:root {
  --bg: #071019;
  --panel: #0d1824;
  --panel2: #101f2d;
  --ink: #f4f8fb;
  --muted: #95a7b7;
  --line: #233545;
  --green: #00e093;
  --blue: #2196ff;
  --amber: #ffb020;
  --red: #ff5c6c;
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.28);
  --radius: 20px;
  --max: 1120px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background:
    radial-gradient(circle at 80% 0, rgba(33, 150, 255, 0.12), transparent 30%),
    var(--bg);
  color: var(--ink);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.5;
}
a {
  color: inherit;
}
.wrap {
  max-width: var(--max);
  margin: auto;
  padding: 0 20px;
}
.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 12px;
  top: 12px;
  background: white;
  color: #111;
  padding: 10px;
  z-index: 99;
}
header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(7, 16, 25, 0.88);
  backdrop-filter: blur(18px);
}
.navbar {
  height: 68px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 850;
  letter-spacing: -0.03em;
}
.logo {
  width: 37px;
  height: 37px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: #001d13;
  background: linear-gradient(135deg, var(--green), #8affd0);
  font-weight: 950;
  box-shadow: 0 10px 24px rgba(0, 224, 147, 0.18);
}
nav {
  margin-left: auto;
  display: flex;
  gap: 5px;
  align-items: center;
}
nav a {
  font-size: 13px;
  font-weight: 720;
  text-decoration: none;
  color: #b9c6d1;
  padding: 9px 10px;
  border-radius: 11px;
}
nav a:hover,
nav a.active {
  background: rgba(0, 224, 147, 0.1);
  color: var(--green);
}
.menu {
  display: none;
  margin-left: auto;
  background: var(--panel);
  color: white;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 11px;
}
.hero {
  padding: 60px 0 38px;
}
.eyebrow {
  display: inline-flex;
  padding: 6px 10px;
  border: 1px solid rgba(0, 224, 147, 0.28);
  border-radius: 999px;
  background: rgba(0, 224, 147, 0.08);
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
h1 {
  font-size: clamp(38px, 6vw, 66px);
  line-height: 1.02;
  letter-spacing: -0.055em;
  margin: 16px 0 14px;
  max-width: 850px;
}
.hero p {
  max-width: 760px;
  font-size: 18px;
  color: var(--muted);
  margin: 0;
}
.hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.button,
button.primary {
  border: 0;
  border-radius: 12px;
  padding: 11px 15px;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.button.primary,
button.primary {
  background: var(--green);
  color: #002218;
}
.button.secondary {
  border: 1px solid var(--line);
  background: var(--panel);
  color: white;
}
.button.secondary.preset-active {
  border-color: var(--green);
  background: rgba(0, 224, 147, 0.12);
  box-shadow: 0 0 0 1px rgba(0, 224, 147, 0.18);
}
.condition-guide {
  margin-top: 22px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.025);
}
.condition-guide h2 {
  margin: 0 0 6px;
  font-size: 18px;
}
.condition-guide > p,
.condition-definitions p {
  color: var(--muted);
}
.condition-guide > p {
  margin: 0;
}
.condition-guide .hero-actions {
  margin-top: 14px;
}
.condition-definitions {
  display: grid;
  gap: 7px;
  margin-top: 15px;
}
.condition-definitions p {
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
}
.condition-definitions strong {
  color: white;
}
.section {
  padding: 28px 0 52px;
}
.tool-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(330px, 0.95fr);
  gap: 22px;
  align-items: start;
}
.card {
  background: linear-gradient(
    180deg,
    rgba(16, 31, 45, 0.98),
    rgba(11, 24, 35, 0.98)
  );
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.02);
}
.card h2,
.card h3 {
  margin-top: 0;
  letter-spacing: -0.025em;
}
.card-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}
.card-heading h2 {
  margin: 0;
}
.results {
  position: sticky;
  top: 88px;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}
