:root {
  --ink-strong: #16324d;
  --ink: #254764;
  --muted: #5a7691;
  --paper: #f4f8fc;
  --paper-deep: #eaf1f8;
  --panel: rgba(255, 255, 255, 0.9);
  --panel-strong: rgba(255, 255, 255, 0.96);
  --line: rgba(134, 160, 188, 0.26);
  --accent: #0f5fa8;
  --accent-deep: #0b4c87;
  --accent-soft: rgba(15, 95, 168, 0.12);
  --sage: #2b638c;
  --sage-soft: rgba(43, 99, 140, 0.1);
  --gold: #6f90b4;
  --shadow: 0 28px 80px rgba(27, 54, 86, 0.12);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --transition: 180ms ease;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(142, 193, 238, 0.3), transparent 28%),
    radial-gradient(circle at top right, rgba(197, 225, 246, 0.34), transparent 32%),
    linear-gradient(180deg, #f4f8fc 0%, #edf3f9 52%, #f7fbff 100%);
  font-family: "Avenir Next", "Segoe UI", sans-serif;
}

h1,
h2,
h3,
strong,
button,
label,
select {
  font-family: "Avenir Next", "Segoe UI", sans-serif;
}

.backdrop {
  position: fixed;
  inset: auto;
  width: 34vw;
  height: 34vw;
  border-radius: 999px;
  filter: blur(50px);
  pointer-events: none;
  opacity: 0.32;
}

.backdrop-a {
  top: -9vw;
  right: -6vw;
  background: rgba(15, 95, 168, 0.18);
}

.backdrop-b {
  bottom: -10vw;
  left: -7vw;
  background: rgba(126, 176, 221, 0.18);
}

.page-shell {
  position: relative;
  max-width: 1440px;
  margin: 0 auto;
  padding: 36px 28px 80px;
}

.masthead {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 420px);
  align-items: start;
}

.brand-block h1 {
  margin: 6px 0 12px;
  font-size: clamp(2.8rem, 4vw, 4.5rem);
  line-height: 0.96;
  letter-spacing: -0.03em;
  color: var(--ink-strong);
}

.brand-block p:last-child {
  max-width: 54ch;
  font-size: 1.04rem;
  line-height: 1.65;
}

.eyebrow,
.section-kicker,
.console-label,
.status-chip span,
.metric-label,
.alert-section-label,
.field-label {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.glass-panel {
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.58);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.auth-console,
.status-ribbon,
.auth-gate,
.library-column,
.kb-summary,
.empty-state,
.alert-card,
.modal-card {
  border: 1px solid var(--line);
}

.auth-console {
  padding: 16px 18px;
}

.auth-console-bar {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
}

.auth-console-chips {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.auth-actions,
.modal-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.button,
.icon-button {
  border: 0;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}

.button {
  padding: 12px 18px;
  border-radius: 999px;
  font-size: 0.98rem;
}

.button:hover,
.icon-button:hover,
.document-pick:hover,
.kb-list button:hover,
.feedback-button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  box-shadow: 0 14px 28px rgba(15, 95, 168, 0.24);
}

.button-secondary {
  color: var(--ink-strong);
  background: rgba(244, 249, 255, 0.96);
  border: 1px solid var(--line);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
  transform: none;
  box-shadow: none;
}

.status-ribbon {
  margin-top: 22px;
  padding: 14px 16px;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.status-chip {
  padding: 10px 12px;
  border-radius: var(--radius-md);
  background: rgba(248, 252, 255, 0.74);
  border: 1px solid rgba(134, 160, 188, 0.18);
  min-width: 150px;
}

.status-chip strong {
  display: block;
  margin-top: 6px;
  font-size: 0.96rem;
  color: var(--ink-strong);
}

.auth-gate {
  margin-top: 24px;
  padding: 22px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}

.auth-gate h2,
.kb-summary h2,
.empty-state h2 {
  margin: 8px 0 10px;
  font-size: clamp(1.8rem, 2.6vw, 2.5rem);
  line-height: 1.05;
}

.auth-gate p,
.muted-copy,
.section-copy,
.document-subhead {
  color: var(--muted);
  line-height: 1.65;
}

.workspace {
  margin-top: 24px;
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(300px, 360px) minmax(0, 1fr);
}

