/* Agent Board — dark-first theme, plain CSS custom properties, no framework. */

:root {
  --bg: #12151b;
  --bg-alt: #171b23;
  --surface: #1c212b;
  --card: #222836;
  --line: #2c3342;
  --text: #e6eaf2;
  --muted: #8e9aae;
  --accent-strong: #4c8dff;
  --warn: #fcc419;
  --alert: #ff6b6b;
  --ok: #51cf66;
  /* 208 + 6 * 174 = 1252px — six columns plus a scrollbar still fit on a 1280px screen. */
  --lane-width: 208px;
  --col-min: 174px;
  --radius: 8px;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

/* Every column owns a colour, so a glance at the board reads as progress. */
[data-state="TODO"] {
  --state-color: #94a3b8;
}
[data-state="PLAN"] {
  --state-color: #9775fa;
}
[data-state="DOING"] {
  --state-color: #4c8dff;
}
[data-state="REVIEW"] {
  --state-color: #fcc419;
}
[data-state="PR"] {
  --state-color: #22b8cf;
}
[data-state="DONE"] {
  --state-color: #51cf66;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f3f5f9;
    --bg-alt: #ffffff;
    --surface: #ffffff;
    --card: #ffffff;
    --line: #dbe1ea;
    --text: #1b2130;
    --muted: #64748b;
  }
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
}

/* ------------------------------------------------------------------ toolbar */

.toolbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--line);
  flex: none;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo {
  flex: none;
  border-radius: 7px;
  box-shadow: 0 2px 10px color-mix(in srgb, var(--accent-strong) 45%, transparent);
}

.toolbar h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.01em;
  white-space: nowrap;
  background: linear-gradient(90deg, var(--accent-strong), #9775fa);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.toolbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  flex-wrap: wrap;
}

.spacer {
  flex: 1;
}

button,
select,
input[type="text"],
input[type="search"],
textarea {
  font: inherit;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 7px 12px;
}

button {
  cursor: pointer;
  font-weight: 600;
}

button:hover {
  border-color: var(--accent-strong);
}

button.primary {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
  color: #fff;
  box-shadow: 0 2px 10px color-mix(in srgb, var(--accent-strong) 45%, transparent);
}

.icon-button {
  font-size: 15px;
  padding: 3px 7px;
  background: transparent;
  border-color: transparent;
  color: var(--muted);
  line-height: 1;
}

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

.icon-button.danger:hover {
  color: var(--alert);
  border-color: var(--alert);
}

.danger-button {
  border-color: var(--alert);
  color: var(--alert);
  background: transparent;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  white-space: nowrap;
}

#search {
  min-width: 200px;
}

.status {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  max-width: 320px;
}

.status.ok {
  color: var(--ok);
}

.status.warn {
  color: var(--warn);
}

.status.error {
  color: var(--alert);
}

/* -------------------------------------------------------------------- board */

#board-wrap {
  flex: 1;
  overflow: auto;
}

.board {
  display: grid;
  /* Columns share the viewport and only start scrolling below --col-min each. */
  grid-template-columns: var(--lane-width) repeat(var(--cols, 6), minmax(var(--col-min), 1fr));
  align-items: stretch;
  width: max(100%, calc(var(--lane-width) + var(--cols, 6) * var(--col-min)));
}

/* Lanes only group markup — their children live directly in the board grid. */
.lane {
  display: contents;
}

.corner,
.col-head {
  position: sticky;
  top: 0;
  z-index: 3;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--line);
  padding: 12px 12px 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
}

.corner {
  left: 0;
  z-index: 5;
}

.col-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border-left: 1px solid var(--line);
  border-bottom: 3px solid var(--state-color);
  color: var(--state-color);
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--state-color) 14%, var(--bg-alt)),
    var(--bg-alt)
  );
}

.col-count {
  color: #0d1117;
  background: var(--state-color);
  border-radius: 11px;
  padding: 1px 9px;
  font-size: 12px;
}

.empty-board {
  grid-column: 1 / -1;
  padding: 48px 48px 12px;
  text-align: center;
  color: var(--muted);
}

/* Sits under the last lane, so adding a project happens where the lanes are. */
.add-lane {
  grid-column: 1 / -1;
  padding: 10px;
}

.add-lane-button {
  width: 100%;
  padding: 10px;
  font-size: 15px;
  background: transparent;
  border: 1px dashed var(--line);
  color: var(--muted);
}

.add-lane-button:hover {
  border-style: solid;
  border-color: var(--accent-strong);
  color: var(--accent-strong);
  background: color-mix(in srgb, var(--accent-strong) 10%, transparent);
}

/* --------------------------------------------------------------------- lane */

.lane-head {
  position: sticky;
  left: 0;
  z-index: 2;
  display: flex;
  align-items: flex-start;
  gap: 6px;
  padding: 14px 10px;
  background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 22%, var(--bg-alt)), var(--bg-alt));
  border-bottom: 1px solid var(--line);
  border-left: 6px solid var(--accent);
  cursor: grab;
}

.lane-head.dragging {
  opacity: 0.4;
}

.lane-head.lane-drop-before {
  box-shadow: inset 0 3px 0 0 var(--accent-strong);
}

.lane-head.lane-drop-after {
  box-shadow: inset 0 -3px 0 0 var(--accent-strong);
}

.lane-title-wrap {
  flex: 1;
  min-width: 0;
}

.lane-title {
  font-size: 17px;
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lane-count {
  font-size: 12px;
  color: var(--muted);
}