.field.full {
  grid-column: 1/-1;
}
label {
  display: block;
  font-size: 12px;
  color: #b5c1cb;
  font-weight: 750;
  margin: 0 0 6px;
  text-transform: uppercase;
  letter-spacing: 0.045em;
}
.field-help {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
  text-transform: none;
  letter-spacing: 0;
}
input,
select {
  width: 100%;
  background: #08131d;
  border: 1px solid var(--line);
  border-radius: 11px;
  padding: 11px 12px;
  color: white;
  font: inherit;
  outline: none;
}
input:focus,
select:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(0, 224, 147, 0.1);
}
.input-with-unit {
  position: relative;
  display: block;
  min-width: 0;
}
.input-with-unit input {
  padding-right: 49px;
}
.input-unit {
  position: absolute;
  top: 50%;
  right: 10px;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 11px;
  font-weight: 750;
  line-height: 1;
  pointer-events: none;
  white-space: nowrap;
}
.input-with-unit.unit-prefix input {
  padding-left: 26px;
  padding-right: 12px;
}
.input-with-unit.unit-prefix .input-unit {
  left: 12px;
  right: auto;
}
.toggle {
  display: flex;
  background: #08131d;
  border: 1px solid var(--line);
  padding: 4px;
  border-radius: 12px;
}
.toggle button {
  flex: 1;
  border: 0;
  border-radius: 9px;
  padding: 9px;
  background: transparent;
  color: var(--muted);
  font-weight: 800;
  cursor: pointer;
}
.toggle button.on {
  background: var(--green);
  color: #002218;
}
.range-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 112px;
  gap: 10px;
  align-items: center;
}
.range-row input[type="range"] {
  padding: 0;
}
.range-row input[type="number"] {
  appearance: textfield;
  -moz-appearance: textfield;
}
.range-row input[type="number"]::-webkit-inner-spin-button,
.range-row input[type="number"]::-webkit-outer-spin-button {
  margin: 0;
  -webkit-appearance: none;
}

.temperature-results {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 24px;
  margin-top: 8px;
}
details {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  margin-top: 16px;
}
summary {
  cursor: pointer;
  font-weight: 800;
}
.metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 11px;
  margin-top: 15px;
}
.metric {
  background: #08131d;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
}
.metric .label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 800;
}
.metric .value {
  font:
    800 23px ui-monospace,
    SFMono-Regular,
    Menlo,
    monospace;
  margin-top: 3px;
}
.hero-result {
  background: linear-gradient(
    135deg,
    rgba(0, 224, 147, 0.13),
    rgba(33, 150, 255, 0.09)
  );
  border: 1px solid rgba(0, 224, 147, 0.28);
  border-radius: 17px;
  padding: 18px;
}
.hero-result .value {
  font:
    900 clamp(30px, 5vw, 47px) ui-monospace,
    SFMono-Regular,
    Menlo,
    monospace;
  color: var(--green);
  letter-spacing: -0.05em;
}
.hero-result .sub {
  color: var(--muted);
}
.notice {
  margin-top: 12px;
  border-radius: 13px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  color: #d6e0e8;
}
.notice.good {
  border-color: rgba(0, 224, 147, 0.36);
  background: rgba(0, 224, 147, 0.07);
}
.notice.warn {
  border-color: rgba(255, 176, 32, 0.4);
  background: rgba(255, 176, 32, 0.07);
}
.notice.bad {
  border-color: rgba(255, 92, 108, 0.42);
  background: rgba(255, 92, 108, 0.07);
}
.battery {
  height: 34px;
  border: 2px solid #668093;
  border-radius: 9px;
  padding: 3px;
  position: relative;
  margin: 16px 0 22px;
}
.battery:after {
  content: "";
  position: absolute;
  right: -8px;
  top: 9px;
  width: 6px;
  height: 13px;
  border-radius: 0 3px 3px 0;
  background: #668093;
}
.battery-fill {
  height: 100%;
  border-radius: 5px;
  background: linear-gradient(90deg, var(--blue), var(--green));
  transition: width 0.3s;
