:root {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --ink: #16202f;
  --muted: #5f6d7c;
  --line: #dbe4ee;
  --hero: #0f2730;
  --hero-2: #143743;
  --accent: #20c997;
  --accent-dark: #0d9f76;
  --shadow: 0 16px 50px rgba(16, 24, 40, 0.08);
  --radius-xl: 28px;
  --radius-lg: 18px;
  --radius-md: 14px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Plus Jakarta Sans", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.72;
}

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

p {
  margin: 0;
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
}

.narrow {
  width: min(calc(100% - 2rem), 860px);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-mark {
  width: 2.65rem;
  height: 2.65rem;
  display: grid;
  place-items: center;
  border-radius: 0.9rem;
  background: linear-gradient(135deg, var(--hero), var(--hero-2));
  color: #fff;
  font-weight: 800;
}

.brand-text {
  display: grid;
}

.brand-text strong,
.hero h1,
.page-hero h1,
.section-heading h2,
.article-card h2,
.cta-banner h2,
.bottom-line h2,
.site-footer h2 {
  font-family: "Fraunces", Georgia, serif;
}

.brand-text small,
.eyebrow,
.microcopy,
.card-label {
  color: var(--muted);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.site-nav a {
  font-weight: 600;
  font-size: 0.95rem;
}

.nav-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.95rem 1.35rem;
  font-weight: 700;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button:hover,
.nav-cta:hover {
  transform: translateY(-2px);
}

.nav-cta,
.button-primary {
  background: linear-gradient(135deg, var(--accent), #36d6a8);
  color: #08211a;
  box-shadow: 0 14px 28px rgba(32, 201, 151, 0.24);
}

.button-secondary {
  background: #ffffff;
  color: var(--ink);
  border: 1px solid var(--line);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 999px;
  padding: 0.75rem 1rem;
  font: inherit;
  font-weight: 700;
}

.hero {
  background: linear-gradient(135deg, var(--hero), var(--hero-2));
  color: #f3f7fb;
}

.hero-split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2rem;
  align-items: center;
  padding: 4.75rem 0 4rem;
}

.hero h1,
.page-hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.15rem);
  line-height: 1.06;
  margin: 0.4rem 0 1rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 800;
}

.hero .eyebrow,
.hero .microcopy {
  color: rgba(243, 247, 251, 0.72);
}

.hero-lead,
.page-hero p {
  font-size: 1.08rem;
  color: rgba(243, 247, 251, 0.86);
}

.rating-row {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.1rem 0 1.5rem;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.stars {
  color: #ffd76b;
  letter-spacing: 0.1em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 1.3rem 0 1rem;
}

.hero-actions.center {
  justify-content: center;
}

.microcopy {
  max-width: 60ch;
  font-size: 0.95rem;
}

.hero-visual {
  display: grid;
  gap: 1rem;
}

.visual-window,
.hero-note,
.article-card,
.info-card,
.step-card,
.panel,
.faq-item,
.cta-banner,
.bottom-line,
.mini-stats article,
.table-wrap {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.visual-window {
  padding: 1rem;
  background: linear-gradient(180deg, #163842, #133039);
  border-color: rgba(255, 255, 255, 0.08);
}

.visual-topbar {
  display: flex;
  gap: 0.45rem;
  margin-bottom: 1rem;
}

.visual-topbar span {
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.28);
}

.agent-map {
  display: grid;
  gap: 0.85rem;
}

.agent-node,
.agent-chip {
  background: rgba(255, 255, 255, 0.92);
  color: var(--ink);
  border-radius: 14px;
  padding: 0.8rem 0.9rem;
  text-align: center;
  font-weight: 700;
}

.node-primary {
  background: linear-gradient(135deg, #36d6a8, #7ae3c5);
  color: #07261d;
}

.agent-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.agent-row.compact {
  grid-template-columns: repeat(3, 1fr);
}

.agent-chip {
  font-size: 0.88rem;
  padding: 0.65rem 0.7rem;
  font-weight: 600;
}

