/* BackChannel — layout.css
   Brand prefix: bcl
   Section layout, hero, grids, responsive
*/

/* ══════════════════════════════════════════
   SECTION BASE
══════════════════════════════════════════ */

.bcl-section {
  padding: var(--bcl-section-pad-desktop) 0;
}

@media (max-width: 768px) {
  .bcl-section {
    padding: var(--bcl-section-pad-mobile) 0;
  }
}

.bcl-section__header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.bcl-section__header h2 {
  margin-bottom: 16px;
}

.bcl-section--dark .bcl-section__header h2,
.bcl-section--dark-alt .bcl-section__header h2 {
  color: var(--bcl-fg-dark-primary);
}

.bcl-section--light .bcl-section__header h2,
.bcl-section--white .bcl-section__header h2,
.bcl-section--cream .bcl-section__header h2 {
  color: var(--bcl-fg-light-primary);
}

.bcl-section__header p {
  font-size: 1.05rem;
  line-height: 1.75;
}

.bcl-section--dark .bcl-section__header p,
.bcl-section--dark-alt .bcl-section__header p {
  color: var(--bcl-fg-dark-secondary);
}

.bcl-section--light .bcl-section__header p,
.bcl-section--white .bcl-section__header p,
.bcl-section--cream .bcl-section__header p {
  color: var(--bcl-fg-light-secondary);
}

/* ══════════════════════════════════════════
   HERO — INDEX (dark split)
══════════════════════════════════════════ */

.bcl-hero {
  background: var(--bcl-bg-dark);
  padding: 80px 0 0;
  overflow: hidden;
  position: relative;
}

.bcl-hero__inner {
  max-width: var(--bcl-container-max);
  margin: 0 auto;
  padding: 0 var(--bcl-container-pad);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  min-height: 560px;
}

@media (max-width: 900px) {
  .bcl-hero__inner {
    grid-template-columns: 1fr;
    gap: 48px;
    min-height: auto;
    padding-bottom: 48px;
  }
}

.bcl-hero__left {
  padding: 40px 0 80px;
}

@media (max-width: 900px) {
  .bcl-hero__left {
    padding-bottom: 0;
    text-align: center;
  }
}

.bcl-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bcl-cyan);
  margin-bottom: 20px;
  background: rgba(0,201,167,0.08);
  padding: 5px 12px;
  border-radius: 4px;
  border: 1px solid rgba(0,201,167,0.2);
}

.bcl-hero__h1 {
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.15;
  color: var(--bcl-fg-dark-primary);
  margin-bottom: 24px;
  letter-spacing: -0.025em;
}

.bcl-hero__h1 em {
  font-style: normal;
  color: var(--bcl-cyan);
}

.bcl-hero__sub {
  font-size: 1.05rem;
  color: var(--bcl-fg-dark-secondary);
  line-height: 1.75;
  margin-bottom: 36px;
  max-width: 520px;
}

@media (max-width: 900px) {
  .bcl-hero__sub {
    margin-left: auto;
    margin-right: auto;
  }
}

.bcl-hero__actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .bcl-hero__actions {
    justify-content: center;
  }
}

/* ── FX Terminal SVG panel ── */
.bcl-hero__terminal {
  position: relative;
  padding-bottom: 40px;
}

@media (max-width: 900px) {
  .bcl-hero__terminal {
    max-width: 520px;
    margin: 0 auto;
    padding-bottom: 20px;
  }
}

/* ══════════════════════════════════════════
   SUB-PAGE HERO (light-top)
══════════════════════════════════════════ */

.bcl-subhero {
  padding: 64px 0 72px;
}

.bcl-subhero__inner {
  max-width: var(--bcl-container-max);
  margin: 0 auto;
  padding: 0 var(--bcl-container-pad);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: center;
}

.bcl-subhero__inner--centered {
  grid-template-columns: 1fr;
  text-align: center;
  max-width: 760px;
}

.bcl-subhero__inner--split {
  grid-template-columns: 1fr 420px;
}

@media (max-width: 900px) {
  .bcl-subhero__inner,
  .bcl-subhero__inner--split {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

.bcl-subhero__text h1 {
  color: var(--bcl-fg-light-primary);
  margin-bottom: 18px;
}

.bcl-subhero__text p {
  font-size: 1.05rem;
  color: var(--bcl-fg-light-secondary);
  line-height: 1.75;
  max-width: 580px;
}

.bcl-subhero__inner--centered .bcl-subhero__text p {
  margin-left: auto;
  margin-right: auto;
}

.bcl-subhero__lede {
  font-size: 1.05rem;
  color: var(--bcl-fg-light-secondary);
  line-height: 1.75;
  max-width: 580px;
  margin: 0 auto;
}

