/* ============ BLOCKCHAIN OVERVIEW PAGE ============ */

/* ---------- Section primitives ---------- */
.bc-section {
  position: relative; padding: 120px 0; background: #05070F;
  border-top: 1px solid var(--site-line);
  overflow: hidden;
}
.bc-section-deep {
  background:
    radial-gradient(60% 50% at 0% 0%, rgba(0,85,255,0.10), transparent 60%),
    radial-gradient(50% 50% at 100% 100%, rgba(79,200,255,0.06), transparent 60%),
    #04060E;
}
.bc-section-head {
  display: grid; grid-template-columns: 1.4fr 1fr;
  gap: 48px; align-items: end;
  margin-bottom: 56px;
}
.bc-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--site-cyan);
}
.bc-eyebrow-mono {
  font-family: var(--font-mono);
  font-size: 10.5px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--site-text-3);
}
.bc-section-title {
  font-size: 48px; line-height: 1.05; letter-spacing: -0.02em;
  margin: 12px 0 0; color: #fff; font-weight: 600;
}
.bc-section-sub {
  font-size: 15.5px; line-height: 1.55; color: var(--site-text-2);
  max-width: 460px; margin: 0;
}

/* ---------- HERO ---------- */
.bc-hero {
  position: relative; padding: 140px 0 100px;
  background:
    radial-gradient(50% 50% at 20% 0%, rgba(0,85,255,0.18), transparent 60%),
    radial-gradient(50% 60% at 100% 30%, rgba(79,200,255,0.10), transparent 60%),
    #03050C;
  overflow: hidden; border-bottom: 1px solid var(--site-line);
}
.bc-hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(60% 60% at 50% 30%, #000 30%, transparent 80%);
  pointer-events: none;
}
.bc-hero-glow {
  position: absolute; left: 50%; top: 0; transform: translateX(-50%);
  width: 1100px; height: 600px;
  background: radial-gradient(closest-side, rgba(0,85,255,0.35), transparent 70%);
  filter: blur(60px); pointer-events: none; opacity: 0.7;
}
.bc-hero-inner {
  position: relative;
  display: grid; grid-template-columns: 1.05fr 1fr;
  gap: 64px; align-items: center;
}
.bc-hero-tag {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  margin-bottom: 28px;
}
.bc-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border: 1px solid rgba(79,200,255,0.3);
  background: rgba(0,85,255,0.10); color: #fff;
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.18em; text-transform: uppercase;
}
.bc-hero-h {
  font-size: 68px; line-height: 1.02; letter-spacing: -0.025em;
  font-weight: 600; color: #fff; margin: 0 0 24px;
}
.bc-hero-accent {
  background: linear-gradient(90deg, var(--site-cyan), #2D7BFF);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.bc-hero-sub {
  font-size: 17px; line-height: 1.55; color: var(--site-text-2);
  max-width: 580px; margin: 0 0 36px;
}
.bc-hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 32px; }
.bc-hero-chips { display: flex; flex-direction: column; gap: 10px; }
.bc-hero-chip {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13.5px; color: var(--site-text);
}
.bc-hero-chip-ico {
  width: 18px; height: 18px; flex-shrink: 0;
  display: grid; place-items: center;
  border: 1px solid rgba(94,255,164,0.4);
  background: rgba(94,255,164,0.08);
  color: var(--site-mint);
}

/* Hero visual */
.bc-hero-visual {
  position: relative;
  border: 1px solid var(--site-line);
  background: linear-gradient(180deg, rgba(15,21,48,0.85), rgba(5,7,15,0.6));
  padding: 14px;
  box-shadow: 0 30px 80px -30px rgba(0,85,255,0.45);
}
.bc-hv-bar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 12px 12px; border-bottom: 1px solid var(--site-line);
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.1em; color: var(--site-text-3);
}
.bc-hv-live {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--site-mint);
}
.bc-hv-live::before {
  content: ""; width: 6px; height: 6px;
  background: var(--site-mint); border-radius: 50%;
  box-shadow: 0 0 10px var(--site-mint);
  animation: bc-pulse 1.6s infinite;
}
@keyframes bc-pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

