/* Design notes: scheme/docs/INTERNALS.md#schemecssstylescss */
@import url('tokens.css');
@import url('diagrams.css');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  font-size: 16px;
  background: linear-gradient(135deg, #0c1022 0%, #110f1f 50%, #18091e 100%);
  background-attachment: fixed;
}

body {
  font-family: 'Space Grotesk', sans-serif;
  background: transparent;
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
  padding-left: 38px;
  transition: padding-left 0.18s ease;
}
body.sidebar-collapsed { padding-left: 0; }

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

/* ===== SIDEBAR (site switcher) ===== */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 38px;
  z-index: 110;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0 4px;
  gap: 3px;
  background: rgba(17, 15, 31, 0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-right: 1px solid var(--border-subtle);
  transition: transform 0.18s ease;
}
body.sidebar-collapsed .sidebar { transform: translateX(-100%); }

.side-btn,
.side-toggle {
  position: relative;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: none;
  background: transparent;
  border-radius: 7px;
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
  font: inherit;
  transition: color 0.12s, background 0.12s;
}
.side-btn:hover,
.side-toggle:hover {
  color: var(--text-bright);
  background: rgba(255, 255, 255, 0.05);
}
.side-btn.active {
  color: var(--accent);
  background: var(--accent-glow);
}
.side-btn.active::before {
  content: '';
  position: absolute;
  left: -4px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  border-radius: 0 2px 2px 0;
  background: var(--accent);
}
.side-btn:focus-visible,
.side-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.side-toggle { margin-top: auto; color: var(--text-muted); }

.side-btn[data-tooltip]::after,
.side-toggle[data-tooltip]::after,
.side-expand[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  padding: 5px 9px;
  background: rgba(17, 15, 31, 0.97);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-bright);
  font-size: 12px;
  font-weight: 500;
  font-family: 'Space Grotesk', sans-serif;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.12s;
  z-index: 200;
}
.side-btn:hover::after,
.side-btn:focus-visible::after,
.side-toggle:hover::after,
.side-toggle:focus-visible::after,
.side-expand:hover::after,
.side-expand:focus-visible::after { opacity: 1; }

.side-expand {
  position: fixed;
  left: 0;
  bottom: 8px;
  width: 22px;
  height: 38px;
  z-index: 110;
  display: none;
  place-items: center;
  border: 1px solid var(--border-subtle);
  border-left: none;
  border-radius: 0 8px 8px 0;
  background: rgba(17, 15, 31, 0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.12s, background 0.12s;
}
.side-expand:hover {
  color: var(--text-bright);
  background: rgba(28, 22, 56, 0.97);
}
body.sidebar-collapsed .side-expand { display: grid; }

/* ===== HEADER ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(17, 15, 31, 0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
}

.header-inner {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 12px;
  height: 68px;
  display: flex;
  align-items: center;
  position: relative;
}

/* --- Logo --- */
.logo {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
  text-decoration: none;
  color: var(--text);
  margin-top: 5px;
}

.logo-icon {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
}

.logo-icon svg { width: 100%; height: 100%; display: block; }

.logo-text {
  font-size: 25px;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.4px;
  line-height: 1.2;
}

.logo-sub {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.2px;
  font-family: 'JetBrains Mono', monospace;
}

/* --- Header action buttons --- */
.header-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
  align-items: center;
  margin-left: auto;
}

.action-wrap {
  position: relative;
}

.action-btn,
.action-btn-link {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--text-nav);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.12s, background 0.12s, border-color 0.12s;
}

.action-btn:hover,
.action-btn-link:hover,
.action-wrap.open .action-btn {
  color: var(--accent);
  border-color: var(--accent-border);
  background: var(--accent-glow);
}

.action-btn:focus-visible,
.action-btn-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.action-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 190px;
  background: rgba(17, 15, 31, 0.97);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px;
  z-index: 200;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
  visibility: hidden;
  transition: opacity 0.15s, transform 0.15s, visibility 0.15s;
}

.action-wrap.open .action-dropdown {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  visibility: visible;
}

