/* ==========================================================================
   Page: Cairn Agents (site/agents.html)
   ========================================================================== */

/* 01 Hero ----------------------------------------------------------------- */
.agents-hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr));
  align-items: end;
  gap: 32px 64px;
}

.agents-hero__title {
  margin-top: 24px;
  font: 400 clamp(48px, 6.6vw, 96px)/1.02 var(--font-serif);
  letter-spacing: var(--tracking-display);
  text-wrap: balance;
}

.agents-hero__side {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.agents-hero__lead {
  font: 400 20px/1.55 var(--font-sans);
  color: var(--ink-2);
}

/* 02 Workflow canvas -------------------------------------------------------- */
.workflow {
  margin-top: clamp(64px, 8vw, 112px);
}

/* Wide screens: tall scroll track with a sticky canvas */
@media (min-width: 1100px) {
  .workflow {
    height: 280vh;
  }

  .workflow__sticky {
    position: sticky;
    top: 88px;
  }
}

.workflow__heading {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.workflow__kicker {
  font: 500 12px/1 var(--font-mono);
  color: var(--machine-ink);
}

.workflow__title {
  font: 400 clamp(30px, 3.6vw, 48px)/1.1 var(--font-serif);
  letter-spacing: var(--tracking-heading);
}

.workflow__controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.workflow__prev {
  width: 44px;
  height: 44px;
  padding: 0;
  font-size: 18px;
}

.workflow__next {
  height: 44px;
}

.workflow__counter {
  min-width: 48px;
  font: 500 13px/1 var(--font-mono);
  text-align: center;
}

.workflow__body {
  max-width: 640px;
  margin-top: 12px;
  font: 400 17px/1.55 var(--font-sans);
  color: var(--ink-2);
}

/* Dotted canvas holding the five nodes */
.workflow__canvas {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: stretch;
  margin: 28px 0 0;
  padding: clamp(20px, 3vw, 40px);
  list-style: none;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  background-color: var(--surface);
  background-image: radial-gradient(#E3DFD6 1px, transparent 1px);
  background-size: 20px 20px;
}

@media (min-width: 1100px) {
  .workflow__canvas {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

/* Node = card + arrow to the next node.
   States (set by agents.js): .is-reached (step passed or current), .is-active */
.workflow-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  opacity: .25;
}

.workflow-node.is-reached {
  opacity: 1;
}

.workflow-node__card {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-control);
  background: var(--surface);
}

.workflow-node.is-reached .workflow-node__card {
  background: var(--machine-tint);
}

.workflow-node.is-active .workflow-node__card {
  border: 1.5px solid var(--machine-ink);
  box-shadow: 0 10px 28px -14px rgba(18, 18, 18, .35);
}

/* Human step: ink border, never tinted */
.workflow-node--human .workflow-node__card,
.workflow-node--human.is-reached .workflow-node__card {
  border: 1px solid var(--hairline-strong);
  background: var(--surface);
}

.workflow-node--human.is-active .workflow-node__card {
  border-width: 1.5px;
}

.workflow-node--result.is-reached .workflow-node__card {
  background: var(--surface);
}

.workflow-node__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.workflow-node__kind {
  font: 500 10px/1 var(--font-mono);
  letter-spacing: .06em;
  color: var(--machine-ink);
}

.workflow-node--human .workflow-node__kind {
  color: var(--ink);
}

.workflow-node__status {
  font: 500 11px/1 var(--font-mono);
  color: var(--ink);
}

.workflow-node__status[data-tone="success"] { color: var(--success); }
.workflow-node__status[data-tone="warning"] { color: var(--warning); }
.workflow-node__status[data-tone="error"]   { color: var(--error); }

.workflow-node__title {
  font: 600 15px/1.3 var(--font-sans);
}

.workflow-node__detail {
  font: 400 12px/1.45 var(--font-mono);
  color: var(--ink-2);
}

.workflow-node__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.workflow-node__approve,
.workflow-node__reject {
  height: 32px;
  padding: 0 10px;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--ink);
  font: 500 13px/1 var(--font-sans);
}

.workflow-node__approve {
  background: var(--action);
  font-weight: 600;
}

/* Arrow: ↓ stacked, → in a row; ink once the step has passed */
.workflow-node__edge {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 28px;
  font: 400 14px/1 var(--font-mono);
  color: #C9C4B8;
}

.workflow-node__edge::before {
  content: "↓";
}

.workflow-node.is-reached:not(.is-active) .workflow-node__edge {
  color: var(--ink);
}

@media (min-width: 1100px) {
  .workflow-node {
    flex-direction: row;
  }

  .workflow-node__edge {
    width: 28px;
    height: auto;
  }

  .workflow-node__edge::before {
    content: "→";
  }
}

/* Hint below the canvas: depends on screen width and the paused state */
.workflow__hint {
  margin-top: 12px;
  font: 400 12px/1.4 var(--font-mono);
  color: var(--ink-2);
}