.library-column {
  padding: 20px;
  align-self: start;
  position: sticky;
  top: 18px;
}

.library-header h2 {
  margin: 8px 0 12px;
  font-size: 2rem;
}

.selected-kb-banner {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid rgba(134, 160, 188, 0.18);
}

.selected-kb-banner h3 {
  margin: 8px 0 0;
  font-size: 1.15rem;
  line-height: 1.35;
  color: var(--ink-strong);
}

.compact-kb-summary {
  margin-top: 14px;
}

.compact-kb-summary .summary-metrics {
  grid-template-columns: 1fr;
}

.compact-kb-summary .metric-card {
  background: rgba(247, 251, 255, 0.7);
}

.kb-select,
.text-field,
.text-area {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-strong);
  padding: 14px 16px;
  font: inherit;
}

.kb-select,
.text-field {
  min-height: 50px;
}

.kb-select {
  height: 52px;
  line-height: 1.2;
  padding-right: 16px;
  appearance: auto;
  -webkit-appearance: menulist;
  text-overflow: ellipsis;
}

.text-area {
  resize: vertical;
  min-height: 170px;
}

.kb-list {
  margin-top: 18px;
  display: grid;
  gap: 10px;
}

.document-pick {
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(134, 160, 188, 0.18);
  background: rgba(255, 255, 255, 0.94);
  text-align: left;
  cursor: pointer;
  transition: transform var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.document-pick strong {
  display: block;
  font-size: 1.05rem;
  color: var(--ink-strong);
}

.document-pick span {
  display: block;
  color: var(--muted);
  line-height: 1.45;
}

.document-pick.is-active {
  background: rgba(240, 247, 255, 0.98);
  border-color: rgba(15, 95, 168, 0.34);
  box-shadow: 0 10px 24px rgba(15, 95, 168, 0.1);
}

.content-column {
  display: grid;
  gap: 18px;
}

.content-view-switcher,
.outcome-explorer {
  padding: 20px;
}

.content-view-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.twin-workspace-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.content-view-tab {
  border: 1px solid rgba(134, 160, 188, 0.22);
  background: rgba(247, 251, 255, 0.96);
  color: var(--ink-strong);
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform var(--transition), background var(--transition), border-color var(--transition);
}

.content-view-tab.is-active {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: #ffffff;
  border-color: transparent;
}

.content-view-tab.is-disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.content-view-switcher .muted-copy {
  margin: 14px 0 0;
}

.kb-summary,
.empty-state {
  padding: 20px;
}

.kb-summary {
  display: grid;
  gap: 16px;
}

.kb-summary h2 {
  margin: 0;
}

.summary-metrics {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
}

.metric-card {
  padding: 14px;
  border-radius: var(--radius-md);
  background: rgba(247, 251, 255, 0.98);
  border: 1px solid rgba(134, 160, 188, 0.18);
}

.metric-card strong {
  display: block;
  margin-top: 10px;
  font-size: 1.7rem;
  color: var(--ink-strong);
}

.alerts-stream {
  display: grid;
  gap: 16px;
}

.outcome-explorer {
  display: grid;
  gap: 18px;
}

.twin-panel {
  display: grid;
  gap: 16px;
}

.outcome-explorer-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: end;
}

.outcome-explorer-header h2 {
  margin: 8px 0 0;
  font-size: clamp(1.6rem, 2.2vw, 2.2rem);
}

.outcome-explorer-metrics {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
}

.outcome-explorer-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(300px, 380px) minmax(0, 1fr);
}

.studio-selector-grid,
.studio-context-grid,
.studio-comparison-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.outcome-panel,
.lever-panel {
  display: grid;
  gap: 14px;
}

.outcome-picker-bar {
  position: sticky;
  top: 0;
  z-index: 4;
  display: grid;
  gap: 8px;
  padding: 14px 16px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(134, 160, 188, 0.18);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 8px 24px rgba(27, 54, 86, 0.05);
}

.confidence-focus-bar {
  display: grid;
  gap: 8px;
}

.confidence-focus-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.confidence-focus-caption {
  margin: 0;
}

.outcome-summary-card,
.outcome-evidence-card,
.outcome-lever-card {
  padding: 16px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(134, 160, 188, 0.18);
  background: rgba(255, 255, 255, 0.98);
}

