/* Home-page-only styles */
.hero {
  position: relative;
  padding: 64px 0 80px;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 64px;
  align-items: center;
}
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  background: rgba(82,224,255,0.08);
  border: 1px solid rgba(82,224,255,0.3);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(2.6rem, 5.4vw, 4.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.0;
  margin-bottom: 24px;
}
.hero h1 .accent {
  background: linear-gradient(135deg, #52e0ff 0%, #b6f3ff 60%, #52e0ff 100%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--ink-1);
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.55;
}
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-meta {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.hero-meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hero-meta-item .k {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-2);
}
.hero-meta-item .v {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink-0);
  font-size: 1rem;
}

/* SLD wrap */
.sld-wrap {
  background: linear-gradient(180deg, var(--bg-2) 0%, var(--bg-1) 100%);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  padding: 24px;
  position: relative;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.sld-wrap::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(82,224,255,0.4), transparent 30%, transparent 70%, rgba(82,224,255,0.2));
  -webkit-mask: linear-gradient(#000, #000) content-box, linear-gradient(#000, #000);
  mask: linear-gradient(#000, #000) content-box, linear-gradient(#000, #000);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  padding: 1px;
}
.sld-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--line-2);
}
.sld-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan);
  letter-spacing: 0.1em;
}
.sld-coord { color: var(--ink-3); font-size: 0.68rem; letter-spacing: 0.1em; }
.sld-svg { width: 100%; height: auto; display: block; }

/* Disciplines grid */
.disc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 920px) { .disc-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 580px) { .disc-grid { grid-template-columns: 1fr; } }
.disc-card {
  padding: 28px 24px;
  position: relative;
  min-height: 200px;
  display: flex;
  flex-direction: column;
}
.disc-card .code {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--cyan);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 4px 8px;
  border: 1px solid rgba(82,224,255,0.3);
  border-radius: 4px;
  align-self: flex-start;
  margin-bottom: 16px;
  background: rgba(82,224,255,0.05);
}
.disc-card h3 { color: var(--ink-0); margin-bottom: 8px; font-size: 1.15rem; }
.disc-card p { color: var(--ink-2); font-size: 0.92rem; margin: 0; }
.disc-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(300px 200px at var(--mx, 50%) var(--my, 0%), rgba(82,224,255,0.08), transparent 60%);
  opacity: 0;
  transition: opacity 0.2s;
}
.disc-card:hover::after { opacity: 1; }

/* CTA strip */
.cta-strip {
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  padding: 56px 48px;
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 32px;
  align-items: center;
  background:
    radial-gradient(600px 300px at 90% 50%, rgba(82,224,255,0.10), transparent 70%),
    linear-gradient(180deg, var(--bg-2), var(--bg-1));
  position: relative;
  overflow: hidden;
}
@media (max-width: 800px) {
  .cta-strip { grid-template-columns: 1fr; padding: 36px 28px; }
}
.cta-strip h2 { margin-bottom: 12px; }
.cta-strip .right {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

/* Featured projects preview */
.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 900px) { .preview-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .preview-grid { grid-template-columns: 1fr; } }

/* ============ Mobile (additive) ============ */
@media (max-width: 720px) {
  .hero { padding: 36px 0 48px; }
  .hero-sub { font-size: 1rem; margin-bottom: 28px; }
  .hero-cta { gap: 10px; margin-bottom: 28px; }
  .hero-meta { gap: 18px 24px; padding-top: 20px; }
  .sld-wrap { padding: 18px; }
  .cta-strip { padding: 32px 22px; }
  .cta-strip .right { justify-content: flex-start; }
  .disc-card { min-height: auto; padding: 22px 20px; }
}

@media (max-width: 480px) {
  .hero { padding: 24px 0 36px; }
  .hero-cta .btn { width: 100%; justify-content: center; }
  .hero-meta-item .v { font-size: .92rem; }
  .sld-wrap { padding: 14px; }
  .sld-header { flex-wrap: wrap; gap: 6px; }
  .cta-strip { padding: 26px 18px; text-align: left; }
  .cta-strip .right { width: 100%; }
  .cta-strip .right .btn { flex: 1; justify-content: center; }
}