/* ==========================================================================
   WARMZUNO — informational pages (about / oem-odm / certifications /
   solutions / faq / contact). Shared page-level styles only.

   Rules: no new colors, radii or shadows — every token comes from the
   custom properties defined in style.css. Components reUse style.css
   primitives (.bezel, .cap-card, .faq-item, .spec-table, .battery-card,
   .timeline, .cta-grid, .quote-form) and add only page-level layout.
   ========================================================================== */

/* ---- page hero (below the breadcrumb, above the first section) --------- */
.page-hero { padding-block: var(--space-6) var(--space-9); }
.page-title {
  margin-top: var(--space-5);
  font-size: clamp(2.5rem, 5.2vw, 4.4rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.05em;
}
.page-title em { font-style: normal; color: var(--color-accent); }
.page-lead {
  margin-top: var(--space-6);
  max-width: 58ch;
  font-size: 1.0625rem;
  color: var(--color-ink-soft);
}
.page-hero .hero-proof { max-width: 720px; }

/* ---- why-choose-us: double-bezel card grid ------------------------------ */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--layout-gap);
}
.why-bezel {
  height: 100%;
  transition: transform var(--dur-mid) var(--ease-spring),
    box-shadow var(--dur-mid) var(--ease-spring);
}
.why-bezel:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lift), var(--shadow-inset);
}
.why-card { padding: var(--space-6) var(--space-5); }
.why-num {
  font-size: var(--fs-micro);
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--color-accent);
}
.why-title { margin-top: var(--space-3); font-size: 1.1rem; font-weight: 800; letter-spacing: -0.03em; }
.why-desc { margin-top: var(--space-3); font-size: var(--fs-small); color: var(--color-ink-soft); }

/* ---- brand story --------------------------------------------------------- */
.story-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
.story-copy p { color: var(--color-ink-soft); }
.story-copy p + p { margin-top: var(--space-5); }
.story-mission { margin-top: var(--space-7); }
.story-mission .bezel-core { padding: var(--space-6); }
.story-mission-label {
  font-size: var(--fs-micro);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.story-mission-text {
  margin-top: var(--space-3);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.5;
}

/* ---- key information table ----------------------------------------------- */
.keyinfo-wrap { max-width: 860px; }
.keyinfo-note {
  margin-top: var(--space-4);
  font-size: var(--fs-micro);
  color: var(--color-muted);
}

/* ---- vertical milestone timeline (about) ---------------------------------- */
.vtimeline {
  position: relative;
  max-width: 820px;
  margin-inline: auto;
}
.vtimeline::before {
  content: "";
  position: absolute;
  left: 0.9rem;
  top: 0.6rem;
  bottom: 0.6rem;
  width: 2px;
  background: var(--color-hairline-strong);
}
.vt-progress {
  position: absolute;
  left: 0.9rem;
  top: 0.6rem;
  width: 2px;
  height: 0;
  background: var(--color-accent);
  transition: height var(--dur-slow) var(--ease-soft);
}
.vt-list { display: grid; }
.vt-item { position: relative; padding-left: 3.2rem; padding-bottom: var(--space-6); }
.vt-item:last-child { padding-bottom: 0; }
.vt-dot {
  position: absolute;
  left: 0;
  top: 0.4rem;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  background: var(--color-accent-wash);
  box-shadow: inset 0 0 0 1.5px var(--color-accent), var(--shadow-inset);
  display: grid;
  place-items: center;
}
.vt-dot::after {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-accent);
}
.vt-card { transition: transform var(--dur-mid) var(--ease-spring), box-shadow var(--dur-mid) var(--ease-spring); }
.vt-card:hover { transform: translateX(4px); }
.vt-core { padding: var(--space-5) var(--space-6); }
.vt-year {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-accent-deep);
}
.vt-text { margin-top: var(--space-2); font-size: var(--fs-small); color: var(--color-ink-soft); }

