:root {
  color-scheme: dark;
  --bg: #080a0d;
  --panel: #10151b;
  --panel-2: #151b22;
  --text: #f4f0e8;
  --muted: #a7b0ba;
  --quiet: #6f7a86;
  --gold: #c8a96a;
  --gold-soft: rgba(200, 169, 106, 0.16);
  --blue: #31a8ff;
  --blue-soft: rgba(49, 168, 255, 0.16);
  --line: rgba(244, 240, 232, 0.1);
  --danger: #ff786d;
  --success: #74dfb4;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.36);
  font-family:
    "Avenir Next", "Helvetica Neue", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 78% 12%, rgba(49, 168, 255, 0.16), transparent 28rem),
    linear-gradient(135deg, rgba(200, 169, 106, 0.08), transparent 28%),
    var(--bg);
  color: var(--text);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 82%);
}

a {
  color: inherit;
}

a:visited {
  color: #b49a5f;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(49, 168, 255, 0.72);
  outline-offset: 3px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

.page {
  overflow: hidden;
}

.hero > *,
.gap,
section:not(.gap) {
  animation: rise-in 520ms ease-out both;
}

.hero > :nth-child(2) {
  animation-delay: 90ms;
}

.gap {
  animation-delay: 140ms;
}

section:not(.gap) {
  animation-delay: 190ms;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.shell {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 0;
}

.brand {
  display: flex;
  align-items: center;
  font-weight: 800;
  letter-spacing: 0;
  text-decoration: none;
  text-transform: lowercase;
}

.brand:visited {
  color: var(--text);
}

.brand-logo {
  display: block;
  width: clamp(150px, 16vw, 210px);
  height: auto;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid rgba(200, 169, 106, 0.46);
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(200, 169, 106, 0.2), rgba(49, 168, 255, 0.08));
  box-shadow: inset 0 0 22px rgba(200, 169, 106, 0.12);
}

.brand-mark::after {
  width: 12px;
  height: 18px;
  content: "";
  border-right: 3px solid var(--gold);
  border-bottom: 3px solid var(--gold);
  transform: skew(-12deg);
}

.nav-links {
  display: flex;
  gap: 18px;
  align-items: center;
  color: var(--muted);
  font-size: 0.92rem;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--gold);
}

.nav-links a[aria-current="page"] {
  color: var(--gold);
  font-weight: 800;
}

.nav-links a:visited {
  color: var(--muted);
}

.nav-links a[aria-current="page"]:visited {
  color: var(--gold);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 1.05fr);
  gap: clamp(32px, 5vw, 70px);
  align-items: center;
  padding: 42px 0 80px;
}

.eyebrow {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 22px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 34px;
  height: 1px;
  content: "";
  background: var(--gold);
}

h1 {
  max-width: 780px;
  font-family: "Iowan Old Style", Georgia, "Times New Roman", serif;
  font-size: clamp(2.55rem, 5vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: 0;
  text-wrap: balance;
}

.subhead {
  max-width: 700px;
  margin-top: 22px;
  color: var(--muted);
  font-size: clamp(1.04rem, 1.5vw, 1.2rem);
  line-height: 1.62;
}

.tool-panel,
.info-card,
.closing-panel {
  border: 1px solid rgba(244, 240, 232, 0.13);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent 34%),
    rgba(15, 20, 26, 0.92);
  box-shadow: var(--shadow);
}

.tool-panel {
  overflow: hidden;
}

.tool-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  color: var(--quiet);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.pulse {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  color: var(--success);
}

.pulse::before {
  width: 8px;
  height: 8px;
  content: "";
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 16px var(--success);
}

.calculator {
  display: grid;
  gap: 22px;
  padding: clamp(20px, 3vw, 32px);
}

.input-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.input-group {
  display: grid;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.025);
}

.input-group-title {
  color: var(--gold);
  font-size: 0.76rem;
  font-weight: 850;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.input-group .field + .field {
  margin-top: 0;
}

.field {
  display: grid;
  gap: 8px;
}

.field label {
  color: var(--muted);
  font-size: 0.9rem;
}

.field input {
  width: 100%;
  min-height: 50px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  outline: 0;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
}

.field input:focus {
  border-color: rgba(200, 169, 106, 0.58);
  box-shadow: 0 0 0 3px rgba(200, 169, 106, 0.12);
}

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

.result-card {
  min-height: 108px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.035);
}

.result-card span {
  display: block;
  color: var(--quiet);
  font-size: 0.82rem;
}

.result-card strong {
  display: block;
  margin-top: 9px;
  color: var(--text);
  font-size: clamp(1.5rem, 3vw, 2.3rem);
  line-height: 1;
}

.result-card small {
  display: block;
  margin-top: 9px;
  color: var(--muted);
  line-height: 1.45;
}

.benchmark {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.chip {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--quiet);
  font-size: 0.78rem;
  font-weight: 750;
}

.chip-good {
  border-color: rgba(116, 223, 180, 0.35);
  color: var(--success);
  background: rgba(116, 223, 180, 0.08);
}

.chip-watch {
  border-color: rgba(200, 169, 106, 0.34);
  color: var(--gold);
  background: rgba(200, 169, 106, 0.1);
}

