/* LUMEN subpage shell - sovereign, hi-fi, no slop */
.subpage { background: var(--paper); color: var(--ink-900); }
.subpage__main { position: relative; }

.subpage__hero {
  position: relative;
  padding: clamp(96px, 14vw, 200px) 0 clamp(56px, 7vw, 96px);
  border-bottom: 1px solid var(--ink-200);
  overflow: hidden;
}
.subpage__hero-bg {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(214,135,72,0.10), transparent 70%),
    radial-gradient(ellipse 80% 60% at 10% 110%, rgba(214,135,72,0.06), transparent 70%);
  animation: subpage-bg 14s ease-in-out infinite alternate;
}
@keyframes subpage-bg { from { transform: translateY(0); } to { transform: translateY(-2%); } }
.subpage__hero .shell { position: relative; z-index: 1; }
.subpage__eyebrow {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--dawn-500, #d68748);
  display: inline-block; margin-bottom: 18px;
}
.subpage__h1 {
  font-family: var(--font-sans); font-weight: 250;
  font-size: clamp(40px, 6vw, 88px); line-height: 1.04;
  letter-spacing: -0.022em; margin: 0 0 28px; max-width: 22ch;
  text-wrap: balance;
}
.subpage__lede {
  font-family: var(--font-serif); font-style: italic;
  font-size: clamp(18px, 1.5vw, 22px); line-height: 1.55;
  color: var(--ink-700); max-width: 64ch; margin: 0;
  text-wrap: pretty;
}

/* Block scaffold */
.sub-block { padding: clamp(64px, 9vw, 120px) 0; border-top: 1px solid var(--ink-200); }
.sub-block__head {
  display: grid; grid-template-columns: 12ch 1fr; gap: 24px;
  align-items: baseline; margin-bottom: clamp(40px, 5vw, 64px);
}
@media (max-width: 720px) { .sub-block__head { grid-template-columns: 1fr; gap: 12px; } }
.sub-block__num {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--ink-500, #6e7480);
}
.sub-block__title {
  font-family: var(--font-sans); font-weight: 300;
  font-size: clamp(28px, 3.4vw, 44px); line-height: 1.06;
  letter-spacing: -0.018em; margin: 0; max-width: 24ch;
  text-wrap: balance;
}

/* Principles grid */
.sub-block__grid {
  display: grid; gap: clamp(20px, 2.5vw, 32px);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.sub-card {
  padding: clamp(24px, 2.5vw, 36px);
  border: 1px solid var(--ink-200);
  background: var(--paper-100, #faf6ee);
  display: flex; flex-direction: column; gap: 12px;
  transition: border-color 0.4s ease, transform 0.4s ease;
}
.sub-card:hover { border-color: var(--dawn-500, #d68748); transform: translateY(-2px); }
.sub-card__num {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.2em;
  color: var(--ink-500, #6e7480); text-transform: uppercase;
}
.sub-card__title {
  font-family: var(--font-sans); font-weight: 500;
  font-size: clamp(18px, 1.4vw, 22px); line-height: 1.2; margin: 0;
  text-wrap: balance;
}
.sub-card__body {
  font-family: var(--font-serif); font-size: 15px; line-height: 1.6;
  color: var(--ink-800, #2a2e36); margin: 0;
  text-wrap: pretty;
}

/* Spec block */
.sub-spec {
  display: grid; grid-template-columns: 1.4fr 1fr;
  gap: clamp(32px, 4vw, 64px); align-items: start;
}
@media (max-width: 900px) { .sub-spec { grid-template-columns: 1fr; } }
.sub-spec__body {
  font-family: var(--font-serif); font-size: clamp(17px, 1.3vw, 19px);
  line-height: 1.65; color: var(--ink-800, #2a2e36); margin: 0;
  text-wrap: pretty; max-width: 60ch;
}
.sub-spec__stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  margin: 0; padding: 0;
  border-top: 1px solid var(--ink-200);
  border-left: 1px solid var(--ink-200);
}
.sub-stat {
  padding: 24px;
  border-right: 1px solid var(--ink-200);
  border-bottom: 1px solid var(--ink-200);
  display: flex; flex-direction: column; gap: 6px;
}
.sub-stat dt {
  font-family: var(--font-sans); font-weight: 300;
  font-size: clamp(28px, 3vw, 40px); line-height: 1; color: var(--ink-900);
  letter-spacing: -0.02em;
}
.sub-stat dd {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--ink-500, #6e7480); margin: 0;
}

/* Pillar block */
.sub-pillar__body {
  font-family: var(--font-serif); font-style: italic;
  font-size: clamp(20px, 1.8vw, 26px); line-height: 1.5;
  color: var(--ink-800, #2a2e36); margin: 0; max-width: 60ch;
  text-wrap: pretty;
}

/* CTA */
.subpage__cta {
  padding: clamp(64px, 9vw, 120px) 0;
  border-top: 1px solid var(--ink-200);
  background: #0a0d12; color: var(--paper);
  text-align: center;
}
.subpage__cta-h {
  font-family: var(--font-sans); font-weight: 250;
  font-size: clamp(32px, 4vw, 56px); line-height: 1.1;
  margin: 0 0 16px; color: rgba(247,228,207,0.95);
}
.subpage__cta-sub {
  font-family: var(--font-serif); font-style: italic;
  font-size: 18px; color: rgba(247,228,207,0.6); margin: 0 0 32px;
}
.subpage__cta .btn {
  background: rgba(214,135,72,0.95); color: #0a0d12;
  border: none; padding: 16px 32px;
  font-family: var(--font-sans); font-weight: 500; letter-spacing: 0.04em;
  text-decoration: none; display: inline-block;
  transition: transform 0.3s ease, background 0.3s ease;
}
.subpage__cta .btn:hover { transform: translateY(-2px); background: rgba(214,135,72,1); }