:root {
  --bg-color: #0b0f19;
  --bg-card: rgba(18, 26, 43, 0.75);
  --bg-card-hover: rgba(26, 38, 63, 0.85);
  --border-color: rgba(255, 42, 109, 0.25);
  --border-cyan: rgba(5, 217, 232, 0.3);
  
  --primary-pink: #ff2a6d;
  --primary-pink-glow: rgba(255, 42, 109, 0.5);
  --cyan-accent: #05d9e8;
  --cyan-glow: rgba(5, 217, 232, 0.5);
  --text-main: #f0f6fc;
  --text-sub: #a3b3cc;
  --text-muted: #64748b;
  
  --font-family-base: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-family-display: 'Rajdhani', 'Orbitron', sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-family-base);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Background Canvas */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Utility Classes */
.gradient-text {
  background: linear-gradient(135deg, var(--primary-pink), var(--cyan-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.glow-btn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-pink), #d61c56);
  color: #fff;
  padding: 10px 24px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  box-shadow: 0 0 20px var(--primary-pink-glow);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.glow-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(255, 42, 109, 0.8);
}

.glow-btn.large {
  padding: 18px 36px;
  font-size: 1.1rem;
}

.main-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(90deg, #ff2a6d, #05d9e8);
  color: #fff;
  padding: 16px 32px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  box-shadow: 0 4px 25px rgba(5, 217, 232, 0.4);
  transition: all 0.3s ease;
}

.main-cta-btn:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 6px 35px rgba(255, 42, 109, 0.6);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 15px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-icon {
  font-size: 1.8rem;
}

.logo-text {
  font-family: var(--font-family-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: 2px;
}

.logo-text span {
  color: var(--primary-pink);
}

.logo-text-katakana {
  font-family: var(--font-family-base);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--text-main);
  letter-spacing: 1px;
  background: linear-gradient(90deg, #ffffff, var(--primary-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 24px;
}

.sns-links {
  display: flex;
  list-style: none;
  gap: 16px;
}

.sns-links a {
  color: var(--text-sub);
  transition: color 0.3s;
  display: flex;
  align-items: center;
}

.sns-links a:hover {
  color: var(--cyan-accent);
}

.header-btn {
  font-size: 0.85rem;
}

.header-btn small {
  font-size: 0.65rem;
  opacity: 0.8;
  letter-spacing: 1px;
}

/* Hero Section */
.hero-section {
  padding-top: 150px;
  padding-bottom: 80px;
  text-align: center;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(5, 217, 232, 0.1);
  border: 1px solid var(--cyan-accent);
  color: var(--cyan-accent);
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--cyan-accent);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--cyan-accent);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.5; }
  100% { transform: scale(0.95); opacity: 1; }
}

.hero-title {
  font-size: 3rem;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-sub);
  max-width: 760px;
  margin: 0 auto 40px;
}

.hero-cta-group {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

.sub-cta-btn {
  color: var(--text-main);
  text-decoration: none;
  padding: 16px 28px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  font-weight: 500;
  transition: all 0.3s;
}

.sub-cta-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--cyan-accent);
  color: var(--cyan-accent);
}

/* Video Card */
.video-card {
  max-width: 860px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 12px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
}

.video-container {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 12px;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.video-caption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 10px 4px;
  font-size: 0.85rem;
}

.video-caption span {
  font-family: var(--font-family-display);
  color: var(--text-sub);
  letter-spacing: 1px;
}

.video-caption a {
  color: var(--cyan-accent);
  text-decoration: none;
  font-weight: 700;
}

/* Nav Banner */
.nav-banner {
  background: rgba(18, 26, 43, 0.9);
  border-y: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  margin-bottom: 60px;
}

.nav-banner-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
}

.nav-banner-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 15px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.3s;
}

.nav-banner-item:hover {
  background: rgba(255, 42, 109, 0.1);
  border-color: var(--primary-pink);
  transform: translateY(-2px);
}

.nav-num {
  font-family: var(--font-family-display);
  font-size: 0.8rem;
  color: var(--cyan-accent);
  font-weight: 700;
  letter-spacing: 1px;
}

.nav-label {
  color: var(--text-main);
  font-weight: 700;
  font-size: 1.1rem;
}

/* Section Common */
.section {
  padding: 80px 0;
}

.section-header {
  margin-bottom: 48px;
}

.section-header.center {
  text-align: center;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1.2;
}

.section-title .en {
  display: block;
  font-family: var(--font-family-display);
  font-size: 0.9rem;
  color: var(--primary-pink);
  letter-spacing: 2px;
  margin-bottom: 4px;
}

.section-subtitle {
  color: var(--text-sub);
  margin-top: 12px;
  font-size: 1.05rem;
}