.dropdown-link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 10px;
  border-radius: 6px;
  color: var(--text-nav);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.1s, color 0.1s;
}

.dropdown-link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-bright);
}

.dropdown-link svg { flex-shrink: 0; }

.dropdown-divider {
  height: 1px;
  background: var(--border-subtle);
  margin: 4px 6px;
}

.dropdown-copy-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 6px;
  transition: background 0.1s;
}

.dropdown-copy-row:hover { background: rgba(255, 255, 255, 0.04); }

.dropdown-coin {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  flex-shrink: 0;
  width: 46px;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.dropdown-net {
  font-size: 9px;
  font-weight: 500;
  color: var(--text-muted);
  opacity: 0.6;
  letter-spacing: 0.3px;
}

.dropdown-addr {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--text-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  min-width: 0;
}

.dropdown-copy-btn {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 5px;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.1s, border-color 0.1s, background 0.1s;
  line-height: 0;
}

.dropdown-copy-btn:hover {
  color: var(--accent);
  border-color: var(--accent-border);
  background: var(--accent-glow);
}

.dropdown-copy-btn.copied {
  color: var(--success-color);
  border-color: rgba(92, 184, 92, 0.3);
  background: rgba(92, 184, 92, 0.06);
}

/* --- Search --- */
.search-container {
  position: absolute;
  left: 50%;
  top: calc(50% + 5px);
  transform: translateX(-50%) translateY(-50%);
  width: 464px;
  max-width: calc(100% - 480px);
}

.search-icon {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.search-input {
  width: 100%;
  height: 37px;
  background: var(--border-subtle);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0 42px 0 40px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14.5px;
  color: var(--text);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.search-input:focus {
  border-color: var(--accent);
  box-shadow: none;
}

.search-input:focus-visible {
  outline: none;
}

.search-input::placeholder { color: var(--text-muted); }

.search-clear {
  position: absolute;
  right: 9px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px;
  display: none;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: color 0.15s;
  line-height: 0;
}
.search-clear:hover { color: var(--text); }
.search-input:not(:placeholder-shown) ~ .search-clear { display: flex; }

/* ===== CATEGORY NAV ===== */
.cat-nav {
  position: sticky;
  top: 69px;
  z-index: 90;
  background: rgba(17, 15, 31, 0.96);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 0 rgba(17, 15, 31, 0.96);
}

.cat-nav::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(221, 202, 250, 0.2) 30%, rgba(221, 202, 250, 0.2) 70%, transparent);
  pointer-events: none;
}

.cat-nav-inner {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 12px;
  height: 41px;
  display: flex;
  align-items: center;
  gap: 3px;
  overflow-x: auto;
  scrollbar-width: none;
}
.cat-nav-inner::-webkit-scrollbar { display: none; }

.cat-btn {
  flex-shrink: 0;
  height: 33px;
  padding: 0 13px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--text-nav);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.1px;
  cursor: pointer;
  transition: color 0.12s, background 0.12s, border-color 0.12s, opacity 0.12s;
  white-space: nowrap;
}

.cat-btn[data-cat="all"] { min-width: 48px; padding-left: 10px; padding-right: 10px; justify-content: center; }

.nav-sep {
  width: 1px;
  height: 18px;
  background: var(--border);
  flex-shrink: 0;
  margin: 0 4px;
}

.cat-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.07);
}

.cat-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.cat-btn.active {
  color: var(--accent);
  background: rgba(221, 202, 250, 0.1);
  border-color: var(--accent-border);
}
.cat-btn.active[data-cat="network"]   { color: var(--network-color);   background: var(--network-glow);   border-color: var(--network-border); }
.cat-btn.active[data-cat="storage"]   { color: var(--storage-color);   background: var(--storage-glow);   border-color: var(--storage-border); }
.cat-btn.active[data-cat="workloads"] { color: var(--workloads-color); background: var(--workloads-glow); border-color: var(--workloads-border); }
.cat-btn.active[data-cat="cluster"]   { color: var(--cluster-color);   background: var(--cluster-glow);   border-color: var(--cluster-border); }

