:root {
  color-scheme: dark;
  --tool-bg: #03111d;
  --tool-band: #071a29;
  --tool-panel: #092238;
  --tool-panel-strong: #0c2b43;
  --tool-line: rgba(123, 211, 255, 0.23);
  --tool-line-strong: rgba(99, 243, 163, 0.42);
  --tool-text: #f3fbff;
  --tool-muted: #a9c0ce;
  --tool-cyan: #3acbff;
  --tool-green: #63f3a3;
  --tool-gold: #ffd166;
  --tool-red: #ff7a91;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--tool-bg);
  color: var(--tool-text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select {
  font: inherit;
  letter-spacing: 0;
}

button,
select,
input[type="range"] {
  cursor: pointer;
}

.tool-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 64px;
  padding: 10px max(18px, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid var(--tool-line);
  background: rgba(3, 17, 29, 0.94);
  backdrop-filter: blur(16px);
}

.tool-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 900;
}

.tool-brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid rgba(58, 203, 255, 0.4);
  border-radius: 8px;
  color: var(--tool-cyan);
  font-size: 18px;
}

.tool-brand b {
  color: var(--tool-cyan);
}

.tool-nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--tool-muted);
  font-size: 13px;
  font-weight: 800;
}

.tool-nav-links a:hover,
.tool-nav-links a[aria-current="page"] {
  color: var(--tool-green);
}

.tool-play-link,
.tool-button {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border: 1px solid var(--tool-line-strong);
  border-radius: 7px;
  background: var(--tool-green);
  color: #03111d;
  font-size: 13px;
  font-weight: 950;
}

.tool-button.secondary {
  border-color: var(--tool-line);
  background: #0a263b;
  color: var(--tool-text);
}

.tool-main {
  width: min(1180px, calc(100% - 36px));
  margin: 0 auto;
  padding: 54px 0 72px;
}

.tool-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
  color: #8da9ba;
  font-size: 12px;
  font-weight: 800;
}

.tool-breadcrumbs a {
  color: var(--tool-green);
}

.tool-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 380px);
  gap: 52px;
  align-items: end;
  padding-bottom: 38px;
}

.tool-intro h1 {
  max-width: 820px;
  margin: 0;
  font-size: 52px;
  line-height: 1.02;
  letter-spacing: 0;
}

.tool-intro p {
  max-width: 720px;
  margin: 18px 0 0;
  color: var(--tool-muted);
  font-size: 17px;
  font-weight: 650;
  line-height: 1.6;
}

.tool-intro-data {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--tool-line);
  border-bottom: 1px solid var(--tool-line);
}

.tool-intro-data span {
  min-height: 78px;
  padding: 14px;
}

.tool-intro-data span + span {
  border-left: 1px solid var(--tool-line);
}

.tool-intro-data strong,
.tool-intro-data small {
  display: block;
}

.tool-intro-data strong {
  color: var(--tool-green);
  font-size: 24px;
}

.tool-intro-data small {
  margin-top: 5px;
  color: var(--tool-muted);
  font-size: 12px;
  font-weight: 750;
}

.tool-switcher {
  display: flex;
  gap: 4px;
  margin: 0 0 20px;
  overflow-x: auto;
  border-bottom: 1px solid var(--tool-line);
}

.tool-switcher a {
  flex: 0 0 auto;
  padding: 12px 14px;
  border-bottom: 2px solid transparent;
  color: var(--tool-muted);
  font-size: 13px;
  font-weight: 850;
}

.tool-switcher a:hover,
.tool-switcher a[aria-current="page"] {
  border-bottom-color: var(--tool-green);
  color: var(--tool-text);
}

.tool-workspace {
  display: grid;
  grid-template-columns: minmax(290px, 0.8fr) minmax(0, 1.35fr);
  gap: 16px;
  align-items: start;
}

.tool-panel {
  border: 1px solid var(--tool-line);
  border-radius: 8px;
  background: var(--tool-panel);
}

.tool-panel-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--tool-line);
  background: var(--tool-panel-strong);
}

.tool-panel-header h2,
.tool-panel-header h3 {
  margin: 0;
  font-size: 18px;
  line-height: 1.25;
}

.tool-panel-header p {
  margin: 6px 0 0;
  color: var(--tool-muted);
  font-size: 13px;
  line-height: 1.5;
}

.tool-form {
  display: grid;
  gap: 16px;
  padding: 20px;
}

.tool-form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

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

.tool-field > span,
.tool-field legend {
  color: #dcecf5;
  font-size: 12px;
  font-weight: 850;
}

.tool-field select,
.tool-field input[type="search"],
.tool-field input[type="number"] {
  width: 100%;
  min-height: 43px;
  padding: 0 12px;
  border: 1px solid rgba(123, 211, 255, 0.28);
  border-radius: 6px;
  outline: none;
  background: #041522;
  color: var(--tool-text);
  font-size: 14px;
  font-weight: 700;
}

.tool-field select:focus,
.tool-field input:focus {
  border-color: var(--tool-cyan);
  box-shadow: 0 0 0 3px rgba(58, 203, 255, 0.13);
}

.tool-field input[type="range"] {
  width: 100%;
  accent-color: var(--tool-green);
}

.tool-range-value {
  color: var(--tool-gold);
  font-size: 13px;
  font-weight: 900;
}

.tool-segments {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 5px;
}

.tool-segments label {
  position: relative;
  min-width: 0;
}

.tool-segments input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.tool-segments span {
  display: grid;
  min-height: 42px;
  place-items: center;
  padding: 6px;
  border: 1px solid var(--tool-line);
  border-radius: 6px;
  color: var(--tool-muted);
  font-size: 12px;
  font-weight: 850;
  text-align: center;
}

