/* Noise Level Logger — tool-specific overrides only.
   Shared tokens/components live in design-system.css. Prefix: nll
   Also defines the per-tool helpers this category uses (related-tools-grid/card). */

/* ---- hero caveat note ---- */
.nll-warn-note {
  max-width: 820px; margin: var(--space-md) auto 0;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid #ffb000; border-left: 4px solid #ffb000;
  border-radius: var(--radius-sm); background: rgba(255, 176, 0, 0.07);
  color: #ffd479; font-size: 0.9rem; line-height: 1.55; text-align: left;
}
.nll-warn-note strong { color: #ffd479; }

/* ---- layout ---- */
.nll-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}
@media (max-width: 860px) {
  .nll-grid { grid-template-columns: 1fr; }
}

/* ---- controls ---- */
.nll-select {
  width: 100%; padding: 10px 12px;
  background: var(--color-bg); color: var(--color-text);
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  font-family: var(--font-mono); font-size: 0.9rem;
}

.nll-status {
  margin-top: var(--space-md); padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03); border: 1px solid var(--color-border);
  font-family: var(--font-mono); font-size: 0.85rem;
  color: var(--color-text-dim); min-height: 1.2em;
}

.nll-hint { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 6px; line-height: 1.5; }

/* ---- live readout ---- */
.nll-readout {
  text-align: center; padding: var(--space-md);
  border: 1px solid var(--color-border); border-radius: var(--radius-md);
  background: rgba(0, 255, 65, 0.03);
}
.nll-readout__val {
  font-family: var(--font-mono); font-size: clamp(2.4rem, 8vw, 3.4rem); line-height: 1;
  color: var(--color-primary); font-variant-numeric: tabular-nums;
}
.nll-readout__unit { font-size: 1rem; margin-left: 6px; color: var(--color-text-dim); }
.nll-readout__spl { margin-top: 8px; font-family: var(--font-mono); font-size: 0.9rem; color: var(--color-text-muted); }
.nll-readout__spl--on { color: var(--color-secondary); }

/* ---- chart ---- */
.nll-chart-wrap { margin-top: var(--space-md); }
.nll-canvas {
  width: 100%; height: auto; display: block;
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  background: #020308;
}
.nll-plot-title {
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--color-text-muted);
  margin-top: 6px; text-align: center;
}

/* ---- calibration ---- */
.nll-cal {
  margin-top: var(--space-md); padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}
.nll-cal__row { display: flex; gap: var(--space-sm); align-items: flex-end; flex-wrap: wrap; }
.nll-cal__field { flex: 1 1 140px; min-width: 120px; }
.nll-num {
  width: 100%; padding: 8px 12px;
  background: var(--color-bg); color: var(--color-text);
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  font-family: var(--font-mono); font-size: 0.9rem;
}
.nll-cal__state { margin-top: 10px; font-size: 0.82rem; line-height: 1.5; color: var(--color-text-muted); }
.nll-cal__state--on { color: var(--color-secondary); }

/* ---- stats cells ---- */
.nll-cells {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}
@media (max-width: 760px) { .nll-cells { grid-template-columns: repeat(2, 1fr); } }
.nll-cell {
  text-align: center; padding: var(--space-md) 6px;
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  background: rgba(0, 255, 65, 0.02);
}
.nll-cell__label {
  font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--color-text-dim);
}
.nll-cell__value {
  margin-top: 6px; font-family: var(--font-mono); font-size: 1.05rem;
  color: var(--color-secondary); font-variant-numeric: tabular-nums; word-break: break-word;
}

/* ---- action buttons row ---- */
.nll-actions { display: flex; gap: var(--space-sm); flex-wrap: wrap; margin-bottom: var(--space-lg); }
.nll-actions .btn { flex: 1 1 160px; }

/* ---- saved sessions ---- */
.nll-sessions { margin-top: var(--space-sm); display: flex; flex-direction: column; gap: var(--space-sm); }
.nll-sessions__empty { font-size: 0.85rem; color: var(--color-text-muted); line-height: 1.55; }
.nll-session {
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  padding: 10px 12px; background: rgba(255, 255, 255, 0.02);
}
.nll-session__head { display: flex; justify-content: space-between; align-items: center; gap: var(--space-sm); }
.nll-session__label { font-family: var(--font-mono); font-size: 0.85rem; color: var(--color-text-bright); }
.nll-session__del {
  background: transparent; border: 1px solid var(--color-border); color: var(--color-text-muted);
  border-radius: var(--radius-sm); padding: 4px 10px; font-size: 0.72rem; cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.nll-session__del:hover { border-color: var(--color-error); color: var(--color-error); }
.nll-session__meta { margin-top: 6px; font-family: var(--font-mono); font-size: 0.76rem; color: var(--color-text-muted); line-height: 1.5; }

/* ---- compare ---- */
.nll-cmp__controls { display: flex; gap: var(--space-sm); align-items: flex-end; flex-wrap: wrap; margin-top: var(--space-md); }
.nll-cmp__field { flex: 1 1 180px; min-width: 150px; }
.nll-cmp__out { margin-top: var(--space-md); font-size: 0.85rem; color: var(--color-text-muted); line-height: 1.6; }
.nll-cmp__title { font-family: var(--font-mono); color: var(--color-text-bright); margin-bottom: var(--space-sm); }
.nll-cmp__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-sm); }
@media (max-width: 640px) { .nll-cmp__grid { grid-template-columns: repeat(2, 1fr); } }
.nll-cmp__cell {
  text-align: center; padding: var(--space-sm) 6px;
  border: 1px solid var(--color-border); border-radius: var(--radius-sm); background: rgba(0, 255, 65, 0.02);
}
.nll-cmp__lab { font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-text-dim); }
.nll-cmp__val { margin-top: 6px; font-family: var(--font-mono); font-size: 1.15rem; color: var(--color-text-bright); font-variant-numeric: tabular-nums; }
.nll-cmp__val--down { color: var(--color-success); }
.nll-cmp__val--up { color: var(--color-warning); }
.nll-cmp__foot { margin-top: var(--space-sm); font-size: 0.78rem; color: var(--color-text-muted); }

/* ---- content + FAQ helpers (per-tool, matches category convention) ---- */
.content-section { max-width: 800px; margin: 0 auto var(--space-lg); color: var(--color-text); line-height: 1.7; }
.content-section p { margin-bottom: var(--space-sm); }

/* ---- related tools ---- */
.related-tools-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md); max-width: 900px; margin: 0 auto; }
.related-tool-card {
  display: block; background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: var(--space-md); text-decoration: none;
  transition: border-color 0.2s, transform 0.2s; text-align: left;
}
.related-tool-card:hover { border-color: var(--color-primary); transform: translateY(-2px); }
.related-tool-card__title { font-family: var(--font-display); font-size: var(--fs-sm); color: var(--color-primary); margin-bottom: var(--space-xs); }
.related-tool-card__desc { font-size: var(--fs-xs); color: var(--color-text-muted); line-height: 1.5; }

@media (max-width: 640px) {
  .related-tools-grid { grid-template-columns: 1fr; }
}