/* ===================================================================
   Subpage styles — extends styles.css
   Black hero with back link, white content column, rule sections.
   =================================================================== */

/* ============ SUBPAGE HERO ============ */
.sub-hero {
  background: var(--color-black);
  color: var(--color-white);
  padding: 140px 24px 72px;
  position: relative;
  overflow: hidden;
}

.sub-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent 0px,
    transparent 3px,
    rgba(255, 255, 255, 0.025) 3px,
    rgba(255, 255, 255, 0.025) 4px
  );
  pointer-events: none;
}

.sub-hero-inner {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
}

.back-link {
  display: inline-block;
  font-size: 0.82rem;
  color: var(--color-gray-400);
  text-decoration: none;
  margin-bottom: 32px;
  transition: color var(--transition-fast);
}

.back-link:hover { color: var(--green); }

.sub-hero .hero-eyebrow { margin-bottom: 16px; }

.sub-hero-title {
  font-size: clamp(2.6rem, 7vw, 4.5rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  line-height: 1;
}

.sub-hero-lead {
  margin-top: 20px;
  max-width: 640px;
  font-size: 1.08rem;
  line-height: 1.7;
  color: var(--color-gray-300);
}

/* ============ CONTENT ============ */
.sub-content {
  max-width: 860px;
  margin: 0 auto;
  padding: 72px 24px 96px;
}

.rule-section {
  padding: 40px 0;
  border-bottom: 1px solid var(--color-gray-100);
}

.rule-section:first-child { padding-top: 0; }

.rs-title {
  font-size: clamp(1.5rem, 3.5vw, 2.1rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0;
  margin-bottom: 20px;
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.rs-num {
  font-size: 0.55em;
  font-weight: 700;
  color: var(--green-dark);
  border: 1px solid var(--green-dark);
  padding: 3px 8px;
  flex-shrink: 0;
  transform: translateY(-0.2em);
}

.rs-intro {
  color: var(--color-gray-500);
  max-width: 720px;
  margin-bottom: 18px;
}

.rs-intro a { color: var(--green-dark); font-weight: 600; }

.rs-sub {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--green-dark);
  margin: 28px 0 12px;
}

.rs-list {
  list-style: none;
  max-width: 760px;
}

.rs-list li {
  position: relative;
  padding: 11px 0 11px 26px;
  border-bottom: 1px solid var(--color-gray-100);
  color: var(--color-gray-500);
  font-size: 0.98rem;
  line-height: 1.6;
}

.rs-list li:last-child { border-bottom: none; }

.rs-list li::before {
  content: '›';
  position: absolute;
  left: 2px;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-black);
}

.rs-list.check li::before {
  content: '[x]';
  font-size: 0.75rem;
  left: 0;
  top: 15px;
  color: var(--green-dark);
}

.rs-list.check li { padding-left: 36px; }

.rs-list strong { color: var(--color-black); }

.rs-list a { color: var(--green-dark); font-weight: 600; }

.rs-note {
  margin-top: 20px;
  border-left: 4px solid var(--green-dark);
  background: var(--color-off-white);
  padding: 18px 22px;
  max-width: 760px;
}

.rs-note p { color: var(--color-gray-500); font-size: 0.95rem; }
.rs-note strong { color: var(--color-black); }
.rs-note a { color: var(--green-dark); font-weight: 600; }

/* ============ HOUSE RULES GRID ============ */
.house-rule-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 8px;
}

.house-rule {
  border: 2px solid var(--color-black);
  padding: 26px 26px 28px;
  transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.house-rule:hover {
  transform: translateY(-3px);
  box-shadow: 6px 6px 0 var(--green-dark);
}

.hr-num {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--green-dark);
  margin-bottom: 10px;
}

.house-rule h3 {
  font-size: 1.2rem;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.house-rule p { color: var(--color-gray-500); font-size: 0.97rem; }
.house-rule a { color: var(--green-dark); font-weight: 600; }

/* ============ DEADLINE (subpage variant) ============ */
.sub-deadline {
  margin-top: 8px;
  background: var(--color-black);
}

.sub-deadline .deadline-note { color: var(--color-gray-300); }

/* ============ FOOTER ACTIONS ============ */
.sub-footer-actions {
  margin-top: 56px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .sub-hero { padding: 110px 20px 56px; }
  .sub-content { padding: 48px 20px 72px; }
  .rule-section { padding: 32px 0; }
}