.chip-risk {
  border-color: rgba(255, 120, 109, 0.32);
  color: var(--danger);
  background: rgba(255, 120, 109, 0.08);
}

.signal-list {
  display: grid;
  gap: 12px;
}

.signal-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.signal-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.signal-row span:first-child {
  color: var(--quiet);
  font-size: 0.82rem;
}

.signal-row strong {
  color: var(--text);
  font-size: 1.05rem;
}

.verdict {
  padding: 18px;
  border: 1px solid rgba(200, 169, 106, 0.28);
  border-radius: 8px;
  background: var(--gold-soft);
  color: var(--muted);
  line-height: 1.6;
}

.verdict strong {
  color: var(--text);
}

.tool-cta {
  display: grid;
  gap: 14px;
  padding: 22px;
  border: 1px solid rgba(49, 168, 255, 0.24);
  border-radius: 8px;
  background: linear-gradient(110deg, rgba(49, 168, 255, 0.12), rgba(200, 169, 106, 0.08));
}

.tool-cta h2 {
  font-size: clamp(1.35rem, 2.4vw, 2rem);
}

.tool-cta p {
  color: var(--muted);
  line-height: 1.6;
}

.cta-form {
  display: grid;
  grid-template-columns: minmax(190px, 1fr) auto;
  gap: 10px;
}

.cta-form input {
  width: 100%;
  min-height: 54px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
  outline: 0;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
}

.cta-form button,
.tool-link {
  min-height: 54px;
  padding: 0 18px;
  border: 0;
  border-radius: 6px;
  background: linear-gradient(135deg, #d4b878, #a98748);
  color: #090a0c;
  cursor: pointer;
  font: inherit;
  font-weight: 850;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: 0 14px 34px rgba(200, 169, 106, 0.2);
  transition:
    transform 180ms ease-out,
    box-shadow 180ms ease-out,
    filter 180ms ease-out;
}

.tool-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.cta-form button:hover,
.tool-link:hover {
  filter: brightness(1.04);
  box-shadow: 0 18px 42px rgba(200, 169, 106, 0.28);
  transform: translateY(-1px);
}

.tool-link:visited {
  color: #090a0c;
}

.bot-field {
  display: none;
}

.form-message {
  min-height: 22px;
  color: var(--quiet);
  font-size: 0.92rem;
}

section {
  padding: 80px 0;
}

.gap {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.018);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  gap: clamp(24px, 5vw, 70px);
  align-items: start;
}

h2 {
  font-family: "Iowan Old Style", Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 4vw, 3.8rem);
  line-height: 1;
  letter-spacing: 0;
  text-wrap: balance;
}

.section-copy {
  color: var(--muted);
  font-size: clamp(1.02rem, 1.5vw, 1.18rem);
  line-height: 1.75;
}

.info-stack {
  display: grid;
  gap: 14px;
}

.info-card {
  padding: 24px;
}

.info-card h3 {
  margin-bottom: 12px;
  font-family: "Iowan Old Style", Georgia, "Times New Roman", serif;
  font-size: 1.15rem;
  line-height: 1.18;
  text-wrap: balance;
}

.info-card p,
.info-card li {
  color: var(--muted);
  line-height: 1.7;
}

.info-card ul {
  display: grid;
  gap: 9px;
  padding-left: 20px;
  margin: 0;
}

.definition-list {
  display: grid;
  gap: 12px;
}

.definition-row {
  display: grid;
  grid-template-columns: minmax(120px, 0.34fr) minmax(0, 1fr);
  gap: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
}

.definition-row h3 {
  margin: 0;
}

.definition-row p {
  color: var(--muted);
  line-height: 1.6;
}

.formula-list {
  display: grid;
  gap: 10px;
}

.formula-row {
  display: grid;
  grid-template-columns: minmax(130px, 0.3fr) minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.025);
}

.formula-row strong {
  color: var(--text);
}

.formula-row span {
  color: var(--muted);
}

.related-tools {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 30px;
}

.related-tools .info-card {
  display: grid;
  gap: 16px;
  align-content: space-between;
}

.closing-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 30px;
  align-items: center;
  padding: clamp(28px, 5vw, 54px);
  border-color: rgba(200, 169, 106, 0.22);
  background:
    linear-gradient(110deg, rgba(200, 169, 106, 0.12), transparent 54%),
    var(--panel);
}

.closing-panel p {
  max-width: 740px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.7;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  padding: 26px 0 40px;
  border-top: 1px solid var(--line);
  color: var(--quiet);
  font-size: 0.88rem;
}

footer a {
  color: var(--gold);
  font-weight: 750;
  text-decoration: none;
}

@media (max-width: 980px) {
  .hero,
  .content-grid,
  .closing-panel {
    grid-template-columns: 1fr;
  }

  .related-tools {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 28px, 1180px);
  }

  .nav {
    align-items: flex-start;
    gap: 14px;
  }

  .nav-links {
    display: grid;
    gap: 8px;
    text-align: right;
  }

  .hero {
    padding-top: 14px;
  }

  .input-grid,
  .results,
  .cta-form,
  .definition-row,
  .formula-row {
    grid-template-columns: 1fr;
  }

  .cta-form button,
  .tool-link {
    width: 100%;
    white-space: normal;
  }

  section {
    padding: 64px 0;
  }

  footer {
    display: grid;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}