/* ===== Landing page (home) ===== */
.landing {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  background-image:
    linear-gradient(var(--color-line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line-soft) 1px, transparent 1px);
  background-size: 60px 60px;
  background-position: -1px -1px;
}

.landing__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 40px;
}
@media (max-width: 768px) {
  .landing__header { padding: 20px 24px; }
}

.landing__brand {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 500;
  color: var(--color-ink);
  letter-spacing: 0.04em;
}

.landing__sub {
  font-size: 11px;
  color: var(--color-ink-mute);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-family: var(--font-body);
}

.landing__hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px 24px 80px;
  gap: 24px;
}

.landing__kicker {
  font-size: 13px;
  letter-spacing: 0.25em;
  color: var(--color-accent);
  font-family: var(--font-body);
  margin: 0;
}

.landing__title {
  font-family: var(--font-display);
  font-size: clamp(36px, 5.4vw, 64px);
  line-height: 1.18;
  letter-spacing: 0.04em;
  color: var(--color-ink);
  font-weight: 400;
  margin: 0;
  max-width: 720px;
}
.landing__title-row {
  display: block;
}
.landing__title-row--accent {
  color: var(--color-accent);
}

.landing__lede {
  font-size: 15px;
  color: var(--color-ink-soft);
  line-height: 1.8;
  letter-spacing: 0.04em;
  max-width: 480px;
  margin: 0;
}

.landing__cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 36px;
  background: var(--color-ink);
  color: #fff;
  border-radius: 999px;
  font-size: 15px;
  letter-spacing: 0.08em;
  font-weight: 500;
  margin-top: 8px;
  transition: background 0.3s, transform 0.3s var(--ease-out);
}
.landing__cta:hover {
  background: var(--color-accent-deep);
  transform: translateY(-2px);
}
.landing__cta .arrow {
  display: inline-block;
  transition: transform 0.3s var(--ease-out);
}
.landing__cta:hover .arrow { transform: translateX(4px); }

.landing__decor {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 56px;
  opacity: 0.95;
  color: var(--color-line);
}
.landing__decor-cell {
  position: relative;
  width: 84px;
  height: 84px;
  background: var(--color-paper);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (max-width: 640px) {
  .landing__decor-cell { width: 64px; height: 64px; }
  .landing__decor { gap: 10px; }
}
.landing__decor-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.landing__decor-char {
  font-family: var(--font-display);
  font-size: 44px;
  color: var(--color-accent);
  line-height: 1;
}
@media (max-width: 640px) {
  .landing__decor-char { font-size: 32px; }
}
.landing__decor-char--kai { font-family: var(--font-display); }

.landing__footer {
  text-align: center;
  padding: 24px;
  font-size: 12px;
  color: var(--color-ink-mute);
  letter-spacing: 0.08em;
}