.cla-ohm,
.cla-ohm * {
  box-sizing: border-box;
}

.cla-ohm {
  --cla-primary: #b91c1c;
  --cla-primary-dark: #7f1d1d;
  --cla-ink: #172033;
  --cla-muted: #5b6475;
  --cla-line: #d9dee8;
  --cla-soft: #f4f6f9;
  --cla-panel: #ffffff;
  --cla-success: #166534;
  --cla-success-bg: #f0fdf4;
  --cla-error: #991b1b;
  --cla-error-bg: #fef2f2;
  position: relative;
  max-width: 980px;
  margin: 2rem auto;
  padding: clamp(1.15rem, 3vw, 2rem);
  overflow: hidden;
  border: 1px solid var(--cla-line);
  border-radius: 22px;
  background: var(--cla-panel);
  color: var(--cla-ink);
  font-family: inherit;
  box-shadow: 0 18px 48px rgba(23, 32, 51, 0.1);
}

.cla-ohm::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--cla-primary), #f59e0b);
  content: "";
}

.cla-ohm button,
.cla-ohm input,
.cla-ohm select {
  font: inherit;
}

.cla-ohm button {
  cursor: pointer;
}

.cla-ohm__header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.5rem;
  align-items: center;
  margin-bottom: 1.5rem;
}

.cla-ohm__eyebrow {
  margin: 0 0 0.35rem;
  color: var(--cla-primary);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.cla-ohm h2,
.cla-ohm h3,
.cla-ohm p {
  margin-top: 0;
}

.cla-ohm h2 {
  margin-bottom: 0.5rem;
  font-size: clamp(1.55rem, 4vw, 2.35rem);
  line-height: 1.12;
}

.cla-ohm__header p:last-child {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--cla-muted);
}

.cla-ohm__formula {
  min-width: 190px;
  padding: 1rem 1.2rem;
  border: 1px solid #fecaca;
  border-radius: 16px;
  background: #fff7f7;
  text-align: center;
}

.cla-ohm__formula span {
  display: block;
  color: var(--cla-primary-dark);
  font-size: 1.65rem;
  font-weight: 900;
  letter-spacing: 0.03em;
}

.cla-ohm__formula small {
  display: block;
  margin-top: 0.2rem;
  color: var(--cla-muted);
  font-size: 0.74rem;
}

.cla-ohm__mode {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
  margin-bottom: 1.25rem;
  padding: 0.45rem;
  border-radius: 16px;
  background: var(--cla-soft);
}

.cla-ohm__mode button {
  display: flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  color: var(--cla-muted);
  font-weight: 750;
  transition: 160ms ease;
}

.cla-ohm__mode button:hover {
  background: #fff;
  color: var(--cla-ink);
}

.cla-ohm__mode button.is-active {
  border-color: #fecaca;
  background: #fff;
  color: var(--cla-primary-dark);
  box-shadow: 0 5px 16px rgba(23, 32, 51, 0.08);
}

.cla-ohm__symbol {
  display: inline-grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 50%;
  background: #e5e7eb;
  font-size: 0.82rem;
  font-weight: 900;
}

.cla-ohm__mode button.is-active .cla-ohm__symbol {
  background: var(--cla-primary);
  color: #fff;
}

.cla-ohm__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.cla-ohm__field {
  padding: 1rem;
  border: 1px solid var(--cla-line);
  border-radius: 16px;
  background: #fff;
  transition: 160ms ease;
}

.cla-ohm__field.is-target {
  border-color: #fca5a5;
  background: #fff7f7;
  box-shadow: inset 0 0 0 1px #fee2e2;
}

.cla-ohm__field label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 800;
}

.cla-ohm__field label span {
  color: var(--cla-muted);
  font-size: 0.85em;
}

.cla-ohm__input-group {
  display: flex;
  min-width: 0;
  overflow: hidden;
  border: 1px solid #c8cfdb;
  border-radius: 11px;
  background: #fff;
}

.cla-ohm__input-group:focus-within {
  border-color: var(--cla-primary);
  box-shadow: 0 0 0 3px rgba(185, 28, 28, 0.13);
}

.cla-ohm__input-group input {
  width: 100%;
  min-width: 0;
  height: 48px;
  padding: 0.7rem 0.8rem;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--cla-ink);
  font-size: 1.04rem;
  font-weight: 750;
}

.cla-ohm__input-group input.is-target {
  color: var(--cla-primary-dark);
}

.cla-ohm__unit,
.cla-ohm__input-group select {
  display: grid;
  min-width: 54px;
  place-items: center;
  padding: 0 0.65rem;
  border: 0;
  border-left: 1px solid var(--cla-line);
  outline: 0;
  background: var(--cla-soft);
  color: var(--cla-ink);
  font-weight: 800;
}

