:root {
  color-scheme: light dark;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: Canvas;
  color: CanvasText;
}

.hidden {
  display: none !important;
}

.login-gate {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.login-card {
  width: min(22rem, 100%);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, CanvasText 16%, transparent);
  background: color-mix(in srgb, CanvasText 5%, Canvas);
}

.login-card h1 {
  margin: 0;
  font-size: 1.25rem;
}

.login-card > p {
  margin: 0;
  color: color-mix(in srgb, CanvasText 70%, transparent);
  font-size: 0.92rem;
}

.login-card label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.78rem;
  color: color-mix(in srgb, CanvasText 70%, transparent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.login-card input {
  font: inherit;
  border-radius: 8px;
  border: 1px solid color-mix(in srgb, CanvasText 16%, transparent);
  background: Canvas;
  color: CanvasText;
  padding: 0.55rem 0.75rem;
  text-transform: none;
  letter-spacing: normal;
}

.login-card button {
  width: 100%;
  margin-top: 0.25rem;
}

.login-error {
  margin: 0;
  color: #c0392b;
  font-size: 0.85rem;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 1.5rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid color-mix(in srgb, CanvasText 15%, transparent);
  position: sticky;
  top: 0;
  background: Canvas;
  z-index: 10;
}

.topbar h1 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
}

.controls {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: flex-start;
  flex: 1;
}

.controls-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  align-items: flex-end;
}

.controls-row-secondary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem 1.75rem;
  width: 100%;
  max-width: 100%;
}

.control-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.control-group-checkboxes {
  gap: 0.5rem 1.35rem;
  padding: 0.45rem 1rem;
  border-radius: 8px;
  border: 1px solid color-mix(in srgb, CanvasText 16%, transparent);
  background: color-mix(in srgb, CanvasText 5%, Canvas);
}

.control-group-tags {
  gap: 0.65rem;
}

.control {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.85rem;
}

.control select {
  min-width: 16rem;
  padding: 0.4rem 0.5rem;
  font-size: 0.9rem;
  border-radius: 6px;
  border: 1px solid color-mix(in srgb, CanvasText 25%, transparent);
  background: Canvas;
  color: CanvasText;
}

.control select option.checked-sensor {
  color: color-mix(in srgb, CanvasText 45%, transparent);
  font-style: italic;
}

.control select option.sensor-separator {
  color: color-mix(in srgb, CanvasText 50%, transparent);
  font-weight: 600;
  text-align: center;
}

.control select.current-checked {
  color: color-mix(in srgb, CanvasText 45%, transparent);
  font-style: italic;
}

.control.discard {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.control.discard input:checked + span {
  color: #b91c1c;
  font-weight: 600;
}

.control.sensor-checked {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.control.sensor-checked input:checked + span {
  color: #16a34a;
  font-weight: 600;
}

.control.request-reprocessing {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.control.request-reprocessing input:checked + span {
  color: #7c3aed;
  font-weight: 600;
}

.control.water-requirement-calibrated {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.control.water-requirement-calibrated input:checked + span {
  color: #0284c7;
  font-weight: 600;
}

.control.disable-transient-correction {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.control.disable-transient-correction input:checked + span {
  color: #d97706;
  font-weight: 600;
}

.status {
  font-size: 0.85rem;
  color: color-mix(in srgb, CanvasText 70%, transparent);
  min-height: 1em;
}

.status.error {
  color: #c0392b;
}

.status.status-loading {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.status-spinner {
  display: inline-block;
  flex-shrink: 0;
  width: 0.9em;
  height: 0.9em;
  border: 2px solid color-mix(in srgb, CanvasText 28%, transparent);
  border-top-color: color-mix(in srgb, CanvasText 85%, transparent);
  border-radius: 50%;
  animation: status-spin 0.65s linear infinite;
}

@keyframes status-spin {
  to {
    transform: rotate(360deg);
  }
}

.data-mtime {
  font-size: 0.8rem;
  color: color-mix(in srgb, CanvasText 60%, transparent);
  white-space: nowrap;
}

button {
  font: inherit;
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  border: 1px solid color-mix(in srgb, CanvasText 25%, transparent);
  background: Canvas;
  color: CanvasText;
  cursor: pointer;
  transition: background-color 80ms ease, border-color 80ms ease;
}

button:hover:not(:disabled) {
  background: color-mix(in srgb, CanvasText 8%, Canvas);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

button.primary {
  border-color: #2563eb;
  background: #2563eb;
  color: white;
}

button.primary:hover:not(:disabled) {
  background: #1d4ed8;
}

button.danger {
  border-color: #b91c1c;
  color: #b91c1c;
  background: transparent;
}

button.danger:hover:not(:disabled) {
  background: color-mix(in srgb, #b91c1c 12%, Canvas);
}