/* ===== SUB-CATEGORY NAV (mirrors CLI mid-row coordinates) ===== */
.cat-nav-sub {
  top: 110px;
}
.cat-nav-sub .cat-nav-inner {
  height: 38px;
  gap: 4px;
}
.subcat-btn {
  flex-shrink: 0;
  height: 29px;
  padding: 0 13px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--text-nav);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.12s, background 0.12s, border-color 0.12s, opacity 0.12s;
  white-space: nowrap;
  opacity: 0.9;
}
.subcat-btn[data-sub="all"] { min-width: 48px; padding-left: 10px; padding-right: 10px; justify-content: center; }
.subcat-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.07);
  opacity: 1;
}
.subcat-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.subcat-btn.active {
  color: var(--accent);
  background: rgba(221, 202, 250, 0.1);
  border-color: var(--accent-border);
  opacity: 1;
}
.cat-nav-sub[data-cat="network"]   .subcat-btn.active { color: var(--network-color);   background: var(--network-glow);   border-color: var(--network-border); }
.cat-nav-sub[data-cat="storage"]   .subcat-btn.active { color: var(--storage-color);   background: var(--storage-glow);   border-color: var(--storage-border); }
.cat-nav-sub[data-cat="workloads"] .subcat-btn.active { color: var(--workloads-color); background: var(--workloads-glow); border-color: var(--workloads-border); }
.cat-nav-sub[data-cat="cluster"]   .subcat-btn.active { color: var(--cluster-color);   background: var(--cluster-glow);   border-color: var(--cluster-border); }

/* ===== MAIN GRID ===== */
.main {
  max-width: 1600px;
  margin: 0 auto;
  padding: 20px 12px 80px;
  min-height: 80vh;
}

.section { margin-bottom: 44px; }
.section[hidden] { display: none; }

.section-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  padding-bottom: 6px;
  position: relative;
}

.section-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(221,202,250,0.35) 0%, rgba(221,202,250,0.15) 50%, transparent 100%);
}

/* Category-colored header underlines */
.section[data-cat="network"]   .section-header::after { background: linear-gradient(90deg, rgba(79,229,255,0.70)  0%, rgba(79,229,255,0.50)  50%, rgba(79,229,255,0.28)  80%, transparent 100%); }
.section[data-cat="workloads"] .section-header::after { background: linear-gradient(90deg, rgba(61,160,255,0.70)  0%, rgba(61,160,255,0.50)  50%, rgba(61,160,255,0.28)  80%, transparent 100%); }
.section[data-cat="storage"]   .section-header::after { background: linear-gradient(90deg, rgba(94,202,148,0.70)  0%, rgba(94,202,148,0.50)  50%, rgba(94,202,148,0.28)  80%, transparent 100%); }
.section[data-cat="cluster"]   .section-header::after { background: linear-gradient(90deg, rgba(125,134,255,0.70) 0%, rgba(125,134,255,0.50) 50%, rgba(125,134,255,0.28) 80%, transparent 100%); }

.section-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(221, 202, 250, 0.1);
  border: 1px solid var(--accent-border);
  border-radius: 7px;
  color: var(--accent);
  flex-shrink: 0;
}
.section[data-cat="network"]   .section-icon { background: var(--network-glow);   border-color: var(--network-border);   color: var(--network-color); }
.section[data-cat="workloads"] .section-icon { background: var(--workloads-glow); border-color: var(--workloads-border); color: var(--workloads-color); }
.section[data-cat="storage"]   .section-icon { background: var(--storage-glow);   border-color: var(--storage-border);   color: var(--storage-color); }
.section[data-cat="cluster"]   .section-icon { background: var(--cluster-glow);   border-color: var(--cluster-border);   color: var(--cluster-color); }

.section-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.3px;
}

.section-sub {
  font-size: 14px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-muted);
  margin-left: 2px;
}
.section[data-cat="network"]   .section-sub { color: var(--network-color);   opacity: 0.75; }
.section[data-cat="workloads"] .section-sub { color: var(--workloads-color); opacity: 0.75; }
.section[data-cat="storage"]   .section-sub { color: var(--storage-color);   opacity: 0.75; }
.section[data-cat="cluster"]   .section-sub { color: var(--cluster-color);   opacity: 0.75; }

