.html-post {
  --mm-body: #f2c230;
  --mm-body-edge: #c99a12;
  --mm-ink: #1f2a2e;
  --mm-muted: #52646b;
  --mm-lcd: #c9d6b8;
  --mm-lcd-ink: #1c2617;
  --mm-red: #c8322b;
  --mm-ok: #2f7a43;
  --mm-ok-bg: #edf7ef;
  --mm-warn: #9a6400;
  --mm-warn-bg: #fdf5e4;
  --mm-danger: #b0261f;
  --mm-danger-bg: #fdeceb;
}

.html-post .mm-unit {
  margin-left: 0.3em;
  color: var(--mm-muted);
  font-size: 0.8em;
  font-weight: 400;
}

/* 표 */
.html-post th {
  min-width: 4.5em;
  word-break: keep-all;
}

/* 구조 그림 */
.html-post .mm-figure {
  max-width: 420px;
  margin: 1.5rem auto;
}

.html-post .mm-figure svg {
  display: block;
  width: 100%;
  height: auto;
}

.html-post .mm-svg-body { fill: var(--mm-body); stroke: var(--mm-body-edge); stroke-width: 3; }
.html-post .mm-svg-lcd { fill: var(--mm-lcd); stroke: #6b7a62; stroke-width: 2; }
.html-post .mm-svg-lcd-text { fill: var(--mm-lcd-ink); font: 700 34px ui-monospace, SFMono-Regular, Menlo, monospace; }
.html-post .mm-svg-dial { fill: #2b3438; }
.html-post .mm-svg-knob { fill: #4a565b; }
.html-post .mm-svg-pointer { fill: #f5f5f5; }
.html-post .mm-svg-small { fill: var(--mm-ink); font: 700 13px system-ui, sans-serif; }
.html-post .mm-svg-jack { fill: #1b1f21; stroke: #555; stroke-width: 3; }
.html-post .mm-svg-jack--red { stroke: var(--mm-red); }
.html-post .mm-svg-lead { fill: none; stroke-width: 6; stroke-linecap: round; }
.html-post .mm-svg-lead--black { stroke: #1b1f21; }
.html-post .mm-svg-lead--red { stroke: var(--mm-red); }
.html-post .mm-svg-callout circle { fill: var(--post-accent); }
.html-post .mm-svg-callout text { fill: #fff; font: 700 14px system-ui, sans-serif; }
.html-post .mm-svg-callout line { stroke: var(--post-accent); stroke-width: 2; stroke-dasharray: 4 3; }

.html-post .mm-legend li,
.html-post .mm-steps li {
  margin-bottom: 0.4rem;
}

/* 연습 장치 */
.html-post .mm-lab__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr));
  gap: 1.25rem;
  margin: 1.25rem 0 0.5rem;
  align-items: start;
}

.html-post .mm-meter {
  padding: 1rem;
  border: 3px solid var(--mm-body-edge);
  border-radius: 1.1rem;
  background: var(--mm-body);
  color: var(--mm-ink);
}

.html-post .mm-lcd {
  display: flex;
  align-items: baseline;
  justify-content: flex-end;
  gap: 0.4rem;
  min-height: 4.2rem;
  padding: 0.6rem 0.9rem;
  border: 2px solid #6b7a62;
  border-radius: 0.4rem;
  background: var(--mm-lcd);
  color: var(--mm-lcd-ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

.html-post .mm-lcd[data-off="true"] {
  background: #aab4a0;
}

.html-post .mm-lcd[data-over="true"] .mm-lcd__value {
  margin-right: auto;
}

.html-post .mm-lcd__value {
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.html-post .mm-lcd__unit {
  font-size: 1.1rem;
  font-weight: 700;
}

.html-post .mm-lcd__beep {
  order: -1;
  margin-right: auto;
  font-weight: 700;
  animation: mm-blink 0.5s steps(2) infinite;
}

@keyframes mm-blink {
  50% { opacity: 0.2; }
}

@media (prefers-reduced-motion: reduce) {
  .html-post .mm-lcd__beep { animation: none; }
}

.html-post .mm-meter fieldset,
.html-post .mm-targets fieldset {
  margin: 0.9rem 0 0;
  padding: 0;
  border: 0;
}

.html-post .mm-meter legend,
.html-post .mm-targets legend {
  margin-bottom: 0.4rem;
  padding: 0;
  font-size: 0.85em;
  font-weight: 700;
}

.html-post .mm-hint {
  font-weight: 400;
}

.html-post .mm-dial__group {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(5.2rem, 1fr));
  gap: 0.35rem;
}

.html-post .mm-dial__group label,
.html-post .mm-jacks label,
.html-post .mm-targets__list label {
  position: relative;
  display: block;
  cursor: pointer;
}

.html-post .mm-dial__group input,
.html-post .mm-jacks input,
.html-post .mm-targets__list input {
  position: absolute;
  opacity: 0;
}

.html-post .mm-dial__group span {
  display: block;
  padding: 0.45rem 0.3rem;
  border-radius: 0.4rem;
  background: #2b3438;
  color: #f2f2f2;
  font-size: 0.82em;
  font-weight: 700;
  text-align: center;
}

.html-post .mm-dial__group input:checked + span {
  background: #fff;
  color: var(--mm-ink);
  box-shadow: inset 0 0 0 2px var(--mm-ink);
}