.bcl-subhero__visual {
  flex-shrink: 0;
}

@media (max-width: 900px) {
  .bcl-subhero__visual {
    display: none;
  }
}

/* Mini metric badge for sub-page hero accents */
.bcl-subhero-metric {
  background: var(--bcl-bg-white);
  border: 1.5px solid var(--bcl-border-light);
  border-radius: 10px;
  padding: 20px 28px;
  text-align: center;
}

.bcl-subhero-metric__val {
  font-family: var(--bcl-font-mono);
  font-size: 2rem;
  font-weight: 600;
  color: var(--bcl-navy);
  line-height: 1;
  margin-bottom: 6px;
}

.bcl-subhero-metric__label {
  font-size: 0.8rem;
  color: var(--bcl-fg-light-secondary);
  line-height: 1.3;
}

/* ══════════════════════════════════════════
   GRID LAYOUTS
══════════════════════════════════════════ */

.bcl-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

@media (max-width: 900px) {
  .bcl-grid-3 {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .bcl-grid-3 {
    grid-template-columns: 1fr;
  }
}

.bcl-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

@media (max-width: 768px) {
  .bcl-grid-2 {
    grid-template-columns: 1fr;
  }
}

/* ══════════════════════════════════════════
   PRICING TEASER (dark section)
══════════════════════════════════════════ */

.bcl-pricing-teaser {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

@media (max-width: 900px) {
  .bcl-pricing-teaser {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.bcl-pricing-teaser__left h2 {
  color: var(--bcl-fg-dark-primary);
  margin-bottom: 16px;
}

.bcl-pricing-teaser__left p {
  color: var(--bcl-fg-dark-secondary);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 28px;
}

/* ══════════════════════════════════════════
   IOF EXPLAINER (2-col)
══════════════════════════════════════════ */

.bcl-iof-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

@media (max-width: 900px) {
  .bcl-iof-split {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.bcl-iof-split__left h2 {
  color: var(--bcl-fg-light-primary);
  margin-bottom: 16px;
}

.bcl-iof-split__left p {
  color: var(--bcl-fg-light-secondary);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 20px;
}

.bcl-iof-split__right {
  display: flex;
  align-items: center;
  justify-content: center;
}

.bcl-iof-split__savings-callout {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(0,122,101,0.08);
  border: 1px solid rgba(0,122,101,0.2);
  border-radius: 8px;
  padding: 12px 18px;
  color: var(--bcl-cyan-aa-light);
  font-size: 0.95rem;
  font-weight: 600;
}

/* ══════════════════════════════════════════
   CTA BAND
══════════════════════════════════════════ */

.bcl-cta-band {
  padding: 80px 0;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.bcl-cta-band__svg-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.12;
}

.bcl-cta-band__content {
  position: relative;
  z-index: 1;
  max-width: var(--bcl-container-max);
  margin: 0 auto;
  padding: 0 var(--bcl-container-pad);
}

.bcl-cta-band__h2 {
  font-size: clamp(24px, 3.5vw, 36px);
  color: var(--bcl-fg-dark-primary);
  margin-bottom: 28px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.bcl-cta-band__h2 em {
  font-style: normal;
  color: var(--bcl-cyan);
}

/* ══════════════════════════════════════════
   BLOG PAGE
══════════════════════════════════════════ */

.bcl-blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

@media (max-width: 900px) {
  .bcl-blog-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .bcl-blog-grid {
    grid-template-columns: 1fr;
  }
}

/* Blog article */
.bcl-article-layout {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 var(--bcl-container-pad) 80px;
}

.bcl-article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
  font-size: 0.85rem;
  color: var(--bcl-fg-light-secondary);
  flex-wrap: wrap;
}

.bcl-article-meta__tag {
  display: inline-block;
  background: rgba(0,122,101,0.08);
  color: var(--bcl-cyan-aa-light);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 4px;
}

.bcl-article-cover {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 40px;
  aspect-ratio: 16/9;
  object-fit: cover;
}

/* Article body placeholder — rich typography */
.bcl-article-body h2 {
  font-size: 1.4rem;
  margin-top: 40px;
  margin-bottom: 16px;
  color: var(--bcl-fg-light-primary);
}

.bcl-article-body h3 {
  font-size: 1.15rem;
  margin-top: 28px;
  margin-bottom: 12px;
  color: var(--bcl-fg-light-primary);
}

.bcl-article-body p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--bcl-fg-light-secondary);
  margin-bottom: 20px;
}

.bcl-article-body ul, .bcl-article-body ol {
  margin-bottom: 20px;
  color: var(--bcl-fg-light-secondary);
}

