.subpage-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 162px 0 92px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 76% 30%, rgba(37, 183, 232, 0.14), transparent 31%),
    radial-gradient(circle at 12% 22%, rgba(27, 90, 138, 0.13), transparent 25%),
    linear-gradient(180deg, #071321, var(--ink));
}

.subpage-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  opacity: 0.05;
  background-image: linear-gradient(rgba(255,255,255,.3) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.3) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 92%);
}

.breadcrumb {
  margin: 0 0 28px;
  display: flex;
  align-items: center;
  gap: 9px;
  color: #71899d;
  font-size: .76rem;
}

.breadcrumb a {
  color: var(--muted-bright);
  text-decoration: none;
}

.breadcrumb a:hover { color: var(--cyan-bright); }

.subpage-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, .72fr);
  align-items: center;
  gap: 86px;
}

.subpage-hero h1 {
  max-width: 790px;
  margin: 0;
  font-size: clamp(3rem, 5.2vw, 4.8rem);
  font-weight: 730;
  letter-spacing: -.05em;
  line-height: 1.03;
}

.subpage-hero h1 span { color: var(--cyan-bright); }

.subpage-lead {
  max-width: 730px;
  margin: 27px 0 32px;
  color: var(--muted-bright);
  font-size: clamp(1.04rem, 1.4vw, 1.18rem);
  line-height: 1.78;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.hero-proof {
  overflow: hidden;
  border: 1px solid var(--line-bright);
  border-radius: 18px;
  background: rgba(10, 27, 44, .82);
  box-shadow: var(--shadow);
}

.hero-proof-head {
  padding: 15px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  color: #6c879b;
  font: 700 .6rem ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: .11em;
}

.proof-live { display: inline-flex; align-items: center; gap: 7px; color: #83ad9d; }
.proof-live i { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 9px rgba(74,222,161,.6); }
.proof-list { margin: 0; padding: 7px 20px; list-style: none; }
.proof-list li { padding: 16px 0; display: grid; grid-template-columns: 28px 1fr; gap: 11px; border-bottom: 1px solid var(--line); }
.proof-list li:last-child { border-bottom: 0; }
.proof-list b { width: 23px; height: 23px; display: grid; place-items: center; border-radius: 50%; background: var(--green-soft); color: var(--green); font-size: .68rem; }
.proof-list span { display: flex; flex-direction: column; }
.proof-list strong { color: var(--text); font-size: .83rem; }
.proof-list small { margin-top: 2px; color: #748da0; font-size: .69rem; line-height: 1.5; }

.page-section { padding: 112px 0; border-bottom: 1px solid var(--line); background: #081421; }
.page-section:nth-of-type(even) { background: var(--ink-deep); }
.page-section h2, .conversion-band h2 { margin: 0; font-size: clamp(2.2rem, 4vw, 3.5rem); font-weight: 720; letter-spacing: -.045em; line-height: 1.08; }
.section-intro { margin-bottom: 52px; display: grid; grid-template-columns: 1fr .84fr; align-items: end; gap: 80px; }
.section-intro > p { margin: 0; color: var(--muted); line-height: 1.8; }
.section-intro.single { max-width: 760px; display: block; }
.section-intro.single > p { margin-top: 20px; }

.architecture-flow {
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  align-items: stretch;
  gap: 28px;
  list-style: none;
}

.architecture-step {
  position: relative;
  min-height: 205px;
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: linear-gradient(145deg, rgba(18,38,60,.85), rgba(9,23,38,.95));
}

.architecture-step:not(:last-child)::after {
  content: "→";
  position: absolute;
  top: 50%;
  right: -22px;
  color: var(--cyan);
  font: 700 1rem ui-monospace, monospace;
}

.step-number { color: #638196; font: 700 .59rem ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .12em; }
.architecture-step h3 { margin: 31px 0 10px; font-size: 1rem; line-height: 1.3; }
.architecture-step p { margin: 0; color: var(--muted); font-size: .77rem; line-height: 1.65; }
.architecture-step.highlight { border-color: rgba(37,183,232,.4); background: linear-gradient(145deg, #10283e, #0a1a2b); }

.mode-grid, .control-grid, .resource-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 17px;
}

.mode-card, .control-card, .resource-card {
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 17px;
  background: rgba(14,31,50,.78);
}

.mode-card { min-height: 390px; display: flex; flex-direction: column; }
.mode-label { width: fit-content; padding: 6px 9px; border-radius: 6px; background: rgba(37,183,232,.1); color: var(--cyan-bright); font: 750 .62rem ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .1em; }
.mode-card h3, .control-card h3, .resource-card h3 { margin: 24px 0 13px; font-size: 1.35rem; letter-spacing: -.02em; }
.mode-card > p, .control-card p, .resource-card p { margin: 0; color: var(--muted); font-size: .86rem; line-height: 1.75; }
.mode-card ul { margin: auto 0 0; padding: 24px 0 0; border-top: 1px solid var(--line); list-style: none; }
.mode-card li { position: relative; margin-top: 9px; padding-left: 21px; color: var(--muted-bright); font-size: .79rem; }
.mode-card li::before { content: "+"; position: absolute; left: 0; color: var(--green); font-weight: 800; }

.control-grid { grid-template-columns: repeat(3, 1fr); }
.control-card { min-height: 275px; }
.control-index { color: var(--cyan); font: 700 .62rem ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .11em; }
.control-card h3 { margin-top: 37px; }
.scope-note {
  margin-top: 24px;
  padding: 20px 22px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  border: 1px solid rgba(255,184,92,.2);
  border-radius: 12px;
  background: rgba(255,184,92,.055);
  color: #c3b49e;
  font-size: .8rem;
  line-height: 1.7;
}
.scope-note strong { color: var(--orange); }
.scope-note a { color: var(--cyan-bright); text-underline-offset: 3px; }
.scope-note a:hover { color: var(--text); }

