:root {
  --bg: #f2f2f2;
  --ink: #111;
  --red: #e30613;
  --mute: #666;
  --line: #111;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
}

.nav {
  display: flex;
  justify-content: space-between;
  padding: 1rem clamp(1rem, 3vw, 2rem);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--line);
}

.nav a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.hero {
  padding: 2.5rem clamp(1rem, 3vw, 2rem) 2rem;
  border-bottom: 1px solid var(--line);
  animation: fade 0.7s ease both;
}

.brand {
  font-size: clamp(4.5rem, 18vw, 10rem);
  font-weight: 700;
  line-height: 0.85;
  letter-spacing: -0.06em;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(1.25rem, 2.8vw, 1.85rem);
  font-weight: 700;
  line-height: 1.2;
  max-width: 14ch;
  letter-spacing: -0.02em;
  margin-bottom: 0.85rem;
}

.sub {
  font-size: 0.95rem;
  line-height: 1.5;
  max-width: 36ch;
  color: var(--mute);
  margin-bottom: 1.75rem;
  font-weight: 400;
}

.cta {
  display: inline-block;
  text-decoration: none;
  color: #fff;
  background: var(--red);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.85rem 1.2rem;
  transition: background 0.2s ease;
}

.cta:hover {
  background: var(--ink);
}

.meta {
  display: grid;
  gap: 0.5rem;
  padding: 1.5rem clamp(1rem, 3vw, 2rem);
  border-bottom: 1px solid var(--line);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--mute);
  animation: fade 0.7s 0.1s ease both;
}

.system {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.cell {
  padding: 2rem clamp(1rem, 3vw, 2rem);
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  min-height: 140px;
  display: flex;
  align-items: flex-end;
  animation: fade 0.6s ease both;
}

.cell:nth-child(2n) {
  border-right: none;
}

.cell:nth-child(1) { animation-delay: 0.15s; }
.cell:nth-child(2) { animation-delay: 0.2s; }
.cell:nth-child(3) { animation-delay: 0.25s; }
.cell:nth-child(4) { animation-delay: 0.3s; }

.accent {
  background: var(--red);
  color: #fff;
}

@keyframes fade {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 860px) {
  .grid {
    grid-template-columns: 2fr 1fr;
    grid-template-rows: auto auto;
  }

  .hero {
    grid-column: 1;
    grid-row: 1;
    border-right: 1px solid var(--line);
    min-height: 70vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
  }

  .meta {
    grid-column: 2;
    grid-row: 1;
    border-bottom: 1px solid var(--line);
    align-content: end;
  }

  .system {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}