* {
  box-sizing: border-box;
}

:root {
  --bg: #0b1020;
  --panel: rgba(255, 255, 255, 0.055);
  --panel-border: rgba(255, 255, 255, 0.10);
  --text: #f5f7fb;
  --muted: #a9b2c6;
  --accent: #72e6d1;
  --accent-soft: rgba(114, 230, 209, 0.12);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 75% 12%, rgba(60, 118, 173, 0.22), transparent 28rem),
    radial-gradient(circle at 10% 40%, rgba(55, 170, 154, 0.10), transparent 24rem),
    var(--bg);
  line-height: 1.75;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.site-header nav a {
  color: var(--muted);
  font-size: 0.9rem;
}

main {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  min-height: 68vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 820px;
  padding: 70px 0 90px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.2em;
}

h1 {
  margin: 0;
  max-width: 820px;
  font-size: clamp(2.7rem, 7vw, 5.6rem);
  line-height: 1.08;
  letter-spacing: -0.055em;
}

.lead {
  max-width: 680px;
  margin: 32px 0 36px;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.14rem);
}

.primary-button,
.project-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 750;
}

.primary-button {
  background: var(--text);
  color: var(--bg);
}

.projects {
  padding: 70px 0 120px;
}

.section-heading {
  margin-bottom: 30px;
}

h2 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  letter-spacing: -0.035em;
}

.project-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: end;
  padding: clamp(26px, 5vw, 48px);
  border: 1px solid var(--panel-border);
  border-radius: 26px;
  background: var(--panel);
  backdrop-filter: blur(12px);
}

.status {
  display: inline-block;
  margin-bottom: 18px;
  padding: 5px 10px;
  border: 1px solid rgba(114, 230, 209, 0.25);
  border-radius: 999px;
  color: var(--accent);
  background: var(--accent-soft);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

h3 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  letter-spacing: -0.04em;
}

.project-card p {
  max-width: 650px;
  margin: 0;
  color: var(--muted);
}

.project-link {
  border: 1px solid var(--panel-border);
  white-space: nowrap;
}

.project-link span {
  margin-left: 10px;
  color: var(--accent);
}

.coming-soon {
  min-height: 150px;
  margin-top: 18px;
  border: 1px dashed var(--panel-border);
  border-radius: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--muted);
}

.coming-soon span {
  color: var(--accent);
  font-size: 1.5rem;
}

footer {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 30px 0 50px;
  border-top: 1px solid var(--panel-border);
  color: var(--muted);
  font-size: 0.82rem;
}

@media (max-width: 720px) {
  .site-header {
    min-height: 68px;
  }

  .hero {
    min-height: auto;
    padding: 90px 0 110px;
  }

  .project-card {
    grid-template-columns: 1fr;
    align-items: start;
  }
}