:root {
  --bg: #0A0F1E;
  --bg-2: #0D1428;
  --bg-panel: #111A33;
  --bg-raise: #16203D;
  --green: #2EFFB0;
  --orange: #FF6D3C;
  --text: #F2F6FF;
  --text-2: #C0CDE0;
  --text-3: #7F8FA3;
  --border: #26385C;
  --font-head: "Archivo Black", "Noto Sans SC Black", sans-serif;
  --font-body: "Noto Sans SC", "Inter", sans-serif;
  --font-number: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  --container: 1200px;
  --shadow-lg: 0 16px 32px rgba(0, 0, 0, 0.45);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

ul, ol {
  list-style: none;
}

a {
  color: var(--green);
  background-color: transparent;
  text-decoration: none;
}

a:hover {
  color: var(--text);
}

img, svg, video {
  max-width: 100%;
  height: auto;
  display: block;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

address {
  font-style: normal;
}

::selection {
  background: var(--green);
  color: var(--bg);
}

:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 3px;
}

.site-container {
  width: min(var(--container), 92%);
  margin-inline: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: -120%;
  left: 16px;
  z-index: 2000;
  background: var(--green);
  color: var(--bg);
  font-weight: 900;
  padding: 12px 20px;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 12px;
  color: var(--bg);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg);
  background: rgba(10, 15, 30, 0.94);
  backdrop-filter: blur(10px);
  border-top: 3px solid var(--green);
  border-bottom: 2px solid var(--border);
}

.topbar-status {
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  padding: 6px 0;
}

.topbar-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.75rem;
  color: var(--text-2);
}

.status-light {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px rgba(46, 255, 176, 0.8);
  animation: statusBlink 2.6s ease-in-out infinite;
}

@keyframes statusBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.topbar-text {
  letter-spacing: 0.04em;
}

.topbar-meta {
  margin-left: auto;
  color: var(--text-3);
  font-family: var(--font-number);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.header-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 12px 0;
  position: relative;
}

.brand-block {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-block--footer {
  opacity: 0.95;
}

.brand-mark {
  font-family: var(--font-head);
  font-size: 1.55rem;
  line-height: 1;
  color: var(--text);
  letter-spacing: -0.02em;
}

.brand-move {
  font-family: var(--font-body);
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0.28em;
  color: var(--text-2);
  display: inline-block;
  transform: translateY(-3px);
}

.brand-badge {
  font-family: var(--font-number);
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  color: var(--green);
  border: 1px solid var(--green);
  background: rgba(46, 255, 176, 0.06);
  padding: 2px 8px;
  line-height: 1.4;
  clip-path: polygon(0 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}

.nav-panel {
  display: flex;
  flex: 1;
  justify-content: flex-end;
}

.page-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-link {
  position: relative;
  display: block;
  padding: 10px 14px;
  color: var(--text-2);
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.2;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 5px;
  height: 3px;
  background: var(--green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}

.nav-link:hover {
  color: var(--text);
  background: var(--bg-raise);
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-link[aria-current="page"] {
  color: var(--green);
}

.nav-link[aria-current="page"]::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 4px;
  background: var(--orange);
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: var(--bg-panel);
  border: 2px solid var(--border);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.nav-toggle:hover {
  border-color: var(--green);
}

.nav-toggle-line {
  width: 20px;
  height: 2px;
  background: var(--text);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.scroll-progress {
  position: absolute;
  left: 0;
  bottom: -2px;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--green), var(--orange));
  z-index: 5;
}

@media (max-width: 899px) {
  .nav-panel {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: auto;
    flex-direction: column;
    padding: 10px;
    background: var(--bg-2);
    border-top: 2px solid var(--border);
    border-bottom: 3px solid var(--green);
    box-shadow: var(--shadow-lg);
    z-index: 30;
  }

  .nav-panel[data-open] {
    display: flex;
  }

  .page-nav {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .nav-link {
    padding: 14px 16px;
    border-left: 4px solid transparent;
  }

  .nav-link::before,
  .nav-link::after {
    display: none;
  }

  .nav-link:hover,
  .nav-link[aria-current="page"] {
    background: var(--bg-raise);
    border-left-color: var(--green);
    color: var(--green);
  }
}

@media (min-width: 900px) {
  .nav-toggle {
    display: none;
  }

  .nav-panel {
    position: static;
    width: auto;
    background: transparent;
    border: 0;
    box-shadow: none;
    padding: 0;
    display: flex;
  }
}

main {
  display: block;
}

#main-content {
  min-height: 50vh;
}

.section-pad {
  padding: clamp(48px, 8vw, 100px) 0;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 18px 0;
  color: var(--text-3);
  font-size: 0.85rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

.breadcrumb a {
  color: var(--text-2);
}

.breadcrumb a:hover {
  color: var(--green);
}

.breadcrumb [aria-current="page"] {
  color: var(--text);
}

.breadcrumb-sep {
  opacity: 0.5;
}

.chapter-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 40px;
}

.chapter-index {
  font-family: var(--font-head);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 0.9;
  color: rgba(46, 255, 176, 0.1);
  -webkit-text-stroke: 2px var(--border);
}

.chapter-title {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.05;
  color: var(--text);
  letter-spacing: -0.02em;
  margin-top: 4px;
}

.chapter-note {
  writing-mode: vertical-rl;
  font-size: 0.65rem;
  letter-spacing: 0.32em;
  color: var(--text-3);
  margin-top: 8px;
  flex-shrink: 0;
}