}
.bar {
  height: 12px;
  border-radius: 999px;
  background: #08131d;
  overflow: hidden;
  margin: 8px 0;
}
.bar span {
  display: block;
  height: 100%;
  background: var(--green);
}
.breakdown {
  display: grid;
  gap: 9px;
  margin-top: 14px;
}
.line {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: #c5d0d9;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
  padding-bottom: 8px;
}
.page-title {
  padding: 42px 0 22px;
}
.page-title h1 {
  font-size: clamp(34px, 5vw, 52px);
  margin-bottom: 10px;
}
.page-intro {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 18px;
}
.breadcrumbs {
  font-size: 12px;
  color: var(--muted);
}
.profile-note {
  border: 1px solid rgba(33, 150, 255, 0.35);
  background: rgba(33, 150, 255, 0.07);
  padding: 13px;
  border-radius: 13px;
  color: #cde6ff;
}
footer {
  border-top: 1px solid var(--line);
  padding: 32px 0;
  color: var(--muted);
  font-size: 13px;
  margin-top: 35px;
}
footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 25px;
}
.fine {
  max-width: 720px;
}
.footer-links {
  max-width: 420px;
}
.footer-links a,
footer a {
  color: var(--text);
  text-underline-offset: 3px;
}
.footer-links a:hover,
footer a:hover {
  color: var(--green);
}
.privacy-settings {
  appearance: none;
  border: 0;
  padding: 0;
  background: none;
  color: var(--text);
  font: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}
.privacy-settings:hover {
  color: var(--green);
}
.consent-banner {
  position: fixed;
  z-index: 1000;
  right: 20px;
  bottom: 20px;
  left: 20px;
  display: flex;
  max-width: 1050px;
  margin: auto;
  padding: 20px;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #0d1824;
  box-shadow: 0 16px 50px rgb(0 0 0 / 45%);
}
.consent-banner[hidden] {
  display: none;
}
.consent-banner p {
  margin: 6px 0 0;
  color: var(--muted);
}
.consent-banner a {
  color: var(--green);
}
.consent-actions {
  display: flex;
  flex: 0 0 auto;
  gap: 10px;
}
.policy {
  max-width: 850px;
}
.policy h2 {
  margin-top: 32px;
}
.policy h3 {
  margin-top: 24px;
}
.policy li {
  margin: 8px 0;
}
.policy .notice {
  margin: 20px 0;
}
.policy a,
.profile-note a {
  color: var(--green);
  text-underline-offset: 3px;
}
.seo-content {
  border-top: 1px solid var(--line);
  background: #08131e;
}
.seo-content .wrap {
  max-width: 960px;
}
.seo-content h2 {
  margin: 0 0 14px;
  font-size: clamp(26px, 4vw, 36px);
}
.seo-content h3 {
  margin: 28px 0 8px;
  font-size: 21px;
}
.seo-content p,
.seo-content li {
  color: var(--muted);
  line-height: 1.7;
}
.seo-content a {
  color: var(--green);
  text-underline-offset: 3px;
}
.seo-content-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 40px;
}
.seo-content details {
  margin-top: 12px;
}
.seo-content summary {
  font-weight: 700;
}
@media (max-width: 900px) {
  .tool-grid {
    grid-template-columns: 1fr;
  }
  .results {
    position: static;
  }
  nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 12px;
    right: 12px;
    background: #0d1824;
    border: 1px solid var(--line);
    border-radius: 15px;
    padding: 8px;
    flex-direction: column;
    align-items: stretch;
  }
  .menu {
    display: block;
  }
  nav.open {
    display: flex;
  }
}
@media (max-width: 600px) {
  .form-grid,
  .metrics {
    grid-template-columns: 1fr;
  }
  .field.full {
    grid-column: auto;
  }
  .card-heading {
    align-items: flex-start;
    flex-direction: column;
  }
  h1 {
    font-size: 40px;
  }
  .hero {
    padding-top: 38px;
  }
  footer .wrap {
    flex-direction: column;
  }
  .consent-banner {
    align-items: stretch;
    flex-direction: column;
  }
  .consent-actions {
    justify-content: stretch;
  }
  .consent-actions button {
    flex: 1;
  }
  .seo-content-grid {
    grid-template-columns: 1fr;
  }
}