:root {
  --bg-main: #0a0f1d;
  --bg-card: #121a2d;
  --bg-card-hover: #1a253e;
  --text-main: #f0f4f8;
  --text-sub: #94a3b8;
  --accent: #0284c7;
  --accent-glow: #38bdf8;
  --accent-secondary: #006D41;
  --border: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(56, 189, 248, 0.5);
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
}

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

body {
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: 580px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Expired Overlay */
.expired-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 15, 29, 0.96);
  backdrop-filter: blur(12px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.expired-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 24px;
  text-align: center;
  max-width: 440px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}
.expired-icon {
  font-size: 3.5rem;
  margin-bottom: 16px;
}
.expired-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: #fff;
}
.expired-text {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 24px;
}
.expired-footer {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* Hero */
.hero {
  position: relative;
  padding: 60px 0 50px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  background: radial-gradient(circle at 50% 20%, rgba(2, 132, 199, 0.25) 0%, transparent 70%);
}
.hero-tag {
  display: inline-block;
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.4);
  color: var(--accent-glow);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  padding: 5px 16px;
  border-radius: 9999px;
  margin-bottom: 20px;
}
.hero-title {
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1.25;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.hero-catch {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-glow);
  margin-bottom: 24px;
}
.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 32px;
}
.badge {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
}
.badge-accent {
  background: rgba(2, 132, 199, 0.2);
  border-color: rgba(56, 189, 248, 0.4);
  color: var(--accent-glow);
}

/* Button */
.btn {
  display: inline-block;
  text-decoration: none;
  font-weight: 700;
  border-radius: 9999px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn-primary {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(2, 132, 199, 0.4);
}
.btn-hero {
  width: 100%;
  max-width: 340px;
  padding: 16px 24px;
  font-size: 1.05rem;
}
.btn-cta {
  width: 100%;
  padding: 18px 24px;
  font-size: 1.1rem;
}
.pulse {
  animation: pulse-glow 2.5s infinite;
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(56, 189, 248, 0.5); }
  50% { box-shadow: 0 0 0 12px rgba(56, 189, 248, 0); }
}

/* Section Common */
.section {
  padding: 48px 0;
  border-bottom: 1px solid var(--border);
}
.section-header {
  text-align: center;
  margin-bottom: 32px;
}
.section-sub {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-glow);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.section-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  margin-top: 4px;
}

/* Info Grid */
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  text-align: center;
}
.info-icon {
  font-size: 1.6rem;
  margin-bottom: 6px;
}
.info-label {
  font-size: 0.75rem;
  color: var(--text-sub);
  font-weight: 600;
  margin-bottom: 4px;
}
.info-val {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
}

/* Details */
.details-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
}
.details-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  border-left: 4px solid var(--accent-glow);
  padding-left: 12px;
}
.details-desc {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 24px;
}
.details-points {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.point-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
}
.point-num {
  font-family: 'Inter', sans-serif;
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--accent-glow);
  line-height: 1;
  padding-top: 2px;
}
.point-text {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

/* CTA */
.cta-card {
  background: linear-gradient(180deg, var(--bg-card) 0%, rgba(2, 132, 199, 0.15) 100%);
  border: 1px solid var(--border-focus);
  border-radius: var(--radius-lg);
  padding: 36px 20px;
  text-align: center;
}
.cta-tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-glow);
  letter-spacing: 0.15em;
}
.cta-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: #fff;
  margin: 8px 0 12px;
}
.cta-desc {
  font-size: 0.85rem;
  color: var(--text-sub);
  margin-bottom: 24px;
}
.cta-note {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.45);
  margin-top: 14px;
}

/* Footer */
.footer {
  padding: 36px 0;
  text-align: center;
  border-top: 1px solid var(--border);
}
.footer-host {
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 6px;
}
.footer-copy {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.4);
}