.data-panel {
  position: relative;
  background: var(--bg-panel);
  border: 2px solid var(--border);
  padding: clamp(16px, 3vw, 28px);
}

.data-panel::before {
  content: "";
  position: absolute;
  top: -2px;
  right: -2px;
  width: 22px;
  height: 22px;
  border-top: 4px solid var(--green);
  border-right: 4px solid var(--green);
  z-index: 2;
  pointer-events: none;
}

.data-panel[data-accent="orange"]::before {
  border-color: var(--orange);
}

.data-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  padding: 16px;
}

.visual-container {
  position: relative;
  overflow: hidden;
  background: var(--bg-panel);
  border: 2px solid var(--border);
}

.visual-container img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.visual-aspect {
  aspect-ratio: 16 / 9;
}

.visual-aspect--tall {
  aspect-ratio: 4 / 5;
}

.visual-aspect--wide {
  aspect-ratio: 21 / 9;
}

.visual-fill {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: repeating-linear-gradient(
    -45deg,
    rgba(46, 255, 176, 0.06) 0 2px,
    transparent 2px 10px
  ), linear-gradient(145deg, var(--bg-panel), var(--bg));
  color: var(--text-3);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-align: center;
  padding: 16px;
}

.visual-tag {
  position: absolute;
  top: 12px;
  left: 0;
  z-index: 3;
  background: var(--orange);
  color: var(--bg);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  padding: 5px 12px 5px 14px;
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.2;
  border: 2px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
  background: var(--green);
  border-color: var(--green);
  color: var(--bg);
  font-weight: 900;
}

.btn-primary:hover {
  color: var(--bg);
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 var(--border);
}

.btn-ghost {
  border-color: var(--border);
  color: var(--text-2);
}

.btn-ghost:hover {
  border-color: var(--green);
  color: var(--green);
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 rgba(46, 255, 176, 0.2);
}

.btn[disabled] {
  opacity: 0.5;
  pointer-events: none;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--green);
  font-weight: 700;
}

.link-arrow::after {
  content: "";
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: width 0.2s ease;
}

.link-arrow:hover {
  color: var(--text);
}

.link-arrow:hover::after {
  width: 30px;
}

.stat-marquee {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 32px;
  background: var(--bg-2);
  border-top: 2px solid var(--border);
  border-bottom: 2px solid var(--border);
  padding: 12px 16px;
  overflow: hidden;
}

.stat-item {
  color: var(--text-3);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

.stat-item strong {
  color: var(--green);
  font-family: var(--font-number);
  font-variant-numeric: tabular-nums;
  font-size: 1.05rem;
  font-weight: 700;
}

.stat-item em {
  color: var(--orange);
  font-style: normal;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
  will-change: opacity, transform;
}

[data-reveal][data-revealed] {
  opacity: 1;
  transform: none;
}

.site-footer {
  background: var(--bg-2);
  border-top: 4px solid var(--orange);
  position: relative;
  overflow: hidden;
}

.footer-inner {
  padding: 48px 0 24px;
}

.footer-seal {
  position: relative;
  z-index: 1;
}

.foot-status {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 32px;
  background: var(--bg);
  border: 2px solid var(--border);
  padding: 12px 16px;
  margin-bottom: 36px;
  font-family: var(--font-number);
  font-variant-numeric: tabular-nums;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--text-2);
}

.foot-status-cell {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.foot-status-cell::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--green);
  transform: rotate(45deg);
  flex-shrink: 0;
}

.foot-status-cell:last-child::before {
  background: var(--orange);
}

.foot-claim {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 24px;
  margin-bottom: 40px;
}

.foot-trust {
  flex: 1;
  min-width: 260px;
  max-width: 60ch;
  border-left: 4px solid var(--green);
  padding-left: 18px;
  color: var(--text-2);
  font-size: 0.9rem;
}

.foot-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1.4fr;
  gap: 36px;
  border-top: 1px solid var(--border);
  padding-top: 32px;
}

.foot-title {
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.18em;
  color: var(--text-3);
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
  margin-bottom: 14px;
}

.foot-links {
  display: grid;
  gap: 8px;
}

.foot-links a {
  color: var(--text-2);
  display: inline-block;
  padding-left: 8px;
  border-left: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.foot-links a:hover {
  color: var(--green);
  border-color: var(--green);
}

.foot-contact {
  display: grid;
  gap: 6px;
  color: var(--text-2);
  font-size: 0.85rem;
}

.foot-address {
  color: var(--text-3);
}

.foot-icp {
  margin-top: 14px;
  color: var(--text-3);
  font-size: 0.75rem;
  line-height: 1.6;
}

.foot-trust-note {
  color: var(--text-3);
  font-size: 0.7rem;
  margin-top: 6px;
}

.footer-decor {
  font-family: var(--font-head);
  font-size: clamp(3rem, 10vw, 8rem);
  line-height: 1;
  text-align: center;
  color: rgba(242, 246, 255, 0.03);
  letter-spacing: 0.05em;
  white-space: nowrap;
  user-select: none;
  pointer-events: none;
  transform: translateY(0.2em);
}

@media (max-width: 899px) {
  .foot-grid {
    grid-template-columns: 1fr 1fr;
  }

  .foot-col--contact {
    grid-column: 1 / -1;
  }
}

@media (max-width: 599px) {
  .topbar-meta {
    display: none;
  }

  .topbar-text {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .foot-grid {
    grid-template-columns: 1fr;
  }
}

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

  html {
    scroll-behavior: auto;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}