:root {
  color-scheme: dark;
  --ink: #09100e;
  --ink-raised: #0d1714;
  --panel: rgba(17, 29, 25, 0.92);
  --panel-strong: #14221d;
  --line: rgba(176, 207, 193, 0.16);
  --line-strong: rgba(176, 207, 193, 0.3);
  --text: #edf5f1;
  --muted: #8fa39a;
  --faint: #82958c;
  --accent: #c7f36b;
  --accent-rgb: 199, 243, 107;
  --accent-ink: #17200b;
  --danger: #ff756f;
  --warning: #f2b85b;
  --success: #72e2ad;
  --radius: 2px;
  --sans: "IBM Plex Sans", "Aptos", "Helvetica Neue", sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

body[data-system="elhub"] {
  --accent: #69d4ff;
  --accent-rgb: 105, 212, 255;
  --accent-ink: #081a22;
}

body[data-system="esett"] {
  --accent: #ffbd69;
  --accent-rgb: 255, 189, 105;
  --accent-ink: #241506;
}

body[data-system="erp"] {
  --accent: #e8a5ff;
  --accent-rgb: 232, 165, 255;
  --accent-ink: #210c29;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--ink);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 78% 3%, rgba(var(--accent-rgb), 0.08), transparent 31rem),
    linear-gradient(rgba(137, 177, 158, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(137, 177, 158, 0.025) 1px, transparent 1px),
    var(--ink);
  background-size: auto, 38px 38px, 38px 38px, auto;
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
a,
input,
select,
textarea {
  outline: none;
}

:focus-visible {
  box-shadow: 0 0 0 2px var(--ink), 0 0 0 4px var(--accent) !important;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  color: var(--accent-ink);
  background: var(--accent);
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 120ms ease-out;
}

.skip-link:focus {
  transform: translateY(0);
}

.app-frame {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  min-height: 100vh;
}

.system-rail {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  flex-direction: column;
  height: 100vh;
  padding: 28px 18px 20px;
  border-right: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(var(--accent-rgb), 0.035), transparent 35%),
    rgba(7, 14, 12, 0.96);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 700;
  box-shadow: inset 0 0 0 5px rgba(var(--accent-rgb), 0.05);
}

.brand strong,
.brand small {
  display: block;
  letter-spacing: 0.12em;
}

.brand strong {
  font-family: var(--mono);
  font-size: 11px;
}

.brand small {
  margin-top: 2px;
  color: var(--faint);
  font-size: 8px;
}

.system-nav {
  margin-top: 54px;
}

.rail-label,
.panel-index,
.kicker {
  margin: 0;
  color: var(--faint);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.rail-label {
  margin: 0 12px 12px;
}

.system-nav a {
  position: relative;
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 10px;
  align-items: center;
  min-height: 65px;
  padding: 10px 12px;
  border: 1px solid transparent;
  color: var(--muted);
  text-decoration: none;
  transition: 160ms ease;
  transition-property: color, background, border-color, transform;
}

.system-nav a::before {
  position: absolute;
  left: -19px;
  width: 2px;
  height: 0;
  background: var(--accent);
  content: "";
  transition: height 160ms ease;
}

.system-nav a:hover {
  color: var(--text);
  transform: translateX(2px);
}

.system-nav a.active {
  border-color: rgba(var(--accent-rgb), 0.28);
  color: var(--text);
  background: linear-gradient(90deg, rgba(var(--accent-rgb), 0.11), rgba(var(--accent-rgb), 0.025));
}

.system-nav a.active::before {
  height: 38px;
}

.system-nav strong,
.system-nav small {
  display: block;
}

.system-nav strong {
  font-size: 14px;
  font-weight: 600;
}

.system-nav small {
  margin-top: 1px;
  color: var(--faint);
  font-size: 11px;
}

.system-index {
  color: var(--faint);
  font-family: var(--mono);
  font-size: 10px;
}

.active .system-index {
  color: var(--accent);
}

.rail-run {
  display: grid;
  grid-template-columns: 8px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  margin-top: auto;
  padding: 15px 12px;
  border-top: 1px solid var(--line);
}

.rail-run small,
.rail-run code {
  display: block;
}

.rail-run small {
  color: var(--faint);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.rail-run code {
  overflow: hidden;
  margin-top: 4px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pulse {
  width: 7px;
  height: 7px;
  margin-top: 5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0.5);
  animation: signal 2.6s infinite;
}

@keyframes signal {
  70% { box-shadow: 0 0 0 7px rgba(var(--accent-rgb), 0); }
  100% { box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0); }
}

.console {
  width: min(1500px, 100%);
  padding: 34px clamp(24px, 4vw, 64px) 60px;
}

.console-header {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  align-items: flex-start;
  margin-bottom: 24px;
  animation: enter 420ms ease-out both;
}

@keyframes enter {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.kicker {
  color: var(--accent);
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin: 10px 0 8px;
  font-size: clamp(30px, 4.2vw, 55px);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.02;
}