.section-count {
  margin-left: auto;
  flex-shrink: 0;
  padding: 3px 10px;
  font-size: 13px;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.2px;
  border: 1px solid var(--accent-border);
  background: var(--accent-glow);
  color: var(--accent);
  border-radius: 0;
  white-space: nowrap;
  line-height: 1.4;
}
.section[data-cat="network"]   .section-count { color: var(--network-color);   background: var(--network-glow);   border-color: var(--network-border); }
.section[data-cat="workloads"] .section-count { color: var(--workloads-color); background: var(--workloads-glow); border-color: var(--workloads-border); }
.section[data-cat="storage"]   .section-count { color: var(--storage-color);   background: var(--storage-glow);   border-color: var(--storage-border); }
.section[data-cat="cluster"]   .section-count { color: var(--cluster-color);   background: var(--cluster-glow);   border-color: var(--cluster-border); }

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 18px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
  position: relative;
}
.card:hover {
  transform: translateY(-2px);
  background: var(--bg-card-hover);
  border-color: var(--accent-border);
}
.card[data-cat="network"]:hover   { border-color: var(--network-color); }
.card[data-cat="storage"]:hover   { border-color: var(--storage-color); }
.card[data-cat="workloads"]:hover { border-color: var(--workloads-color); }
.card[data-cat="cluster"]:hover   { border-color: var(--cluster-color); }

.card-poster {
  aspect-ratio: 16 / 9;
  background: rgba(12, 8, 28, 0.85);
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border-subtle);
}
.card-poster svg {
  width: 100%;
  height: 100%;
  display: block;
}
.card-body {
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-bright);
  letter-spacing: -0.01em;
}
.card-desc {
  font-size: 13px;
  color: var(--text-card-desc);
  line-height: 1.45;
  flex: 1;
}
.card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 4px;
}
.card-cat {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid var(--accent-border);
}
.card[data-cat="network"]   .card-cat,
.scheme-dialog[data-cat="network"]   .card-cat { background: var(--network-glow);   color: var(--network-color);   border-color: var(--network-border); }
.card[data-cat="storage"]   .card-cat,
.scheme-dialog[data-cat="storage"]   .card-cat { background: var(--storage-glow);   color: var(--storage-color);   border-color: var(--storage-border); }
.card[data-cat="workloads"] .card-cat,
.scheme-dialog[data-cat="workloads"] .card-cat { background: var(--workloads-glow); color: var(--workloads-color); border-color: var(--workloads-border); }
.card[data-cat="cluster"]   .card-cat,
.scheme-dialog[data-cat="cluster"]   .card-cat { background: var(--cluster-glow);   color: var(--cluster-color);   border-color: var(--cluster-border); }
.card-version {
  font-size: 11px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-dim);
}

/* ===== EMPTY STATE ===== */
.empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 16px;
  color: var(--text-dim);
}
.empty-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}
.empty-desc { font-size: 14px; }

/* ===== DIALOG ===== */
.scheme-dialog {
  width: 92vw;
  max-width: 92vw;
  height: 92vh;
  max-height: 92vh;
  margin: auto;
  padding: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  color: var(--text);
  overflow: hidden;
}
.scheme-dialog::backdrop {
  background: rgba(8, 6, 16, 0.78);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.scheme-dialog[data-cat="network"]   { border-top: 3px solid var(--network-color); }
.scheme-dialog[data-cat="storage"]   { border-top: 3px solid var(--storage-color); }
.scheme-dialog[data-cat="workloads"] { border-top: 3px solid var(--workloads-color); }
.scheme-dialog[data-cat="cluster"]   { border-top: 3px solid var(--cluster-color); }

