/* ============================================================
   page-upgrade-production-line.css
   Solutions page — Upgrade Your Production Line
   Loaded automatically via functions.php
   All values use CSS variables from Global.css — no hardcoded values
   ============================================================ */

/* ============================================================
   S1 — HERO
   ============================================================ */

.upg-hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.upg-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.upg-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  display: block;
}

.upg-hero__overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 15%, rgba(215,25,32,.28), transparent 38%),
    radial-gradient(circle at 85% 25%, rgba(255,255,255,.04), transparent 34%),
    linear-gradient(135deg, rgba(11,13,16,.92) 0%, rgba(23,26,31,.82) 55%, rgba(36,39,46,.75) 100%);
}

.upg-hero__inner {
  position: relative;
  z-index: 1;
  padding: var(--sp-8) var(--sp-5);
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
}

.upg-hero__badge {
  display: inline-block;
  background: rgba(215,25,32,.18);
  border: 1px solid rgba(215,25,32,.35);
  color: var(--brand-mid);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 5px var(--sp-2);
  border-radius: 100px;
  font-family: 'DM Mono', monospace;
  margin-bottom: var(--sp-2);
  width: fit-content;
}

.upg-hero__title {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: #fff;
  line-height: 1.12;
  margin: 0 0 var(--sp-3);
  max-width: 720px;
}

.upg-hero__title em {
  font-style: normal;
  color: rgba(255,255,255,.45);
}

.upg-hero__subtitle {
  font-size: var(--text-md);
  color: rgba(255,255,255,.65);
  line-height: 1.7;
  max-width: 600px;
  margin: 0;
  text-wrap: pretty;
}

/* Trust bar */
.upg-hero__trust {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
}

.upg-hero__trust-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.upg-hero__trust-num {
  font-family: 'DM Mono', monospace;
  font-size: var(--text-xl);
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

.upg-hero__trust-unit {
  font-size: var(--text-base);
  color: var(--brand-mid);
}

.upg-hero__trust-label {
  font-size: var(--text-xs);
  color: rgba(255,255,255,.45);
  letter-spacing: .06em;
  text-transform: uppercase;
}

.upg-hero__trust-divider {
  width: 1px;
  height: 36px;
  background: rgba(255,255,255,.12);
  flex-shrink: 0;
}

/* CTA group */
.upg-hero__cta-group {
  display: flex;
  gap: var(--sp-2);
  flex-wrap: wrap;
}

/* ============================================================
   S2 — ROUTE SELECTOR
   ============================================================ */

.upg-routes {
  padding: var(--sp-7) var(--sp-5);
}

.upg-routes__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
  margin-top: var(--sp-5);
}

.upg-routes__card {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--r-lg);
  padding: var(--sp-5);
  text-decoration: none;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  box-shadow: var(--shadow-card);
}

.upg-routes__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
  border-color: var(--brand);
}

.upg-routes__card:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

.upg-routes__card-icon {
  width: 52px;
  height: 52px;
  background: var(--brand-tint);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand);
  flex-shrink: 0;
}

.upg-routes__card-tag {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--brand);
  font-family: 'DM Mono', monospace;
}

.upg-routes__card-title {
  font-size: var(--text-lg);
  font-weight: 800;
  color: var(--gray-800);
  line-height: 1.3;
  margin: 0;
}

.upg-routes__card-desc {
  font-size: var(--text-base);
  color: var(--gray-600);
  line-height: 1.7;
  margin: 0;
}

.upg-routes__card-signals {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
}

.upg-routes__card-signals li {
  font-size: var(--text-sm);
  color: var(--gray-600);
  padding-left: var(--sp-3);
  position: relative;
  line-height: 1.5;
}

.upg-routes__card-signals li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  opacity: .5;
}

.upg-routes__card-cta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--brand);
  margin-top: auto;
  padding-top: var(--sp-2);
  border-top: 1px solid var(--gray-100);
}

.upg-routes__card-cta svg {
  transition: transform .2s ease;
}

.upg-routes__card:hover .upg-routes__card-cta svg {
  transform: translateY(3px);
}

/* ============================================================
   S3 — ROUTE A: CAPACITY UPGRADE
   ============================================================ */

