/*
 * Request X-Ray presentation.
 * Tokens follow the Atlas Systems brand reference: background 0a0a0f, cards
 * 111118, amber accent f5a623, IBM Plex Mono body, DM Serif Display headings,
 * and the estate's 80px grid so the tool reads as native rather than embedded.
 */

@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=DM+Serif+Display:ital@0;1&display=swap");

:root {
  --bg: #0a0a0f;
  --bg-1: #111118;
  --bg-2: #1a1a24;
  --border: rgba(255, 255, 255, 0.08);
  --border-hi: rgba(255, 255, 255, 0.16);
  --text: #e8e8e0;
  --text-dim: #aaa9a0;
  --text-faint: #555560;
  --accent: #f5a623;
  --accent-hi: #f7b84a;
  --accent-dim: rgba(245, 166, 35, 0.12);
  --grid: rgba(255, 255, 255, 0.03);
  --green: #4ade80;
  --red: #e24b4a;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --serif: "DM Serif Display", Georgia, serif;
  --nav-h: 56px;
  --wrap: 1100px;
}

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

body {
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font: 400 14px/1.6 var(--mono);
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 80px 80px;
  content: "";
  pointer-events: none;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hi);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.visually-hidden {
  position: absolute;
  overflow: hidden;
  width: 1px;
  height: 1px;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* ---------- chrome ---------- */

.topbar {
  position: sticky;
  z-index: 10;
  top: 0;
  display: flex;
  height: var(--nav-h);
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1rem, 4vw, 2.5rem);
  border-bottom: 1px solid var(--border);
  background: rgba(10, 10, 15, 0.9);
  backdrop-filter: blur(12px);
}

.wordmark {
  color: var(--text);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
}

.wordmark-slash {
  color: var(--accent);
}

.topbar-link {
  color: var(--text-dim);
  font-size: 11px;
  letter-spacing: 0.06em;
}

main {
  width: min(100%, var(--wrap));
  margin: 0 auto;
  padding: 2.5rem clamp(1rem, 4vw, 2.5rem) 4rem;
}

.sitefoot {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: space-between;
  width: min(100%, var(--wrap));
  margin: 0 auto;
  padding: 1.5rem clamp(1rem, 4vw, 2.5rem) 3rem;
  border-top: 1px solid var(--border);
  color: var(--text-faint);
  font-size: 11px;
}

/* ---------- intro ---------- */

.intro {
  margin-bottom: 2.5rem;
}

h1 {
  margin-bottom: 1rem;
  font: 400 clamp(2.4rem, 6vw, 4rem) / 1 var(--serif);
  letter-spacing: -0.02em;
}

.lede {
  max-width: 720px;
  margin-bottom: 0.85rem;
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.8;
}

.lede-quiet {
  color: var(--text-faint);
  font-size: 12px;
}

/* ---------- panels ---------- */

.panel {
  margin-bottom: 1.25rem;
  padding: 1.4rem clamp(1rem, 3vw, 1.75rem);
  border: 1px solid var(--border);
  background: var(--bg-1);
}

.panel-title {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: baseline;
  margin-bottom: 0.5rem;
  color: var(--accent);
  font: 400 10px/1.6 var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.panel-title-sub {
  color: var(--text);
  letter-spacing: 0.08em;
}

.panel-note {
  max-width: 720px;
  margin-bottom: 1.1rem;
  color: var(--text-faint);
  font-size: 11px;
  line-height: 1.7;
}

/* ---------- buttons ---------- */

.btn {
  padding: 0.5rem 0.95rem;
  border: 1px solid var(--border-hi);
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  font: 400 11px var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.btn:hover {
  border-color: var(--accent);
  color: var(--text);
}

.btn-primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--bg);
  font-weight: 500;
}

.btn-primary:hover {
  background: var(--accent-hi);
  color: var(--bg);
}

.btn[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent);
}

.preset-row,
.stage-actions,
.table-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.preset-btn {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  align-items: flex-start;
  padding: 0.6rem 0.85rem;
  text-transform: none;
  letter-spacing: 0;
}