.lede {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.session-card {
  display: grid;
  grid-template-columns: 10px minmax(110px, 1fr) auto;
  gap: 11px;
  align-items: center;
  min-width: 285px;
  padding: 12px 13px;
  border: 1px solid var(--line);
  background: rgba(11, 20, 17, 0.74);
}

.session-light {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--faint);
}

.session-light[data-connected="true"] {
  background: var(--success);
  box-shadow: 0 0 10px rgba(114, 226, 173, 0.7);
}

.session-card small,
.session-card strong {
  display: block;
}

.session-card small {
  color: var(--faint);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.session-card strong {
  font-size: 12px;
  font-weight: 600;
}

.icon-button {
  padding: 6px 8px;
  border: 0;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
}

.icon-button:hover {
  color: var(--accent);
}

.connection-panel {
  margin-bottom: 18px;
  padding: 17px;
  border: 1px solid rgba(var(--accent-rgb), 0.25);
  background: rgba(var(--accent-rgb), 0.045);
  animation: enter 180ms ease-out both;
}

.connection-grid {
  display: grid;
  grid-template-columns: 0.7fr 1.2fr 1.4fr 1.2fr 1fr auto;
  gap: 12px;
  align-items: end;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--text);
  background: rgba(5, 12, 10, 0.72);
  transition: border-color 140ms ease, background 140ms ease;
}

input,
select {
  min-height: 40px;
  padding: 8px 10px;
}

textarea {
  min-height: 280px;
  resize: vertical;
  padding: 14px;
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.65;
  tab-size: 2;
}

input:hover,
select:hover,
textarea:hover,
input:focus,
select:focus,
textarea:focus {
  border-color: rgba(var(--accent-rgb), 0.62);
  background: rgba(7, 16, 13, 0.92);
}

input[readonly] {
  color: var(--faint);
}

.connection-actions {
  display: flex;
  gap: 7px;
}

.button {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.055em;
  text-transform: uppercase;
  transition: 150ms ease;
  transition-property: transform, color, background, border-color, opacity;
}

.button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.button.primary {
  color: var(--accent-ink);
  background: var(--accent);
}

.button.primary:hover:not(:disabled) {
  box-shadow: 0 8px 26px rgba(var(--accent-rgb), 0.13);
}

.button.quiet {
  border-color: var(--line-strong);
  color: var(--muted);
  background: transparent;
}

.button.quiet:hover:not(:disabled) {
  border-color: rgba(var(--accent-rgb), 0.5);
  color: var(--text);
}

.button:disabled {
  cursor: wait;
  opacity: 0.42;
}

.desk-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 18px;
  align-items: start;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.16);
}

.composer-panel {
  padding: clamp(18px, 2.2vw, 29px);
  animation: enter 480ms 70ms ease-out both;
}

.panel-heading {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 22px;
}

.panel-heading h2 {
  margin: 5px 0 0;
  font-size: 19px;
  font-weight: 550;
  letter-spacing: -0.02em;
}

.status-pill,
.journal-state,
.source-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 24px;
  padding: 3px 8px;
  border: 1px solid var(--line-strong);
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.status-pill[data-tone="pending"] {
  border-color: rgba(242, 184, 91, 0.5);
  color: var(--warning);
}

.status-pill[data-tone="success"] {
  border-color: rgba(114, 226, 173, 0.48);
  color: var(--success);
}

.status-pill[data-tone="error"] {
  border-color: rgba(255, 117, 111, 0.5);
  color: var(--danger);
}

.status-pill[data-tone="reset"] {
  border-color: rgba(var(--accent-rgb), 0.45);
  color: var(--accent);
}

.scenario-row,
.reference-grid {
  display: grid;
  gap: 13px;
}

.scenario-row {
  grid-template-columns: minmax(0, 1.5fr) minmax(150px, 0.5fr);
}

.reference-grid {
  grid-template-columns: 1fr 1fr;
  margin: 16px 0;
}

.input-unit {
  position: relative;
}

.input-unit input {
  padding-right: 42px;
}

.input-unit > span {
  position: absolute;
  top: 50%;
  right: 10px;
  color: var(--faint);
  font-family: var(--mono);
  font-size: 9px;
  transform: translateY(-50%);
}

.scenario-note {
  min-height: 46px;
  margin-top: 12px;
  padding: 11px 13px;
  border-left: 2px solid var(--accent);
  color: var(--muted);
  background: rgba(var(--accent-rgb), 0.045);
  font-size: 12px;
}

.payload-field > span {
  color: var(--faint);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.4;
  text-transform: none;
}

.delivery-controls {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  margin-top: 18px;
}

.failure-switch {
  display: flex;
  grid-template-columns: none;
  gap: 9px;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.failure-switch input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.failure-switch > span {
  position: relative;
  width: 31px;
  height: 17px;
  border: 1px solid var(--line-strong);
  background: var(--ink);
}

.failure-switch > span::after {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 9px;
  height: 9px;
  background: var(--muted);
  content: "";
  transition: 140ms ease;
}

.failure-switch input:checked + span {
  border-color: rgba(255, 117, 111, 0.65);
}

.failure-switch input:checked + span::after {
  left: 17px;
  background: var(--danger);
}