.outcome-summary-card h3,
.lever-panel-header h3 {
  margin: 8px 0 10px;
  font-size: 1.45rem;
  color: var(--ink-strong);
}

.outcome-summary-meta,
.outcome-lever-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.outcome-explain-actions {
  margin-top: 14px;
}

.outcome-explain-button {
  padding: 10px 14px;
}

.lever-panel-header {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: end;
}

.outcome-lever-list {
  display: grid;
  gap: 12px;
}

#outcome-lever-list {
  max-height: min(58vh, 680px);
  overflow-y: auto;
  padding-right: 6px;
  align-content: start;
}

.lever-guidance {
  margin: 0;
  text-align: right;
  max-width: 24ch;
}

.outcome-lever-card-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}

.outcome-lever-facts {
  margin-top: 10px;
  display: grid;
  gap: 2px;
}

.outcome-lever-choice-card {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(180px, 220px) minmax(0, 1fr);
  align-items: center;
}

.outcome-lever-choice-values {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-start;
}

.outcome-value-pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 11px;
  border-radius: 999px;
  background: rgba(15, 95, 168, 0.08);
  color: var(--ink-strong);
  font-size: 0.9rem;
  line-height: 1.3;
}

.studio-lever-matrix-header,
.studio-lever-row {
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(180px, 220px) minmax(140px, 1fr) minmax(220px, 1.2fr);
  align-items: start;
}

.studio-lever-matrix-header {
  padding: 0 0 8px;
  color: var(--muted);
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.studio-lever-matrix {
  display: grid;
  gap: 12px;
}

.studio-lever-group-header {
  padding: 10px 12px;
  border-top: 1px solid rgba(134, 160, 188, 0.18);
  border-radius: var(--radius-md);
  background: rgba(244, 249, 255, 0.94);
}

.studio-lever-row {
  position: relative;
  padding: 14px 14px 14px 18px;
  border-radius: var(--radius-md);
  border-top: 1px solid rgba(134, 160, 188, 0.14);
  background: rgba(255, 255, 255, 0.9);
  overflow: hidden;
}

.studio-lever-row:first-child {
  border-top: 0;
}

.studio-lever-row::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: rgba(15, 95, 168, 0.48);
}

.studio-lever-row-common {
  background: rgba(244, 249, 255, 0.96);
}

.studio-lever-row-potential_only {
  background: rgba(232, 247, 241, 0.9);
}

.studio-lever-row-potential_only::before {
  background: rgba(28, 132, 91, 0.58);
}

.studio-lever-row-current_only {
  background: rgba(255, 247, 232, 0.9);
}

.studio-lever-row-current_only::before {
  background: rgba(194, 127, 35, 0.58);
}

.studio-lever-cell {
  display: grid;
  gap: 6px;
}

.studio-lever-label strong {
  color: var(--ink-strong);
}

.studio-current-evidence {
  color: var(--ink-strong);
  line-height: 1.45;
}

.studio-selected-value {
  margin: 0;
}

.studio-lever-note {
  margin: 0;
  font-weight: 600;
  color: var(--ink-strong);
}

.studio-result-card {
  gap: 10px;
}

.studio-status-pill {
  text-transform: none;
}

.studio-status-no_change {
  background: rgba(32, 143, 74, 0.12);
}

.studio-status-direct_match {
  background: rgba(15, 95, 168, 0.12);
}

.studio-status-high_support {
  background: rgba(53, 122, 201, 0.12);
}

.studio-status-caution {
  background: rgba(214, 146, 31, 0.16);
}

.studio-status-low_support {
  background: rgba(134, 160, 188, 0.16);
}

.twin-toggle-control {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-strong);
  font-size: 0.92rem;
}

.twin-toggle-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.twin-toggle-slider {
  position: relative;
  width: 52px;
  height: 30px;
  border-radius: 999px;
  background: rgba(134, 160, 188, 0.28);
  transition: background var(--transition);
}

.twin-toggle-slider::after {
  content: "";
  position: absolute;
  top: 4px;
  left: 4px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 4px 10px rgba(27, 54, 86, 0.18);
  transition: transform var(--transition);
}

.twin-toggle-input:checked + .twin-toggle-slider {
  background: rgba(15, 95, 168, 0.5);
}

.twin-toggle-input:checked + .twin-toggle-slider::after {
  transform: translateX(22px);
}

