.signal-capacity-tool {
  --signal-blue: #1687ff;
  --signal-cyan: #12c8f4;
  --signal-orange: #ff6b35;
  --signal-panel: rgba(5, 20, 40, 0.94);
  --signal-panel-soft: rgba(10, 37, 71, 0.76);
  position: relative;
  isolation: isolate;
  margin: 28px 0 56px;
  overflow: hidden;
  border: 1px solid rgba(28, 141, 255, 0.46);
  border-radius: 28px;
  background:
    radial-gradient(circle at 92% 8%, rgba(18, 200, 244, 0.12), transparent 28rem),
    linear-gradient(145deg, rgba(5, 28, 57, 0.98), rgba(2, 12, 27, 0.99));
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.38);
}

.signal-capacity-tool::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(rgba(25, 125, 220, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(25, 125, 220, 0.045) 1px, transparent 1px);
  background-size: 28px 28px;
  content: "";
  mask-image: linear-gradient(to bottom, #000, transparent 75%);
}

.signal-capacity-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 30px;
  padding: 34px 36px 28px;
  border-bottom: 1px solid rgba(38, 116, 196, 0.28);
}

.signal-capacity-heading h2 {
  max-width: 760px;
  margin: 7px 0 10px;
  color: #f5f9ff;
  font-size: clamp(1.75rem, 3vw, 2.65rem);
  line-height: 1.05;
}

.signal-capacity-heading p {
  max-width: 760px;
  margin: 0;
  color: #a9bdd6;
  line-height: 1.65;
}

.signal-capacity-brand {
  flex: 0 0 auto;
}

.signal-capacity-form {
  padding: 28px 36px 36px;
}

.signal-capacity-form fieldset {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.signal-capacity-form legend {
  width: 100%;
  margin: 0 0 15px;
  color: #7e9abb;
  font-size: 0.73rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.signal-capacity-selector-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
}

.signal-capacity-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.signal-capacity-tabs label {
  position: relative;
  cursor: pointer;
}

.signal-capacity-tabs input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.signal-capacity-tabs label > span {
  display: flex;
  align-items: center;
  min-height: 74px;
  gap: 16px;
  padding: 14px 20px;
  border: 1px solid rgba(77, 132, 191, 0.46);
  border-radius: 16px;
  background: rgba(3, 17, 34, 0.78);
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.signal-capacity-tabs label > span > strong {
  display: grid;
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid rgba(22, 135, 255, 0.55);
  border-radius: 13px;
  color: #ecf7ff;
  font-size: 1rem;
}

.signal-capacity-tabs label > span > small {
  color: #9fb4ce;
  font-size: 0.88rem;
  font-weight: 700;
}

.signal-capacity-tabs input:checked + span {
  border-color: var(--signal-cyan);
  background: linear-gradient(135deg, rgba(18, 91, 178, 0.42), rgba(7, 39, 74, 0.9));
  box-shadow: inset 0 0 0 1px rgba(18, 200, 244, 0.22), 0 10px 30px rgba(0, 109, 210, 0.15);
}

.signal-capacity-tabs input:checked + span > strong {
  border-color: var(--signal-cyan);
  background: linear-gradient(145deg, var(--signal-blue), #0751be);
  box-shadow: 0 0 22px rgba(18, 200, 244, 0.28);
}

.signal-capacity-tabs input:focus-visible + span {
  outline: 3px solid rgba(255, 107, 53, 0.72);
  outline-offset: 3px;
}

.signal-capacity-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 18px;
}

.signal-capacity-inputs,
.signal-capacity-results {
  border: 1px solid rgba(51, 112, 178, 0.4);
  border-radius: 20px;
  background: var(--signal-panel);
}

.signal-capacity-inputs {
  padding: 24px;
}

.signal-capacity-fields {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 13px;
}

.signal-capacity-fields > label {
  display: grid;
  align-content: start;
  gap: 9px;
  min-width: 0;
  color: #b6c7da;
  font-size: 0.8rem;
  font-weight: 750;
}

.signal-capacity-number {
  display: flex;
  min-width: 0;
  min-height: 50px;
  overflow: hidden;
  border: 1px solid rgba(62, 127, 198, 0.58);
  border-radius: 13px;
  background: #06162b;
}

