:root {
  --bg: #f4f7fb;
  --bg-alt: #edf3f8;
  --card: #ffffff;
  --text: #18324a;
  --muted: #617489;
  --border: #dbe5ee;
  --primary: #1368ce;
  --primary-dark: #0e52a4;
  --accent: #0f8b6d;
  --accent-soft: #e8f7f2;
  --warning-soft: #fff7e8;
  --shadow: 0 18px 40px rgba(18, 44, 74, 0.08);
  --radius: 22px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", "Yu Gothic UI", sans-serif;
  background: linear-gradient(180deg, #f7fbff 0%, #f4f7fb 100%);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.site-header {
  position: static;
  z-index: 1;
  color: #fff;
  background: linear-gradient(135deg, #1368ce 0%, #0e52a4 48%, #0f8b6d 100%);
  border-bottom: 0;
  box-shadow: 0 14px 34px rgba(18, 44, 74, 0.18);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 16px 0;
}

.header-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.header-nav a {
  color: rgba(255, 255, 255, 0.96);
  font-weight: 700;
  font-size: 0.95rem;
}

.site-header .eyebrow,
.site-header h1 {
  color: #fff;
}

.site-header .eyebrow {
  opacity: 0.9;
}

.hero,
.section {
  padding: 38px 0 44px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--primary);
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0 0 10px;
  line-height: 1.25;
}

h1 {
  font-size: clamp(1.9rem, 3vw, 2.7rem);
}

h2 {
  font-size: clamp(1.5rem, 2.4vw, 2.1rem);
}

h3 {
  font-size: 1.12rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
}

.accent-card {
  background: linear-gradient(135deg, #ffffff 0%, #f3f9ff 45%, #effaf6 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 22px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 20px;
}

.hero-points span {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(19, 104, 206, 0.08);
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 0.92rem;
}

.main-layout {
  display: block;
}

.grid-two,
.comparison-grid,
.guide-grid,
.glossary-grid {
  display: grid;
  gap: 20px;
}

.grid-two {
  grid-template-columns: minmax(340px, 0.95fr) minmax(0, 1.05fr);
}

.comparison-grid,
.guide-grid,
.glossary-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.section-heading {
  margin-bottom: 18px;
}

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

label span,
.summary-label,
.card-head p,
.ad-slot p,
.form-message,
.footer-inner,
.stat-card p {
  color: var(--muted);
}

label {
  display: grid;
  gap: 8px;
  font-weight: 700;
  font-size: 0.95rem;
}

input,
select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  font-size: 1rem;
}

input:focus,
select:focus {
  outline: 3px solid rgba(19, 104, 206, 0.15);
  border-color: rgba(19, 104, 206, 0.45);
}

.actions,
.cta-row,
.compare-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.actions {
  margin-top: 18px;
}

.compare-actions {
  margin: 18px 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 0.96rem;
  font-weight: 700;
  transition: transform 0.15s ease, opacity 0.15s ease, background 0.15s ease;
}

.button:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.button.primary {
  background: var(--primary);
  color: #fff;
}

.button.primary:hover {
  background: var(--primary-dark);
}

.button.secondary {
  background: #fff;
  color: var(--text);
  border-color: var(--border);
}

.button.tertiary {
  background: var(--accent-soft);
  color: #0d6d56;
}

.summary-card {
  background: linear-gradient(135deg, #ffffff 0%, #f7fbff 100%);
}

.summary-value {
  margin: 6px 0 0;
  font-size: clamp(1.3rem, 2vw, 1.9rem);
  font-weight: 800;
}

.result-column {
  display: grid;
  gap: 18px;
}

.chart-card canvas {
  width: 100%;
  height: auto;
  margin-top: 4px;
  border-radius: 16px;
  background: linear-gradient(180deg, #fcfdff 0%, #f5f8fb 100%);
}

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.92rem;
}

.legend-swatch {
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 999px;
  margin-right: 8px;
  vertical-align: -2px;
}

.legend-swatch.total {
  background: #1368ce;
}

.legend-swatch.principal {
  background: #0f8b6d;
}

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 8px;
}

.card-head p {
  margin: 0;
  font-size: 0.92rem;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 620px;
}

th,
td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-size: 0.95rem;
}

th {
  background: #f7fbff;
  color: var(--text);
  position: sticky;
  top: 0;
}

.alt-bg {
  background: var(--bg-alt);
}

.feature-list,
.disclaimer-card ul,
.article-list {
  margin: 0;
  padding-left: 20px;
}

.feature-list li,
.disclaimer-card li,
.article-list li {
  margin-bottom: 10px;
}

.ad-slot {
  position: relative;
  display: grid;
  gap: 10px;
  border: 1px dashed rgba(19, 104, 206, 0.36);
  background: linear-gradient(135deg, rgba(19, 104, 206, 0.06), rgba(15, 139, 109, 0.06));
  border-radius: 20px;
  padding: 18px 20px;
  display: none;
}

.ad-label {
  display: inline-flex;
  width: fit-content;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(19, 104, 206, 0.12);
  color: var(--primary-dark);
  font-size: 0.78rem;
  font-weight: 800;
}

.ad-top {
  grid-template-columns: auto 1fr;
  align-items: center;
}

.ad-rectangle,
.ad-sidebar {
  min-height: 220px;
  align-content: start;
}

.ad-inline {
  margin: 20px 0;
}

.contact-box {
  margin-top: 18px;
  padding: 18px;
  border-radius: 16px;
  background: var(--warning-soft);
  border: 1px solid #f3dfb0;
  display: none;
}

.site-footer {
  padding: 24px 0 40px;
  border-top: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.72);
}

.footer-inner {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  font-size: 0.94rem;
  text-align: center;
}

.footer-inner p {
  margin: 0;
  text-align: center;
}

@media (max-width: 1080px) {

  .main-layout,
  .hero-grid,
  .grid-two,
  .comparison-grid,
  .guide-grid,
  .glossary-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {

  .header-inner,
  .card-head,
  .ad-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-inner {
    flex-direction: column;
    align-items: center;
  }

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

  .button {
    width: 100%;
  }

  .container {
    width: min(calc(100% - 20px), var(--container));
  }

  .card {
    padding: 18px;
    border-radius: 18px;
  }
}

@media print {
  body * {
    visibility: hidden !important;
  }

  #printArea,
  #printArea * {
    visibility: visible !important;
  }

  #printArea {
    position: absolute;
    inset: 0 auto auto 0;
    width: 100%;
    padding: 0;
    background: #fff;
  }
}