/* News Section */
.news-section {
  background: rgba(0, 0, 0, 0.2);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.link-more {
  color: var(--cyan-accent);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.news-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 24px;
  text-decoration: none;
  color: var(--text-main);
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
}

.news-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--cyan-accent);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(5, 217, 232, 0.15);
}

.news-date {
  font-family: var(--font-family-display);
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 8px;
}

.news-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.4;
}

.news-desc {
  color: var(--text-sub);
  font-size: 0.9rem;
  margin-bottom: 20px;
  flex-grow: 1;
}

.news-arrow {
  color: var(--primary-pink);
  font-size: 0.85rem;
  font-weight: 700;
}

/* Program / Rounds Section */
.rounds-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.round-card {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 36px 28px;
  position: relative;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

.round-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-pink);
  box-shadow: 0 15px 40px rgba(255, 42, 109, 0.2);
}

.round-card.highlight {
  border-color: var(--cyan-accent);
  background: linear-gradient(180deg, rgba(18, 26, 43, 0.9), rgba(5, 217, 232, 0.05));
}

.round-card.highlight:hover {
  box-shadow: 0 15px 40px rgba(5, 217, 232, 0.3);
}

.round-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.round-tag {
  font-family: var(--font-family-display);
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--primary-pink);
  background: rgba(255, 42, 109, 0.1);
  padding: 4px 12px;
  border-radius: 4px;
}

.round-card.highlight .round-tag {
  color: var(--cyan-accent);
  background: rgba(5, 217, 232, 0.1);
}

.round-icon {
  font-size: 2rem;
}

.round-title {
  font-size: 1.8rem;
  font-weight: 900;
  margin-bottom: 16px;
}

.round-title span {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-sub);
  display: block;
}

.round-desc {
  color: var(--text-sub);
  font-size: 0.95rem;
  margin-bottom: 24px;
  line-height: 1.6;
}

.round-features {
  list-style: none;
  margin-bottom: 30px;
  flex-grow: 1;
}

.round-features li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--text-main);
}

.round-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--cyan-accent);
  font-weight: bold;
}

.round-link {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  text-align: center;
  transition: all 0.3s;
}

.round-link:hover {
  background: var(--primary-pink);
  color: #fff;
}

/* Outline Section */
.outline-box {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 50px;
}

.sub-heading {
  font-family: var(--font-family-display);
  color: var(--cyan-accent);
  letter-spacing: 2px;
  font-size: 0.85rem;
}

.outline-box h2 {
  font-size: 2rem;
  margin-bottom: 30px;
}

.outline-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 40px;
}

.outline-table th, .outline-table td {
  padding: 18px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  text-align: left;
}

.outline-table th {
  width: 160px;
  color: var(--text-sub);
  font-size: 0.95rem;
}

.badge-free {
  background: var(--primary-pink);
  color: #fff;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.85rem;
  margin-right: 8px;
}

.outline-action {
  text-align: center;
}

/* Redirect Banner */
.banner-redirect {
  padding: 60px 0 100px;
}

.redirect-card {
  position: relative;
  background: linear-gradient(135deg, rgba(255, 42, 109, 0.15), rgba(5, 217, 232, 0.15));
  border: 1px solid var(--cyan-accent);
  border-radius: 24px;
  padding: 60px 40px;
  text-align: center;
  overflow: hidden;
}

.redirect-card h2 {
  font-size: 2.2rem;
  margin-bottom: 16px;
  font-weight: 900;
}

.redirect-card p {
  color: var(--text-sub);
  font-size: 1.1rem;
  margin-bottom: 36px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Sponsors */
.sponsors-section {
  padding: 60px 0;
  border-t: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(0, 0, 0, 0.4);
}

.sponsor-title {
  font-family: var(--font-family-display);
  font-size: 1.2rem;
  letter-spacing: 2px;
  color: var(--text-sub);
  margin-bottom: 8px;
}

.sponsor-sub {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 30px;
}

.sponsor-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  max-width: 900px;
  margin: 0 auto;
}

.sponsor-tags span {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 8px 18px;
  border-radius: 30px;
  font-size: 0.85rem;
  color: var(--text-sub);
}

/* Footer */
.footer {
  background: #060911;
  padding: 40px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-logo {
  font-family: var(--font-family-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  text-decoration: none;
}

.footer-logo span {
  color: var(--primary-pink);
}

.footer-official-link {
  color: var(--cyan-accent);
  text-decoration: none;
  font-weight: 700;
  display: block;
  margin-top: 6px;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.1rem;
  }
  .header-right .sns-links {
    display: none;
  }
  .outline-box {
    padding: 24px;
  }
  .outline-table th, .outline-table td {
    display: block;
    width: 100%;
    padding: 8px 0;
  }
  .outline-table th {
    border-bottom: none;
    color: var(--cyan-accent);
    margin-top: 12px;
  }
  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
}