/* Reveal-on-scroll for timeline items (transform + opacity only).
   Gated behind the .js class so a no-JS load never hides content. */
.js .vt-item {
  opacity: 0;
  transform: translate3d(0, 28px, 0);
  transition: opacity var(--dur-slow) var(--ease-soft),
    transform var(--dur-slow) var(--ease-soft);
}
.js .vt-item.is-visible { opacity: 1; transform: translate3d(0, 0, 0); }

/* ---- OEM page: process chips on the shared .timeline ---------------------- */
.proc-chip {
  display: inline-block;
  margin-top: var(--space-3);
  padding: 0.28rem 0.75rem;
  border-radius: var(--radius-pill);
  background: var(--color-accent-wash);
  color: var(--color-accent-deep);
  font-size: var(--fs-micro);
  font-weight: 700;
  letter-spacing: 0.06em;
}
.js .timeline-step {
  opacity: 0;
  transform: translate3d(0, 24px, 0);
  transition: opacity var(--dur-slow) var(--ease-soft),
    transform var(--dur-slow) var(--ease-soft);
}
.js .timeline-step.is-visible { opacity: 1; transform: translate3d(0, 0, 0); }

/* ---- customisation dimensions (5 cards) ----------------------------------- */
.dim-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--layout-gap);
}
.dim-card {
  height: 100%;
  padding: var(--space-6) var(--space-5);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-ambient), var(--shadow-inset);
  transition: transform var(--dur-mid) var(--ease-spring),
    box-shadow var(--dur-mid) var(--ease-spring);
}
.dim-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lift), var(--shadow-inset); }
.dim-icon {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius-sm);
  background: var(--color-accent-wash);
  color: var(--color-accent-deep);
  display: grid;
  place-items: center;
}
.dim-icon svg { width: 22px; height: 22px; }
.dim-title { margin-top: var(--space-4); font-size: 1rem; font-weight: 800; letter-spacing: -0.02em; }
.dim-desc { margin-top: 0.4rem; font-size: var(--fs-small); color: var(--color-ink-soft); }
.dim-moq {
  margin-top: var(--space-4);
  font-size: var(--fs-micro);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-deep);
}

/* ---- data tables (MOQ tiers / lead times / key info) ---------------------- */
.table-shell {
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-ambient), var(--shadow-inset);
  overflow: hidden;
}
.data-table { width: 100%; border-collapse: collapse; font-size: var(--fs-small); }
.data-table th,
.data-table td {
  padding: var(--space-4) var(--space-5);
  text-align: left;
  vertical-align: top;
  overflow-wrap: anywhere;
}
.data-table thead th {
  background: var(--color-bg-alt);
  font-size: var(--fs-micro);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
}
.data-table tbody tr + tr { border-top: 1px solid var(--color-hairline); }
.data-table td { color: var(--color-ink); font-weight: 600; }
.data-table td.strong { font-weight: 800; white-space: nowrap; }
.data-table td.soft { color: var(--color-ink-soft); font-weight: 500; }
.table-note {
  margin-top: var(--space-4);
  font-size: var(--fs-micro);
  color: var(--color-muted);
}

/* ---- certification type tiles --------------------------------------------- */
.cert8-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--layout-gap);
}
.cert8-card {
  padding: var(--space-5);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-ambient), var(--shadow-inset);
  transition: transform var(--dur-mid) var(--ease-spring);
}
.cert8-card:hover { transform: translateY(-4px); }
.cert8-mark { font-size: 1.05rem; font-weight: 800; letter-spacing: -0.03em; color: var(--color-accent-deep); }
.cert8-scope {
  margin-top: 0.25rem;
  font-size: var(--fs-micro);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.cert8-desc { margin-top: var(--space-3); font-size: var(--fs-small); color: var(--color-ink-soft); }