.signal-capacity-number:focus-within {
  border-color: var(--signal-cyan);
  box-shadow: 0 0 0 3px rgba(18, 200, 244, 0.12);
}

.signal-capacity-number > .resource-number-stepper {
  min-width: 0;
  flex: 1 1 auto;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.signal-capacity-number input[type="number"],
.signal-capacity-number input[type="text"] {
  width: 100%;
  min-width: 0;
  min-height: 48px;
  border: 0;
  outline: 0;
  background: transparent;
  color: #f7fbff;
  font: 800 0.95rem/1 var(--font-body, sans-serif);
  text-align: center;
}

.signal-capacity-number > b {
  display: grid;
  min-width: 54px;
  place-items: center;
  border-left: 1px solid rgba(62, 127, 198, 0.38);
  color: #9eb4ce;
  font-size: 0.75rem;
}

.signal-capacity-preset-note {
  margin: 18px 0 11px;
  color: #8fa8c5;
  font-size: 0.78rem;
  line-height: 1.5;
}

.signal-capacity-reset {
  min-width: 132px;
  min-height: 74px;
  padding: 0 20px;
  border: 1px solid rgba(70, 137, 210, 0.55);
  border-radius: 16px;
  background: rgba(9, 39, 75, 0.85);
  color: #ddebfb;
  font-weight: 800;
  cursor: pointer;
}

.signal-capacity-reset:hover {
  border-color: var(--signal-cyan);
  background: rgba(12, 60, 112, 0.95);
}

.signal-capacity-reset:focus-visible {
  outline: 3px solid rgba(255, 107, 53, 0.72);
  outline-offset: 3px;
}

.signal-capacity-results {
  display: grid;
  position: relative;
  overflow: hidden;
  grid-template-columns: minmax(230px, 0.72fr) minmax(0, 1.28fr);
  column-gap: 30px;
  padding: 26px;
  background:
    radial-gradient(circle at 100% 0, rgba(18, 200, 244, 0.16), transparent 18rem),
    linear-gradient(145deg, rgba(9, 48, 91, 0.96), rgba(5, 23, 45, 0.98));
}

.signal-capacity-results::after {
  position: absolute;
  top: -48px;
  right: -42px;
  width: 160px;
  height: 160px;
  border: 1px solid rgba(18, 200, 244, 0.19);
  border-radius: 50%;
  content: "";
}

.signal-capacity-result-label {
  display: flex;
  position: relative;
  z-index: 1;
  grid-column: 1 / -1;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: #77a2d0;
  font-size: 0.69rem;
  font-weight: 850;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.signal-capacity-result-label em {
  padding: 7px 10px;
  border: 1px solid rgba(18, 200, 244, 0.44);
  border-radius: 999px;
  color: #abecff;
  font-style: normal;
  letter-spacing: 0.06em;
}

.signal-capacity-results h3 {
  position: relative;
  z-index: 1;
  grid-column: 1;
  grid-row: 2;
  margin: 16px 0 3px;
  color: #dceafa;
  font-size: 0.95rem;
}

.signal-capacity-result-primary {
  display: flex;
  position: relative;
  z-index: 1;
  grid-column: 1;
  grid-row: 3 / 5;
  align-items: baseline;
  gap: 12px;
  margin: 3px 0 18px;
}

.signal-capacity-result-primary strong {
  color: var(--signal-cyan);
  font: 800 clamp(3.25rem, 7vw, 5.7rem)/0.95 var(--font-display, sans-serif);
  letter-spacing: -0.05em;
  text-shadow: 0 0 28px rgba(18, 200, 244, 0.25);
}

.signal-capacity-result-primary span {
  max-width: 110px;
  color: #b6c9dc;
  font-size: 0.84rem;
  font-weight: 750;
  line-height: 1.3;
}

.signal-capacity-result-details {
  display: grid;
  position: relative;
  z-index: 1;
  grid-column: 2;
  grid-row: 2 / 4;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-self: center;
  gap: 8px;
  margin: 0;
}

