:root {
  --home-browser-sidebar: 292px;
  --home-status-row-height: 54px;
  --home-principle-min: 230px;
}

.capability-browser {
  display: grid;
  grid-template-columns: var(--home-browser-sidebar) minmax(0, 1fr);
  min-height: 520px;
  overflow: hidden;
  border: 1px solid var(--color-border-bright);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
  box-shadow: var(--shadow-scene);
}

.capability-sidebar {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px;
  border-right: 1px solid var(--color-border-soft);
  background:
    linear-gradient(160deg, var(--color-glass-light), var(--color-transparent)),
    var(--color-bg-deep);
}

.capability-sidebar [role="tab"] {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  min-height: 68px;
  align-items: center;
  gap: 12px;
  padding: 10px 13px;
  border: 1px solid var(--color-transparent);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  background: var(--color-transparent);
  cursor: pointer;
  font-size: 13px;
  text-align: left;
  transition:
    border-color var(--transition-fast),
    color var(--transition-fast),
    background-color var(--transition-fast);
}

.capability-sidebar [role="tab"]:hover {
  color: var(--color-text);
  background: var(--color-glass-light);
}

.capability-sidebar [role="tab"][aria-selected="true"] {
  border-color: var(--color-accent-faint);
  color: var(--color-text);
  background: var(--color-accent-faint);
  box-shadow: inset 0 1px 0 var(--color-border-soft);
}

.capability-index {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-pill);
  color: var(--color-text-dim);
  background: var(--color-glass-light);
  font-family: var(--font-mono);
  font-size: 10px;
}

.capability-sidebar [aria-selected="true"] .capability-index {
  border-color: var(--color-accent-faint);
  color: var(--color-accent-light);
  background: var(--color-accent-faint);
}

.capability-canvas {
  position: relative;
  display: flex;
  min-width: 0;
  align-items: stretch;
  overflow: hidden;
  background:
    radial-gradient(circle at 84% 18%, var(--color-accent-faint), var(--color-transparent) 26%),
    radial-gradient(circle at 20% 85%, var(--color-navy-faint), var(--color-transparent) 34%),
    var(--color-panel-2);
}

.capability-canvas::after {
  position: absolute;
  right: -118px;
  bottom: -150px;
  width: 360px;
  height: 360px;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-pill);
  box-shadow: 0 0 0 42px var(--color-grid), 0 0 0 84px var(--color-grid);
  content: "";
}

.capability-panel {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: clamp(30px, 5vw, 68px);
}

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

.capability-panel h3 {
  max-width: 700px;
  margin-top: 23px;
  font-size: clamp(29px, 4vw, 48px);
}

.capability-panel p {
  max-width: 760px;
  margin-top: 20px;
  color: var(--color-text-muted);
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.9;
}

.capability-notes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 30px;
}

.service-principles {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(var(--home-principle-min), 1fr));
  gap: 1px;
  margin-top: 28px;
  overflow: hidden;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  background: var(--color-border-soft);
}

.principle-lead,
.principle-item {
  padding: clamp(22px, 3vw, 32px);
  background: var(--color-panel);
}

.principle-lead {
  background:
    linear-gradient(145deg, var(--color-navy-faint), var(--color-transparent)),
    var(--color-panel-2);
}

.principle-lead h3,
.principle-item h3 {
  font-size: 20px;
}

.principle-lead p,
.principle-item p {
  margin-bottom: 0;
  font-size: 14px;
}

.network-guidance,
.traffic-pack-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  margin-top: 22px;
  padding: 24px;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(145deg, var(--color-glass-light), var(--color-transparent)),
    var(--color-panel);
}

.network-guidance > div,
.traffic-pack-note > div {
  max-width: 900px;
}

.network-guidance h3,
.traffic-pack-note h3 {
  margin-bottom: 7px;
  font-size: 20px;
}

.network-guidance p,
.traffic-pack-note p {
  margin-bottom: 0;
  font-size: 14px;
}

.network-guidance .article-link,
.traffic-pack-note .article-link {
  flex: 0 0 auto;
  white-space: nowrap;
}

