:root {
  --flag-red: #D93A3A;
  --flag-blue: #27337E;
  --flag-white: #FFFFFF;
  --flag-hk: #DE2A2A;
  --flag-sg: #DF2A34;
  --flag-korea-red: #D94A55;
  --flag-korea-blue: #3158A5;
  --flag-dark: #111827;
  --preview-swatch-border: #C8CCD8;
}

.hero {
  position: relative;
  overflow-x: clip;
  background: var(--color-canvas);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 46%;
  gap: 56px;
  min-height: 756px;
  align-items: center;
  padding-top: 36px;
  padding-bottom: 44px;
}

.hero-copy {
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  gap: 9px;
  margin-bottom: 26px;
  padding: 6px 16px 6px 12px;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 650;
  letter-spacing: .06em;
}

.hero-badge .mono {
  color: var(--color-route);
  font-size: 12px;
}

.keyword-mark {
  padding-inline: 2px;
  background-image: linear-gradient(var(--color-accent), var(--color-accent));
  background-position: 0 88%;
  background-repeat: no-repeat;
  background-size: 100% 26%;
}

.hero-copy .button-row {
  margin-bottom: 26px;
}

.hero-description {
  max-width: 520px;
  margin-bottom: 22px;
  color: var(--color-muted);
  font-size: 17px;
}

.hero-description strong {
  color: var(--color-ink);
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 22px;
  margin-bottom: 24px;
}

.trust-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--color-ink);
  font-size: 14px;
  font-weight: 650;
}

.trust-item svg {
  flex-shrink: 0;
  color: var(--color-success);
}

.platform-strip {
  display: flex;
  max-width: 590px;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--color-line);
}

.platform-strip-label {
  flex-shrink: 0;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
}

.platform-token {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--color-muted);
  font-size: 13px;
}

.platform-token svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}

.exit-board {
  position: relative;
  z-index: 1;
  overflow: hidden;
  border-radius: var(--radius-board);
  background: var(--color-route);
  box-shadow: var(--shadow-board);
}

.board-strip {
  height: 4px;
  background: var(--color-accent);
  animation: route-breathe 4.5s ease-in-out infinite;
}

@keyframes route-breathe {
  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: .45;
  }
}

.board-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 30px 14px;
}

.board-title {
  color: var(--color-white-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
}

.board-pass {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  gap: 8px;
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 650;
}

.board-pass .status-dot {
  box-shadow: none;
  animation: route-breathe 4.5s ease-in-out infinite;
}

.exit-row {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 22px 30px;
  border-top: 1px solid var(--color-white-faint);
  transition: background-color var(--motion-fast) ease;
}

.exit-row:hover {
  background: var(--color-white-hover);
}

.exit-flag {
  width: 46px;
  height: 33px;
  flex: 0 0 auto;
  overflow: hidden;
  border-radius: var(--radius-xs);
}

.flag-base {
  fill: var(--flag-white);
}

.flag-red {
  fill: var(--flag-red);
}

.flag-blue {
  fill: var(--flag-blue);
}

.flag-hk {
  fill: var(--flag-hk);
}

.flag-sg {
  fill: var(--flag-sg);
}

.flag-korea-red {
  fill: var(--flag-korea-red);
}

.flag-korea-blue {
  fill: var(--flag-korea-blue);
}

.flag-dark {
  fill: var(--flag-dark);
}

.flag-stroke {
  fill: none;
  stroke: var(--color-white-faint);
}

.exit-meta {
  flex: 1 1 auto;
}

.exit-name {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 750;
  line-height: 1.3;
}

.exit-code {
  display: block;
  margin-top: 3px;
  color: var(--color-white-soft);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
}

.exit-arrow {
  display: flex;
  flex: 0 0 auto;
  color: var(--color-white);
  transition: color 180ms ease, transform 180ms ease;
}

.exit-row:hover .exit-arrow {
  color: var(--color-accent);
  transform: translateX(4px);
}

.route-list {
  border-top: 1px solid var(--color-line);
}

.route-list::before {
  display: block;
  height: 3px;
  margin-top: -1px;
  background: var(--color-accent);
  content: "";
}

.route-feature {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) 30px;
  gap: 26px;
  align-items: center;
  padding-top: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-line);
}

.route-number {
  display: inline-flex;
  width: 64px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--color-route);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
}

.route-feature h3 {
  margin-bottom: 3px;
  font-size: 20px;
}

.route-feature p {
  max-width: 880px;
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 14.5px;
}

.route-feature-arrow {
  display: flex;
  color: var(--color-ink);
  transition: color 180ms ease, transform 180ms ease;
}

.route-feature:hover .route-feature-arrow {
  color: var(--color-accent);
  transform: translateX(4px);
}