.cla-ohm__input-group select {
  cursor: pointer;
}

.cla-ohm__actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.15rem;
}

.cla-ohm__actions button {
  min-height: 48px;
  padding: 0.75rem 1.2rem;
  border-radius: 11px;
  font-weight: 800;
}

.cla-ohm__calculate {
  border: 1px solid var(--cla-primary);
  background: var(--cla-primary);
  color: #fff;
}

.cla-ohm__calculate:hover {
  background: var(--cla-primary-dark);
}

.cla-ohm__reset {
  border: 1px solid var(--cla-line);
  background: #fff;
  color: var(--cla-ink);
}

.cla-ohm__reset:hover {
  background: var(--cla-soft);
}

.cla-ohm__message {
  min-height: 1.5rem;
  margin-top: 0.7rem;
  font-size: 0.9rem;
  font-weight: 650;
}

.cla-ohm__message.is-error,
.cla-ohm__message.is-success {
  padding: 0.7rem 0.85rem;
  border-radius: 10px;
}

.cla-ohm__message.is-error {
  background: var(--cla-error-bg);
  color: var(--cla-error);
}

.cla-ohm__message.is-success {
  background: var(--cla-success-bg);
  color: var(--cla-success);
}

.cla-ohm__result {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 0.8rem;
  margin-top: 0.4rem;
  padding: 1rem;
  border: 1px solid #c7d2fe;
  border-radius: 16px;
  background: linear-gradient(135deg, #eef2ff, #f8fafc);
}

.cla-ohm__result[hidden] {
  display: none;
}

.cla-ohm__result-main,
.cla-ohm__result-extra {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
  padding: 0.8rem;
}

.cla-ohm__result-main > span,
.cla-ohm__result-extra > span {
  color: var(--cla-muted);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.cla-ohm__result-main strong {
  margin: 0.2rem 0;
  overflow-wrap: anywhere;
  color: #3730a3;
  font-size: clamp(1.75rem, 5vw, 2.7rem);
  line-height: 1.1;
}

.cla-ohm__result-extra {
  border-left: 1px solid #c7d2fe;
}

.cla-ohm__result-extra strong {
  margin: 0.25rem 0;
  color: var(--cla-ink);
  font-size: 1.45rem;
}

.cla-ohm__result small {
  color: var(--cla-muted);
}

.cla-ohm__diagnosis {
  grid-column: 1 / -1;
  margin: 0;
  padding: 0.85rem;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.75);
  color: #384152;
  font-size: 0.92rem;
  line-height: 1.55;
}

.cla-ohm__examples {
  margin-top: 1.5rem;
  padding-top: 1.35rem;
  border-top: 1px solid var(--cla-line);
}

.cla-ohm__examples h3 {
  margin-bottom: 0.75rem;
  font-size: 1.02rem;
}

.cla-ohm__example-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
}

.cla-ohm__example-grid button {
  min-height: 92px;
  padding: 0.85rem;
  border: 1px solid var(--cla-line);
  border-radius: 12px;
  background: #fff;
  color: var(--cla-ink);
  text-align: left;
  transition: 160ms ease;
}

.cla-ohm__example-grid button:hover {
  border-color: #fca5a5;
  background: #fff7f7;
  transform: translateY(-1px);
}

.cla-ohm__example-grid strong,
.cla-ohm__example-grid span {
  display: block;
}

.cla-ohm__example-grid strong {
  margin-bottom: 0.25rem;
  font-size: 0.88rem;
}

.cla-ohm__example-grid span {
  color: var(--cla-muted);
  font-size: 0.76rem;
  line-height: 1.35;
}

.cla-ohm__help {
  margin-top: 1.2rem;
  border: 1px solid var(--cla-line);
  border-radius: 12px;
  background: var(--cla-soft);
}

.cla-ohm__help summary {
  padding: 0.9rem 1rem;
  cursor: pointer;
  font-weight: 800;
}

.cla-ohm__help > div {
  padding: 0 1rem 0.9rem;
  color: var(--cla-muted);
}

.cla-ohm__help p {
  margin-bottom: 0.35rem;
}

.cla-ohm__safety {
  margin: 1rem 0 0;
  padding: 0.8rem 0.95rem;
  border-left: 4px solid #f59e0b;
  background: #fffbeb;
  color: #5b4a1c;
  font-size: 0.82rem;
  line-height: 1.5;
}

.cla-ohm button:focus-visible,
.cla-ohm input:focus-visible,
.cla-ohm select:focus-visible,
.cla-ohm summary:focus-visible {
  outline: 3px solid rgba(185, 28, 28, 0.35);
  outline-offset: 2px;
}

