:root {
  --tool-blue: #087de3;
  --tool-blue-dark: #0564b9;
  --tool-ink: #101820;
  --tool-muted: #55616c;
  --tool-line: #dce2e6;
  --tool-soft: #f3f6f7;
  --tool-success: #176f50;
}

.tool-hero {
  min-height: 520px;
}

.tool-hero .hero-content {
  max-width: 780px;
  padding-bottom: 72px;
}

.tool-intro {
  padding: 36px 0;
  border-bottom: 1px solid var(--tool-line);
  background: #fff;
}

.tool-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(240px, 0.8fr);
  gap: 40px;
  align-items: start;
}

.tool-intro h2,
.tool-section h2,
.tool-directory h2 {
  margin-bottom: 12px;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  line-height: 1.12;
}

.tool-intro p,
.tool-section p,
.tool-directory p {
  color: var(--tool-muted);
}

.privacy-note {
  padding: 18px 20px;
  border: 1px solid var(--tool-line);
  border-radius: 12px;
  background: var(--tool-soft);
  color: var(--tool-ink);
  font-size: 0.94rem;
  line-height: 1.55;
}

.tool-section,
.tool-directory {
  padding: clamp(56px, 8vw, 92px) 0;
}

.tool-section--soft {
  background: var(--tool-soft);
}

.tool-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 28px;
  align-items: start;
  margin-top: 30px;
}

.tool-form,
.tool-result {
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--tool-line);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 16px 38px rgba(7, 23, 37, 0.07);
}

.tool-form fieldset {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  border: 0;
}

.tool-form legend {
  margin-bottom: 22px;
  color: var(--tool-ink);
  font-size: 1.3rem;
  font-weight: 720;
}

.tool-form-intro {
  margin: -10px 0 2px;
  color: var(--tool-muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.field-grid--three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.field {
  display: grid;
  gap: 7px;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  color: var(--tool-ink);
  font-size: 0.91rem;
  font-weight: 680;
}

.field input,
.field select {
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid #b9c3cb;
  border-radius: 9px;
  background: #fff;
  color: var(--tool-ink);
  font: inherit;
}

.field input:focus,
.field select:focus {
  border-color: var(--tool-blue);
  outline: 3px solid rgba(8, 125, 227, 0.18);
  outline-offset: 1px;
}

.field small {
  color: var(--tool-muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

.tool-form .button {
  min-height: 48px;
  margin-top: 6px;
  border: 0;
  border-radius: 8px;
  background: var(--tool-blue);
  color: #fff;
  cursor: pointer;
}

.tool-form .button:hover {
  background: var(--tool-blue-dark);
}

.optional-fields {
  margin-top: 2px;
  border-top: 1px solid var(--tool-line);
  border-bottom: 1px solid var(--tool-line);
}

.optional-fields summary {
  display: flex;
  min-height: 48px;
  align-items: center;
  justify-content: space-between;
  color: var(--tool-blue-dark);
  cursor: pointer;
  font-size: 0.94rem;
  font-weight: 720;
  list-style: none;
}

.optional-fields summary::-webkit-details-marker {
  display: none;
}

.optional-fields summary::after {
  color: var(--tool-muted);
  content: "+";
  font-size: 1.35rem;
  font-weight: 420;
}

.optional-fields[open] summary::after {
  content: "–";
}

.optional-fields__body {
  display: grid;
  gap: 16px;
  padding: 4px 0 20px;
}

.tool-first-contact {
  margin: 0;
  color: var(--tool-muted);
  font-size: 0.9rem;
  line-height: 1.55;
  text-align: center;
}

.tool-first-contact a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--tool-blue-dark);
  font-weight: 720;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.tool-result {
  position: sticky;
  top: 24px;
  min-height: 310px;
  background: var(--tool-soft);
}

.result-ready[hidden],
.result-empty[hidden] {
  display: none;
}

.result-empty {
  display: grid;
  min-height: 180px;
  place-items: center;
  color: var(--tool-muted);
  text-align: center;
}

.result-kicker {
  margin-bottom: 8px;
  color: var(--tool-success);
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.tool-result h3 {
  margin-bottom: 18px;
  font-size: 1.45rem;
  line-height: 1.2;
}

.result-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0 0 18px;
}

.result-metrics div {
  padding: 14px;
  border: 1px solid var(--tool-line);
  border-radius: 10px;
  background: #fff;
}

.result-metrics dt {
  color: var(--tool-muted);
  font-size: 0.76rem;
  font-weight: 650;
}

.result-metrics dd {
  margin: 5px 0 0;
  color: var(--tool-ink);
  font-size: 1.18rem;
  font-variant-numeric: tabular-nums;
  font-weight: 760;
}

.result-list {
  display: grid;
  gap: 9px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.result-list li {
  position: relative;
  padding-left: 22px;
  color: var(--tool-ink);
}

.result-list li::before {
  position: absolute;
  top: 0.55em;
  left: 2px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--tool-blue);
  content: "";
}

.result-note {
  margin: 16px 0;
  padding-top: 15px;
  border-top: 1px solid var(--tool-line);
  font-size: 0.86rem;
  line-height: 1.55;
}

.result-actions {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.result-actions .button {
  width: 100%;
  border-radius: 8px;
}

.official-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  color: var(--tool-blue-dark);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.tool-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 30px;
}

.tool-card {
  display: flex;
  min-height: 260px;
  flex-direction: column;
  justify-content: space-between;
  padding: 26px;
  border: 1px solid var(--tool-line);
  border-radius: 14px;
  background: #fff;
  color: var(--tool-ink);
  text-decoration: none;
  transition: border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.tool-card:hover,
.tool-card:focus-visible {
  border-color: var(--tool-blue);
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(7, 23, 37, 0.09);
}

.tool-card span {
  color: var(--tool-blue-dark);
  font-size: 0.76rem;
  font-weight: 760;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.tool-card h3 {
  margin: 14px 0 10px;
  font-size: 1.35rem;
  line-height: 1.25;
}

.tool-card strong {
  margin-top: 20px;
  color: var(--tool-blue-dark);
}

.tool-method {
  margin-top: 36px;
  padding: 24px;
  border-left: 4px solid var(--tool-blue);
  background: var(--tool-soft);
}

@media (max-width: 900px) {
  .tool-intro-grid,
  .tool-shell {
    grid-template-columns: 1fr;
  }

  .tool-result {
    position: static;
  }

  .tool-cards {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .tool-hero {
    min-height: 500px;
  }

  .tool-hero .hero-content {
    padding-bottom: 56px;
  }

  .tool-section,
  .tool-directory {
    padding: 52px 0;
  }

  .tool-form,
  .tool-result {
    padding: 20px 16px;
    border-radius: 12px;
  }

  .tool-result {
    min-height: 0;
  }

  .result-empty {
    min-height: 126px;
  }

  .field-grid,
  .field-grid--three,
  .tool-cards {
    grid-template-columns: 1fr;
  }

  .result-metrics {
    grid-template-columns: 1fr 1fr;
  }

  .tool-card {
    min-height: 210px;
  }
}

@media (max-width: 359px) {
  .result-metrics {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tool-card {
    transition: none;
  }
}