/* Floated over the header so the project name keeps the full lane width. */
.lane-actions {
  position: absolute;
  right: 6px;
  bottom: 6px;
  display: flex;
  gap: 2px;
  padding: 2px;
  border-radius: 6px;
  background: var(--bg-alt);
  box-shadow: 0 1px 6px rgb(0 0 0 / 25%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.12s;
}

.lane-head:hover .lane-actions,
.lane-actions:focus-within {
  pointer-events: auto;
}

.lane-head:hover .lane-actions,
.lane-actions:focus-within {
  opacity: 1;
}

.lane-collapsed {
  grid-column: 2 / -1;
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
  background: var(--bg);
  color: var(--muted);
  font-size: 13px;
}

.collapsed-count {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.collapsed-label {
  letter-spacing: 0.06em;
  font-weight: 600;
}

.collapsed-number {
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0 8px;
}

/* --------------------------------------------------------------------- cell */

.cell {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 9px;
  min-height: 108px;
  border-left: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--state-color) 5%, transparent);
}

.cell.drop-target {
  background: color-mix(in srgb, var(--state-color) 18%, transparent);
  box-shadow: inset 0 0 0 2px var(--state-color);
}

.add-card {
  align-self: stretch;
  padding: 3px;
  font-size: 16px;
  background: transparent;
  border: 1px dashed var(--line);
  color: var(--muted);
  opacity: 0.35;
  transition: opacity 0.12s;
}

.cell:hover .add-card,
.add-card:focus-visible {
  opacity: 1;
}

.add-input {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--accent-strong);
  border-radius: 6px;
  padding: 6px 8px;
}

.drop-indicator {
  height: 3px;
  border-radius: 2px;
  background: var(--accent-strong);
}

/* --------------------------------------------------------------------- card */

.card {
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--line));
  border-left: 6px solid var(--accent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--accent) 16%, var(--card));
  padding: 10px 12px;
  cursor: grab;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: 0 1px 3px rgb(0 0 0 / 22%);
}

.card:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 12px color-mix(in srgb, var(--accent) 40%, transparent);
}

.card:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 1px;
}

.card.dragging {
  opacity: 0.4;
}

.card.stale-warn {
  box-shadow: inset 0 0 0 2px var(--warn);
}

.card.stale-alert {
  box-shadow: inset 0 0 0 2px var(--alert);
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.card-notes {
  font-size: 13px;
  line-height: 1.4;
  color: var(--muted);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  padding-top: 7px;
  border-top: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line));
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.chip {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 11px;
  padding: 0 9px;
  line-height: 21px;
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chip-agent {
  color: var(--accent-strong);
  border-color: color-mix(in srgb, var(--accent-strong) 55%, transparent);
  background: color-mix(in srgb, var(--accent-strong) 16%, var(--surface));
}

.chip-link {
  text-decoration: none;
  color: var(--accent-strong);
}

.card.stale-warn .chip-age {
  color: var(--warn);
}

.card.stale-alert .chip-age {
  color: var(--alert);
}

/* ------------------------------------------------------------------- drawer */

.drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(440px, 100vw);
  display: flex;
  flex-direction: column;
  background: var(--bg-alt);
  border-left: 1px solid var(--line);
  box-shadow: -8px 0 24px rgb(0 0 0 / 30%);
  z-index: 10;
}

.drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
}

.drawer-head h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.drawer-body {
  flex: 1;
  overflow: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
  border: 0;
  padding: 0;
  margin: 0;
}

.field-row {
  display: flex;
  gap: 10px;
}

.field-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.inline-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
}

.inline-toggle input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent-strong);
}

.inline-toggle:hover {
  color: var(--text);
}

.field-row .field {
  flex: 1;
}

.field-label {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
}

fieldset.field {
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 12px;
}

fieldset.field legend {
  padding: 0 4px;
}

.drawer textarea {
  resize: vertical;
}

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

.swatch {
  width: 28px;
  height: 28px;
  padding: 0;
  border-radius: 50%;
  border: 2px solid transparent;
  background: var(--swatch);
  box-shadow: 0 1px 4px color-mix(in srgb, var(--swatch) 55%, transparent);
}

.swatch.selected {
  border-color: var(--text);
  transform: scale(1.12);
}

.history {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 190px;
  overflow: auto;
}

.history li {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 13px;
  padding: 6px 9px;
  background: var(--surface);
  border-left: 3px solid var(--accent-strong);
  border-radius: 6px;
}

.history-move {
  font-weight: 600;
}

.history-time {
  color: var(--muted);
  white-space: nowrap;
}

.muted {
  color: var(--muted);
  font-size: 13px;
  margin: 0;
}

/* ------------------------------------------------------------------- dialog */

dialog {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-alt);
  color: var(--text);
  padding: 18px;
  min-width: 320px;
}

dialog::backdrop {
  background: rgb(0 0 0 / 55%);
}

dialog h2 {
  margin: 0 0 14px;
  font-size: 18px;
}

dialog form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

#settings-open.has-hidden {
  border-color: var(--warn);
  color: var(--warn);
}

.toggle-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 320px;
}

.state-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-left: 5px solid var(--state-color);
  border-radius: 6px;
  background: color-mix(in srgb, var(--state-color) 10%, transparent);
  font-weight: 600;
  cursor: pointer;
}

.state-toggle.off {
  border-left-color: var(--line);
  background: transparent;
  color: var(--muted);
}

.state-toggle input {
  accent-color: var(--state-color);
  width: 16px;
  height: 16px;
}

.state-toggle input:disabled {
  cursor: not-allowed;
}

.state-toggle-label {
  flex: 1;
}

.state-toggle-count {
  font-size: 13px;
  font-weight: 400;
  color: var(--muted);
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin: 0;
  padding: 0;
}