#tag-mode-toggle.tag-mode-on {
  border-color: #f59e0b;
  background: #f59e0b;
  color: #1a1a1a;
}

#jump-mode-toggle.tag-mode-on {
  border-color: #3b82f6;
  background: #3b82f6;
  color: #ffffff;
}

main {
  padding: 1rem 1.5rem 2rem;
}

#plot {
  width: 100%;
  min-height: 360px;
  height: auto;
  overflow: visible;
}

#annotations-panel {
  margin-top: 2rem;
  border-top: 1px solid color-mix(in srgb, CanvasText 15%, transparent);
  padding-top: 1rem;
}

#annotations-panel h2 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 600;
}

#annotations-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

#annotations-table th,
#annotations-table td {
  padding: 0.4rem 0.6rem;
  text-align: left;
  border-bottom: 1px solid color-mix(in srgb, CanvasText 10%, transparent);
  vertical-align: top;
}

#annotations-table th {
  font-weight: 600;
  background: color-mix(in srgb, CanvasText 5%, Canvas);
  position: sticky;
  top: 0;
}

#annotations-table tr:hover td {
  background: color-mix(in srgb, CanvasText 4%, Canvas);
}

#annotations-table .actions {
  display: flex;
  gap: 0.4rem;
  white-space: nowrap;
}

#annotations-table button {
  padding: 0.25rem 0.55rem;
  font-size: 0.8rem;
}

.annotations-empty {
  font-size: 0.85rem;
  color: color-mix(in srgb, CanvasText 60%, transparent);
  margin: 0.4rem 0 0;
}

.tag-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.1rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #1a1a1a;
}

dialog#annotation-dialog {
  border: 1px solid color-mix(in srgb, CanvasText 25%, transparent);
  border-radius: 8px;
  padding: 0;
  background: Canvas;
  color: CanvasText;
  width: min(90vw, 32rem);
  max-width: min(90vw, 32rem);
  overflow-x: hidden;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.25);
}

dialog#annotation-dialog::backdrop {
  background: rgba(0, 0, 0, 0.4);
}

dialog#annotation-dialog form {
  display: flex;
  flex-direction: column;
  gap: 0;
  min-width: 0;
  max-width: 100%;
}

.dialog-header {
  padding: 1rem 1.25rem 0.5rem;
}

.dialog-header h2 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
}

.dialog-grid {
  display: grid;
  /* minmax(0,1fr): grid items default to min-width:auto, which honors
     datetime-local's large intrinsic width and causes horizontal overflow */
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0.75rem 1rem;
  padding: 0.75rem 1.25rem;
  min-width: 0;
}

.dialog-grid label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.85rem;
  min-width: 0;
}

.dialog-grid label.full-width,
.dialog-grid fieldset.apply-to {
  grid-column: 1 / -1;
}

.dialog-grid input[type="text"],
.dialog-grid input[type="datetime-local"],
.dialog-grid select,
.dialog-grid textarea {
  font: inherit;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  padding: 0.4rem 0.5rem;
  border-radius: 6px;
  border: 1px solid color-mix(in srgb, CanvasText 25%, transparent);
  background: Canvas;
  color: CanvasText;
}

.dialog-grid textarea {
  resize: vertical;
}

fieldset.apply-to {
  border: 1px solid color-mix(in srgb, CanvasText 15%, transparent);
  border-radius: 6px;
  padding: 0.4rem 0.7rem 0.55rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  min-width: 0;
  max-width: 100%;
}

fieldset.apply-to legend {
  padding: 0 0.3rem;
  font-size: 0.75rem;
  color: color-mix(in srgb, CanvasText 65%, transparent);
}

fieldset.apply-to label {
  flex-direction: row;
  align-items: center;
  gap: 0.35rem;
}

.annotation-scope-fields {
  flex-basis: 100%;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  padding: 0.45rem 0.5rem;
  margin-top: 0.25rem;
  border-radius: 6px;
  border: 1px solid color-mix(in srgb, CanvasText 14%, transparent);
  background: color-mix(in srgb, CanvasText 4%, Canvas);
  box-sizing: border-box;
}

.annotation-scope-field-row {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  cursor: pointer;
}

.annotation-scope-field-row.annotation-scope-field-muted {
  opacity: 0.45;
  cursor: not-allowed;
}

.annotation-scope-field-row.annotation-scope-field-muted input {
  cursor: not-allowed;
}

.dialog-error {
  margin: 0 1.25rem;
  color: #b91c1c;
  font-size: 0.85rem;
  min-height: 1em;
}

.dialog-footer {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem 1rem;
  border-top: 1px solid color-mix(in srgb, CanvasText 12%, transparent);
}

.dialog-footer .spacer {
  flex: 1;
}