/* ════════════════════════════════════════════════════════════
   population.css — population monitor button and panel
   ════════════════════════════════════════════════════════════ */

/* ── Trigger button (top-right, below settings) ─────────── */
.population-btn {
  position: fixed;
  top: 70px;
  right: 26px;
  z-index: 100;
  font-size: 1.15rem;
}

/* ── Panel ───────────────────────────────────────────────── */
.pop-panel {
  position: fixed;
  top: 116px;
  right: 1.5rem;
  z-index: 200;

  width: 288px;
  max-height: calc(100dvh - 140px);
  overflow-y: auto;
  padding: 1.1rem 1.2rem 1.2rem;

  background: var(--modal-surface);
  border: 1px solid var(--modal-border);
  border-radius: 14px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);

  opacity: 0;
  transform: translateY(-6px) scale(0.98);
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease;

  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.1) transparent;
}
.pop-panel::-webkit-scrollbar        { width: 4px; }
.pop-panel::-webkit-scrollbar-track  { background: transparent; }
.pop-panel::-webkit-scrollbar-thumb  { background: rgba(255,255,255,0.1); border-radius: 4px; }

.pop-panel--visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

/* ── Header ──────────────────────────────────────────────── */
.pop-panel__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 0 0 1rem;
}

.pop-panel__title {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 400;
  color: var(--text-lo);
  text-transform: lowercase;
  letter-spacing: 0.1em;
  margin: 0;
}

.pop-panel__meta {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
}

.pop-panel__total {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: rgba(255, 255, 255, 0.28);
  font-variant-numeric: tabular-nums;
}

.pop-panel__uptime {
  font-family: var(--font-mono);
  font-size: 0.56rem;
  color: rgba(255, 255, 255, 0.16);
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}

/* ── Sections ────────────────────────────────────────────── */
.pop-section + .pop-section {
  margin-top: 0.9rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--modal-divider);
}

.pop-section__label {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  color: rgba(255, 255, 255, 0.28);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin: 0 0 0.6rem;
}

/* ── Species section ─────────────────────────────────────── */
#popSpecies {
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* Species header row */
.pop-species-header {
  display: grid;
  grid-template-columns: 20px 1fr auto;
  align-items: center;
  gap: 0 0.5rem;
  padding: 0.18rem 0;
}

.pop-species-header__icon {
  width: 16px;
  height: 16px;
  color: var(--c, rgba(255,255,255,0.7));
  display: flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 0 3px color-mix(in srgb, var(--c, white) 55%, transparent));
  flex-shrink: 0;
}
.pop-species-header__icon svg { width: 100%; height: 100%; display: block; }

.pop-species-header__name {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.72);
}

.pop-species-header__count {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: rgba(255, 255, 255, 0.28);
  font-variant-numeric: tabular-nums;
  min-width: 16px;
  text-align: right;
}

/* ── Variant rows ────────────────────────────────────────── */
.pop-variants {
  padding-left: 24px;   /* indent under species icon */
  margin-bottom: 0.45rem;
  display: flex;
  flex-direction: column;
  gap: 0.22rem;
}

.pop-variant-row {
  display: flex;
  align-items: center;
  gap: 0.42rem;
}

/* Coloured circle representing the variant's DNA colour */
.pop-variant-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.pop-variant-genes {
  font-family: var(--font-mono);
  font-size: 0.57rem;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 0.02em;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pop-variant-count {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: rgba(255, 255, 255, 0.28);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  flex-shrink: 0;
}

/* Extinct variants — dimmed */
.pop-variant-row--extinct .pop-variant-dot {
  opacity: 0.28;
  box-shadow: none !important;
}

.pop-variant-row--extinct .pop-variant-genes {
  color: rgba(255, 255, 255, 0.22);
  text-decoration: line-through;
  text-decoration-color: rgba(255, 255, 255, 0.12);
}

.pop-variant-row--extinct .pop-variant-count {
  color: rgba(255, 255, 255, 0.14);
}

/* ── Spawn section ───────────────────────────────────────── */
.pop-spawn {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.pop-spawn-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pop-spawn-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--c, rgba(255,255,255,0.7));
  display: flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 0 3px color-mix(in srgb, var(--c, white) 50%, transparent));
}
.pop-spawn-icon svg { width: 100%; height: 100%; display: block; }

.pop-spawn-name {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: rgba(255, 255, 255, 0.5);
  min-width: 48px;
}

.pop-spawn-spacer { flex: 1; }

.pop-spawn-btn {
  appearance: none;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  cursor: pointer;
  outline: none;
  -webkit-tap-highlight-color: transparent;
  width: 24px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1;
  color: rgba(255, 255, 255, 0.38);
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  flex-shrink: 0;
}
.pop-spawn-btn:hover {
  color: rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}
.pop-spawn-btn:active {
  color: #fff;
  background: rgba(255, 255, 255, 0.16);
}

/* Gene checkboxes for spawn */
.pop-spawn-genes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  padding-left: 22px;
  margin-top: -0.15rem;
}

.pop-gene-check {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  cursor: pointer;
  padding: 0.08rem 0.35rem;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 100px;
  transition: border-color 0.15s, background 0.15s;
}
.pop-gene-check:hover {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.04);
}

.pop-gene-check input[type="checkbox"] {
  appearance: none;
  width: 7px;
  height: 7px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 2px;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.12s, border-color 0.12s;
}
.pop-gene-check input[type="checkbox"]:checked {
  background: rgba(255, 255, 255, 0.75);
  border-color: rgba(255, 255, 255, 0.75);
}

.pop-gene-check span {
  font-family: var(--font-mono);
  font-size: 0.52rem;
  color: rgba(255, 255, 255, 0.35);
  white-space: nowrap;
  transition: color 0.12s;
}
.pop-gene-check:has(input:checked) span {
  color: rgba(255, 255, 255, 0.72);
}
.pop-gene-check:has(input:checked) {
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.05);
}