.scheme-dialog[data-tinted="true"][data-cat="workloads"] {
  --tint-deep:      #3f5d8a;
  --tint-base:      #5bb8ff;
  --tint-bright:    #8ec6f7;
  --tint-glow:      rgba(91, 168, 236, 0.15);
  --tint-border:    rgba(142, 198, 247, 0.42);
  --tint-active:    rgba(142, 198, 247, 0.28);
  --tint-edge:      rgba(63, 93, 138, 0.5);
  --tint-surface:   #18263f;
  --tint-canvas:    #0a1022;
  --tint-chrome:    #101a30;
  --tint-fill:      rgba(22, 34, 66, 0.72);
  --tint-fill-node: rgba(13, 21, 44, 0.62);
}
.scheme-dialog[data-tinted="true"][data-cat="cluster"] {
  --tint-deep:      #4c4f92;
  --tint-base:      #7d86ff;
  --tint-bright:    #abb0f5;
  --tint-glow:      rgba(125, 134, 255, 0.15);
  --tint-border:    rgba(171, 176, 245, 0.42);
  --tint-active:    rgba(171, 176, 245, 0.28);
  --tint-edge:      rgba(76, 79, 146, 0.5);
  --tint-surface:   #14122c;
  --tint-canvas:    #100d24;
  --tint-fill:      rgba(31, 29, 64, 0.72);
  --tint-fill-node: rgba(20, 18, 44, 0.62);
}
.scheme-dialog[data-tinted="true"][data-cat="network"] {
  --tint-deep:      #357d8c;
  --tint-base:      #4fe5ff;
  --tint-bright:    #9eeaf7;
  --tint-glow:      rgba(79, 229, 255, 0.15);
  --tint-border:    rgba(158, 234, 247, 0.42);
  --tint-active:    rgba(158, 234, 247, 0.28);
  --tint-edge:      rgba(53, 125, 140, 0.5);
  --tint-surface:   #0a1a20;
  --tint-canvas:    #071319;
  --tint-fill:      rgba(14, 38, 46, 0.72);
  --tint-fill-node: rgba(9, 26, 32, 0.62);
}
.scheme-dialog[data-tinted="true"][data-cat="storage"] {
  --tint-deep:      #356e52;
  --tint-base:      #5eca94;
  --tint-bright:    #aee0c7;
  --tint-glow:      rgba(94, 202, 148, 0.15);
  --tint-border:    rgba(174, 224, 199, 0.42);
  --tint-active:    rgba(174, 224, 199, 0.28);
  --tint-edge:      rgba(53, 110, 82, 0.5);
  --tint-surface:   #101c17;
  --tint-canvas:    #0b1410;
  --tint-fill:      rgba(20, 40, 32, 0.72);
  --tint-fill-node: rgba(13, 28, 22, 0.62);
}
.scheme-dialog[data-tinted="true"] {
  --accent:        var(--tint-bright);
  --accent-glow:   var(--tint-glow);
  --accent-border: var(--tint-border);

  --cluster-color:   var(--tint-base); --cluster-glow:   var(--tint-glow); --cluster-border:   var(--tint-border);
  --network-color:   var(--tint-base); --network-glow:   var(--tint-glow); --network-border:   var(--tint-border);
  --workloads-color: var(--tint-base); --workloads-glow: var(--tint-glow); --workloads-border: var(--tint-border);
  --storage-color:   var(--tint-base); --storage-glow:   var(--tint-glow); --storage-border:   var(--tint-border);

  --diag-stroke:      var(--tint-base);
  --diag-arrow:       var(--tint-base);
  --diag-arrow-dim:   var(--tint-deep);
  --diag-stroke-soft: var(--tint-deep);
  --diag-node-stroke: var(--tint-deep);
  --diag-fill-soft:   var(--tint-fill);
  --diag-node-fill:   var(--tint-fill-node);

  --bg-card: var(--tint-surface);
  --border:  var(--tint-deep);
}
.scheme-dialog[data-tinted="true"] .dialog-canvas {
  background-color: var(--tint-canvas);
  background-image: none;
}
.scheme-dialog[data-tinted="true"] .dialog-header {
  border-bottom-color: var(--tint-border);
}
.scheme-dialog[data-tinted="true"] .dialog-controls {
  background: var(--tint-chrome, var(--tint-fill-node));
  border-top-color: var(--tint-border);
}
.scheme-dialog[data-tinted="true"] .narration-overlay {
  background: rgba(10, 16, 36, 0.86);
  border-color: var(--tint-border);
  border-left-color: var(--tint-bright);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}
/* Networking panel reads in its own teal tint instead of the shared navy default
   (same darkness, derived from the network --tint-canvas #071319). */
.scheme-dialog[data-tinted="true"][data-cat="network"] .narration-overlay {
  background: rgba(7, 21, 27, 0.86);
}
/* Storage does the same in jade, derived from the storage --tint-canvas #0b1410. */
.scheme-dialog[data-tinted="true"][data-cat="storage"] .narration-overlay {
  background: rgba(11, 20, 16, 0.86);
}

