:root {
  --bg: #eff6ff;
  --card: #ffffff;
  --muted: #1e3a8a;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --navy: #172554;
  --accent-light: #dbeafe;
  --border: #e0e7ff;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #dc2626;
  --text: #1f2937;
  --subtle: #6b7280;
  --radius: 10px;
  --radius-sm: 6px;
  --container: 1000px;
  --gap: 1rem;
  --shadow-sm: 0 1px 2px rgba(15, 18, 32, 0.03);
  --shadow-md: 0 6px 18px rgba(15, 18, 32, 0.04);
  --transition: all 0.2s ease;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(219, 234, 254, 0.95), transparent 34rem),
    linear-gradient(180deg, #eff6ff 0%, #f8fbff 46%, #eff6ff 100%);
  color: var(--muted);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--accent);
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0.85rem 1rem;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, var(--navy), #1d3a64);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.12);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1rem;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 700;
  font-size: 1.45rem;
  color: #ffffff;
  text-decoration: none;
  letter-spacing: -0.3px;
}

.brand::before {
  content: "";
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 999px;
  background: #60a5fa;
  box-shadow: 0 0 0 4px rgba(96, 165, 250, 0.18);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.site-nav a {
  color: #dbeafe;
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  padding: 0.35rem 0.55rem;
  border-radius: 999px;
}

.site-nav a:hover,
.site-nav a:focus {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.12);
  text-decoration: none;
}

.hero {
  margin: 1.2rem 0 0.75rem;
  padding: 2.5rem 1rem;
  text-align: center;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0));
}

.hero h1,
.page-hero h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--navy);
  margin: 0 0 0.75rem;
  line-height: 1.2;
}

.hero h1 {
  font-size: 1.9rem;
}

.hero-subtitle,
.page-intro {
  font-size: 0.98rem;
  color: var(--muted);
  margin: 0 auto 0.5rem;
  font-weight: 500;
  max-width: 720px;
}

.hero-description,
.section-intro,
.page-description {
  font-size: 0.9rem;
  color: var(--subtle);
  margin: 0 auto;
  max-width: 700px;
  line-height: 1.6;
}

.page-hero {
  margin: 1rem 0 1rem;
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #ffffff, #f8fbff);
  box-shadow: var(--shadow-sm);
}

.trust-strip {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin: 0 auto 1.5rem;
  color: #1e3a8a;
  font-size: 0.88rem;
  font-weight: 600;
}

.trust-strip span {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--accent-light);
  border-radius: 999px;
  padding: 0.35rem 0.7rem;
  box-shadow: var(--shadow-sm);
}

.breadcrumb {
  display: inline-flex;
  margin: 1rem 0 0;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}

.breadcrumb:hover {
  text-decoration: underline;
}

.section {
  margin: 1.75rem 0;
}

.tools-section {
  margin: 1.75rem 0;
}

.section h2,
.tools-section h2 {
  font-size: 1.5rem;
  color: var(--navy);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin: 0.75rem 0 1.5rem;
}

.tile {
  background: var(--card);
  border: 1px solid var(--accent-light);
  padding: 1rem;
  text-align: left;
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  min-height: 8.25rem;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.035);
  transition: var(--transition);
  font-family: inherit;
  text-decoration: none;
}

.tile-title {
  font-weight: 600;
  color: var(--navy);
  font-size: 1.02rem;
}

.tile-desc {
  font-size: 0.85rem;
  color: var(--subtle);
  line-height: 1.4;
}

.tile:hover,
.tile:focus {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.12);
  border-color: var(--accent);
  background: #f8fbff;
  outline: none;
}

.tile:hover .tile-title,
.tile:focus .tile-title {
  color: var(--accent-dark);
}

.tile:hover .tile-desc,
.tile:focus .tile-desc {
  color: #334155;
}

.tile.disabled {
  cursor: default;
  opacity: 0.72;
}

.tile.disabled:hover,
.tile.disabled:focus {
  transform: none;
  border-color: var(--accent-light);
  box-shadow: var(--shadow-sm);
}

.badge {
  align-self: flex-start;
  background: #e0f2fe;
  color: #075985;
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  font-size: 0.75rem;
  font-weight: 700;
}