.bc-hv-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
  padding-top: 14px;
}
.bc-hv-chain { display: flex; flex-direction: column; gap: 8px; }
.bc-hv-block {
  border: 1px solid var(--site-line);
  background: rgba(255,255,255,0.02);
  padding: 12px; display: flex; flex-direction: column; gap: 4px;
  transition: border-color 200ms, background 200ms;
}
.bc-hv-block.is-active {
  border-color: rgba(79,200,255,0.5);
  background: rgba(0,85,255,0.08);
  box-shadow: 0 0 0 1px rgba(79,200,255,0.2);
}
.bc-hv-block-id {
  font-family: var(--font-mono); font-size: 10.5px;
  color: var(--site-cyan); letter-spacing: 0.06em;
}
.bc-hv-block-t { font-size: 13px; color: #fff; }
.bc-hv-block-state {
  font-family: var(--font-mono); font-size: 9.5px;
  letter-spacing: 0.16em; color: var(--site-mint);
}
.bc-hv-block-state.pending { color: #FFC857; }

.bc-hv-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; align-content: start; }
.bc-hv-cell {
  border: 1px solid var(--site-line);
  background: rgba(255,255,255,0.02);
  padding: 12px; display: flex; flex-direction: column; gap: 4px;
}
.bc-hv-cell.wide { grid-column: span 2; }
.bc-hv-cell .lbl {
  font-family: var(--font-mono); font-size: 9.5px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--site-text-3);
}
.bc-hv-cell .val { font-size: 18px; color: #fff; font-weight: 500; }
.bc-hv-cell .val .u { font-size: 13px; color: var(--site-cyan); margin-left: 2px; }
.bc-hv-bar-mini {
  height: 3px; background: rgba(255,255,255,0.06); margin-top: 4px;
}
.bc-hv-bar-mini span {
  display: block; height: 100%;
  background: linear-gradient(90deg, var(--site-blue), var(--site-cyan));
}
.bc-hv-stack { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 4px; }
.bc-hv-stack span {
  font-family: var(--font-mono); font-size: 10px;
  padding: 3px 8px; border: 1px solid var(--site-line);
  color: var(--site-text-2); letter-spacing: 0.08em;
}

/* ---------- SERVICE GRID ---------- */
.bc-svc-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--site-line);
  border: 1px solid var(--site-line);
}
.bc-svc-card {
  background: #060914; padding: 0 0 24px;
  display: flex; flex-direction: column; gap: 14px;
  text-decoration: none; color: inherit;
  position: relative; transition: background 200ms;
}
.bc-svc-card:hover {
  background: linear-gradient(180deg, rgba(0,85,255,0.06), rgba(5,7,15,0.4));
}
.bc-svc-media {
  position: relative; width: 100%; aspect-ratio: 16 / 9;
  background-size: cover; background-position: center;
  background-color: #0a0f1f;
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 14px 16px; margin-bottom: 4px;
  overflow: hidden;
}
.bc-svc-media-overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(5,7,15,0.55) 0%, rgba(5,7,15,0.35) 50%, rgba(6,9,20,1) 100%),
    linear-gradient(135deg, rgba(0,85,255,0.20), rgba(0,0,0,0));
  pointer-events: none;
}
.bc-svc-media > *:not(.bc-svc-media-overlay) { position: relative; z-index: 1; }
.bc-svc-card:hover .bc-svc-media { transform: none; }
.bc-svc-card:hover .bc-svc-media-overlay {
  background:
    linear-gradient(180deg, rgba(5,7,15,0.45) 0%, rgba(5,7,15,0.30) 50%, rgba(6,9,20,1) 100%),
    linear-gradient(135deg, rgba(0,85,255,0.30), rgba(0,0,0,0));
}
.bc-svc-top {
  display: flex; justify-content: space-between; align-items: center;
}
.bc-svc-num {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.18em; color: var(--site-text-3);
}
.bc-svc-arrow {
  width: 14px; height: 14px; color: var(--site-text-3);
  transition: color 200ms, transform 200ms;
}
.bc-svc-card:hover .bc-svc-arrow {
  color: var(--site-cyan); transform: translate(2px, -2px);
}
.bc-svc-name,
.bc-svc-problem,
.bc-svc-caps,
.bc-svc-explore { padding-left: 24px; padding-right: 24px; }
.bc-svc-icon {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  background: rgba(5,7,15,0.78);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  border: 1px solid rgba(79,200,255,0.3);
  background: rgba(0,85,255,0.08);
  color: var(--site-cyan);
}
.bc-svc-name {
  font-size: 17px; line-height: 1.25; color: #fff; font-weight: 500;
}
.bc-svc-problem {
  font-size: 13.5px; line-height: 1.5; color: var(--site-text-2);
}
.bc-svc-caps {
  list-style: none; padding: 0; margin: 4px 0 0;
  display: flex; flex-direction: column; gap: 6px;
}
.bc-svc-caps li {
  font-size: 12.5px; color: var(--site-text);
  display: flex; align-items: center; gap: 8px;
}
.bc-svc-caps li svg { color: var(--site-mint); flex-shrink: 0; }
.bc-svc-explore {
  margin-top: auto; padding-top: 14px;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--site-cyan);
  display: inline-flex; align-items: center; gap: 6px;
  border-top: 1px solid var(--site-line);
}