.upg-capacity {
  padding: var(--sp-7) var(--sp-5);
}

.upg-capacity__sub-h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: rgba(255,255,255,.90);
  margin: 0 0 var(--sp-4);
}

/* Diagnostic cards */
.upg-capacity__diag {
  margin-top: var(--sp-6);
}

.upg-capacity__diag-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
}

.upg-capacity__diag-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: var(--r-lg);
  padding: var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  transition: background .25s ease, border-color .25s ease;
}

.upg-capacity__diag-card:hover {
  background: rgba(255,255,255,.09);
  border-color: rgba(215,25,32,.35);
}

.upg-capacity__diag-icon {
  width: 44px;
  height: 44px;
  background: rgba(215,25,32,.15);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-mid);
  flex-shrink: 0;
}

.upg-capacity__diag-card strong {
  font-size: var(--text-base);
  font-weight: 700;
  color: rgba(255,255,255,.90);
  line-height: 1.3;
}

.upg-capacity__diag-card p {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.55);
  line-height: 1.65;
  margin: 0;
  flex: 1;
}

.upg-capacity__diag-fix {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--brand-mid);
  font-family: 'DM Mono', monospace;
  background: rgba(215,25,32,.12);
  border: 1px solid rgba(215,25,32,.22);
  border-radius: var(--r-sm);
  padding: 6px var(--sp-2);
  line-height: 1.4;
  margin-top: auto;
}

/* Upgrade path table */
.upg-capacity__path {
  margin-top: var(--sp-7);
}

.upg-capacity__table-wrap {
  overflow-x: auto;
  border-radius: var(--r-lg);
  border: 1px solid rgba(255,255,255,.10);
}

.upg-capacity__table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  min-width: 680px;
}

.upg-capacity__table thead tr {
  background: rgba(255,255,255,.08);
}

.upg-capacity__table th {
  padding: var(--sp-2) var(--sp-3);
  text-align: left;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.50);
  white-space: nowrap;
}

.upg-capacity__table td {
  padding: var(--sp-2) var(--sp-3);
  color: rgba(255,255,255,.75);
  border-top: 1px solid rgba(255,255,255,.07);
  vertical-align: top;
  line-height: 1.55;
}

.upg-capacity__table tbody tr:hover td {
  background: rgba(255,255,255,.04);
}

.upg-capacity__table-output {
  font-family: 'DM Mono', monospace;
  font-weight: 600;
  color: rgba(255,255,255,.90) !important;
}

/* Override !important only for this specific semantic value display */
.upg-capacity__table-output span {
  display: block;
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: var(--text-xs);
  font-weight: 400;
  color: rgba(255,255,255,.40);
  margin-top: 3px;
}

.upg-capacity__table-note {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.40);
  margin-top: var(--sp-2);
  line-height: 1.6;
}

.upg-capacity__table-note .link-arrow {
  color: var(--brand-mid);
}

/* CTA row */
.upg-capacity__cta-row {
  display: flex;
  gap: var(--sp-2);
  flex-wrap: wrap;
  margin-top: var(--sp-6);
}

/* ============================================================
   S4 — ROUTE B: CAPABILITY UPGRADE
   ============================================================ */

.upg-capability {
  padding: var(--sp-7) var(--sp-5);
}

.upg-capability__sub-h3 {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--gray-800);
  margin: var(--sp-7) 0 var(--sp-4);
}

/* Layer upgrade path */
.upg-capability__path {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-top: var(--sp-5);
  overflow-x: auto;
  padding-bottom: var(--sp-2);
}

.upg-capability__step {
  flex: 1;
  min-width: 200px;
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--r-lg);
  padding: var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  box-shadow: var(--shadow-card);
  transition: transform .25s ease, box-shadow .25s ease;
}

.upg-capability__step:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
}

.upg-capability__step--highlight {
  border-color: var(--brand);
  background: var(--brand-subtle);
  position: relative;
}

.upg-capability__step-badge {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--gray-400);
  font-family: 'DM Mono', monospace;
  width: fit-content;
}

.upg-capability__step-badge--popular {
  color: var(--brand);
  background: var(--brand-tint);
  padding: 3px var(--sp-1);
  border-radius: 100px;
}