/* ---- numbered how-to-verify steps ------------------------------------------ */
.steps-list { display: grid; gap: var(--space-5); max-width: 720px; counter-reset: step; }
.steps-list li {
  counter-increment: step;
  position: relative;
  padding-left: 3.2rem;
  font-size: 1rem;
  color: var(--color-ink-soft);
}
.steps-list li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: -0.1rem;
  width: 2.3rem;
  height: 2.3rem;
  border-radius: 50%;
  background: var(--color-accent-wash);
  color: var(--color-accent-deep);
  font-size: 0.78rem;
  font-weight: 800;
  display: grid;
  place-items: center;
}
.steps-list li strong { color: var(--color-ink); }

/* ---- highlighted demo notice ------------------------------------------------ */
.notice-box {
  max-width: 860px;
  padding: var(--space-5) var(--space-6);
  border-radius: var(--radius-md);
  background: var(--color-accent-wash);
  box-shadow: inset 0 0 0 1px var(--color-hairline);
  font-size: var(--fs-small);
  color: var(--color-ink-soft);
}
.notice-box strong { color: var(--color-accent-deep); }

/* ---- scenario blocks (solutions) -------------------------------------------- */
.scene-list { display: grid; }
.scene {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  align-items: start;
  padding-block: var(--space-8);
}
.scene + .scene { border-top: 1px solid var(--color-hairline); }
.scene-index {
  font-size: var(--fs-micro);
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--color-accent);
}
.scene-name {
  margin-top: var(--space-3);
  font-size: clamp(1.45rem, 2.4vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.035em;
}
.scene-label {
  margin-top: var(--space-5);
  font-size: var(--fs-micro);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
}
.scene-pain { margin-top: var(--space-2); font-size: 1rem; color: var(--color-ink-soft); }
.scene-points { margin-top: var(--space-2); }
.scene-links {
  margin-top: var(--space-6);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 2.75rem;
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--color-accent-deep);
}
.text-link svg { width: 14px; height: 14px; transition: transform var(--dur-fast) var(--ease-spring); }
.text-link:hover svg { transform: translate(3px, -3px); }

/* ---- FAQ groups (accordion items come from style.css) ----------------------- */
.faq-group { max-width: 860px; margin-inline: auto; }
.faq-group + .faq-group { margin-top: var(--space-8); }
.faq-group-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.faq-count {
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-pill);
  background: var(--color-accent-wash);
  color: var(--color-accent-deep);
  font-size: var(--fs-micro);
  font-weight: 700;
}

/* ---- contact page ------------------------------------------------------------ */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--layout-gap);
  margin-top: var(--space-7);
}
.contact-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-ambient), var(--shadow-inset);
  transition: transform var(--dur-mid) var(--ease-spring);
}
.contact-card:hover { transform: translateY(-4px); }
.contact-label {
  font-size: var(--fs-micro);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
}
.contact-value { margin-top: 0.25rem; font-weight: 700; font-size: 0.95rem; overflow-wrap: anywhere; }
.contact-note { margin-top: 0.2rem; font-size: var(--fs-micro); color: var(--color-muted); }
.sla-line {
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-hairline);
  font-weight: 700;
  font-size: 0.95rem;
}
.privacy-note { margin-top: var(--space-5); font-size: var(--fs-small); color: var(--color-muted); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1080px) {
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .dim-grid { grid-template-columns: repeat(3, 1fr); }
  .cert8-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .story-grid { grid-template-columns: 1fr; }
  .scene { grid-template-columns: 1fr; gap: var(--space-5); }
}

@media (max-width: 768px) {
  .page-hero { padding-block: var(--space-4) var(--space-7); }
  .page-title { font-size: clamp(2.3rem, 10vw, 3.4rem); }
  .why-grid { grid-template-columns: 1fr; }
  .dim-grid { grid-template-columns: 1fr; }
  .cert8-grid { grid-template-columns: 1fr; }
  .contact-cards { grid-template-columns: 1fr; }
  .table-shell { overflow-x: auto; }
  .data-table { min-width: 560px; }
  .steps-list li { padding-left: 3rem; }
  .scene { padding-block: var(--space-7); }
  .scene-links { flex-direction: column; align-items: stretch; }
  .scene-links .btn { justify-content: space-between; min-height: 3rem; }
  .faq-group-title { font-size: 1.05rem; }
}