.dialog-inner {
  display: grid;
  grid-template-rows: auto 1fr auto;
  height: 100%;
}
.dialog-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 18px;
  border-bottom: 1px solid var(--border-subtle);
}
.dialog-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-bright);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.dialog-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 12px;
  color: var(--text-dim);
  font-family: 'JetBrains Mono', monospace;
}
.dialog-meta .card-cat { font-family: 'Space Grotesk', sans-serif; }
.dialog-close {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-bright);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: color 0.12s, background 0.12s, border-color 0.12s;
}
.dialog-close:hover {
  background: var(--accent-glow);
  color: var(--accent);
  border-color: var(--accent-border);
}

.dialog-body {
  display: grid;
  grid-template-rows: 1fr auto;
  overflow: hidden;
}
.dialog-stage {
  position: relative;
  display: grid;
  overflow: hidden;
  min-height: 0;
}
.dialog-canvas {
  background: rgba(8, 6, 18, 0.55);
  display: grid;
  place-items: center;
  overflow: auto;
  padding: 16px;
  position: relative;
}
.dialog-canvas svg {
  max-width: 100%;
  max-height: 100%;
  display: block;
}

.narration-overlay {
  position: absolute;
  top: 16px;
  left: 16px;
  width: 32%;
  max-width: 360px;
  min-width: 240px;
  padding: 12px 14px;
  background: rgba(17, 15, 31, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 10px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  z-index: 6;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
/* Initial hidden state while the card module loads, so the box never flashes empty.
   updateNarration removes it the instant the first step's text is set (no fade, 0ms). */
.narration-overlay.is-poster {
  opacity: 0;
  visibility: hidden;
}
.scheme-dialog[data-cat="network"]   .narration-overlay { border-left-color: var(--network-color); }
.scheme-dialog[data-cat="workloads"] .narration-overlay { border-left-color: var(--workloads-color); }
.scheme-dialog[data-cat="storage"]   .narration-overlay { border-left-color: var(--storage-color); }
.scheme-dialog[data-cat="cluster"]   .narration-overlay { border-left-color: var(--cluster-color); }
.narration-overlay .narration-step {
  font-size: 11px;
  color: var(--text-dim);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.narration-overlay .narration-text {
  font-size: 13.5px;
  color: var(--text);
  line-height: 1.5;
}

.dialog-progress {
  height: 3px;
  background: rgba(221, 202, 250, 0.07);
  position: relative;
  overflow: hidden;
}
.dialog-progress-fill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 0%;
  background: var(--accent);
  transition: width 0.3s ease;
}
.scheme-dialog[data-cat="network"]   .dialog-progress-fill { background: var(--network-color); }
.scheme-dialog[data-cat="workloads"] .dialog-progress-fill { background: var(--workloads-color); }
.scheme-dialog[data-cat="storage"]   .dialog-progress-fill { background: var(--storage-color); }
.scheme-dialog[data-cat="cluster"]   .dialog-progress-fill { background: var(--cluster-color); }