.upg-capability__step-layers {
  font-family: 'DM Mono', monospace;
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--gray-800);
  line-height: 1;
}

.upg-capability__step--highlight .upg-capability__step-layers {
  color: var(--brand);
}

.upg-capability__step-body strong {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--gray-800);
  display: block;
  margin-bottom: var(--sp-1);
}

.upg-capability__step-body p {
  font-size: var(--text-sm);
  color: var(--gray-600);
  line-height: 1.65;
  margin: 0 0 var(--sp-2);
}

.upg-capability__step-markets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--sp-2);
}

.upg-capability__step-markets span {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--gray-600);
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  border-radius: 100px;
  padding: 3px var(--sp-2);
}

.upg-capability__step--highlight .upg-capability__step-markets span {
  background: rgba(215,25,32,.06);
  border-color: rgba(215,25,32,.15);
  color: var(--brand-dark);
}

/* Arrow between steps */
.upg-capability__arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--sp-1);
  color: var(--gray-200);
  flex-shrink: 0;
  margin-top: 60px;
}

/* What changes grid */
.upg-capability__changes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-3);
}

.upg-capability__change-card {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--r-lg);
  padding: var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  box-shadow: var(--shadow-card);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.upg-capability__change-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
  border-color: var(--brand);
}

.upg-capability__change-icon {
  width: 44px;
  height: 44px;
  background: var(--brand-tint);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand);
  flex-shrink: 0;
}

.upg-capability__change-card strong {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--gray-800);
}

.upg-capability__change-card p {
  font-size: var(--text-sm);
  color: var(--gray-600);
  line-height: 1.65;
  margin: 0;
}

/* CTA row */
.upg-capability__cta-row {
  display: flex;
  gap: var(--sp-2);
  flex-wrap: wrap;
  margin-top: var(--sp-6);
}

.upg-capability__cta-row .btn-ghost {
  background: transparent;
  border: 1px solid var(--gray-200);
  color: var(--gray-800);
}

.upg-capability__cta-row .btn-ghost:hover {
  border-color: var(--brand);
  color: var(--brand);
}

/* ============================================================
   S5 — SHARED TRUST / UPGRADE PROCESS
   ============================================================ */

.upg-shared {
  padding: var(--sp-7) var(--sp-5);
}

/* Process steps */
.upg-shared__steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-top: var(--sp-6);
  margin-bottom: var(--sp-7);
}

.upg-shared__step {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding: var(--sp-4);
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.09);
  border-radius: var(--r-lg);
  transition: background .25s ease;
}

.upg-shared__step:hover {
  background: rgba(255,255,255,.08);
}

.upg-shared__step-num {
  font-family: 'DM Mono', monospace;
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--brand);
  line-height: 1;
  opacity: .7;
}

.upg-shared__step-body strong {
  font-size: var(--text-base);
  font-weight: 700;
  color: rgba(255,255,255,.90);
  display: block;
  margin-bottom: var(--sp-1);
}

.upg-shared__step-body p {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.50);
  line-height: 1.65;
  margin: 0;
}

.upg-shared__step-connector {
  width: var(--sp-3);
  height: 1px;
  background: rgba(255,255,255,.12);
  flex-shrink: 0;
  margin-top: 52px;
}

/* Credentials — dark surface, page-specific */
.upg-shared__creds {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-3);
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: var(--sp-5);
}

.upg-shared__cred-item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-2);
}

.upg-shared__cred-icon {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,.08);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-mid);
  flex-shrink: 0;
}

.upg-shared__cred-body {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.upg-shared__cred-body strong {
  font-size: var(--text-sm);
  font-weight: 700;
  color: rgba(255,255,255,.85);
  line-height: 1.3;
}

.upg-shared__cred-body span {
  font-size: var(--text-xs);
  color: rgba(255,255,255,.40);
  line-height: 1.4;
}

/* ============================================================
   S6 — FAQ
   ============================================================ */

.upg-faq {
  padding: var(--sp-7) var(--sp-5);
}

.upg-faq__list {
  margin-top: var(--sp-5);
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

