/* -------------------------------------------------------------
   Alternative & Replacement Parts page (route /alternative-replacement-parts/)
   Scoped to this page only. Every class is prefixed `alt-`.
   Loaded by functions.php from assets/css/pages/<slug>.css.
------------------------------------------------------------- */

.page-alternative-replacement-parts {
  background-color: #ffffff;
}

/* Figures inside this page keep no default outer margin. */
.page-alternative-replacement-parts .alt-figure {
  margin: 0;
}

/* -------------------------------------------------------------
   01 Hero
------------------------------------------------------------- */
.alt-hero {
  padding-top: 72px;
  padding-bottom: 64px;
}

.alt-hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}

.alt-hero .page-hero-lead {
  margin-bottom: 28px;
}

.alt-hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.alt-hero-note {
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--color-muted);
  max-width: 560px;
  margin-bottom: 0;
  padding-left: 14px;
  border-left: 2px solid var(--color-copper);
}

.alt-hero-note a {
  color: var(--color-accent);
  font-weight: 600;
}

/* -------------------------------------------------------------
   02 Why buyers look for an alternative source
------------------------------------------------------------- */
.alt-why {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  background-color: #ffffff;
}

.alt-reason-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.alt-reason-card {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
}

.alt-reason-code {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-copper);
  margin-bottom: 12px;
}

.alt-reason-title {
  font-size: 1.0625rem;
  line-height: 1.35;
  margin-bottom: 10px;
}

.alt-reason-text {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-body);
  margin-bottom: 0;
}

/* -------------------------------------------------------------
   03 Product types suitable for replacement
------------------------------------------------------------- */
.alt-types {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  background-color: var(--color-surface-soft);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.alt-type-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.alt-type-card {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 26px 24px;
}

.alt-type-title {
  font-size: 1.0625rem;
  margin-bottom: 8px;
}

.alt-type-text {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-body);
  margin-bottom: 0;
}

.alt-types-note {
  margin-top: 28px;
  margin-bottom: 0;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-body);
  max-width: 800px;
  padding-left: 16px;
  border-left: 2px solid var(--color-accent);
}

/* -------------------------------------------------------------
   04 Compatibility confirmation
------------------------------------------------------------- */
.alt-compat {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  background-color: #ffffff;
}

.alt-ref-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.alt-ref-card {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-top: 2px solid var(--color-accent);
  border-radius: var(--radius-card);
  padding: 26px 24px;
}

.alt-ref-code {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  background-color: rgba(23, 110, 166, 0.08);
  padding: 4px 9px;
  border-radius: 4px;
  margin-bottom: 14px;
}

.alt-ref-title {
  font-size: 1.0625rem;
  margin-bottom: 8px;
}

.alt-ref-text {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-body);
  margin-bottom: 0;
}

.alt-verify {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background-color: var(--color-surface-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 40px;
}

.alt-verify-title {
  font-size: 1.5rem;
  line-height: 1.3;
  margin-bottom: 14px;
}

.alt-verify-text {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-body);
  margin-bottom: 20px;
}

.alt-verify-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--color-border);
  padding-top: 18px;
}

.alt-verify-list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--color-body);
  margin-bottom: 10px;
}

.alt-verify-list li:last-child {
  margin-bottom: 0;
}

.alt-verify-list li::before {
  content: "\2014";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

/* -------------------------------------------------------------
   05 Small-batch validation & pilot workflow
------------------------------------------------------------- */
.alt-pilot {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  background-color: var(--color-surface-soft);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.alt-pilot-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.alt-step-card {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-top: 2px solid var(--color-accent);
  border-radius: var(--radius-card);
  padding: 28px 24px;
}

.alt-step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.alt-step-title {
  font-size: 1.0625rem;
  margin-bottom: 8px;
}

.alt-step-text {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-body);
  margin-bottom: 0;
}

.alt-pilot-note {
  margin-top: 32px;
  margin-bottom: 0;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--color-body);
  max-width: 820px;
  padding-left: 16px;
  border-left: 2px solid var(--color-accent);
}

/* -------------------------------------------------------------
   06 Manufacturing & QC evidence
------------------------------------------------------------- */
.alt-evidence {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  background-color: #ffffff;
}

.alt-evidence-layout {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 40px;
}

.alt-evidence-content .spec-list {
  margin-bottom: 24px;
}

.alt-evidence-note {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-muted);
  margin-bottom: 0;
  max-width: 520px;
}

.alt-qc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.alt-qc-card {
  background-color: var(--color-surface-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 26px 24px;
}