.twin-control-host {
  display: grid;
  gap: 10px;
}

.twin-slider-control {
  display: grid;
  gap: 10px;
}

.twin-slider-bounds {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.92rem;
}

.twin-slider {
  width: 100%;
  accent-color: var(--accent);
}

.alert-card {
  padding: 18px;
  background: rgba(255, 255, 255, 0.97);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.alert-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
  margin-bottom: 14px;
}

.alert-header h3 {
  margin: 10px 0 0;
  font-size: 1.55rem;
  line-height: 1.18;
  color: var(--ink-strong);
}

.alert-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.section-card {
  display: grid;
  gap: 12px;
  min-height: 100%;
  padding: 14px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(134, 160, 188, 0.18);
  background: rgba(255, 255, 255, 0.98);
}

.section-card.section-observations {
  box-shadow: inset 0 3px 0 rgba(15, 95, 168, 0.7);
}

.section-card.section-situation {
  box-shadow: inset 0 3px 0 rgba(76, 122, 167, 0.68);
}

.section-card.section-remediation {
  box-shadow: inset 0 3px 0 rgba(30, 101, 148, 0.68);
}

.section-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(134, 160, 188, 0.18);
}

.section-title {
  margin: 6px 0 0;
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--ink-strong);
}

.section-card.section-observations .section-title {
  color: #0b4c87;
}

.section-card.section-situation .section-title {
  color: #355d86;
}

.section-card.section-remediation .section-title {
  color: #1c5d8d;
}

.feedback-button {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(134, 160, 188, 0.2);
  background: rgba(247, 251, 255, 0.95);
  color: var(--ink-strong);
  font-size: 0.86rem;
  cursor: pointer;
}

.observation-quote {
  margin: 0;
  padding-left: 16px;
  border-left: 3px solid rgba(15, 95, 168, 0.4);
  font-size: 1.02rem;
  line-height: 1.7;
}

.observation-driver-label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin: 8px 0 10px;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(15, 95, 168, 0.1);
  color: var(--accent-deep);
  font-weight: 700;
  letter-spacing: 0.1em;
}

.driver-list,
.plan-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.driver-pill,
.plan-pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 11px;
  border-radius: 999px;
  font-size: 0.88rem;
  line-height: 1.3;
}

.driver-pill {
  background: rgba(15, 95, 168, 0.1);
  color: var(--accent-deep);
}

.plan-pill {
  background: rgba(43, 99, 140, 0.12);
  color: var(--sage);
}

.situation-copy {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.75;
}

.step-list {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 10px;
  line-height: 1.55;
}

.hidden {
  display: none !important;
}

.modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(24, 44, 68, 0.34);
  backdrop-filter: blur(10px);
  z-index: 40;
}

.modal-card {
  width: min(760px, 100%);
  padding: 24px;
  background: rgba(252, 254, 255, 0.98);
  border-radius: var(--radius-xl);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: start;
}

.modal-header h2 {
  margin: 8px 0 10px;
  font-size: 2rem;
}

.modal-grid {
  margin: 18px 0;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.icon-button {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  background: rgba(244, 249, 255, 0.96);
  color: var(--ink-strong);
  font-size: 1.6rem;
}

@media (max-width: 1180px) {
  .workspace,
  .masthead,
  .kb-summary,
  .alert-grid,
  .outcome-explorer-grid,
  .studio-selector-grid,
  .studio-context-grid,
  .studio-comparison-grid {
    grid-template-columns: 1fr;
  }

  .studio-lever-matrix-header,
  .studio-lever-row {
    grid-template-columns: 1fr;
  }

  .library-column {
    position: static;
  }
}

@media (max-width: 860px) {
  .page-shell {
    padding: 24px 16px 60px;
  }

  .status-ribbon,
  .summary-metrics,
  .modal-grid,
  .outcome-explorer-metrics {
    grid-template-columns: 1fr;
  }

  .auth-gate,
  .alert-header,
  .section-header,
  .outcome-explorer-header,
  .outcome-lever-card-header,
  .lever-panel-header {
    flex-direction: column;
  }

  .lever-guidance {
    text-align: left;
    max-width: none;
  }

  .outcome-lever-choice-card {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .auth-console-bar,
  .auth-console-chips {
    display: grid;
    grid-template-columns: 1fr;
  }
}