/* Kairen public website — synthetic walkthrough surface (/covenant/start)
   Every value shown here is synthetic fixture mechanics, labelled as such.
   Source: 03_Product/Kairen_Covenant_Product_Docs/10_Product/12_Operational_Demo.md */

.k-modes {
  display: grid;
  gap: var(--grid-gap);
}

@media (min-width: 860px) {
  .k-modes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.k-mode {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: clamp(24px, 3vw, 34px);
  border: 1px solid var(--line-decorative);
  border-radius: var(--radius-md);
  background: var(--surface-raised);
}

.k-mode--open {
  border-color: var(--signal-line);
}

.k-mode__head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.k-mode p {
  color: var(--text-secondary);
  font-size: var(--step--1);
  line-height: 1.62;
  margin: 0;
}

.k-mode .k-actions {
  margin-top: auto;
  padding-top: 8px;
}

/* ---------- stepper ---------- */

.k-walk {
  border: 1px solid var(--line-decorative);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--surface-raised);
}

/* Tabs and stepper controls only exist once JS has taken over.
   Without JS the panels simply stack and stay readable. */
.k-walk__tabs,
.k-walk__foot {
  display: none;
}

.k-walk[data-enhanced="true"] .k-walk__foot {
  display: flex;
}

.k-walk[data-enhanced="true"] .k-walk__tabs {
  display: flex;
}

.k-walk:not([data-enhanced="true"]) .k-walk__panel + .k-walk__panel {
  border-top: 1px solid var(--line-decorative);
}

.k-walk__tabs {
  overflow-x: auto;
  border-bottom: 1px solid var(--line-decorative);
  background: var(--surface-sunken);
  scrollbar-width: thin;
}

.k-walk__tab {
  flex: 1 0 auto;
  min-width: 150px;
  background: none;
  border: 0;
  border-inline-end: 1px solid var(--line-decorative);
  padding: 16px 18px;
  text-align: start;
  cursor: pointer;
  font-family: inherit;
  color: var(--text-tertiary);
  transition: color var(--dur-fast) var(--ease-out),
    background var(--dur-fast) var(--ease-out);
}

.k-walk__tab:hover {
  color: var(--text-primary);
}

.k-walk__tab[aria-selected="true"] {
  color: var(--text-primary);
  background: var(--surface-raised);
  box-shadow: inset 0 -2px 0 var(--signal);
}

.k-walk__tab b {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  font-weight: 400;
  margin-bottom: 7px;
  color: var(--text-tertiary);
}

.k-walk__tab[aria-selected="true"] b {
  color: var(--text-signal);
}

.k-walk__tab span {
  font-size: var(--step--1);
  font-weight: 540;
  letter-spacing: -0.015em;
}

.k-walk__panel {
  padding: clamp(22px, 3vw, 34px);
}

.k-walk__panel[hidden] {
  display: none;
}

.k-walk__panel > h3 {
  margin-bottom: 12px;
}

.k-walk__panel > p {
  color: var(--text-secondary);
  font-size: var(--step--1);
  max-width: 68ch;
  margin-bottom: 24px;
  line-height: 1.62;
}

.k-walk__foot {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 14px clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--line-decorative);
  background: var(--surface-sunken);
  font-size: 12px;
  color: var(--text-tertiary);
}

.k-walk__foot .k-btn {
  min-height: 38px;
  padding: 0 16px;
  margin-inline-start: auto;
}

/* ---------- fixture table ---------- */

.k-fix {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  min-width: 640px;
}

.k-fix th,
.k-fix td {
  text-align: start;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line-decorative);
  vertical-align: top;
  line-height: 1.5;
}

.k-fix thead th {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  font-weight: 400;
  white-space: nowrap;
}

.k-fix td:first-child {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-tertiary);
  white-space: nowrap;
}

.k-fix tbody tr[data-excluded="true"] td {
  color: var(--text-tertiary);
}

.k-fix .k-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.k-tag {
  display: inline-block;
  padding: 3px 8px;
  border: 1px solid var(--line-structural);
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.k-tag--in {
  border-color: var(--signal-line);
  color: var(--text-signal);
}

.k-tag--out {
  color: var(--text-tertiary);
}

/* ---------- gate block ---------- */

.k-gate {
  margin-top: 24px;
  border: 1px dashed var(--line-structural);
  border-radius: var(--radius-sm);
  padding: 20px;
}

.k-gate__k {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: 10px;
}

.k-gate p {
  margin: 0;
  color: var(--text-secondary);
  font-size: var(--step--1);
  line-height: 1.62;
}

.k-kv {
  display: grid;
  gap: 0;
  margin: 0 0 24px;
}

.k-kv > div {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-decorative);
}

@media (min-width: 620px) {
  .k-kv > div {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

.k-kv dt {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

.k-kv dd {
  margin: 0;
  color: var(--text-secondary);
  font-size: var(--step--1);
}