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

:root {
  --bg: #0a0a0f;
  --bg-card: #141419;
  --bg-input: #1a1a22;
  --accent: #00ff88;
  --accent-dim: rgba(0, 255, 136, 0.15);
  --text: #e0e0e0;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --border: rgba(128, 128, 128, 0.2);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans JP", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 960px; margin: 0 auto; padding: 0 24px; width: 100%; }

/* Header */
header {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  position: sticky;
  top: 0;
  background: rgba(10, 10, 15, 0.9);
  backdrop-filter: blur(12px);
  z-index: 50;
}
header .container { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; color: #fff; text-decoration: none; }
.logo:hover { text-decoration: none; }
.logo .finder { color: var(--accent); }
.logo-icon { width: 32px; height: 32px; }

nav { display: flex; gap: 24px; }
nav a { color: var(--text-secondary); font-size: 14px; transition: color 0.2s; }
nav a:hover { color: var(--accent); text-decoration: none; }

/* Hero */
.hero {
  padding: 80px 0 60px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.hero h1 .accent { color: var(--accent); }
.hero p {
  font-size: clamp(15px, 2.5vw, 18px);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 32px;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: var(--bg);
  font-weight: 700;
  font-size: 16px;
  padding: 14px 32px;
  border-radius: 12px;
  transition: opacity 0.2s;
}
.hero-cta:hover { opacity: 0.85; text-decoration: none; color: var(--bg); }

/* Features */
.features { padding: 40px 0 60px; }
.features h2 {
  font-size: 22px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.feature-card:hover {
  border-color: rgba(0, 255, 136, 0.4);
  box-shadow: 0 0 20px rgba(0, 255, 136, 0.1);
}
.feature-icon { font-size: 28px; margin-bottom: 12px; }
.feature-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }

/* Sources */
.sources { padding: 40px 0 60px; }
.sources h2 {
  font-size: 22px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
}
.sources > .container > p {
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 32px;
}
.source-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}
.source-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  transition: border-color 0.3s;
}
.source-badge:hover { border-color: rgba(0, 255, 136, 0.4); }
.source-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }

/* CTA */
.cta {
  padding: 40px 0 60px;
  text-align: center;
}
.cta-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px 32px;
}
.cta-box h2 { font-size: 22px; font-weight: 700; margin-bottom: 12px; }
.cta-box p { color: var(--text-secondary); font-size: 15px; margin-bottom: 28px; }
.cta-links { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.cta-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  transition: opacity 0.2s;
}
.cta-links a:hover { text-decoration: none; opacity: 0.85; }
.btn-primary { background: var(--accent); color: var(--bg); }
.btn-secondary { background: var(--bg-input); color: var(--text); border: 1px solid var(--border); }

/* Footer */
footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding: 24px 0;
}
footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
footer p { font-size: 13px; color: var(--text-muted); }
footer nav { gap: 20px; }
footer nav a { font-size: 13px; color: var(--text-muted); }
footer nav a:hover { color: var(--accent); }

@media (max-width: 640px) {
  .hero { padding: 48px 0 40px; }
  .cta-box { padding: 32px 20px; }
  footer .container { flex-direction: column; text-align: center; }
}