.assurance-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(10,26,42,.9);
}
.assurance-item { min-height: 138px; padding: 26px; border-right: 1px solid var(--line); }
.assurance-item:last-child { border-right: 0; }
.assurance-item small { color: #6d879a; font: 700 .58rem ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .1em; }
.assurance-item strong { margin-top: 16px; display: block; font-size: 1.02rem; line-height: 1.35; }

.trust-table { width: 100%; border-collapse: separate; border-spacing: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 16px; background: #0b1929; }
.trust-table th, .trust-table td { padding: 20px 22px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.trust-table tr:last-child td, .trust-table tr:last-child th { border-bottom: 0; }
.trust-table th { background: rgba(255,255,255,.025); color: #6f899c; font: 700 .62rem ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .1em; }
.trust-table td { color: var(--muted); font-size: .82rem; line-height: 1.67; }
.trust-table td:first-child { color: var(--text); font-weight: 700; }
.trust-table tbody th { background: transparent; color: var(--text); font-family: inherit; font-size: .82rem; letter-spacing: 0; line-height: 1.67; }
.trust-table caption { padding: 0 0 14px; color: var(--muted); font-size: .74rem; line-height: 1.6; text-align: left; caption-side: top; }
.support-table { margin-top: 28px; }
.status-pill { width: fit-content; padding: 5px 9px; display: inline-flex; align-items: center; gap: 7px; border: 1px solid rgba(37,183,232,.2); border-radius: 999px; background: rgba(37,183,232,.07); color: var(--cyan-bright); font-size: .7rem; font-weight: 700; white-space: nowrap; }
.status-pill.planned { border-color: rgba(255,184,92,.2); background: rgba(255,184,92,.07); color: var(--orange); }

.responsibility-grid { display: grid; grid-template-columns: .62fr 1fr 1fr; overflow: hidden; border: 1px solid var(--line); border-radius: 16px; background: #0b1929; }
.responsibility-grid > div { padding: 18px 20px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--muted); font-size: .79rem; line-height: 1.6; }
.responsibility-grid > div:nth-child(3n) { border-right: 0; }
.responsibility-grid > div:nth-last-child(-n+3) { border-bottom: 0; }
.responsibility-grid .table-head { background: rgba(255,255,255,.025); color: #6f899c; font: 700 .59rem ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .09em; }
.responsibility-grid .row-title { color: var(--text); font-weight: 700; }

.support-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 17px; }
.support-card { padding: 32px; border: 1px solid var(--line); border-radius: 17px; background: rgba(14,31,50,.78); }
.support-card h3 { margin: 0 0 13px; font-size: 1.25rem; }
.support-card p { margin: 0; color: var(--muted); font-size: .86rem; line-height: 1.75; }
.support-card a { color: var(--cyan-bright); }
.support-card .text-link { margin-top: 24px; display: inline-flex; }

.resource-grid { grid-template-columns: repeat(3, 1fr); }
.resource-card { min-height: 300px; display: flex; flex-direction: column; }
.resource-card .text-link { margin-top: auto; padding-top: 26px; }
.resource-meta { margin-top: 16px; color: #6f899c; font: 700 .6rem ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .08em; }

.conversion-band { padding: 90px 0; background: var(--ink); }
.conversion-band-inner { padding: 55px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 46px; border: 1px solid var(--line-bright); border-radius: 20px; background: radial-gradient(circle at 8% 50%, rgba(37,183,232,.13), transparent 25%), linear-gradient(110deg, #0b2a3c, #0c1a2c 60%, #12243a); }
.conversion-band p:not(.kicker) { max-width: 650px; margin: 17px 0 0; color: var(--muted); line-height: 1.75; }

.plain-footer-note { color: #6f899c; font-size: .7rem; }

@media (max-width: 1050px) {
  .subpage-hero-grid { grid-template-columns: 1fr .72fr; gap: 45px; }
  .architecture-flow { grid-template-columns: repeat(3, 1fr); }
  .architecture-step:not(:last-child)::after { display: none; }
  .control-grid, .resource-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 780px) {
  .subpage-hero { padding: 126px 0 68px; }
  .subpage-hero-grid, .section-intro, .conversion-band-inner { grid-template-columns: 1fr; }
  .hero-proof { margin-top: 12px; }
  .page-section { padding: 82px 0; }
  .section-intro { gap: 20px; margin-bottom: 38px; }
  .architecture-flow, .mode-grid, .control-grid, .resource-grid, .support-grid { grid-template-columns: 1fr; }
  .assurance-bar { grid-template-columns: 1fr 1fr; }
  .assurance-item:nth-child(2) { border-right: 0; }
  .assurance-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .responsibility-grid { grid-template-columns: 1fr; }
  .responsibility-grid .table-head { display: none; }
  .responsibility-grid > div { border-right: 0; }
  .responsibility-grid > div:nth-last-child(-n+3) { border-bottom: 1px solid var(--line); }
  .responsibility-grid > div:last-child { border-bottom: 0; }
  .responsibility-grid .row-title { padding-bottom: 7px; border-bottom: 0; background: rgba(255,255,255,.025); }
  .trust-table { display: block; overflow-x: auto; }
  .conversion-band-inner { padding: 36px 27px; }
}

@media (max-width: 520px) {
  .subpage-hero h1 { font-size: 2.7rem; }
  .assurance-bar { grid-template-columns: 1fr; }
  .assurance-item, .assurance-item:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--line); }
  .assurance-item:last-child { border-bottom: 0; }
  .mode-card, .control-card, .resource-card, .support-card { padding: 25px; }
}