/* Personal study dashboard
   Scoped styles only — does not modify style.css. */

.dash {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: var(--space-10) var(--space-6) var(--space-24);
}

@media (min-width: 720px) {
  .dash { padding-inline: var(--space-10); }
}

.dash__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  display: flex; align-items: center; gap: var(--space-3);
}
.dash__eyebrow::before {
  content: ''; width: 32px; height: 1px; background: var(--color-text-muted);
}

.dash__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-2xl);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-3);
  color: var(--color-text);
}

.dash__dek {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin: 0 0 var(--space-10);
  max-width: 56ch;
}

/* Next-step nudge */
.dash-nudge {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  border: 1px solid var(--color-accent-copper);
  background: color-mix(in oklab, var(--color-accent-copper) 8%, var(--color-surface));
  border-left-width: 4px;
  padding: var(--space-5) var(--space-6);
  border-radius: 4px;
  margin-bottom: var(--space-12);
}
.dash-nudge__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent-copper);
}
.dash-nudge__body {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.35;
}
.dash-nudge__body a {
  color: var(--color-accent-copper);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* KPI tiles */
.dash-kpis {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-12);
}
@media (min-width: 720px) {
  .dash-kpis { grid-template-columns: repeat(4, 1fr); }
}
.dash-kpi {
  background: var(--color-surface-2);
  border: 1px solid var(--color-divider);
  border-radius: 4px;
  padding: var(--space-5) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.dash-kpi__num {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-xl);
  color: var(--color-text);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.dash-kpi__num em {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.6em;
  font-weight: 400;
  color: var(--color-text-muted);
  margin-left: 0.2em;
}
.dash-kpi__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Section heading shared */
.dash-section { margin-bottom: var(--space-12); }
.dash-section__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}
.dash-section__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-lg);
  margin: 0;
  color: var(--color-text);
}
.dash-section__hint {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
}

/* Heatmap */
.dash-heatmap {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 6px;
}
@media (max-width: 640px) {
  .dash-heatmap { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}
@media (max-width: 420px) {
  .dash-heatmap { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
.dash-cell {
  position: relative;
  aspect-ratio: 1 / 1;
  background: var(--color-surface);
  border: 1px solid var(--color-divider);
  border-radius: 4px;
  padding: 8px 8px 6px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  color: var(--color-text);
  overflow: hidden;
  transition: transform 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
}
.dash-cell:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  border-color: var(--color-accent-copper);
  z-index: 2;
}
.dash-cell--stale { opacity: 0.85; }
.dash-cell__num {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-lg);
  line-height: 1;
  letter-spacing: -0.01em;
}
.dash-cell__title {
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.2;
  color: var(--color-text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.dash-cell__pip {
  position: absolute;
  top: 6px; right: 6px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}
/* Ladder level palette — copper ramp */
.dash-cell[data-level="0"] {
  background: var(--color-surface);
}
.dash-cell[data-level="1"] {
  background: color-mix(in oklab, var(--color-accent-copper) 12%, var(--color-surface));
  border-color: color-mix(in oklab, var(--color-accent-copper) 22%, var(--color-divider));
}
.dash-cell[data-level="2"] {
  background: color-mix(in oklab, var(--color-accent-copper) 28%, var(--color-surface));
  border-color: color-mix(in oklab, var(--color-accent-copper) 40%, var(--color-divider));
  color: var(--color-text);
}
.dash-cell[data-level="3"] {
  background: color-mix(in oklab, var(--color-accent-copper) 55%, var(--color-surface));
  border-color: color-mix(in oklab, var(--color-accent-copper) 70%, var(--color-divider));
  color: var(--color-text-inverse);
}
.dash-cell[data-level="3"] .dash-cell__title,
.dash-cell[data-level="3"] .dash-cell__pip {
  color: color-mix(in oklab, var(--color-text-inverse) 80%, transparent);
}
.dash-cell[data-level="4"] {
  background: var(--color-accent-copper);
  border-color: var(--color-accent-copper);
  color: var(--color-text-inverse);
}
.dash-cell[data-level="4"] .dash-cell__title,
.dash-cell[data-level="4"] .dash-cell__pip {
  color: color-mix(in oklab, var(--color-text-inverse) 80%, transparent);
}

/* Legend */
.dash-legend {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}
.dash-legend__swatch {
  display: inline-flex; align-items: center; gap: 6px;
}
.dash-legend__chip {
  width: 14px; height: 14px;
  border: 1px solid var(--color-divider);
  border-radius: 3px;
  display: inline-block;
}

/* Lists (drills, stuck) */
.dash-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--color-divider);
  border: 1px solid var(--color-divider);
  border-radius: 4px;
  overflow: hidden;
}
.dash-list__row {
  background: var(--color-surface-2);
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  text-decoration: none;
  color: var(--color-text);
  font-family: var(--font-body);
  transition: background 120ms ease;
}
.dash-list__row:hover { background: var(--color-surface-offset); }
.dash-list__main {
  display: flex; flex-direction: column; gap: 2px; min-width: 0;
}
.dash-list__chap {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  text-transform: uppercase;
}
.dash-list__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-base);
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.dash-list__snippet {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 60ch;
}
.dash-list__meta {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-accent-copper);
  white-space: nowrap;
  flex-shrink: 0;
}

.dash-empty {
  border: 1px dashed var(--color-divider);
  border-radius: 4px;
  padding: var(--space-6);
  font-family: var(--font-body);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  background: var(--color-surface);
}

/* Tooltip — pure CSS, uses title-like data attribute */
.dash-cell[data-tip]:hover::after {
  content: attr(data-tip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 6px);
  transform: translateX(-50%);
  background: var(--color-text);
  color: var(--color-text-inverse);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  padding: 4px 8px;
  border-radius: 3px;
  white-space: nowrap;
  pointer-events: none;
  z-index: 10;
}