.sh-preset-grid {
  display: grid;
  gap: 0.45rem;
  margin-bottom: 0.85rem;
}
@media (min-width: 720px) {
  .sh-preset-grid {
    grid-template-columns: 1fr 1fr;
  }
}
.sh-preset-grid button {
  text-align: left;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  padding: 0.55rem 0.7rem;
  cursor: pointer;
  color: var(--ink);
  font: inherit;
}
.sh-preset-grid button.is-active {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, var(--surface));
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 22%, transparent);
}
.sh-preset-grid .title {
  display: block;
  font-weight: 650;
  font-size: 0.92rem;
}
.sh-preset-grid .meta {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.sh-sliders {
  display: grid;
  gap: 0.65rem;
  margin: 0.75rem 0;
}
@media (min-width: 720px) {
  .sh-sliders {
    grid-template-columns: 1fr 1fr;
  }
}
.sh-field label {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.2rem;
}
.sh-field label span {
  font-family: var(--mono);
  color: var(--ink);
}
.sh-field input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.rule-box {
  font-family: var(--mono);
  font-size: 0.82rem;
  padding: 0.55rem 0.7rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--surface);
  margin-bottom: 0.75rem;
  color: var(--muted);
  line-height: 1.45;
}

.verdicts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.verdict {
  font-family: var(--mono);
  font-size: 0.88rem;
  font-weight: 700;
  padding: 0.4rem 0.65rem;
  border-radius: 8px;
}
.verdict.ok {
  background: var(--ok-bg);
  color: var(--ok);
}
.verdict.fail {
  background: var(--err-bg);
  color: var(--err);
}

.diagram-wrap {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface2);
  overflow: auto;
  padding: 0.5rem;
}
.timing-svg {
  display: block;
  width: 100%;
  min-width: 560px;
  font-family: var(--mono);
  user-select: none;
}
.timing-svg .rail {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
}
.timing-svg .rail.clk { stroke: var(--signal); }
.timing-svg .rail.data { stroke: var(--accent-hover); }
.timing-svg .rail.q { stroke: #3a6ea5; }
.timing-svg .edge {
  stroke: var(--muted);
  stroke-width: 1;
  stroke-dasharray: 4 3;
}
.timing-svg .win-setup {
  fill: color-mix(in srgb, var(--ok) 22%, transparent);
  stroke: var(--ok);
  stroke-width: 1.25;
}
.timing-svg .win-hold {
  fill: color-mix(in srgb, var(--signal) 20%, transparent);
  stroke: var(--signal);
  stroke-width: 1.25;
}
.timing-svg .win-setup.bad,
.timing-svg .win-hold.bad {
  fill: color-mix(in srgb, var(--err) 22%, transparent);
  stroke: var(--err);
}
.timing-svg .label {
  fill: var(--ink);
  font-size: 11px;
  font-weight: 650;
}
.timing-svg .anno {
  fill: var(--muted);
  font-size: 10px;
}
.timing-svg .anno.ok { fill: var(--ok); font-weight: 700; }
.timing-svg .anno.bad { fill: var(--err); font-weight: 700; }
.timing-svg .axis { fill: var(--muted); font-size: 10px; }
.timing-svg .hit {
  fill: transparent;
  cursor: ew-resize;
}

.sh-msg {
  font-family: var(--mono);
  font-size: 0.85rem;
  margin: 0.45rem 0 0;
}
.sh-msg.ok { color: var(--ok); }
.sh-msg.err { color: var(--err); }
.sh-hint {
  margin: 0.45rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.metrics {
  display: grid;
  gap: 0.35rem;
  margin-top: 0.75rem;
  font-family: var(--mono);
  font-size: 0.82rem;
}
.metrics div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.35rem 0.55rem;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--line);
}
.metrics strong { color: var(--ink); }