/* ---------- COMPETENCIES ---------- */
.bc-pillars {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--site-line);
  border: 1px solid var(--site-line);
}
.bc-pillar {
  background: rgba(15,21,48,0.3);
  padding: 32px 28px;
  display: flex; flex-direction: column; gap: 14px;
}
.bc-pillar-head {
  display: flex; align-items: center; gap: 12px;
  padding-bottom: 14px; border-bottom: 1px solid var(--site-line);
}
.bc-pillar-icon {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border: 1px solid rgba(79,200,255,0.3);
  background: rgba(0,85,255,0.10);
  color: var(--site-cyan);
}
.bc-pillar-tag {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.18em; color: var(--site-text-3);
}
.bc-pillar-title {
  font-size: 26px; color: #fff; font-weight: 600;
  letter-spacing: -0.01em;
}
.bc-pillar-sub {
  font-size: 13.5px; color: var(--site-text-2);
}
.bc-pillar-list {
  list-style: none; padding: 0; margin: 6px 0 0;
  display: flex; flex-direction: column; gap: 8px;
}
.bc-pillar-list li {
  font-size: 13px; color: var(--site-text);
  display: flex; align-items: flex-start; gap: 10px;
}
.bc-pillar-list li svg {
  color: var(--site-mint); margin-top: 4px; flex-shrink: 0;
}

/* ---------- CATEGORIES ---------- */
.bc-cat-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--site-line);
  border: 1px solid var(--site-line);
}
.bc-cat-card {
  background: #060914; padding: 26px 24px;
  display: flex; flex-direction: column; gap: 12px;
  text-decoration: none; color: inherit;
  scroll-margin-top: 100px;
  transition: background 200ms;
}
.bc-cat-card:hover {
  background: linear-gradient(180deg, rgba(0,85,255,0.06), rgba(5,7,15,0.4));
}
.bc-cat-top { display: flex; justify-content: space-between; align-items: flex-start; }
.bc-cat-eye {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.2em; color: var(--site-cyan);
}
.bc-cat-arrow { width: 14px; height: 14px; color: var(--site-text-3); }
.bc-cat-title {
  font-size: 19px; line-height: 1.2;
  color: #fff; font-weight: 500;
}
.bc-cat-desc { font-size: 13px; line-height: 1.5; color: var(--site-text-2); }
.bc-cat-list {
  list-style: none; padding: 12px 0 0; margin: auto 0 0;
  border-top: 1px solid var(--site-line);
  display: flex; flex-direction: column; gap: 4px;
}
.bc-cat-list li {
  font-size: 12px; color: var(--site-text-2);
  padding-left: 12px; position: relative;
}
.bc-cat-list li::before {
  content: ""; position: absolute; left: 0; top: 8px;
  width: 4px; height: 4px; background: var(--site-cyan);
}

/* ---------- PROOF / PORTFOLIO ---------- */
.bc-proof-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.bc-proof-card {
  position: relative; padding: 28px;
  border: 1px solid var(--site-line);
  background:
    linear-gradient(180deg, rgba(15,21,48,0.7), rgba(5,7,15,0.5));
  display: flex; flex-direction: column; gap: 14px;
}
.bc-proof-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--site-cyan), var(--site-blue));
}
.bc-proof-tag {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.2em; color: var(--site-cyan);
}
.bc-proof-title {
  font-size: 20px; line-height: 1.3; color: #fff; font-weight: 500;
}
.bc-proof-desc {
  font-size: 14px; line-height: 1.55; color: var(--site-text-2);
}
.bc-proof-metrics {
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
  margin-top: 6px; padding-top: 14px;
  border-top: 1px solid var(--site-line);
}
.bc-proof-metric .lbl {
  font-family: var(--font-mono); font-size: 9.5px;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--site-text-3);
}
.bc-proof-metric .val {
  font-size: 16px; color: #fff; font-weight: 500; margin-top: 4px;
}