.tabs {
  max-width: 100%;
}

.tab-list {
  display: flex;
  max-width: 100%;
  gap: 7px;
  overflow-x: auto;
  padding: 5px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  -webkit-overflow-scrolling: touch;
}

.tab-list [role="tab"] {
  min-height: 42px;
  flex: 1 0 auto;
  border: 0;
  border-radius: var(--radius-sm);
  padding: 8px 18px;
  background: var(--color-transparent);
  color: var(--color-muted);
  font-weight: 650;
}

.tab-list [role="tab"][aria-selected="true"] {
  background: var(--color-route);
  color: var(--color-white);
}

.tab-panel {
  padding-top: 28px;
}

.tab-panel[hidden] {
  display: none;
}

.toc-tabs {
  position: sticky;
  top: 10px;
  z-index: 30;
  display: flex;
  max-width: 100%;
  gap: 6px;
  overflow-x: auto;
  padding: 7px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-canvas);
  box-shadow: var(--shadow-raised);
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.toc-tabs a {
  display: inline-flex;
  min-height: 42px;
  flex: 0 0 auto;
  align-items: center;
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  color: var(--color-muted);
  font-size: 14px;
  font-weight: 650;
}

.toc-tabs a:hover,
.toc-tabs a.is-current,
.toc-tabs a[aria-current="location"] {
  background: var(--color-panel-strong);
  color: var(--color-route);
}

.faq-list {
  border-top: 3px solid var(--color-accent);
}

.faq-item {
  border-bottom: 1px solid var(--color-line);
}

.faq-item summary {
  position: relative;
  padding: 22px 48px 22px 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  position: absolute;
  top: 50%;
  right: 4px;
  color: var(--color-route);
  content: "+";
  font-family: var(--font-mono);
  font-size: 24px;
  transform: translateY(-50%);
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-answer {
  max-width: 860px;
  padding: 0 48px 24px 0;
  color: var(--color-muted);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 3px solid var(--color-accent);
  border-bottom: 1px solid var(--color-line);
}

.plan-card {
  position: relative;
  min-width: 0;
  padding: 32px;
  border-left: 1px solid var(--color-line);
  background: var(--color-canvas);
}

.plan-card:last-child {
  border-right: 1px solid var(--color-line);
}

.plan-card.is-current {
  background: var(--color-panel);
  box-shadow: inset 0 4px 0 var(--color-route);
}

.plan-badge {
  position: absolute;
  top: 18px;
  right: 18px;
  display: inline-flex;
  max-width: calc(100% - 36px);
  min-height: 26px;
  align-items: center;
  padding: 3px 9px;
  overflow: hidden;
  border-radius: var(--radius-pill);
  background: var(--color-warning);
  color: var(--color-white);
  font-size: 11px;
  font-weight: 750;
}

.plan-name {
  margin-bottom: 24px;
  padding-right: 62px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
}

.plan-price {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 10px;
}

.plan-price strong {
  font-family: var(--font-display);
  font-size: 42px;
  line-height: 1;
}

.plan-price span {
  color: var(--color-muted);
}

.plan-traffic {
  margin-bottom: 22px;
  color: var(--color-route);
  font-weight: 700;
}

.plan-features {
  min-height: 150px;
  margin-bottom: 26px;
  padding-left: 19px;
  color: var(--color-muted);
}

.plan-card .button {
  width: 100%;
  background: var(--color-route);
  color: var(--color-white);
}

.plan-card.is-current .button {
  background: var(--color-accent);
  color: var(--color-ink);
}

.table-scroll {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  -webkit-overflow-scrolling: touch;
}

.data-table,
.node-table,
.compare-table {
  width: 100%;
  min-width: 720px;
  background: var(--color-canvas);
}

.data-table th,
.data-table td,
.node-table th,
.node-table td,
.compare-table th,
.compare-table td {
  padding: 15px 18px;
  border-bottom: 1px solid var(--color-line);
  text-align: left;
  vertical-align: top;
}

.data-table th,
.node-table th,
.compare-table th {
  background: var(--color-panel-strong);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
}

.data-table td:first-child,
.node-table td:first-child,
.compare-table td:first-child {
  color: var(--color-ink);
  font-weight: 700;
}

.node-group-row th {
  background: var(--color-route);
  color: var(--color-white);
  font-size: 13px;
}

.prose > .data-table {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 3px solid var(--color-accent);
}

.platform-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: flex-start;
  padding: 24px;
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.platform-card:first-child {
  border-left: 1px solid var(--color-line);
}

.platform-icon {
  display: inline-flex;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  border-radius: var(--radius-sm);
  background: var(--color-route);
  color: var(--color-white);
}