@media (max-width: 820px) {
  .cla-ohm__header {
    grid-template-columns: 1fr;
  }

  .cla-ohm__formula {
    width: 100%;
  }

  .cla-ohm__grid {
    grid-template-columns: 1fr;
  }

  .cla-ohm__example-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .cla-ohm {
    margin: 1rem auto;
    border-radius: 16px;
  }

  .cla-ohm__mode {
    grid-template-columns: 1fr;
  }

  .cla-ohm__mode button {
    justify-content: flex-start;
  }

  .cla-ohm__actions {
    flex-direction: column;
  }

  .cla-ohm__result {
    grid-template-columns: 1fr;
  }

  .cla-ohm__result-extra {
    border-top: 1px solid #c7d2fe;
    border-left: 0;
  }

  .cla-ohm__example-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cla-ohm *,
  .cla-ohm *::before,
  .cla-ohm *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

/* Versión 2: navegación entre módulos y calculadoras ampliadas. */
.cla-ohm__tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
  margin: 0 0 1.35rem;
  padding: 0.45rem;
  border-radius: 16px;
  background: #e9edf3;
}

.cla-ohm__tabs button {
  display: flex;
  min-height: 54px;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  color: var(--cla-muted);
  font-weight: 850;
  transition: 160ms ease;
}

.cla-ohm__tabs button span {
  display: inline-grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 9px;
  background: #d7dce5;
  color: var(--cla-ink);
  font-size: 0.85rem;
  font-weight: 900;
}

.cla-ohm__tabs button:hover {
  background: rgba(255, 255, 255, 0.7);
  color: var(--cla-ink);
}

.cla-ohm__tabs button.is-active {
  border-color: #fecaca;
  background: #fff;
  color: var(--cla-primary-dark);
  box-shadow: 0 5px 16px rgba(23, 32, 51, 0.08);
}

.cla-ohm__tabs button.is-active span {
  background: var(--cla-primary);
  color: #fff;
}

.cla-ohm__panel {
  animation: cla-panel-in 180ms ease both;
}

.cla-ohm__panel[hidden] {
  display: none;
}

@keyframes cla-panel-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.cla-ohm__section-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.cla-ohm__section-heading h3 {
  margin-bottom: 0.25rem;
  font-size: 1.2rem;
}

.cla-ohm__section-heading p {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--cla-muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.cla-ohm__badge {
  flex: 0 0 auto;
  padding: 0.4rem 0.65rem;
  border: 1px solid #d8dee8;
  border-radius: 999px;
  background: var(--cla-soft);
  color: var(--cla-muted);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.cla-ohm__grid--wide {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cla-ohm__grid--four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.cla-ohm__field > .cla-ohm__input-group > select:only-child {
  width: 100%;
  min-width: 0;
  height: 48px;
  padding: 0.65rem 0.75rem;
  border-left: 0;
  background: #fff;
  text-align: left;
}

.cla-ohm__metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
  margin-top: 0.45rem;
  padding: 1rem;
  border: 1px solid #c7d2fe;
  border-radius: 16px;
  background: linear-gradient(135deg, #eef2ff, #f8fafc);
}

.cla-ohm__metric-grid[hidden] {
  display: none;
}

.cla-ohm__metric {
  display: flex;
  min-width: 0;
  min-height: 132px;
  flex-direction: column;
  justify-content: center;
  padding: 1rem;
  border: 1px solid rgba(199, 210, 254, 0.8);
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.82);
}

.cla-ohm__metric--primary {
  border-color: #fca5a5;
  background: #fffafa;
}

.cla-ohm__metric > span {
  color: var(--cla-muted);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

.cla-ohm__metric strong {
  margin: 0.35rem 0;
  overflow-wrap: anywhere;
  color: var(--cla-ink);
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  line-height: 1.1;
}

.cla-ohm__metric--primary strong {
  color: var(--cla-primary-dark);
  font-size: clamp(1.7rem, 4vw, 2.25rem);
}

.cla-ohm__metric small {
  color: var(--cla-muted);
  font-size: 0.76rem;
  line-height: 1.4;
}

.cla-ohm__metric-grid .cla-ohm__diagnosis {
  grid-column: 1 / -1;
}

@media (max-width: 900px) {
  .cla-ohm__grid--four {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cla-ohm__metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .cla-ohm__grid--wide {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .cla-ohm__tabs {
    grid-template-columns: 1fr;
  }

  .cla-ohm__tabs button {
    justify-content: flex-start;
  }

  .cla-ohm__section-heading {
    flex-direction: column;
  }

  .cla-ohm__grid--wide,
  .cla-ohm__grid--four,
  .cla-ohm__metric-grid {
    grid-template-columns: 1fr;
  }
}