.preset-btn strong {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.preset-btn span {
  color: var(--text-faint);
  font-size: 10px;
}

.stage-actions {
  margin-bottom: 1.5rem;
}

.table-actions {
  margin-bottom: 1rem;
}

.stage-hint {
  color: var(--text-faint);
  font-size: 11px;
}

/* ---------- switches ---------- */

.switch-grid {
  display: grid;
  gap: 1px;
  border: 1px solid var(--border);
  background: var(--border);
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
}

.switch-group {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1rem;
  background: var(--bg);
}

.switch-owner {
  color: var(--accent);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.switch-row {
  display: flex;
  gap: 0.6rem;
  align-items: center;
}

.switch-row label {
  color: var(--text);
  cursor: pointer;
  font-size: 12px;
}

.switch-row input[type="checkbox"] {
  width: 15px;
  height: 15px;
  flex: none;
  accent-color: var(--accent);
  cursor: pointer;
}

.switch-row select {
  margin-left: auto;
  padding: 0.25rem 0.4rem;
  border: 1px solid var(--border-hi);
  background: var(--bg-2);
  color: var(--text);
  cursor: pointer;
  font: 400 12px var(--mono);
}

.switch-help {
  margin-top: auto;
  color: var(--text-faint);
  font-size: 10px;
  line-height: 1.65;
}

/* ---------- diagram ---------- */

.diagram {
  margin-bottom: 1.5rem;
  padding: 0.5rem 0;
  border: 1px solid var(--border);
  background: var(--bg);
}

.pipeline {
  display: block;
  width: 100%;
  height: auto;
}

.connectors line {
  stroke: var(--border-hi);
  stroke-dasharray: 3 5;
  stroke-width: 1;
}

.node-ring {
  fill: var(--bg-1);
  stroke: var(--border-hi);
  stroke-width: 1.5;
  transition: stroke 0.2s, fill 0.2s;
}

.node.is-active .node-ring {
  fill: var(--accent-dim);
  stroke: var(--accent);
}

.node.is-warn .node-ring {
  fill: rgba(245, 166, 35, 0.06);
  stroke: var(--accent);
}

.node.is-ok .node-ring {
  fill: rgba(74, 222, 128, 0.1);
  stroke: var(--green);
}

.node.is-fail .node-ring {
  fill: rgba(226, 75, 74, 0.12);
  stroke: var(--red);
}

/* Phosphor decay: bright on resolve, then fading over roughly half a second. */
.node.just-resolved .node-ring {
  filter: drop-shadow(0 0 9px currentcolor);
}

.node.is-active,
.node.is-warn {
  color: var(--accent);
}

.node.is-ok {
  color: var(--green);
}

.node.is-fail {
  color: var(--red);
}

.node .node-ring {
  filter: drop-shadow(0 0 0 transparent);
  transition: filter 0.52s ease-out, stroke 0.2s, fill 0.2s;
}

.packet {
  fill: var(--accent);
  opacity: 0;
  transition: opacity 0.18s;
}

.packet.is-visible {
  opacity: 1;
}

.packet.is-fail {
  fill: var(--red);
}

/* ---------- layer tabs ---------- */

.layer-tabs {
  display: grid;
  gap: 0;
  padding: 0 0 0.35rem;
  grid-template-columns: repeat(7, 1fr);
}

.layer-tab {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  align-items: center;
  padding: 0.35rem 0.15rem;
  border: 0;
  border-top: 1px solid transparent;
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  font: 400 10px var(--mono);
  letter-spacing: 0.04em;
}

.layer-tab:hover {
  color: var(--text);
}

.layer-tab[aria-pressed="true"] {
  border-top-color: var(--accent);
  color: var(--accent);
}

.layer-chip {
  min-height: 1.2em;
  color: var(--text-faint);
  font-size: 9px;
  letter-spacing: 0.05em;
}

