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

:root {
  --primary: #7c3aed;
  --primary-dark: #6d28d9;
  --primary-light: #a78bfa;
  --primary-bg: #f5f3ff;
  --accent: #ec4899;
  --bg: #ffffff;
  --surface: #f9fafb;
  --surface-2: #f3f4f6;
  --text: #111827;
  --text-2: #6b7280;
  --text-3: #9ca3af;
  --border: #e5e7eb;
  --border-light: #f3f4f6;
  --success: #10b981;
  --error: #ef4444;
  --warning: #f59e0b;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --transition: 0.2s ease;
  --max-w: 1200px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'Cascadia Code', 'Consolas', 'Fira Code', monospace;
}

html { scroll-behavior: auto; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); }

img { max-width: 100%; display: block; }

/* ── Navigation ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  transition: box-shadow var(--transition);
}

.navbar.scrolled { box-shadow: var(--shadow); }

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text);
}

.nav-logo .kanji {
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 500;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-2);
  font-weight: 500;
  font-size: 0.9rem;
  transition: color var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
}

.nav-cta {
  background: var(--primary);
  color: #fff !important;
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.85rem;
  transition: background var(--transition), transform var(--transition);
}

.nav-cta:hover {
  background: var(--primary-dark);
  color: #fff !important;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
  transition: var(--transition);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  font-family: var(--font);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.05rem;
}

/* ── Layout ── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

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

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: var(--primary-bg);
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 12px;
  color: var(--text);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-2);
  max-width: 600px;
  margin: 0 auto;
}

/* ── Hero ── */
.hero {
  padding: 140px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -60%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(124,58,237,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-bg);
  border: 1px solid rgba(124,58,237,0.15);
  padding: 6px 16px;
  border-radius: 24px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  max-width: 720px;
  margin: 0 auto 20px;
  letter-spacing: -0.02em;
}

.hero h1 .gradient {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-2);
  max-width: 540px;
  margin: 0 auto 32px;
}

.hero-buttons {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 64px;
  padding-top: 48px;
  border-top: 1px solid var(--border-light);
}

.hero-stat {
  text-align: center;
}

.hero-stat .value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text);
}

.hero-stat .label {
  font-size: 0.85rem;
  color: var(--text-3);
  margin-top: 4px;
}

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

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.6;
}

/* ── Tokenomics ── */
.tokenomics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.token-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  border: 1px solid var(--border-light);
}

.token-card .number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  font-family: var(--mono);
}

.token-card .label {
  font-size: 0.85rem;
  color: var(--text-2);
  margin-top: 4px;
}

.token-card .detail {
  font-size: 0.78rem;
  color: var(--text-3);
  margin-top: 8px;
}

/* ── Roadmap ── */
.roadmap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.roadmap-item {
  position: relative;
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg);
}

.roadmap-item.done {
  border-color: var(--success);
  background: rgba(16,185,129,0.03);
}

.roadmap-item.active {
  border-color: var(--primary);
  background: var(--primary-bg);
}

.roadmap-phase {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-3);
  margin-bottom: 8px;
}

.roadmap-item.done .roadmap-phase { color: var(--success); }
.roadmap-item.active .roadmap-phase { color: var(--primary); }

.roadmap-item h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.roadmap-item ul {
  list-style: none;
  font-size: 0.85rem;
  color: var(--text-2);
}

.roadmap-item ul li {
  padding: 3px 0;
  padding-left: 18px;
  position: relative;
}

.roadmap-item ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text-3);
}

.roadmap-item.done ul li::before,
.roadmap-item ul li.done::before {
  content: '✓';
  color: var(--success);
}

/* ── Code Block ── */
.code-block {
  background: #1e1e2e;
  border-radius: var(--radius);
  padding: 24px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.7;
  color: #cdd6f4;
}

.code-block .comment { color: #6c7086; }
.code-block .keyword { color: #cba6f7; }
.code-block .string { color: #a6e3a1; }
.code-block .number { color: #fab387; }

/* ── Cards ── */
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-light);
}

.card-title {
  font-weight: 700;
  font-size: 1rem;
}

/* ── Tables ── */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th {
  text-align: left;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-3);
  padding: 12px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-2);
}

tr:last-child td { border-bottom: none; }

tr:hover td { background: var(--surface); }

.mono {
  font-family: var(--mono);
  font-size: 0.82rem;
}

/* ── Forms ── */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 6px;
  color: var(--text);
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.9rem;
  color: var(--text);
  background: var(--bg);
  transition: border-color var(--transition);
  outline: none;
}

.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.1);
}

.form-input::placeholder { color: var(--text-3); }

/* ── Badges / Tags ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-success { background: rgba(16,185,129,0.1); color: var(--success); }
.badge-primary { background: var(--primary-bg); color: var(--primary); }
.badge-warning { background: rgba(245,158,11,0.1); color: var(--warning); }