.upg-faq__item {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: border-color .2s ease;
}

.upg-faq__item[open] {
  border-color: var(--brand);
}

.upg-faq__q {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--gray-800);
  cursor: pointer;
  user-select: none;
  line-height: 1.45;
  transition: color .2s ease, background .2s ease;
}

.upg-faq__q::-webkit-details-marker { display: none; }

.upg-faq__q:hover {
  color: var(--brand);
  background: var(--brand-subtle);
}

.upg-faq__item[open] .upg-faq__q {
  color: var(--brand);
  border-bottom: 1px solid var(--gray-100);
}

.upg-faq__q:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

.upg-faq__chevron {
  flex-shrink: 0;
  color: var(--gray-400);
  transition: transform .25s ease;
}

.upg-faq__item[open] .upg-faq__chevron {
  transform: rotate(180deg);
  color: var(--brand);
}

.upg-faq__a {
  padding: var(--sp-3) var(--sp-4);
}

.upg-faq__a p {
  font-size: var(--text-base);
  color: var(--gray-600);
  line-height: 1.75;
  margin: 0 0 var(--sp-2);
}

.upg-faq__a p:last-child {
  margin-bottom: 0;
}

.upg-faq__a .link-arrow {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--brand);
  text-decoration: none;
}

.upg-faq__a .link-arrow:hover {
  text-decoration: underline;
}

/* ============================================================
   S7 — FINAL CTA
   ============================================================ */

.upg-cta {
  padding: var(--sp-8) var(--sp-5);
}

.upg-cta__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--sp-5);
}

.upg-cta__header .section-title {
  display: block;
  margin-bottom: var(--sp-2);
}

.upg-cta__header h2 {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin: 0 0 var(--sp-3);
}

.upg-cta__header h2 em {
  font-style: normal;
  color: rgba(255,255,255,.40);
}

.upg-cta__header .section-sub {
  color: rgba(255,255,255,.55);
  max-width: 560px;
}

.upg-cta__actions {
  display: flex;
  gap: var(--sp-2);
  flex-wrap: wrap;
  justify-content: center;
}

.upg-cta__tagline {
  font-size: var(--text-sm);
  color: rgba(255,255,255,.25);
  letter-spacing: .04em;
  font-style: italic;
  margin-top: var(--sp-2);
}

/* ============================================================
   RESPONSIVE — 960px collapse
   ============================================================ */

@media (max-width: 960px) {

  .upg-hero__title {
    font-size: var(--text-3xl);
  }

  .upg-routes__grid {
    grid-template-columns: 1fr;
  }

  .upg-capacity__diag-grid {
    grid-template-columns: 1fr;
  }

  .upg-capacity__table-wrap {
    font-size: var(--text-xs);
  }

  .upg-capability__path {
    flex-direction: column;
    overflow-x: visible;
  }

  .upg-capability__arrow {
    transform: rotate(90deg);
    margin: 0 auto;
  }

  .upg-capability__changes-grid {
    grid-template-columns: 1fr 1fr;
  }

  .upg-shared__steps {
    flex-direction: column;
  }

  .upg-shared__step-connector {
    width: 1px;
    height: var(--sp-3);
    margin: 0 0 0 var(--sp-5);
  }

  .upg-shared__creds {
    grid-template-columns: 1fr 1fr;
  }

  .upg-cta__header h2 {
    font-size: var(--text-2xl);
  }
}

@media (max-width: 600px) {

  .upg-hero__title {
    font-size: var(--text-2xl);
  }

  .upg-hero__trust {
    gap: var(--sp-3);
  }

  .upg-hero__cta-group {
    flex-direction: column;
  }

  .upg-capability__changes-grid {
    grid-template-columns: 1fr;
  }

  .upg-shared__creds {
    grid-template-columns: 1fr;
  }

  .upg-capacity__cta-row,
  .upg-capability__cta-row,
  .upg-cta__actions {
    flex-direction: column;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .upg-routes__card,
  .upg-capability__step,
  .upg-capability__change-card,
  .upg-shared__step,
  .upg-faq__item,
  .upg-faq__chevron,
  .upg-capacity__diag-card {
    transition: none;
  }
}