/* ---------- DELIVERY ---------- */
.bc-delivery {
  display: flex; flex-direction: column; gap: 32px;
}
.bc-delivery-track {
  display: grid; grid-template-columns: repeat(8, 1fr);
  gap: 1px; background: var(--site-line);
  border: 1px solid var(--site-line);
}
.bc-step {
  position: relative; padding: 24px 16px;
  background: #060914;
  display: flex; flex-direction: column; gap: 10px;
}
.bc-step-n {
  font-family: var(--font-mono); font-size: 10.5px;
  letter-spacing: 0.2em; color: var(--site-cyan);
}
.bc-step-t { font-size: 16px; color: #fff; font-weight: 500; }
.bc-step-d { font-size: 12px; line-height: 1.45; color: var(--site-text-2); }
.bc-step-arrow {
  position: absolute; right: -8px; top: 24px;
  font-size: 16px; color: var(--site-cyan);
  z-index: 2; background: #05070F; padding: 0 2px;
}
.bc-delivery-list {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-wrap: wrap; gap: 10px 24px;
  border-top: 1px solid var(--site-line);
  padding-top: 24px;
}
.bc-delivery-list li {
  font-size: 13px; color: var(--site-text);
  display: inline-flex; align-items: center; gap: 8px;
}
.bc-delivery-list li svg { color: var(--site-mint); flex-shrink: 0; }

/* ---------- FINAL CTA ---------- */
.bc-final-cta {
  position: relative; padding: 120px 0;
  background:
    radial-gradient(50% 80% at 50% 0%, rgba(0,85,255,0.18), transparent 70%),
    #04060E;
  border-top: 1px solid var(--site-line);
  overflow: hidden;
}
.bc-final-glow {
  position: absolute; inset: 0;
  background:
    radial-gradient(40% 60% at 20% 100%, rgba(79,200,255,0.10), transparent 60%),
    radial-gradient(40% 60% at 80% 100%, rgba(94,255,164,0.08), transparent 60%);
  pointer-events: none;
}
.bc-final-inner {
  position: relative; text-align: center; max-width: 760px; margin: 0 auto;
  display: flex; flex-direction: column; align-items: center; gap: 18px;
}
.bc-final-eyebrow {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--site-cyan);
}
.bc-final-h {
  font-size: 56px; line-height: 1.05; letter-spacing: -0.02em;
  font-weight: 600; color: #fff; margin: 0;
}
.bc-final-sub {
  font-size: 17px; line-height: 1.55; color: var(--site-text-2);
  max-width: 600px; margin: 0;
}
.bc-final-ctas { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-top: 12px; }

/* ---------- Responsive ---------- */
@media (max-width: 1180px) {
  .bc-hero-inner { grid-template-columns: 1fr; gap: 48px; }
  .bc-hero-h { font-size: 56px; }
  .bc-svc-grid { grid-template-columns: repeat(3, 1fr); }
  .bc-pillars { grid-template-columns: repeat(2, 1fr); }
  .bc-cat-grid { grid-template-columns: repeat(2, 1fr); }
  .bc-delivery-track { grid-template-columns: repeat(4, 1fr); }
  .bc-step-arrow { display: none; }
}
@media (max-width: 820px) {
  .bc-section { padding: 88px 0; }
  .bc-section-head { grid-template-columns: 1fr; gap: 20px; margin-bottom: 36px; }
  .bc-section-title { font-size: 36px; }
  .bc-hero { padding: 110px 0 80px; }
  .bc-hero-h { font-size: 42px; }
  .bc-svc-grid { grid-template-columns: repeat(2, 1fr); }
  .bc-proof-grid { grid-template-columns: 1fr; }
  .bc-final-h { font-size: 38px; }
  .bc-hv-grid { grid-template-columns: 1fr; }
  .bc-hv-meta { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 540px) {
  .bc-svc-grid { grid-template-columns: 1fr; }
  .bc-pillars { grid-template-columns: 1fr; }
  .bc-cat-grid { grid-template-columns: 1fr; }
  .bc-delivery-track { grid-template-columns: 1fr 1fr; }
}