.server-reference {
  display: grid;
  grid-template-columns: minmax(240px, 0.72fr) minmax(0, 1.6fr);
  gap: 28px;
  margin-top: 28px;
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at 88% 15%, var(--color-navy-faint), var(--color-transparent) 32%),
    var(--color-bg-deep);
  box-shadow: var(--shadow-panel);
}

.server-reference-copy h3 {
  margin: 15px 0 7px;
}

.server-reference-copy p {
  margin-bottom: 0;
  font-size: 14px;
}

.server-status {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-content: center;
  gap: 9px;
  min-height: 126px;
}

.srv-row {
  display: grid;
  grid-template-columns: 9px 25px minmax(78px, 1fr) auto auto;
  min-height: var(--home-status-row-height);
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  overflow: hidden;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-md);
  background: var(--color-glass-light);
}

.srv-dot {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: var(--radius-pill);
  background: var(--color-success);
  box-shadow: 0 0 11px var(--color-success);
  animation: server-breathe 2.4s ease-in-out infinite;
}

.srv-flag {
  font-size: 17px;
  line-height: 1;
}

.srv-name {
  min-width: 0;
  overflow: hidden;
  color: var(--color-text);
  font-size: 12px;
  font-weight: 630;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.srv-type {
  max-width: 88px;
  padding: 2px 6px;
  overflow: hidden;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-pill);
  color: var(--color-text-dim);
  background: var(--color-glass-light);
  font-family: var(--font-mono);
  font-size: 8px;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.srv-ms,
.srv-bw {
  color: var(--color-accent-light);
  font-family: var(--font-mono);
  font-size: 9px;
  white-space: nowrap;
}

@keyframes server-breathe {
  0%,
  100% {
    opacity: 0.55;
    transform: scale(0.82);
  }

  50% {
    opacity: 1;
    transform: scale(1);
  }
}

.plan-summary {
  min-height: 106px;
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.75;
}

.home-article-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.home-article-grid .article-card {
  min-height: 320px;
}

.section-link-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
}

@media (max-width: 1180px) {
  .service-principles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .server-reference {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .capability-browser {
    grid-template-columns: 220px minmax(0, 1fr);
  }

  .capability-sidebar [role="tab"] {
    grid-template-columns: 45px minmax(0, 1fr);
    font-size: 12px;
  }

  .server-status {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  .capability-browser {
    display: block;
    min-height: 0;
    border-radius: var(--radius-lg);
  }

  .capability-sidebar {
    display: flex;
    flex-direction: row;
    padding: 9px;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--color-border-soft);
    scrollbar-width: thin;
  }

  .capability-sidebar [role="tab"] {
    min-width: 150px;
    min-height: 54px;
    grid-template-columns: 40px 1fr;
    flex: 0 0 auto;
    padding: 7px 9px;
  }

  .capability-panel {
    min-height: 430px;
  }

  .capability-panel h3 {
    font-size: 30px;
  }

  .capability-panel p {
    font-size: 16px;
  }

  .network-guidance,
  .traffic-pack-note {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }

  .server-status {
    grid-template-columns: 1fr;
  }

  .plan-summary {
    min-height: 0;
  }
}

@media (max-width: 640px) {
  .service-principles,
  .home-article-grid {
    grid-template-columns: 1fr;
  }

  .capability-panel {
    min-height: 0;
    padding: 26px 20px 34px;
  }

  .capability-panel h3 {
    font-size: 27px;
  }

  .network-guidance,
  .traffic-pack-note,
  .server-reference {
    padding: 20px;
  }

  .network-guidance .article-link,
  .traffic-pack-note .article-link {
    white-space: normal;
  }

  .srv-row {
    grid-template-columns: 8px 23px minmax(66px, 1fr) auto;
  }

  .srv-type {
    display: none;
  }

  .section-link-row {
    align-items: stretch;
    flex-direction: column;
  }

  .section-link-row .button {
    width: 100%;
  }
}

@media (max-width: 390px) {
  .capability-sidebar [role="tab"] {
    min-width: 138px;
  }

  .capability-index {
    font-size: 9px;
  }

  .srv-bw {
    display: none;
  }

  .srv-row {
    grid-template-columns: 8px 23px minmax(70px, 1fr) auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .srv-dot {
    animation: none;
    opacity: 1;
    transform: none;
  }
}