.html-post .mm-dial__group input:focus-visible + span,
.html-post .mm-targets__list input:focus-visible + span {
  outline: 3px solid var(--post-accent);
  outline-offset: 2px;
}

.html-post .mm-jacks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.html-post .mm-jacks legend {
  width: 100%;
}

.html-post .mm-jacks label {
  padding: 0.4rem 0.8rem;
  border: 2px solid #1b1f21;
  border-radius: 999px;
  background: #1b1f21;
  color: #f2f2f2;
  font-size: 0.85em;
  font-weight: 700;
}

.html-post .mm-jacks label:has(input:focus-visible) {
  outline: 3px solid var(--post-accent);
  outline-offset: 2px;
}

.html-post .mm-jacks label:has(input:checked) {
  border-color: var(--mm-red);
  background: var(--mm-red);
}

.html-post .mm-swap {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.9rem;
  font-size: 0.85em;
  cursor: pointer;
}

.html-post .mm-targets fieldset {
  margin-top: 0;
}

.html-post .mm-targets__list {
  display: grid;
  gap: 0.35rem;
}

.html-post .mm-targets__list span {
  display: block;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--post-border);
  border-radius: 0.45rem;
  background: #fff;
  font-size: 0.9em;
  font-weight: 700;
}

.html-post .mm-targets__list small {
  display: block;
  color: var(--mm-muted);
  font-weight: 400;
}

.html-post .mm-targets__list input:checked + span {
  border-color: var(--post-accent);
  background: var(--post-surface);
  box-shadow: inset 4px 0 0 var(--post-accent);
}

.html-post .mm-feedback {
  margin-top: 0.9rem;
  padding: 0.85rem 1rem;
  border-left: 4px solid var(--post-accent);
  border-radius: 0.45rem;
  background: var(--post-surface);
  font-size: 0.92em;
  line-height: 1.6;
}

.html-post .mm-feedback p {
  margin: 0;
}

.html-post .mm-feedback[data-tone="ok"] { border-color: var(--mm-ok); background: var(--mm-ok-bg); }
.html-post .mm-feedback[data-tone="warn"] { border-color: var(--mm-warn); background: var(--mm-warn-bg); }
.html-post .mm-feedback[data-tone="danger"] { border-color: var(--mm-danger); background: var(--mm-danger-bg); }

.html-post .mm-note {
  color: var(--mm-muted);
  font-size: 0.82em;
}

.html-post .mm-panel--warn {
  border-left-color: var(--mm-danger);
  background: var(--mm-danger-bg);
}

/* 확인 문제 */
.html-post .mm-quiz__item {
  margin: 1rem 0;
  padding: 1rem 1.1rem;
  border: 1px solid var(--post-border);
  border-radius: 0.45rem;
}

.html-post .mm-quiz__item legend {
  padding: 0 0.3rem;
  font-weight: 700;
}

.html-post .mm-quiz__options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.html-post .mm-quiz__options button {
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--post-border);
  border-radius: 0.4rem;
  background: #fff;
  color: var(--mm-ink);
  font: inherit;
  font-size: 0.9em;
  cursor: pointer;
}

.html-post .mm-quiz__options button[data-state="correct"] {
  border-color: var(--mm-ok);
  background: var(--mm-ok-bg);
  font-weight: 700;
}

.html-post .mm-quiz__options button[data-state="wrong"] {
  border-color: var(--mm-danger);
  background: var(--mm-danger-bg);
  text-decoration: line-through;
}

.html-post .mm-quiz__explain {
  margin: 0.75rem 0 0;
  font-size: 0.9em;
}

.html-post .mm-quiz__explain:empty {
  display: none;
}

/* 회로 그림 */
.html-post .mm-circuit {
  margin: 0;
  padding: 0.75rem;
  border: 1px solid var(--post-border);
  border-radius: 0.45rem;
}

.html-post .mm-circuit svg {
  display: block;
  width: 100%;
  height: auto;
}

.html-post .mm-circuit figcaption {
  margin-top: 0.5rem;
  font-family: inherit;
  font-size: 0.88em;
}

.html-post .mm-svg-wire { fill: none; stroke: var(--mm-ink); stroke-width: 2.5; }
.html-post .mm-svg-wire--thick { stroke-width: 5; }
.html-post .mm-svg-wire--thin { stroke-width: 1.5; }
.html-post .mm-svg-open { fill: #fff; stroke: var(--mm-ink); stroke-width: 2; }
.html-post .mm-svg-part { fill: #fff; stroke: var(--mm-ink); stroke-width: 2.5; }
.html-post .mm-svg-led { fill: #f3a49f; stroke: var(--mm-ink); stroke-width: 2; }
.html-post .mm-svg-dot { fill: var(--mm-ink); }
.html-post .mm-svg-meter { fill: var(--mm-body); stroke: var(--mm-ink); stroke-width: 2.5; }
.html-post .mm-svg-meter-text { fill: var(--mm-ink); font: 700 18px system-ui, sans-serif; }
.html-post .mm-svg-lead--thin { stroke-width: 3; }
.html-post .mm-svg-muted { fill: var(--mm-muted); font-weight: 400; }

/* 색띠 표 */
.html-post .mm-swatch {
  display: inline-block;
  width: 0.9em;
  height: 0.9em;
  margin-right: 0.4em;
  border: 1px solid #888;
  border-radius: 2px;
  background: var(--c);
  vertical-align: -0.1em;
}