.dialog-step-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 10px 18px 6px;
  flex-wrap: wrap;
}
.step-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: rgba(221, 202, 250, 0.18);
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  transition: background 0.18s, width 0.2s, opacity 0.18s, border-radius 0.2s;
}
.step-dot:hover {
  background: rgba(221, 202, 250, 0.45);
}
.step-dot:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.step-dot.passed {
  background: var(--accent);
  opacity: 0.5;
}
.step-dot.active {
  width: 22px;
  border-radius: 4px;
  background: var(--accent);
  opacity: 1;
}
.scheme-dialog[data-cat="network"]   .step-dot.passed,
.scheme-dialog[data-cat="network"]   .step-dot.active { background: var(--network-color); }
.scheme-dialog[data-cat="workloads"] .step-dot.passed,
.scheme-dialog[data-cat="workloads"] .step-dot.active { background: var(--workloads-color); }
.scheme-dialog[data-cat="storage"]   .step-dot.passed,
.scheme-dialog[data-cat="storage"]   .step-dot.active { background: var(--storage-color); }
.scheme-dialog[data-cat="cluster"]   .step-dot.passed,
.scheme-dialog[data-cat="cluster"]   .step-dot.active { background: var(--cluster-color); }
.scheme-dialog[data-cat="network"]   .step-dot.passed,
.scheme-dialog[data-cat="workloads"] .step-dot.passed,
.scheme-dialog[data-cat="storage"]   .step-dot.passed,
.scheme-dialog[data-cat="cluster"]   .step-dot.passed { opacity: 0.5; }

.scheme-dialog[data-tinted="true"] .scheme-box.highlight .scheme-box-rect,
.scheme-dialog[data-tinted="true"] .scheme-chip.highlight .scheme-chip-rect,
.scheme-dialog[data-tinted="true"] .scheme-pod.highlight .scheme-pod-rect,
.scheme-dialog[data-tinted="true"] .scheme-cylinder.highlight .scheme-cylinder-body,
.scheme-dialog[data-tinted="true"] .scheme-cylinder.highlight .scheme-cylinder-cap {
  stroke: var(--tint-bright);
}
.scheme-dialog[data-tinted="true"] .scheme-packet {
  fill: var(--tint-bright);
  filter: drop-shadow(0 0 6px var(--tint-bright));
}
.scheme-dialog[data-cat="network"][data-tinted="true"] .scheme-packet {
  fill: #4fe5ff;
  filter: drop-shadow(0 0 6px #4fe5ff);
}
.scheme-dialog[data-cat="network"][data-tinted="true"] .scheme-ripple {
  stroke: #4fe5ff;
  filter: drop-shadow(0 0 4px #4fe5ff);
}
/* Inner fills: the container glyph and cylinder cap carry literal rgba in
   diagrams.css (not tokens), so they need an explicit tinted override. */
.scheme-dialog[data-tinted="true"] .scheme-pod-container {
  fill: var(--tint-glow);
  stroke: var(--tint-base);
}
.scheme-dialog[data-tinted="true"] .scheme-cylinder-cap {
  fill: var(--tint-glow);
}

.scheme-dialog[data-tinted="true"] .ctl-btn,
.scheme-dialog[data-tinted="true"] .ctl-speed {
  border-color: var(--tint-edge);
}
.scheme-dialog[data-tinted="true"] .ctl-btn {
  background: var(--tint-chrome, var(--tint-fill-node));
}
.scheme-dialog[data-tinted="true"] .ctl-btn:hover:not(:disabled),
.scheme-dialog[data-tinted="true"] .ctl-btn.primary,
.scheme-dialog[data-tinted="true"] .ctl-btn[aria-pressed="true"] {
  border-color: var(--tint-bright);
  background: var(--tint-active);
  color: var(--tint-bright);
}
.scheme-dialog[data-tinted="true"] .ctl-btn:disabled {
  opacity: 1;
  color: var(--tint-deep);
}
.scheme-dialog[data-tinted="true"] .ctl-speed button.active {
  background: var(--tint-active);
  color: var(--tint-bright);
}
.scheme-dialog[data-tinted="true"] .dialog-progress { background: var(--tint-glow); }
.scheme-dialog[data-tinted="true"] .step-dot { background: var(--tint-glow); }
.scheme-dialog[data-tinted="true"] .dialog-progress-fill,
.scheme-dialog[data-tinted="true"] .step-dot.passed,
.scheme-dialog[data-tinted="true"] .step-dot.active {
  background: var(--tint-base);
}