.tool-segments input:checked + span {
  border-color: var(--tool-line-strong);
  background: rgba(99, 243, 163, 0.12);
  color: var(--tool-green);
}

.tool-results {
  min-width: 0;
}

.tool-result-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-bottom: 1px solid var(--tool-line);
}

.tool-result-summary > div {
  min-width: 0;
  min-height: 92px;
  padding: 17px;
}

.tool-result-summary > div + div {
  border-left: 1px solid var(--tool-line);
}

.tool-result-summary small,
.tool-result-summary strong,
.tool-result-summary span {
  display: block;
}

.tool-result-summary small {
  color: var(--tool-muted);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}

.tool-result-summary strong {
  margin-top: 6px;
  color: var(--tool-green);
  font-size: 22px;
  line-height: 1.1;
  overflow-wrap: anywhere;
}

.tool-result-summary span {
  margin-top: 5px;
  color: #c7dae5;
  font-size: 12px;
}

.tool-table-wrap {
  overflow-x: auto;
}

.tool-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.tool-table th,
.tool-table td {
  padding: 13px 16px;
  border-bottom: 1px solid rgba(123, 211, 255, 0.13);
  text-align: left;
  vertical-align: middle;
}

.tool-table th {
  background: rgba(3, 17, 29, 0.6);
  color: #8eabba;
  font-size: 10px;
  font-weight: 900;
  text-transform: uppercase;
}

.tool-table td {
  color: #dcebf3;
  font-weight: 680;
}

.tool-table tbody tr:hover {
  background: rgba(58, 203, 255, 0.06);
}

.tool-table strong,
.tool-table small {
  display: block;
}

.tool-table strong {
  color: #fff;
}

.tool-table small {
  margin-top: 3px;
  color: var(--tool-muted);
  font-size: 11px;
}

.tool-positive {
  color: var(--tool-green) !important;
}

.tool-warning {
  color: var(--tool-gold) !important;
}

.tool-negative {
  color: var(--tool-red) !important;
}

.tool-recommendation {
  padding: 20px;
}

.tool-recommendation h3 {
  margin: 0;
  font-size: 20px;
}

.tool-recommendation p {
  margin: 8px 0 0;
  color: var(--tool-muted);
  font-size: 14px;
  line-height: 1.6;
}

.tool-recommendation-list {
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.tool-recommendation-list li {
  padding: 11px 0;
  border-top: 1px solid rgba(123, 211, 255, 0.13);
  color: #dcebf3;
  font-size: 13px;
  font-weight: 700;
}

.tool-filter-bar {
  display: grid;
  grid-template-columns: minmax(220px, 1.4fr) minmax(150px, 0.8fr) minmax(150px, 0.8fr);
  gap: 12px;
  padding: 18px;
  border-bottom: 1px solid var(--tool-line);
}

.tool-count {
  padding: 12px 18px;
  border-bottom: 1px solid rgba(123, 211, 255, 0.13);
  color: var(--tool-muted);
  font-size: 12px;
  font-weight: 800;
}

.tool-hub-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 12px;
}

.tool-card {
  display: grid;
  min-height: 220px;
  align-content: space-between;
  gap: 24px;
  padding: 24px;
  border: 1px solid var(--tool-line);
  border-radius: 8px;
  background: var(--tool-panel);
}

.tool-card:hover {
  border-color: var(--tool-line-strong);
  background: var(--tool-panel-strong);
}

.tool-card-index {
  color: var(--tool-gold);
  font-size: 12px;
  font-weight: 950;
}

.tool-card h2 {
  margin: 0;
  font-size: 27px;
}

.tool-card p {
  margin: 10px 0 0;
  color: var(--tool-muted);
  font-size: 14px;
  line-height: 1.55;
}

.tool-card-action {
  color: var(--tool-green);
  font-size: 13px;
  font-weight: 900;
}

.tool-note {
  margin-top: 18px;
  padding: 14px 0;
  border-top: 1px solid var(--tool-line);
  color: var(--tool-muted);
  font-size: 12px;
  line-height: 1.55;
}

.tool-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 24px max(18px, calc((100vw - 1180px) / 2));
  border-top: 1px solid var(--tool-line);
  background: #020c14;
  color: #89a5b4;
  font-size: 12px;
  font-weight: 700;
}

.tool-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.tool-footer a:hover {
  color: var(--tool-green);
}

.tool-empty {
  padding: 32px 20px;
  color: var(--tool-muted);
  text-align: center;
}

@media (max-width: 900px) {
  .tool-nav-links {
    display: none;
  }

  .tool-intro,
  .tool-workspace {
    grid-template-columns: 1fr;
  }

  .tool-intro {
    gap: 28px;
  }

  .tool-intro h1 {
    font-size: 42px;
  }

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

  .tool-filter-bar .tool-field:first-child {
    grid-column: 1 / -1;
  }
}

@media (max-width: 620px) {
  .tool-nav {
    min-height: 58px;
  }

  .tool-brand span:not(.tool-brand-mark) {
    display: none;
  }

  .tool-play-link {
    min-height: 38px;
    padding: 0 12px;
  }

  .tool-main {
    width: min(100% - 24px, 1180px);
    padding: 34px 0 54px;
  }

  .tool-intro h1 {
    font-size: 34px;
  }

  .tool-intro p {
    font-size: 15px;
  }

  .tool-hub-grid,
  .tool-form-row,
  .tool-filter-bar {
    grid-template-columns: 1fr;
  }

  .tool-filter-bar .tool-field:first-child {
    grid-column: auto;
  }

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

  .tool-result-summary > div + div {
    border-top: 1px solid var(--tool-line);
    border-left: 0;
  }

  .tool-table th,
  .tool-table td {
    padding: 12px;
    white-space: nowrap;
  }

  .tool-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}