/* ══════════════════════════════════════════
   CONTACT PAGE
══════════════════════════════════════════ */

.bcl-contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: start;
}

@media (max-width: 900px) {
  .bcl-contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.bcl-contact-info h3 {
  font-size: 1.1rem;
  margin-bottom: 20px;
  color: var(--bcl-fg-light-primary);
}

.bcl-contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--bcl-border-light);
}

.bcl-contact-detail:last-child {
  border-bottom: none;
}

.bcl-contact-detail__icon {
  width: 36px;
  height: 36px;
  background: rgba(0,122,101,0.08);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bcl-cyan-aa-light);
  font-size: 0.9rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.bcl-contact-detail__label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--bcl-fg-light-secondary);
  margin-bottom: 4px;
}

.bcl-contact-detail__value {
  font-size: 0.9rem;
  color: var(--bcl-fg-light-primary);
  line-height: 1.6;
}

.bcl-contact-detail__value a {
  color: var(--bcl-cyan-aa-light);
}

/* ══════════════════════════════════════════
   TEAM LETTER-CIRCLES
══════════════════════════════════════════ */

.bcl-team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

@media (max-width: 900px) {
  .bcl-team-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 500px) {
  .bcl-team-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.bcl-team-member {
  text-align: center;
}

.bcl-team-member__avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--bcl-navy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--bcl-font-mono);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--bcl-cyan);
  margin: 0 auto 16px;
  border: 2px solid rgba(0,201,167,0.15);
}

.bcl-team-member__name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--bcl-fg-light-primary);
  margin-bottom: 4px;
}

.bcl-team-member__role {
  font-size: 0.82rem;
  color: var(--bcl-fg-light-secondary);
}

/* ══════════════════════════════════════════
   SECURITY / COMPLIANCE
══════════════════════════════════════════ */

.bcl-security-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 768px) {
  .bcl-security-grid {
    grid-template-columns: 1fr;
  }
}

.bcl-security-item {
  background: var(--bcl-bg-light);
  border: 1px solid var(--bcl-border-light);
  border-radius: 10px;
  padding: 24px 28px;
}

.bcl-security-item__icon {
  color: var(--bcl-cyan-aa-light);
  font-size: 1.3rem;
  margin-bottom: 14px;
}

.bcl-security-item__title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--bcl-fg-light-primary);
  margin-bottom: 8px;
}

.bcl-security-item__body {
  font-size: 0.875rem;
  color: var(--bcl-fg-light-secondary);
  line-height: 1.7;
}

/* Compliance disclaimer */
.bcl-compliance-note {
  background: rgba(0,122,101,0.06);
  border-left: 3px solid var(--bcl-cyan-aa-light);
  border-radius: 0 8px 8px 0;
  padding: 16px 20px;
  font-size: 0.875rem;
  color: var(--bcl-fg-light-secondary);
  line-height: 1.7;
  margin-top: 20px;
}

/* ══════════════════════════════════════════
   INTEGRATIONS
══════════════════════════════════════════ */

.bcl-integration-flow {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 40px;
}

.bcl-integration-node {
  background: var(--bcl-bg-white);
  border: 1.5px solid var(--bcl-border-light);
  border-radius: 10px;
  padding: 20px 28px;
  text-align: center;
  min-width: 160px;
}

.bcl-integration-node__icon {
  font-size: 1.8rem;
  margin-bottom: 8px;
  color: var(--bcl-cyan-aa-light);
}

.bcl-integration-node__label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--bcl-fg-light-primary);
  margin-bottom: 4px;
}

.bcl-integration-node__sub {
  font-size: 0.78rem;
  color: var(--bcl-fg-light-secondary);
}

.bcl-integration-arrow {
  color: var(--bcl-border-light);
  font-size: 1.2rem;
}

@media (max-width: 600px) {
  .bcl-integration-flow {
    flex-direction: column;
  }
  .bcl-integration-arrow {
    transform: rotate(90deg);
  }
}

/* Pricing teaser cards on dark */
.bcl-pricing-teaser-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 600px) {
  .bcl-pricing-teaser-cards {
    grid-template-columns: 1fr;
  }
}

.bcl-teaser-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--bcl-border-dark);
  border-radius: 10px;
  padding: 24px;
}

.bcl-teaser-card__tier {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bcl-cyan);
  margin-bottom: 8px;
}

.bcl-teaser-card__rate {
  font-family: var(--bcl-font-mono);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--bcl-fg-dark-primary);
  margin-bottom: 4px;
  line-height: 1;
}

.bcl-teaser-card__note {
  font-size: 0.82rem;
  color: var(--bcl-fg-dark-secondary);
  margin-bottom: 16px;
}

.bcl-teaser-card__feature {
  font-size: 0.875rem;
  color: var(--bcl-fg-dark-secondary);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.bcl-teaser-card__feature i {
  color: var(--bcl-cyan);
  font-size: 0.75rem;
}