.dialog-controls {
  padding: 12px 18px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  border-top: 1px solid var(--border-subtle);
  background: rgba(12, 8, 28, 0.55);
}
.ctl-btn {
  height: 34px;
  min-width: 34px;
  padding: 0 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: rgba(28, 22, 56, 0.6);
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.ctl-btn:hover:not(:disabled) {
  border-color: var(--accent-border);
  background: var(--accent-glow);
  color: var(--text-bright);
}
.ctl-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.ctl-btn.primary {
  border-color: var(--accent-border);
  background: var(--accent-glow);
  color: var(--accent);
}
.ctl-btn[aria-pressed="true"] {
  border-color: var(--accent-border);
  background: var(--accent-glow);
  color: var(--accent);
}
.ctl-spacer { flex: 1; }
.ctl-speed {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
}
.ctl-speed button {
  height: 32px;
  width: 38px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
}
.ctl-speed button.active {
  background: var(--accent-glow);
  color: var(--accent);
}
.ctl-source {
  font-size: 12px;
  color: var(--text-dim);
}
.ctl-source a {
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px dashed var(--text-dim);
}
.ctl-source a:hover { color: var(--text); border-color: var(--text); }

.reduced-notice {
  font-size: 12px;
  color: var(--text-dim);
  background: rgba(255, 255, 255, 0.04);
  padding: 6px 12px;
  border-radius: 6px;
  margin: 8px 18px 0;
  display: none;
}
body.reduced-motion .reduced-notice { display: block; }

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 22px 24px;
  text-align: center;
  font-size: 14px;
  color: var(--text-muted);
}

.footer a { color: var(--accent); text-decoration: none; }
.footer a:hover { text-decoration: underline; }
.footer p + p { margin-top: 4px; }
.disclaimer { font-size: 13px; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: #110f1f; }
::-webkit-scrollbar-thumb { background: #3a3260; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }
* { scrollbar-width: thin; scrollbar-color: #3a3260 #110f1f; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .cat-nav-inner::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 48px;
    background: linear-gradient(to right, transparent, rgba(17, 15, 31, 0.96));
    pointer-events: none;
    z-index: 1;
  }
}

@media (max-width: 900px) {
  .logo-sub { font-size: 12px; }
  .header-inner {
    height: auto;
    padding: 10px 14px;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
  }
  .logo { margin-top: 0; flex: 0 0 100%; }
  .logo-icon { width: 44px; height: 44px; }
  .logo-text { font-size: 23px; }
  .search-container {
    position: relative;
    transform: none;
    left: auto;
    top: auto;
    flex: 1;
    width: auto;
    max-width: none;
    min-width: 0;
  }
  .search-input { height: 37px; font-size: 13.5px; }
  .cat-nav { top: 110px; }
  .cat-nav-sub { top: 151px; }
  .header-actions { gap: 4px; margin-left: 0; }
  .action-btn-label { display: none; }
  .action-btn, .action-btn-link { padding: 0 9px; gap: 0; }
  .action-dropdown { max-width: calc(100vw - 28px); right: 0; left: auto; }
  .cat-nav-inner { padding: 0 14px; }
  .main { padding: 20px 12px 60px; }
  .cards-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
}

@media (max-width: 680px) {
  .main { padding: 18px 14px 60px; }
  .cards-grid { grid-template-columns: 1fr; }
  .dialog-controls { gap: 6px; padding: 10px 12px; }
  .ctl-source { display: none; }
  .narration-overlay {
    top: 10px;
    left: 10px;
    right: 10px;
    width: auto;
    max-width: none;
    min-width: 0;
    padding: 9px 11px;
  }
  .narration-overlay .narration-text { font-size: 12.5px; line-height: 1.4; }
  html { background-attachment: scroll; }
}

@media (hover: none) {
  .cat-btn { min-height: 40px; }
}

@media (max-width: 400px) {
  .logo-text { font-size: 18px; }
  .logo-icon { width: 26px; height: 26px; }
  .cat-nav { top: 97px; }
  .cat-nav-sub { top: 138px; }
  .action-btn, .action-btn-link { height: 30px; }
  .ctl-btn { height: 30px; padding: 0 8px; }
}