:root {
  --oc-bg: #0c1420;
  --oc-surface: rgba(18, 28, 44, 0.92);
  --oc-surface-soft: rgba(28, 40, 62, 0.92);
  --oc-line: rgba(148, 173, 220, 0.16);
  --oc-line-strong: rgba(148, 173, 220, 0.26);
  --oc-ink: #f4f7fb;
  --oc-muted: #a7b8d2;
  --oc-blue: #4c7cf0;
  --oc-blue-strong: #2d58d7;
  --oc-gold: #f0a646;
  --oc-shadow: 0 24px 56px rgba(0, 0, 0, 0.32);
}

body.c-option-c {
  color: var(--oc-ink);
  background:
    radial-gradient(circle at 15% 0%, rgba(76, 124, 240, 0.18), transparent 26%),
    radial-gradient(circle at 100% 18%, rgba(240, 166, 70, 0.12), transparent 22%),
    linear-gradient(180deg, #0b121d 0%, #101a29 46%, #0d1623 100%);
}

body.c-option-c .c-site-header {
  background: rgba(10, 17, 28, 0.82);
  border-bottom: 1px solid var(--oc-line);
}

body.c-option-c .c-btn--solid {
  background: linear-gradient(135deg, var(--oc-blue-strong), var(--oc-blue));
}

body.c-option-c .c-btn--ghost {
  border-color: var(--oc-line-strong);
  background: rgba(255,255,255,0.03);
  color: var(--oc-ink);
}

body.c-option-c .c-main-nav a,
body.c-option-c .c-mobile-nav__inner a,
body.c-option-c .c-overline,
body.c-option-c .c-section__copy,
body.c-option-c .c-site-footer__meta,
body.c-option-c .c-site-footer__links a,
body.c-option-c .c-site-footer__copy,
body.c-option-c .c-breadcrumb,
body.c-option-c .c-home-hero__copy,
body.c-option-c .c-card__subtitle,
body.c-option-c .c-docs__meta,
body.c-option-c .c-product-side__meta,
body.c-option-c .c-product-side__variant-note {
  color: var(--oc-muted);
}

body.c-option-c .c-site-footer {
  background: transparent;
  border-top-color: var(--oc-line);
}

.oc-hero,
.oc-section { padding: 1.2rem 0 3rem; }

.oc-grid,
.oc-grid-2,
.oc-grid-3,
.oc-grid-4,
.oc-product-layout,
.oc-brand-row,
.oc-stage-grid,
.oc-summary-grid,
.oc-form-grid,
.oc-proof-grid {
  display: grid;
  gap: 1rem;
}

.oc-grid { grid-template-columns: minmax(0, 1.18fr) minmax(340px, 0.72fr); align-items: stretch; }
.oc-grid-2, .oc-product-layout { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.oc-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.oc-grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.oc-brand-row { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.oc-stage-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.oc-summary-grid, .oc-form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.oc-proof-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.oc-panel,
.oc-card,
.oc-stage,
.oc-gallery,
.oc-summary,
.oc-doc-panel,
.oc-rfq-panel,
.oc-spec-panel,
.oc-proof {
  background: var(--oc-surface);
  border: 1px solid var(--oc-line);
  box-shadow: var(--oc-shadow);
  border-radius: 28px;
  transition: border-color 220ms ease, box-shadow 220ms ease;
}

.oc-card:hover {
  border-color: rgba(76, 124, 240, 0.28);
  box-shadow: 0 28px 60px rgba(0, 0, 0, 0.4);
}

.oc-panel,
.oc-card,
.oc-stage,
.oc-gallery,
.oc-summary,
.oc-doc-panel,
.oc-rfq-panel,
.oc-spec-panel,
.oc-proof { padding: 1.5rem; }

.oc-hero-copy {
  position: relative;
  overflow: hidden;
}

.oc-hero-copy::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -20px;
  width: 240px;
  height: 240px;
  border-radius: 32px;
  border: 1px solid rgba(240, 166, 70, 0.18);
  transform: rotate(18deg);
}

.oc-eyebrow,
.oc-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  background: rgba(76, 124, 240, 0.12);
  color: #c9dafd;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.oc-kicker { padding: 0; background: transparent; }

.oc-title,
.oc-section-title,
.oc-product-title {
  font-family: var(--font-display);
  color: var(--oc-ink);
  margin: 0.9rem 0 1rem;
}

.oc-title { font-size: clamp(2.4rem, 4.8vw, 4.8rem); line-height: 0.98; max-width: 10ch; }
.oc-section-title { font-size: clamp(1.65rem, 2.9vw, 2.6rem); line-height: 1.06; }
.oc-product-title { font-size: clamp(2.1rem, 3vw, 3.2rem); line-height: 1.02; }

