/* AI TRANSMIT LTD — corporate site, builds on styles.css tokens */
body { overflow-x: clip; }
.ai-chip { white-space: nowrap; }

/* Hero */
.hero-corp { position: relative; padding: 140px 0 110px; overflow: hidden; }
.hero-glow {
  position: absolute; top: -220px; left: 50%; width: 1000px; height: 800px;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(16,172,220,0.16), transparent 62%);
  filter: blur(50px); pointer-events: none;
}
.hero-inner { position: relative; text-align: center; max-width: 980px; margin: 0 auto; }

.display-xl {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800; letter-spacing: -0.035em; line-height: 0.98;
  font-size: clamp(48px, 7vw, 104px);
}
.display-xl .accent { color: var(--c-primary); }
.hero-sub {
  font-size: clamp(17px, 1.7vw, 21px); line-height: 1.6; color: var(--t2);
  max-width: 620px; margin: 26px auto 0;
}
.hero-cta { display: flex; gap: 12px; justify-content: center; margin-top: 38px; flex-wrap: wrap; }

/* generic section heading */
.h2-corp {
  font-family: 'Plus Jakarta Sans', sans-serif; font-weight: 800;
  letter-spacing: -0.025em; line-height: 1.06;
  font-size: clamp(30px, 3.6vw, 50px);
}
.section-head { max-width: 640px; }
.section-head.center { margin: 0 auto; text-align: center; }
.lead-corp { font-size: 17px; line-height: 1.65; color: var(--t2); margin-top: 18px; }

/* narrative band */
.narrative { padding: 80px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.narrative-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 56px; align-items: center; }
.narrative-lines { display: grid; gap: 18px; }
.narrative-line {
  font-family: 'Plus Jakarta Sans', sans-serif; font-weight: 700;
  font-size: clamp(22px, 2.4vw, 32px); letter-spacing: -0.02em; line-height: 1.25;
  color: var(--t1); display: flex; align-items: baseline; gap: 16px;
}
.narrative-line .idx {
  font-family: 'Geist Mono', monospace; font-size: 13px; font-weight: 500;
  color: var(--c-primary); flex-shrink: 0; padding-top: 6px; letter-spacing: 0;
}
.narrative-line.dim { color: var(--t2); font-weight: 600; }

/* product constellation */
/* partnership architecture diagram */
.arch {
  position: relative; border: 1px solid var(--line); border-radius: 20px;
  background: var(--bg2); padding: 28px; box-shadow: var(--sh-card);
}
.arch-layer { padding: 20px; border-radius: 14px; background: var(--surface); border: 1px solid var(--line2); }
.arch-layer.arch-ours { background: var(--c-primary-dim); border-color: var(--c-primary-border); }
.arch-label {
  font-family: 'Geist Mono', monospace; font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--t3); margin-bottom: 14px;
}
.arch-ours .arch-label { color: var(--c-primary); }
.arch-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.arch-chip {
  padding: 8px 14px; border-radius: 8px; font-size: 13px; font-weight: 600;
  background: var(--bg2); border: 1px solid var(--line2); color: var(--t1);
}
.arch-chip.core { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }
.arch-join { display: flex; align-items: center; justify-content: center; gap: 14px; padding: 14px 0; }
.arch-join::before, .arch-join::after { content: ""; height: 1px; flex: 1; background: var(--line2); }
.arch-join-label { font-family: 'Geist Mono', monospace; font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--t4); }
.arch-caption { text-align: center; font-size: 14px; font-weight: 600; color: var(--t1); margin-top: 22px; }
.arch-model { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 16px; }
.arch-model-item {
  display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--t2);
  font-family: 'Geist Mono', monospace; letter-spacing: 0.02em;
}
.arch-model-item::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--c-primary); flex-shrink: 0; }

/* cards grid */
.do-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.do-card { padding: 30px; display: flex; flex-direction: column; min-height: 280px; }
.do-num {
  font-family: 'Geist Mono', monospace; font-size: 12px; letter-spacing: 0.16em;
  color: var(--t4); margin-bottom: 24px;
}
.do-ico {
  width: 46px; height: 46px; border-radius: 11px; display: grid; place-items: center;
  background: var(--c-primary-dim); border: 1px solid var(--c-primary-border);
  color: var(--c-primary); margin-bottom: 20px;
}
.do-title { font-size: 21px; font-weight: 700; letter-spacing: -0.01em; }
.do-body { color: var(--t2); font-size: 14.5px; line-height: 1.6; margin-top: 10px; }
.do-tag {
  margin-top: auto; padding-top: 18px; font-family: 'Geist Mono', monospace;
  font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--t3);
}

/* products */
.product-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.product-card {
  padding: 30px; display: flex; flex-direction: column; gap: 4px;
  transition: border-color .15s, transform .15s;
}
.product-card:hover { border-color: var(--c-primary-border); transform: translateY(-2px); }
.product-card .pill { width: fit-content; margin-bottom: 16px; }
.product-name { font-size: 21px; font-weight: 700; letter-spacing: -0.01em; }
.product-body { color: var(--t2); font-size: 14.5px; line-height: 1.6; margin-top: 8px; }
.product-link {
  margin-top: auto; padding-top: 18px; font-family: 'Geist Mono', monospace;
  font-size: 12px; color: var(--c-primary); display: flex; align-items: center; gap: 6px;
}

/* approach */
.approach-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; background: var(--bg2); }
.approach-cell { padding: 28px 24px; border-right: 1px solid var(--line); min-height: 200px; }
.approach-cell:last-child { border-right: 0; }
.approach-k {
  font-family: 'Geist Mono', monospace; font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--c-primary); margin-bottom: 18px;
}
.approach-t { font-size: 19px; font-weight: 700; letter-spacing: -0.01em; }
.approach-b { color: var(--t2); font-size: 14px; line-height: 1.6; margin-top: 8px; }

/* CTA */
.cta-corp { padding: 120px 0; position: relative; overflow: hidden; border-top: 1px solid var(--line); }
.cta-corp .hero-glow { top: -300px; }

/* footer */
.footer-corp { border-top: 1px solid var(--line); padding: 56px 0 32px; background: var(--bg2); }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 44px; }
.footer-col-label { font-family: 'Geist Mono', monospace; font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--t4); margin-bottom: 14px; }
.footer-col ul { list-style: none; display: grid; gap: 10px; }
.footer-col a { color: var(--t2); font-size: 14px; transition: color .15s; }
.footer-col a:hover { color: var(--t1); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 22px; border-top: 1px solid var(--line); color: var(--t4); font-size: 12px; }
.footer-logo { height: 24px; width: auto; display: block; margin-bottom: 14px; }

/* reveal */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 920px) {
  .narrative-grid { grid-template-columns: 1fr; }
  .do-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .approach-grid { grid-template-columns: 1fr 1fr; }
  .approach-cell:nth-child(2) { border-right: 0; }
  .approach-cell { border-bottom: 1px solid var(--line); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .footer-logo { height: 18px; margin-bottom: 12px; }
  .footer-tag { display: none; }
}