.failure-switch input:focus-visible + span {
  box-shadow: 0 0 0 2px var(--ink), 0 0 0 4px var(--accent);
}

.button-cluster {
  display: flex;
  gap: 9px;
}

.context-stack {
  display: grid;
  gap: 14px;
  animation: enter 500ms 140ms ease-out both;
}

.route-panel,
.metrics-panel {
  padding: 20px;
}

.route-node {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 11px;
  align-items: center;
  margin-top: 18px;
}

.route-node > span {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(var(--accent-rgb), 0.5);
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.06);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
}

.route-node.target > span {
  border-color: var(--line-strong);
  color: var(--muted);
  background: transparent;
}

.route-node small,
.route-node strong {
  display: block;
}

.route-node small {
  color: var(--faint);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.route-node strong {
  margin-top: 2px;
  font-size: 12px;
}

.route-line {
  position: relative;
  display: flex;
  min-height: 58px;
  align-items: center;
  margin-left: 18px;
  padding-left: 30px;
}

.route-line i {
  position: absolute;
  left: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(var(--accent), var(--line-strong));
}

.route-line i::after {
  position: absolute;
  bottom: -1px;
  left: -2px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  content: "";
}

.route-line code {
  overflow-wrap: anywhere;
  color: var(--faint);
  font-family: var(--mono);
  font-size: 9px;
  line-height: 1.45;
}

.metrics-panel dl {
  margin: 14px 0 0;
}

.metrics-panel dl div {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.metrics-panel dl div:last-child {
  border-bottom: 0;
}

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

.metrics-panel dd {
  margin: 0;
  color: var(--text);
  font-family: var(--mono);
  font-size: 10px;
  text-align: right;
}

.guardrail-card {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 10px;
  padding: 18px 20px;
  border: 1px dashed rgba(var(--accent-rgb), 0.35);
  color: var(--muted);
  background: rgba(var(--accent-rgb), 0.025);
}

.guardrail-card > span {
  color: var(--accent);
  font-size: 21px;
  line-height: 1;
}

.guardrail-card strong {
  color: var(--text);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.guardrail-card p {
  margin: 6px 0 0;
  font-size: 11px;
  line-height: 1.55;
}

.history-panel {
  margin-top: 18px;
  padding: 23px 26px;
  animation: enter 520ms 190ms ease-out both;
}

.history-panel .panel-heading {
  margin-bottom: 12px;
}

.history-count {
  color: var(--faint);
  font-family: var(--mono);
  font-size: 10px;
}

.history-table-wrap {
  overflow-x: auto;
}

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

caption {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

th,
td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

th {
  color: var(--faint);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

tbody tr {
  transition: background 120ms ease;
}

tbody tr:hover {
  background: rgba(var(--accent-rgb), 0.025);
}

td time,
td code {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 9px;
}

td strong,
td code {
  display: block;
}

td strong {
  margin-bottom: 2px;
  font-size: 11px;
  font-weight: 550;
}

.source-chip[data-system="nord-pool"] { color: #c7f36b; }
.source-chip[data-system="elhub"] { color: #69d4ff; }
.source-chip[data-system="esett"] { color: #ffbd69; }
.source-chip[data-system="erp"] { color: #e8a5ff; }

.journal-state[data-tone="success"] { color: var(--success); }
.journal-state[data-tone="error"] { color: var(--danger); }
.journal-state[data-tone="reset"] { color: var(--accent); }
.journal-state[data-tone="pending"] { color: var(--warning); }

.history-empty {
  margin: 18px 0 2px;
  color: var(--faint);
  font-size: 12px;
  text-align: center;
}

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

@media (max-width: 1120px) {
  .connection-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .desk-grid {
    grid-template-columns: minmax(0, 1fr) 270px;
  }
}

@media (max-width: 900px) {
  .app-frame {
    grid-template-columns: 1fr;
  }

  .system-rail {
    position: static;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 18px;
    height: auto;
    padding: 14px 18px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .brand small,
  .rail-label,
  .rail-run {
    display: none;
  }

  .system-nav {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    margin: 0;
  }

  .system-nav a {
    grid-template-columns: 1fr;
    min-height: 48px;
    padding: 7px 9px;
  }

  .system-nav a::before,
  .system-index,
  .system-nav small {
    display: none;
  }

  .system-nav strong {
    font-size: 11px;
    text-align: center;
  }

  .console {
    padding-top: 26px;
  }

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

  .context-stack {
    grid-template-columns: 1fr 1fr;
  }

  .guardrail-card {
    grid-column: 1 / -1;
  }
}

@media (max-width: 680px) {
  .console {
    padding: 21px 14px 40px;
  }

  .console-header {
    display: grid;
    gap: 20px;
  }

  .session-card {
    min-width: 0;
  }

  .connection-grid,
  .scenario-row,
  .reference-grid,
  .context-stack {
    grid-template-columns: 1fr;
  }

  .delivery-controls {
    display: grid;
  }

  .button-cluster {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .history-panel {
    padding: 19px 16px;
  }

  h1 {
    font-size: 34px;
  }
}

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