color: var(--ink-dim); }

.team-grid{ display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.team-photo{ position: relative; border-radius: var(--radius-lg); overflow: clip; margin-bottom: 20px; box-shadow: var(--shadow-sm); border: 1px solid var(--line); }
.team-photo img{ width: 100%; aspect-ratio: 4/5; object-fit: cover; transition: transform .5s ease; }
.team-card:hover .team-photo img{ transform: scale(1.03); }
.team-card h4{ font-size: 19px; }
.team-role{ font-weight: 600; font-size: 13px; color: var(--coral-text); margin-top: 4px; display: block; }
.team-card p{ margin-top: 12px; color: var(--ink-dim); font-size: 14.5px; }

/* ============ guide page ============ */
.guide-body{ max-width: 760px; margin: 0 auto; }
.guide-body h2{ font-size: 25px; margin-top: 52px; margin-bottom: 16px; }
.guide-body h2:first-child{ margin-top: 0; }
.guide-body p{ color: var(--ink-dim); font-size: 16.5px; margin-bottom: 16px; }
.guide-body ul{ margin: 0 0 16px; padding-left: 22px; list-style: disc; color: var(--ink-dim); }
.guide-body li{ margin-bottom: 8px; font-size: 16px; }
.guide-body code{
  background: var(--cream-2); border: 1px solid var(--line); border-radius: 5px;
  padding: 2px 7px; font-size: 14px; color: var(--coral-text); font-family: "IBM Plex Mono", monospace;
}
.guide-back{
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 40px;
  font-weight: 600; font-size: 13.5px; color: var(--ink-dim);
}
.guide-back:hover{ color: var(--coral-text); }
.guide-back svg{ width: 14px; height: 14px; transform: rotate(180deg); }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1080px){
  .feature-block{ grid-template-columns: 1fr; gap: 40px; padding: 64px 0; }
  .feature-block.flip .feature-media{ order: 0; }
  .pricing-grid{ grid-template-columns: 1fr; max-width: 440px; margin: 0 auto; }
  .price-card.is-popular{ transform: none; order: -1; }
  .price-card.is-popular:hover{ transform: translateY(-6px); }
  .values-grid{ grid-template-columns: repeat(2, 1fr); }
  .team-grid{ grid-template-columns: repeat(2, 1fr); }
  .story-grid{ grid-template-columns: 1fr; gap: 44px; }
}

@media (max-width: 720px){
  .values-grid{ grid-template-columns: 1fr; }
  .team-grid{ grid-template-columns: 1fr; max-width: 360px; margin: 0 auto; }
  .faq-item summary{ font-size: 15px; }
  .billing-toggle{ margin-bottom: 40px; }
}

@media (max-width: 480px){
  .price-card{ padding: 30px 24px; }
  .faq-item{ padding: 4px 18px; }
}