.alt-qc-code {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  margin-bottom: 12px;
}

.alt-qc-title {
  font-size: 1.0625rem;
  margin-bottom: 8px;
}

.alt-qc-text {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-body);
  margin-bottom: 0;
}

/* -------------------------------------------------------------
   07 Submitting a reference
------------------------------------------------------------- */
.alt-submit {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  background-color: var(--color-surface-soft);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.alt-submit-layout {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 40px;
  align-items: start;
}

.alt-submit-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.alt-route-card {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 28px 26px;
}

.alt-route-code {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.alt-route-title {
  font-size: 1.125rem;
  line-height: 1.35;
  margin-bottom: 8px;
}

.alt-route-text {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-body);
  margin-bottom: 0;
}

.alt-submit-note {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-body);
  margin-bottom: 0;
  padding-left: 16px;
  border-left: 2px solid var(--color-border);
}

.alt-submit-note a {
  font-weight: 600;
}

.alt-submit-side {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.alt-submit-panel {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 28px 26px;
}

.alt-submit-panel-title {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-copper);
  margin-bottom: 14px;
}

.alt-submit-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.alt-submit-list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--color-body);
  margin-bottom: 10px;
}

.alt-submit-list li:last-child {
  margin-bottom: 0;
}

.alt-submit-list li::before {
  content: "\2014";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

/* -------------------------------------------------------------
   08 Disclaimer
------------------------------------------------------------- */
.alt-disclaimer {
  padding-top: 64px;
  padding-bottom: 64px;
  background-color: #ffffff;
}

.alt-disclaimer-box {
  background-color: var(--color-surface-gray);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 40px;
}

.alt-disclaimer-title {
  font-size: 1.375rem;
  line-height: 1.3;
  margin-bottom: 16px;
}

.alt-disclaimer-text {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-body);
  max-width: 900px;
  margin-bottom: 14px;
}

.alt-disclaimer-text:last-child {
  margin-bottom: 0;
}

/* -------------------------------------------------------------
   09 RFQ CTA (single dark graphite band)
------------------------------------------------------------- */
.alt-cta {
  background-color: var(--color-ink);
  padding-top: 80px;
  padding-bottom: 80px;
  color: #ffffff;
}

.alt-cta-inner {
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.alt-cta-title {
  color: #ffffff;
  font-size: clamp(1.875rem, 3.5vw, 2.5rem);
  line-height: 1.15;
  margin-bottom: 18px;
}

.alt-cta-lead {
  color: #b5c3cb;
  font-size: 1.0625rem;
  line-height: 1.7;
  margin-bottom: 32px;
}

.alt-cta-actions {
  display: flex;
  gap: 20px;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
}

.alt-cta-link {
  color: #ffffff;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: underline;
}

.alt-cta-link:hover {
  color: var(--color-accent-sky);
}

/* -------------------------------------------------------------
   10 Responsive
------------------------------------------------------------- */
@media (max-width: 1100px) {
  .alt-hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .alt-reason-grid,
  .alt-type-grid,
  .alt-ref-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .alt-pilot-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .alt-verify,
  .alt-evidence-layout,
  .alt-submit-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .alt-evidence-layout .alt-figure {
    max-width: 640px;
  }
}

@media (max-width: 768px) {
  .alt-hero {
    padding-top: 48px;
    padding-bottom: 40px;
  }

  .alt-reason-grid,
  .alt-type-grid,
  .alt-ref-grid,
  .alt-pilot-grid,
  .alt-qc-grid {
    grid-template-columns: 1fr;
  }

  .alt-why,
  .alt-types,
  .alt-compat,
  .alt-pilot,
  .alt-evidence,
  .alt-submit {
    padding-top: var(--space-section-mobile);
    padding-bottom: var(--space-section-mobile);
  }

  .alt-verify,
  .alt-disclaimer-box {
    padding: 28px 22px;
  }

  .alt-disclaimer {
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .alt-cta {
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .alt-hero-actions,
  .alt-cta-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .alt-hero-actions .btn,
  .alt-cta-actions .btn {
    width: 100%;
  }

  .alt-cta-link {
    text-align: center;
  }
}

@media (max-width: 480px) {
  .alt-reason-card,
  .alt-type-card,
  .alt-ref-card,
  .alt-step-card,
  .alt-qc-card,
  .alt-route-card,
  .alt-submit-panel {
    padding: 22px 18px;
  }

  .alt-verify-title,
  .alt-disclaimer-title {
    font-size: 1.25rem;
  }
}