.layer-chip[data-state="ok"] {
  color: var(--green);
}

.layer-chip[data-state="fail"] {
  color: var(--red);
}

.layer-chip[data-state="warn"] {
  color: var(--accent);
}

/* ---------- budget ---------- */

.budget {
  margin-bottom: 1.25rem;
}

.budget-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.4rem;
  color: var(--text-faint);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.budget-figures {
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

.budget-track {
  overflow: hidden;
  height: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
}

.budget-fill {
  display: block;
  width: 0;
  height: 100%;
  background: var(--accent);
  transition: width 0.12s linear, background 0.2s;
}

.budget-fill.is-over {
  background: var(--red);
}

/* ---------- metrics ---------- */

.metrics {
  display: grid;
  gap: 1px;
  margin-bottom: 1.25rem;
  border: 1px solid var(--border);
  background: var(--border);
  grid-template-columns: repeat(3, 1fr);
}

.metric {
  padding: 0.7rem 0.85rem;
  background: var(--bg);
}

.metric dt {
  margin-bottom: 0.25rem;
  color: var(--text-faint);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.metric dd {
  color: var(--text);
  font-size: 13px;
}

.metric dd[data-state="ok"] {
  color: var(--green);
}

.metric dd[data-state="fail"] {
  color: var(--red);
}

.metric dd[data-state="warn"] {
  color: var(--accent);
}

.explanation {
  min-height: 3.4em;
  max-width: 760px;
  padding-left: 0.9rem;
  border-left: 2px solid var(--accent);
  color: var(--text-dim);
  font-size: 12px;
  line-height: 1.85;
}

/* ---------- inspector ---------- */

.inspector-grid {
  display: grid;
  gap: 1px;
  border: 1px solid var(--border);
  background: var(--border);
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.inspector-block {
  padding: 1rem;
  background: var(--bg);
}

.inspector-block h3 {
  margin-bottom: 0.75rem;
  color: var(--text-faint);
  font: 400 9px var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.kv {
  display: grid;
  gap: 0.35rem 0.9rem;
  grid-template-columns: minmax(90px, auto) 1fr;
}

.kv dt {
  color: var(--text-faint);
  font-size: 11px;
}

.kv dd {
  color: var(--text-dim);
  font-size: 11px;
}

.kv dd[data-state="ok"] {
  color: var(--green);
}

.kv dd[data-state="fail"] {
  color: var(--red);
}

.kv dd[data-state="warn"] {
  color: var(--accent);
}

.kv-empty {
  color: var(--text-faint);
  font-size: 11px;
  grid-column: 1 / -1;
}

/* ---------- hop table ---------- */

.table-scroll {
  overflow-x: auto;
}

.hop-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
}

.hop-table th,
.hop-table td {
  padding: 0.45rem 0.7rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
}

.hop-table th {
  color: var(--text-faint);
  font-weight: 400;
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hop-table td {
  color: var(--text-dim);
}

.hop-table td.note {
  white-space: normal;
  min-width: 260px;
  color: var(--text-faint);
}

.hop-table td[data-state="ok"] {
  color: var(--green);
}

.hop-table td[data-state="fail"] {
  color: var(--red);
}

.hop-table td[data-state="warn"] {
  color: var(--accent);
}

.hop-table tbody tr:hover td {
  background: var(--bg-2);
}

/* ---------- compare ---------- */

.compare-grid {
  display: grid;
  gap: 1px;
  border: 1px solid var(--border);
  background: var(--border);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.compare-card {
  padding: 1rem;
  background: var(--bg);
}

.compare-card h3 {
  margin-bottom: 0.7rem;
  color: var(--accent);
  font: 400 9px var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.compare-delta {
  margin-top: 0.8rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--border);
  color: var(--text-faint);
  font-size: 10px;
  line-height: 1.7;
}

#compare-grid > .panel-note {
  margin: 0;
  padding: 1rem;
  background: var(--bg);
  grid-column: 1 / -1;
}

/* ---------- narrow screens ---------- */

@media (max-width: 640px) {
  .layer-tab {
    font-size: 8px;
  }

  .layer-chip {
    font-size: 7px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .node .node-ring,
  .packet,
  .budget-fill,
  .btn {
    transition: none;
  }
}