.workflow__hint--scroll,
.workflow__hint--paused {
  display: none;
}

@media (min-width: 1100px) {
  .workflow__hint--buttons {
    display: none;
  }

  .workflow:not(.is-paused) .workflow__hint--scroll,
  .workflow.is-paused .workflow__hint--paused {
    display: inline;
  }
}

/* 03 Run log ---------------------------------------------------------------- */
.run-log {
  margin-top: 28px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  background: var(--surface);
}

.run-log__table {
  min-width: 820px;
  font-size: 14px;
  line-height: 1.35;
}

.run-log__table th {
  font-weight: 500;
}

.run-log__table td {
  border-bottom-color: var(--surface-sunken);
  vertical-align: baseline;
}

.run-log__mono {
  font: 400 13px/1 var(--font-mono);
}

.run-log__tools {
  font: 400 12px/1.3 var(--font-mono);
  color: var(--ink-2);
}

.run-status {
  padding: 4px 8px;
  border-radius: var(--radius-pill);
  font: 600 12px/1 var(--font-sans);
  white-space: nowrap;
}

.run-status--paid     { background: var(--success-tint); color: var(--success); }
.run-status--rejected { background: var(--error-tint);   color: var(--error); }
.run-status--review   { background: var(--warning-tint); color: var(--warning); }
.run-status--failed   { background: var(--surface-sunken); color: var(--ink-2); }

.run-log__note {
  margin-top: 10px;
  font: 400 12px/1.4 var(--font-mono);
  color: var(--ink-2);
}

/* 04 Guardrails & evals ----------------------------------------------------- */
.guardrails {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr));
  gap: 48px 64px;
}

.guardrails__col {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.guard-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--hairline-strong);
}

.guard-list__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--hairline);
}

.guard-list__title {
  font: 600 16px/1.3 var(--font-sans);
}

.guard-list__rule {
  font: 400 12px/1.5 var(--font-mono);
  color: var(--ink-2);
}

.guard-list__desc {
  grid-column: 1 / 3;
  font: 400 14px/1.5 var(--font-sans);
  color: var(--ink-2);
}

.guardrails__text {
  font: 400 15px/1.55 var(--font-sans);
  color: var(--ink-2);
}

.eval-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  background: var(--surface);
}

.eval {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.eval__head {
  display: flex;
  justify-content: space-between;
  font: 400 14px/1.2 var(--font-sans);
}

.eval__value {
  font: 500 13px/1 var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* Track + score bar (::before) + confidence interval bracket (::after) */
.eval__bar {
  position: relative;
  height: 8px;
  border-radius: 4px;
  background: var(--surface-sunken);
}

.eval__bar::before {
  content: "";
  display: block;
  width: var(--value);
  height: 8px;
  border-radius: 4px;
  background: var(--ink);
}

.eval__bar::after {
  content: "";
  position: absolute;
  top: -3px;
  left: var(--ci-left);
  width: var(--ci-width);
  height: 14px;
  border-left: 1.5px solid var(--machine-ink);
  border-right: 1.5px solid var(--machine-ink);
}

.eval-card__note {
  font: 400 12px/1.4 var(--font-mono);
  color: var(--ink-2);
}

/* 05 ROI calculator --------------------------------------------------------- */
.roi {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 400px), 1fr));
  overflow: hidden;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius-card);
  background: var(--surface);
}

.roi__inputs,
.roi__result {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: clamp(24px, 4vw, 40px);
}

.roi__result {
  border-left: 1px solid var(--hairline);
  background: var(--canvas);
}

.roi__title {
  font: 500 12px/1 var(--font-mono);
  letter-spacing: var(--tracking-label);
}

.roi-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.roi-field__label {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font: 500 15px/1.3 var(--font-sans);
}

.roi-field__value {
  font: 500 15px/1 var(--font-mono);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.roi-field__range {
  box-sizing: content-box;
  accent-color: var(--ink);
}

.roi__total {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.roi__total-label {
  font: 400 14px/1 var(--font-sans);
  color: var(--ink-2);
}

.roi__total-value {
  font: 300 clamp(56px, 7vw, 88px)/1 var(--font-serif);
  letter-spacing: var(--tracking-display);
  font-variant-numeric: tabular-nums;
}

.roi__figures {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--hairline-strong);
}

.roi__figure {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 12px 0 0;
}

.roi__figure + .roi__figure {
  padding: 14px 0 0 12px;
  border-left: 1px solid var(--hairline);
}

.roi__figure-label {
  font: 400 13px/1 var(--font-sans);
  color: var(--ink-2);
}

.roi__figure-value {
  font: 400 28px/1 var(--font-serif);
  font-variant-numeric: tabular-nums;
}

.roi__note {
  font: 400 12px/1.5 var(--font-mono);
  color: var(--ink-2);
}

/* Long label may wrap on narrow screens */
.roi__cta {
  align-self: flex-start;
  justify-content: flex-start;
  white-space: normal;
}