:root {
  --color-bg: #0b1120;
  --color-surface: #1e293b;
  --color-surface-hover: #334155;
  --color-primary: #38bdf8;
  --color-primary-focus: #0284c7;
  --color-text: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-border: #334155;
  --color-accent: #f59e0b;
  --color-success: #10b981;
  --color-danger: #ef4444;
  --font-sans: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic UI", "Meiryo", sans-serif;
  --max-width: 1140px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
}

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

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color 0.2s ease;
}

a:hover {
  color: #7dd3fc;
}

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-accent);
  color: #000;
  padding: 8px 16px;
  font-weight: bold;
  z-index: 9999;
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
}

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

/* Header & Nav */
.site-header {
  background: rgba(15, 23, 42, 0.95);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(8px);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1.25rem;
}

.site-logo img {
  width: 38px;
  height: 38px;
  display: block;
}

.site-nav ul {
  display: flex;
  list-style: none;
  gap: 24px;
}

.site-nav a {
  text-decoration: none;
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: background 0.2s ease;
}

.site-nav a:hover, .site-nav a[aria-current="page"] {
  background: var(--color-surface);
  color: var(--color-primary);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 1.1rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 80px 0 60px;
  border-bottom: 1px solid var(--color-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  background: rgba(56, 189, 248, 0.15);
  color: var(--color-primary);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 16px;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.hero-title {
  font-size: 2.3rem;
  line-height: 1.35;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin-bottom: 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--color-primary);
  color: #041322;
}

.btn-primary:hover {
  background: #7dd3fc;
  color: #041322;
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.hero-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.hero-card h3 {
  font-size: 1.25rem;
  margin-bottom: 16px;
  color: var(--color-primary);
}

.hero-card ul {
  list-style: none;
  margin-bottom: 24px;
}

.hero-card li {
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.95rem;
}

/* Sections */
.section {
  padding: 72px 0;
  border-bottom: 1px solid var(--color-border);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 48px;
}

.section-title {
  font-size: 1.9rem;
  margin-bottom: 16px;
  font-weight: 700;
}

.section-subtitle {
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

/* Grid & Cards */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 14px;
  color: var(--color-text);
}

.card p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* Pricing Card */
.pricing-box {
  background: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 650px;
  margin: 0 auto;
  text-align: center;
}

.price-amount {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-primary);
  margin: 16px 0;
}

.price-sub {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 24px;
}

/* Step list */
.step-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.step-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 24px;
  border-radius: var(--radius-md);
  position: relative;
}

.step-num {
  display: inline-block;
  width: 32px;
  height: 32px;
  line-height: 32px;
  text-align: center;
  background: var(--color-primary);
  color: #041322;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 12px;
}

/* Forms */
.form-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  max-width: 680px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 12px 16px;
  background: #0f172a;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
}

.form-help {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 6px;
}

.form-status {
  padding: 14px;
  border-radius: var(--radius-sm);
  margin-top: 20px;
  font-size: 0.95rem;
  display: none;
}

.form-status.success {
  background: rgba(16, 185, 129, 0.2);
  border: 1px solid var(--color-success);
  color: #a7f3d0;
  display: block;
}

.form-status.error {
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid var(--color-danger);
  color: #fecaca;
  display: block;
}

/* Operator Info Table */
.info-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}

.info-table th, .info-table td {
  padding: 14px 18px;
  border: 1px solid var(--color-border);
  text-align: left;
  font-size: 0.95rem;
}

.info-table th {
  background: #0f172a;
  width: 32%;
  color: var(--color-text-muted);
}

/* Footer */
.site-footer {
  background: #080d1a;
  padding: 60px 0 30px;
  border-top: 1px solid var(--color-border);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  font-size: 0.85rem;
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #0f172a;
  border-top: 2px solid var(--color-primary);
  padding: 20px;
  z-index: 10000;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.5);
  display: none;
}

.cookie-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cookie-text {
  flex: 1;
  font-size: 0.9rem;
  color: var(--color-text);
}

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

/* Responsive */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .grid-3, .step-list {
    grid-template-columns: 1fr;
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }
  .site-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #0f172a;
    border-bottom: 1px solid var(--color-border);
    padding: 20px;
  }
  .site-nav.open {
    display: block;
  }
  .site-nav ul {
    flex-direction: column;
    gap: 12px;
  }
  .hero-title {
    font-size: 1.8rem;
  }
}