.oc-lead,
.oc-muted,
.oc-card p,
.oc-step span,
.oc-proof span {
  color: var(--oc-muted);
  line-height: 1.7;
}

.oc-actions,
.oc-inline,
.oc-meta-row,
.oc-page-nav {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.oc-actions { margin-top: 1.5rem; }

.oc-badge,
.oc-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
}

.oc-badge {
  background: rgba(240, 166, 70, 0.12);
  color: #ffd8a7;
}

.oc-pill {
  border: 1px solid var(--oc-line);
  background: var(--oc-surface-soft);
  color: var(--oc-muted);
}

.oc-search-panel {
  margin-top: 1.5rem;
  padding: 1rem;
  border-radius: 22px;
  border: 1px solid var(--oc-line);
  background: rgba(255,255,255,0.03);
}

.oc-search-panel .c-search { margin-top: 0.75rem; }
.oc-search-panel .c-search__input-wrap,
.oc-form-grid .c-input,
.oc-form-grid .c-textarea {
  border-color: var(--oc-line-strong);
  background: rgba(255,255,255,0.98);
}

.oc-hero-side { display: grid; gap: 1rem; }

.oc-list,
.oc-checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.8rem; }

.oc-list li,
.oc-checklist li,
.oc-step,
.oc-summary-metric,
.oc-spec-item,
.oc-brand-pill,
.oc-proof {
  padding: 0.95rem 1rem;
  border-radius: 20px;
  border: 1px solid var(--oc-line);
  background: var(--oc-surface-soft);
}

.oc-list strong,
.oc-checklist strong,
.oc-step strong,
.oc-summary-metric strong,
.oc-spec-item strong,
.oc-proof strong { color: var(--oc-ink); display: block; }

.oc-brand-pill {
  display: grid;
  place-items: center;
  min-height: 68px;
  font-family: var(--font-display);
}

.oc-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
  margin-bottom: 1.3rem;
}

.oc-card h3,
.oc-card h4 { margin: 0.85rem 0 0.45rem; color: var(--oc-ink); }

.oc-icon {
  display: inline-flex;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  align-items: center;
  justify-content: center;
  background: rgba(76, 124, 240, 0.14);
  color: #d9e5ff;
  font-weight: 800;
}

.oc-stage-grid { margin-top: 1rem; }

.oc-gallery-main {
  padding: 1rem;
  border-radius: 22px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--oc-line);
}

.oc-gallery-rail {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.oc-gallery-rail img {
  border-radius: 16px;
  border: 1px solid var(--oc-line);
  background: rgba(255,255,255,0.06);
  padding: 0.4rem;
}

.oc-summary { position: sticky; top: calc(var(--header-height) + 20px); }
.oc-page-nav { margin: 1rem 0 1.4rem; }
.oc-page-nav a {
  padding: 0.65rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--oc-line);
  background: rgba(255,255,255,0.03);
  color: var(--oc-ink);
  font-weight: 600;
}

.oc-summary-grid,
.oc-spec-stack { margin-top: 1rem; }
.oc-summary-metric span,
.oc-spec-item span,
.oc-doc-summary { color: var(--oc-muted); font-size: 0.86rem; }
.oc-spec-stack { display: grid; gap: 0.8rem; }

.oc-doc-actions {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  padding: 1rem;
  border-radius: 20px;
  border: 1px solid var(--oc-line);
  background: rgba(255,255,255,0.03);
}

.oc-doc-status {
  margin-top: 1rem;
  padding: 0.95rem 1rem;
  border-radius: 16px;
  background: rgba(76, 124, 240, 0.14);
  color: #d9e5ff;
}

.oc-doc-status.is-error {
  background: rgba(184, 53, 80, 0.18);
  color: #ffd1db;
}

.oc-form-grid .c-form-row--full { grid-column: 1 / -1; }
.oc-form-grid label { display: block; margin-bottom: 0.45rem; color: var(--oc-ink); font-weight: 600; }

.oc-grid-3 .oc-card img {
  width: 100%;
  border-radius: 16px;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  margin-bottom: 0.25rem;
}

@media (max-width: 1100px) {
  .oc-grid,
  .oc-product-layout,
  .oc-grid-3,
  .oc-grid-2,
  .oc-proof-grid,
  .oc-stage-grid,
  .oc-brand-row,
  .oc-summary-grid,
  .oc-form-grid { grid-template-columns: 1fr; }
  .oc-grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .oc-grid-4 { grid-template-columns: 1fr; }
  .oc-head,
  .oc-doc-actions { flex-direction: column; align-items: start; }
  .oc-summary { position: static; }
}