/* ── Alert ── */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.alert-success { background: rgba(16,185,129,0.08); color: #065f46; border: 1px solid rgba(16,185,129,0.2); }
.alert-error { background: rgba(239,68,68,0.08); color: #991b1b; border: 1px solid rgba(239,68,68,0.2); }
.alert-info { background: var(--primary-bg); color: var(--primary-dark); border: 1px solid rgba(124,58,237,0.15); }

/* ── Footer ── */
.footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 48px;
  margin-bottom: 32px;
}

.footer-brand h3 {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-2);
}

.footer-links h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-3);
  margin-bottom: 12px;
}

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

.footer-links li { margin-bottom: 8px; }

.footer-links a {
  color: var(--text-2);
  font-size: 0.9rem;
}

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

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-3);
  text-align: center;
}

/* ── Loader ── */
.spinner {
  width: 20px;
  height: 20px;
  border: 2.5px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 40px;
  color: var(--text-2);
  font-size: 0.9rem;
}

/* ── Page-specific: Explorer ── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
}

.stat-card .stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
  font-family: var(--mono);
}

.stat-card .stat-label {
  font-size: 0.8rem;
  color: var(--text-3);
  margin-top: 4px;
}

.block-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color var(--transition);
}

.block-card:hover { border-color: var(--primary-light); }

.block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--surface);
  cursor: pointer;
  user-select: none;
}

.block-header h4 { font-size: 0.95rem; font-weight: 700; }

.block-body {
  padding: 16px 20px;
  font-size: 0.85rem;
  border-top: 1px solid var(--border-light);
}

.block-body .detail-row {
  display: flex;
  padding: 6px 0;
  gap: 12px;
}

.block-body .detail-label {
  font-weight: 600;
  color: var(--text-3);
  min-width: 100px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.block-body .detail-value {
  color: var(--text-2);
  font-family: var(--mono);
  font-size: 0.82rem;
  word-break: break-all;
}

/* ── Page-specific: Wallet ── */
.wallet-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.wallet-balance {
  background: linear-gradient(135deg, var(--primary), #9333ea);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 32px;
}

.wallet-balance .bal-label {
  font-size: 0.85rem;
  opacity: 0.8;
  margin-bottom: 4px;
}

.wallet-balance .bal-value {
  font-size: 2.5rem;
  font-weight: 800;
  font-family: var(--mono);
}

.wallet-balance .bal-addr {
  font-size: 0.78rem;
  opacity: 0.7;
  font-family: var(--mono);
  margin-top: 12px;
  word-break: break-all;
}

/* ── Page-specific: Docs ── */
.docs-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  align-items: start;
}

.docs-nav {
  position: sticky;
  top: 88px;
}

.docs-nav ul { list-style: none; }

.docs-nav li { margin-bottom: 4px; }

.docs-nav a {
  display: block;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-2);
  font-size: 0.88rem;
  font-weight: 500;
  transition: all var(--transition);
}

.docs-nav a:hover { background: var(--surface); color: var(--text); }
.docs-nav a.active { background: var(--primary-bg); color: var(--primary); font-weight: 600; }

.docs-content h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 40px 0 16px;
  padding-top: 20px;
  border-top: 1px solid var(--border-light);
}

.docs-content h2:first-child { margin-top: 0; border-top: none; padding-top: 0; }

.docs-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 24px 0 12px;
}

.docs-content p {
  font-size: 0.95rem;
  color: var(--text-2);
  margin-bottom: 16px;
}

.docs-content pre {
  background: #1e1e2e;
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.83rem;
  line-height: 1.7;
  color: #cdd6f4;
  margin-bottom: 16px;
}

.docs-content code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--surface-2);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--primary-dark);
}

.docs-content pre code {
  background: none;
  padding: 0;
  color: inherit;
}

.docs-content ul, .docs-content ol {
  margin-bottom: 16px;
  padding-left: 24px;
  color: var(--text-2);
  font-size: 0.95rem;
}

.docs-content li { margin-bottom: 6px; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    gap: 16px;
  }

  .hero h1 { font-size: 2.2rem; }
  .hero { padding: 120px 0 60px; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }

  .features-grid { grid-template-columns: 1fr; }
  .tokenomics-grid { grid-template-columns: repeat(2, 1fr); }
  .roadmap { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .wallet-grid { grid-template-columns: 1fr; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-nav { position: static; }

  .footer-inner { flex-direction: column; gap: 32px; }
  .section-title { font-size: 1.75rem; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .tokenomics-grid { grid-template-columns: 1fr; }
}

/* ── Animations ── */
.fade-in {
  animation: fadeInUp 0.5s ease both;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}