.signal-capacity-result-details > div {
  min-width: 0;
  padding: 11px;
  border: 1px solid rgba(76, 133, 192, 0.3);
  border-radius: 11px;
  background: rgba(2, 18, 36, 0.55);
}

.signal-capacity-result-details dt {
  min-height: 30px;
  color: #7898ba;
  font-size: 0.65rem;
  font-weight: 750;
  line-height: 1.25;
}

.signal-capacity-result-details dd {
  margin: 5px 0 0;
  color: #eef7ff;
  font-size: 0.84rem;
  font-weight: 850;
}

.signal-capacity-status {
  position: relative;
  z-index: 1;
  grid-column: 2;
  grid-row: 4;
  margin: 12px 0 0;
  color: #a8bfd7;
  font-size: 0.75rem;
  line-height: 1.5;
}

.signal-capacity-error {
  margin-top: 16px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 107, 53, 0.62);
  border-radius: 12px;
  background: rgba(92, 28, 17, 0.45);
  color: #ffd3c4;
  font-weight: 750;
}

.signal-capacity-method {
  margin-top: 18px;
  padding: 24px;
  border: 1px solid rgba(51, 112, 178, 0.34);
  border-radius: 20px;
  background: rgba(3, 17, 34, 0.72);
}

.signal-capacity-method h3 {
  margin: 5px 0 17px;
  color: #edf7ff;
  font-size: 1.35rem;
}

.signal-capacity-formulas {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 11px;
}

.signal-capacity-formulas article {
  display: grid;
  gap: 9px;
  padding: 17px;
  border: 1px solid rgba(58, 123, 192, 0.36);
  border-radius: 14px;
  background: rgba(7, 33, 65, 0.72);
}

.signal-capacity-formulas span {
  color: #87a5c6;
  font-size: 0.72rem;
  font-weight: 750;
}

.signal-capacity-formulas strong {
  overflow-wrap: anywhere;
  color: var(--signal-cyan);
  font: 750 clamp(1rem, 2vw, 1.25rem)/1.4 ui-monospace, SFMono-Regular, Consolas, monospace;
}

.signal-capacity-notice {
  margin-top: 18px;
  padding: 17px 20px;
  border: 1px solid rgba(255, 107, 53, 0.35);
  border-radius: 14px;
  background: rgba(84, 30, 19, 0.27);
  color: #bdc9d8;
  font-size: 0.8rem;
  line-height: 1.65;
}

.signal-capacity-notice strong {
  color: #ffb698;
}

@media (max-width: 980px) {
  .signal-capacity-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .signal-capacity-results {
    grid-template-columns: minmax(190px, 0.62fr) minmax(0, 1.38fr);
    column-gap: 20px;
  }
}

@media (max-width: 720px) {
  .signal-capacity-tool {
    margin: 20px 0 42px;
    border-radius: 20px;
  }

  .signal-capacity-heading {
    padding: 25px 20px 22px;
  }

  .signal-capacity-brand {
    display: none;
  }

  .signal-capacity-form {
    padding: 20px;
  }

  .signal-capacity-selector-row {
    grid-template-columns: 1fr;
  }

  .signal-capacity-reset {
    width: 100%;
    min-height: 48px;
  }

  .signal-capacity-tabs,
  .signal-capacity-fields,
  .signal-capacity-formulas {
    grid-template-columns: 1fr;
  }

  .signal-capacity-results {
    display: block;
  }

  .signal-capacity-result-details {
    grid-template-columns: 1fr;
  }

  .signal-capacity-result-details dt {
    min-height: 0;
  }
}

@media (max-width: 460px) {
  .signal-capacity-heading h2 {
    font-size: 1.72rem;
  }

  .signal-capacity-heading,
  .signal-capacity-form {
    padding-right: 15px;
    padding-left: 15px;
  }

  .signal-capacity-tabs label > span {
    min-height: 68px;
    padding: 11px 13px;
  }

  .signal-capacity-inputs,
  .signal-capacity-results,
  .signal-capacity-method {
    padding: 18px 14px;
    border-radius: 16px;
  }

  .signal-capacity-result-primary {
    align-items: flex-end;
  }

  .signal-capacity-result-primary strong {
    font-size: 3.55rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .signal-capacity-tabs label > span {
    transition: none;
  }
}