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

.session-body {
  min-height: 100vh;
}

.session-nav {
  position: sticky;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  mix-blend-mode: normal;
}

.nav-file {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mute);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 46vw;
}

.session {
  min-height: calc(100vh - 62px);
}

.gate {
  min-height: calc(100vh - 62px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8vh var(--pad);
}

.gate-kicker {
  margin: 0 0 18px;
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--mute);
}

.gate h1 {
  margin: 0;
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 500;
  letter-spacing: -0.03em;
}

.gate-lede {
  margin: 16px 0 0;
  color: var(--mute);
  font-size: 15px;
}

.gate-cta {
  cursor: pointer;
}

.gate-drop {
  margin-top: 28px;
  border: 1px solid var(--line);
  padding: 28px 48px;
  color: var(--mute);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  outline: none;
}

.gate-drop:hover,
.gate-drop:focus,
.gate-drop.is-over {
  border-color: var(--fg);
  color: var(--fg);
}

.gate-samples {
  margin: 36px 0 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mute);
}

.text-btn {
  appearance: none;
  background: none;
  border: 0;
  color: var(--fg);
  font: inherit;
  letter-spacing: 0.08em;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
  margin-left: 14px;
  padding: 0;
}

.meta-bar {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-end;
  padding: 22px var(--pad) 18px;
  border-bottom: 1px solid var(--line);
}

.meta-bar dl {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px 28px;
  margin: 0;
  flex: 1;
}

.meta-bar dt {
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mute);
}

.meta-bar dd {
  margin: 6px 0 0;
  font-size: 14px;
  letter-spacing: 0.02em;
}

.meta-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

.btn {
  appearance: none;
  background: transparent;
  color: var(--fg);
  border: 1px solid #3a3a3c;
  font-family: inherit;
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 8px 14px;
  cursor: pointer;
}

.btn:hover:not(:disabled) {
  border-color: var(--fg);
}

.btn:disabled {
  color: #555;
  border-color: var(--line);
  cursor: not-allowed;
}

.btn-fill {
  background: var(--fg);
  color: var(--bg);
  border-color: var(--fg);
}

.btn-fill:disabled {
  background: #2a2a2c;
  color: #555;
  border-color: #2a2a2c;
}

.is-ok {
  color: #9aaa90;
}

.is-warn {
  color: #c4a35a;
}

.is-idle {
  color: var(--mute);
}

.work {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 62vh;
}

.side {
  padding: 28px var(--pad) 40px;
  border-right: 1px solid var(--line);
}

.side h2 {
  margin: 28px 0 12px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mute);
}

.side h2:first-child {
  margin-top: 0;
}

.kv {
  margin: 0;
}

.kv div {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 8px;
  padding: 7px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}

.kv dt {
  color: var(--mute);
}

.kv dd {
  margin: 0;
  word-break: break-all;
}

.checks {
  list-style: none;
  margin: 0;
  padding: 0;
}

.checks li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}

.checks em {
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mute);
}

.checks li[data-ok="yes"] em {
  color: #9aaa90;
}

.checks li[data-ok="no"] em {
  color: #b45a4c;
}

.checks li[data-ok="warn"] em {
  color: #c4a35a;
}

.assist {
  font-size: 13px;
  line-height: 1.5;
  color: #c8c8c4;
}

.assist p {
  margin: 0 0 10px;
}

.assist .who {
  display: block;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
  margin-bottom: 3px;
}

.assist-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px;
  margin-top: 12px;
}

.assist-form input {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--fg);
  font-family: inherit;
  font-size: 13px;
  padding: 8px 10px;
}

.assist-form input:focus {
  outline: 1px solid var(--fg);
  border-color: var(--fg);
}

.canvas {
  min-width: 0;
}

.tabs {
  display: flex;
  border-bottom: 1px solid var(--line);
  padding: 0 8px;
}

.tab {
  appearance: none;
  background: none;
  border: 0;
  border-bottom: 1px solid transparent;
  margin-bottom: -1px;
  color: var(--mute);
  font-family: inherit;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 16px 14px;
  cursor: pointer;
}

.tab.is-on {
  color: var(--fg);
  border-bottom-color: var(--fg);
}

.panel {
  padding: 0;
}

.grid {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.grid th {
  text-align: left;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mute);
  padding: 14px 16px 10px;
  border-bottom: 1px solid var(--line);
}

.grid td {
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  font-variant-numeric: tabular-nums;
}

.grid tr.is-dirty td {
  background: #0c0c0a;
}

.cell-edit {
  width: 84px;
  background: #000;
  color: var(--fg);
  border: 1px solid var(--fg);
  font: inherit;
  font-variant-numeric: tabular-nums;
  padding: 2px 6px;
}

.hint {
  margin: 0;
  padding: 12px 16px;
  font-size: 12px;
  color: var(--mute);
}

.patches {
  list-style: none;
  margin: 0;
  padding: 0;
}

.patches li {
  border-bottom: 1px solid var(--line);
}

.patch {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 14px;
  padding: 18px 16px;
  cursor: pointer;
}

.patch strong {
  display: block;
  font-weight: 500;
}

.patch span {
  display: block;
  margin-top: 6px;
  color: var(--mute);
  font-size: 13px;
}

.patch code {
  display: block;
  margin-top: 6px;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 11px;
  color: #6a6a68;
}

.hex {
  margin: 0;
  padding: 18px 16px;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 11px;
  line-height: 1.55;
  color: #c4c4c0;
  overflow: auto;
  max-height: 64vh;
}

.hex mark {
  background: #242018;
  color: #c4a35a;
}

.history {
  list-style: none;
  margin: 0;
  padding: 0;
}

.history li {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 16px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}

.history time {
  color: var(--mute);
  font-variant-numeric: tabular-nums;
}

.output {
  padding: 28px 16px 48px;
  max-width: 40rem;
}

.output h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 500;
}

.output p {
  margin: 0 0 20px;
  color: var(--mute);
  line-height: 1.5;
}

.status {
  display: flex;
  gap: 22px;
  padding: 0 var(--pad);
  height: 36px;
  align-items: center;
  border-top: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mute);
}

@media (max-width: 960px) {
  .work {
    grid-template-columns: 1fr;
  }

  .side {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .meta-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .meta-bar dl {
    grid-template-columns: 1fr 1fr;
  }
}