:root {
  color-scheme: light;
  --ink: #17202a;
  --muted: #667085;
  --line: #e6eaf0;
  --paper: #f7f8fa;
  --white: #ffffff;
  --blue: #0e5a8a;
  --green: #26735c;
  --gold: #b8832e;
  --shadow: 0 18px 50px rgba(18, 32, 48, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", "Hiragino Sans", sans-serif;
  color: var(--ink);
  background: var(--paper);
  letter-spacing: 0;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 5vw, 64px);
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: #fff;
  background: var(--ink);
  border-radius: 8px;
  font-size: 13px;
}

.nav {
  display: flex;
  gap: clamp(12px, 3vw, 30px);
  color: var(--muted);
  font-size: 14px;
}

.nav a:hover {
  color: var(--ink);
}

.hero {
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: clamp(26px, 5vw, 72px);
  padding: clamp(48px, 8vw, 96px) clamp(18px, 5vw, 64px);
  background:
    linear-gradient(90deg, rgba(247, 248, 250, 0.94) 0%, rgba(247, 248, 250, 0.72) 49%, rgba(247, 248, 250, 0.38) 100%),
    url("https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?auto=format&fit=crop&w=1800&q=80") center / cover;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(42px, 6vw, 78px);
  line-height: 1.03;
  letter-spacing: 0;
}

.lead {
  max-width: 620px;
  margin-bottom: 30px;
  color: #405064;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  font-weight: 800;
}

.button.primary {
  color: #fff;
  background: var(--ink);
}

.button.ghost {
  background: rgba(255, 255, 255, 0.78);
}

.market-panel {
  align-self: end;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel-top {
  display: flex;
  justify-content: space-between;
  padding: 18px 20px;
  color: #fff;
  background: var(--ink);
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
}

.signal-grid div {
  padding: 22px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.signal-grid span,
.report-card p,
.topic-card p,
.about-band > p,
.footer {
  color: var(--muted);
}

.signal-grid strong {
  display: block;
  margin-top: 8px;
  font-size: 24px;
}

.ticker {
  display: flex;
  gap: 18px;
  align-items: center;
  padding: 18px clamp(18px, 5vw, 64px);
  color: #fff;
  background: var(--blue);
}

.ticker span {
  flex: 0 0 auto;
  color: #dcecf5;
  font-size: 12px;
  font-weight: 800;
}

.ticker p {
  margin: 0;
}

.section {
  padding: clamp(54px, 8vw, 96px) clamp(18px, 5vw, 64px);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 28px;
}

.section-heading h2,
.about-band h2 {
  margin-bottom: 0;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.18;
  letter-spacing: 0;
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.topic-card,
.report-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 10px 24px rgba(18, 32, 48, 0.05);
}

.topic-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  display: block;
}

.topic-card div,
.report-card {
  padding: 22px;
}

.topic-card span,
.tag {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--gold);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.topic-card h3,
.report-card h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

.reports {
  background: #fff;
}

.report-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.report-card a {
  display: inline-flex;
  margin-top: 10px;
  color: var(--blue);
  font-weight: 800;
}

.about-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.72fr);
  gap: 28px;
  align-items: center;
  padding: clamp(48px, 8vw, 84px) clamp(18px, 5vw, 64px);
  color: #fff;
  background: var(--ink);
}

.about-band .eyebrow {
  color: #8bd0b4;
}

.about-band > p {
  color: #c9d2dc;
  line-height: 1.9;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 24px clamp(18px, 5vw, 64px);
  background: #fff;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

@media (max-width: 880px) {
  .site-header,
  .footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .about-band {
    grid-template-columns: 1fr;
  }

  .topic-grid,
  .report-list {
    grid-template-columns: 1fr;
  }

  .market-panel {
    align-self: stretch;
  }
}

@media (max-width: 520px) {
  .nav {
    width: 100%;
    justify-content: space-between;
  }

  .hero {
    min-height: auto;
    padding-top: 44px;
  }

  .ticker {
    align-items: flex-start;
    flex-direction: column;
  }

  .signal-grid {
    grid-template-columns: 1fr;
  }
}