.panel {
  background: linear-gradient(180deg, white, #f9fafc);
  border: 1px solid var(--border);
  padding: 1.15rem;
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.045);
  margin-bottom: 1rem;
}

.panel h2,
.panel h3 {
  color: var(--navy);
  margin-top: 0;
}

.panel > p {
  color: var(--subtle);
  margin-bottom: 0.85rem;
  line-height: 1.6;
}

.form-inline {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.75rem;
  align-items: end;
  margin-top: 1rem;
}

fieldset {
  border: none;
  padding: 0;
  margin: 0;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.85rem;
  align-items: start;
}

.form-section {
  padding-top: 1.15rem;
  margin-top: 1.15rem;
  border-top: 1px solid var(--border);
}

legend {
  color: var(--navy);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.form-group,
.form-inline label {
  display: flex;
  flex-direction: column;
}

label {
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 500;
  gap: 0.25rem;
}

input,
select {
  padding: 0.66rem 0.72rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: white;
  font-size: 0.95rem;
  color: var(--muted);
  transition: var(--transition);
}

input:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.field-helper {
  font-size: 0.8rem;
  color: var(--subtle);
  margin: 0;
  font-weight: 400;
  line-height: 1.4;
}

.checkbox-label {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.checkbox-label input {
  width: auto;
}

.form-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-top: 1.15rem;
}

button,
.button {
  background: var(--accent);
  color: white;
  border: 0;
  padding: 0.68rem 1.05rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex;
}

button:hover,
.button:hover {
  background: var(--accent-dark);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

button:active {
  transform: scale(0.98);
}

.results {
  margin-top: 1.15rem;
  background: linear-gradient(180deg, #ffffff, #f9fafc);
  border-radius: var(--radius-sm);
  padding: 1rem;
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  color: var(--muted);
  line-height: 1.6;
}

.results:empty {
  display: none;
}

.results strong {
  color: var(--navy);
}

.info-box {
  margin-top: 0.9rem;
  background: linear-gradient(180deg, #f0f9ff, #eff6ff);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
  border: 1px solid var(--accent-light);
  border-left: 4px solid var(--accent);
  font-size: 0.9rem;
  color: #1e3a8a;
  line-height: 1.6;
}

.info-box h3 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  color: var(--navy);
  font-size: 1rem;
}

.info-box ol,
.info-box ul {
  margin: 0.5rem 0;
  padding-left: 1.5rem;
}

.info-box li {
  margin-bottom: 0.3rem;
}

.result-disclaimer {
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
  color: #64748b;
  font-size: 0.82rem;
  line-height: 1.5;
}

.result-disclaimer strong {
  color: #475569;
}

.content-page {
  max-width: 760px;
}

.content-page p,
.content-page li {
  color: var(--text);
  line-height: 1.7;
}

.related-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0;
  list-style: none;
}

.related-list a {
  display: inline-flex;
  padding: 0.5rem 0.75rem;
  background: #ffffff;
  border: 1px solid var(--accent-light);
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}

.related-list a:hover,
.related-list a:focus {
  background: #eff6ff;
  border-color: var(--accent);
  text-decoration: none;
}

.site-footer {
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, #f9fafc, #f3f4f6);
  padding: 1.5rem 0;
  margin-top: 1.5rem;
  text-align: center;
}

.footer-main {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 0.5rem;
  font-weight: 500;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-bottom: 0.6rem;
}

.footer-links a {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
}

.footer-disclaimer {
  color: #9ca3af;
  font-size: 0.85rem;
  margin: 0;
}

.hidden {
  display: none;
}

@media (max-width: 640px) {
  .site-header .container {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
  }

  .site-nav {
    gap: 0.65rem;
  }

  .hero h1,
  .page-hero h1 {
    font-size: 1.5rem;
  }

  .hero h1 {
    font-size: 1.45rem;
  }

  .hero {
    margin-top: 0.75rem;
    padding: 1.5rem 0.75rem;
  }

  .section,
  .tools-section {
    margin: 1.35rem 0;
  }

  .grid {
    gap: 0.75rem;
  }

  .form-inline,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .panel {
    padding: 1rem;
  }

  button,
  .button {
    width: 100%;
    justify-content: center;
  }

  .form-actions {
    flex-direction: column;
  }
}