.platform-icon svg {
  width: 24px;
  height: 24px;
}

.platform-card h3 {
  font-size: 18px;
}

.platform-card p {
  flex-grow: 1;
  color: var(--color-muted);
  font-size: 14px;
}

.platform-card .button {
  min-height: 40px;
  padding: 8px 14px;
  border-color: var(--color-line);
  background: var(--color-panel);
  font-size: 13px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 3px solid var(--color-accent);
}

.article-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 28px;
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.article-card:first-child {
  border-left: 1px solid var(--color-line);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.article-card h3 {
  font-size: 21px;
}

.article-card p {
  flex-grow: 1;
  color: var(--color-muted);
  font-size: 14.5px;
}

.article-link {
  margin-top: 18px;
  color: var(--color-route);
  font-weight: 700;
}

.callout {
  position: relative;
  margin: 28px 0;
  padding: 22px 24px 22px 28px;
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-panel);
  color: var(--color-ink);
}

.callout strong {
  color: var(--color-route);
}

.article-promo {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  margin-top: 64px;
  padding: 34px;
  border-radius: var(--radius-md);
  background: var(--color-route);
  color: var(--color-white);
  box-shadow: var(--shadow-board);
}

.article-promo h2,
.article-promo h3 {
  margin-bottom: 8px;
  color: var(--color-white);
}

.article-promo p {
  color: var(--color-white-soft);
}

.article-promo .btn-primary {
  white-space: nowrap;
}

.preview-main {
  overflow-x: clip;
}

.preview-section {
  padding-top: 86px;
  padding-bottom: 86px;
  border-top: 1px solid var(--color-line);
}

.preview-section-title {
  margin-bottom: 36px;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.preview-stack {
  display: grid;
  gap: 24px;
}

.swatch-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.swatch {
  overflow: hidden;
  border: 1px solid var(--preview-swatch-border);
  border-radius: var(--radius-sm);
  background: var(--color-canvas);
}

.swatch-color {
  height: 92px;
  border-bottom: 1px solid var(--preview-swatch-border);
}

.swatch-copy {
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
}

.swatch-bg {
  background: var(--color-canvas);
}

.swatch-panel {
  background: var(--color-panel);
}

.swatch-panel-strong {
  background: var(--color-panel-strong);
}

.swatch-line {
  background: var(--color-line);
}

.swatch-accent {
  background: var(--color-accent);
}

.swatch-route {
  background: var(--color-route);
}

.swatch-ink {
  background: var(--color-ink);
}

.swatch-muted {
  background: var(--color-muted);
}

.swatch-success {
  background: var(--color-success);
}

.swatch-warning {
  background: var(--color-warning);
}

.type-sample {
  padding: 24px 0;
  border-bottom: 1px solid var(--color-line);
}

.type-sample:last-child {
  border-bottom: 0;
}

.type-display {
  font-family: var(--font-display);
  font-size: clamp(38px, 6vw, 68px);
  font-weight: 800;
  line-height: 1.1;
}

.type-body {
  max-width: 700px;
  color: var(--color-muted);
  font-size: 18px;
}

.type-mono {
  color: var(--color-route);
  font-family: var(--font-mono);
  font-size: 14px;
}

.button-demo {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button-hover-demo {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--color-accent-glow);
}

.button-disabled-demo {
  opacity: .55;
}

.preview-footer {
  margin-top: 0;
}

@media (max-width: 1180px) {
  .hero-grid {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .exit-board {
    width: min(100%, 720px);
  }

  .platform-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .swatch-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .pricing-grid,
  .article-grid {
    grid-template-columns: 1fr;
  }

  .plan-card,
  .plan-card:last-child,
  .article-card,
  .article-card:first-child {
    border-right: 1px solid var(--color-line);
    border-left: 1px solid var(--color-line);
  }

  .platform-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .article-promo {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero-grid {
    gap: 36px;
    padding-top: 40px;
  }

  .hero-badge {
    white-space: normal;
  }

  .trust-row {
    gap: 12px 18px;
  }

  .platform-strip {
    gap: 14px;
  }

  .board-head,
  .exit-row {
    padding-inline: 18px;
  }

  .board-title {
    font-size: 10px;
  }

  .exit-row {
    gap: 13px;
  }

  .exit-name {
    font-size: 16px;
  }

  .route-feature {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 14px;
  }

  .route-number {
    width: 52px;
  }

  .route-feature-arrow {
    display: none;
  }

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

  .swatch-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .article-promo {
    padding: 24px;
  }

  .toc-tabs {
    border-radius: var(--radius-sm);
  }
}

@media (prefers-reduced-motion: reduce) {
  .board-strip,
  .board-pass .status-dot {
    animation: none;
  }

  .exit-row:hover .exit-arrow,
  .route-feature:hover .route-feature-arrow {
    transform: none;
  }
}