.hero-note {
  padding: 1rem 1.1rem;
  background: rgba(255, 255, 255, 0.96);
  color: var(--ink);
}

.hero-note strong {
  display: block;
  margin-bottom: 0.35rem;
}

.toc-strip {
  padding: 1.25rem 0 0.5rem;
}

.mini-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.mini-stats article {
  padding: 1rem 1.1rem;
}

.mini-stats span {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 0.25rem;
}

.mini-stats strong {
  display: block;
  font-size: 1rem;
}

.toc-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  padding: 1rem 0 0.25rem;
}

.toc-nav a {
  padding: 0.65rem 0.95rem;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  font-weight: 600;
  font-size: 0.92rem;
}

.content-section {
  padding: 1.25rem 0 3rem;
}

.tight-top {
  padding-top: 0.25rem;
}

.content-body {
  width: min(100%, 900px);
}

.article-card,
.cta-banner,
.bottom-line {
  padding: 1.7rem;
}

.inline-cta {
  margin-top: 1.5rem;
  padding: 1.35rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #ffffff, #f0fbf7);
  border: 1px solid var(--line);
}

.article-card h2,
.cta-banner h2,
.bottom-line h2 {
  font-size: clamp(2rem, 4vw, 2.7rem);
  line-height: 1.15;
  margin: 0 0 1rem;
}

.article-card h3,
.info-card h3,
.step-card h3,
.panel h3,
.faq-item h3,
.site-footer h3 {
  margin: 0 0 0.65rem;
  font-size: 1.1rem;
}

.article-card p + p {
  margin-top: 1rem;
}

.section-heading {
  margin-bottom: 1rem;
}

.section-heading h2 {
  margin: 0.35rem 0 0;
  font-size: clamp(2rem, 4vw, 2.9rem);
  line-height: 1.14;
}

.quick-points {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.4rem 0;
}

.quick-points article {
  padding: 1rem;
  border-radius: var(--radius-md);
  background: var(--surface-soft);
  border: 1px solid var(--line);
}

.quick-points h3 {
  margin: 0 0 0.45rem;
  font-size: 1rem;
}

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

.info-card,
.step-card,
.panel,
.faq-item {
  padding: 1.25rem;
}

.article-spaced {
  margin-top: 1rem;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.step-card span {
  width: 2.1rem;
  height: 2.1rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(32, 201, 151, 0.14);
  color: var(--accent-dark);
  font-weight: 800;
  margin-bottom: 0.85rem;
}

.cta-banner,
.bottom-line {
  text-align: center;
}

.cta-banner {
  background: linear-gradient(135deg, #ffffff, #f0fbf7);
}

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

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}

.comparison-table th,
.comparison-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.comparison-table th {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.split-panels {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.panel ul,
.site-footer ul {
  margin: 0;
  padding-left: 1.1rem;
}

.panel-positive {
  border-top: 4px solid var(--accent);
}

.panel-negative {
  border-top: 4px solid #f97373;
}

.faq-list {
  display: grid;
  gap: 1rem;
}

.page-hero {
  background: linear-gradient(135deg, var(--hero), var(--hero-2));
  color: #f3f7fb;
}

.page-hero .narrow {
  padding: 4rem 0 2rem;
}

.site-footer {
  padding: 0 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.75fr 0.8fr;
  gap: 1rem;
  padding: 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.footer-note {
  padding-top: 1rem;
  color: var(--muted);
}

@media (max-width: 980px) {
  .hero-split,
  .mini-stats,
  .steps-grid,
  .split-panels,
  .footer-grid,
  .info-grid,
  .quick-points {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: calc(100% + 0.4rem);
    left: 1rem;
    right: 1rem;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .nav-wrap {
    position: relative;
  }

  .hero-split {
    padding: 3.5rem 0;
  }

  .agent-row,
  .agent-row.compact {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .button,
  .nav-cta {
    width: 100%;
  }

  .article-card,
  .info-card,
  .step-card,
  .panel,
  .faq-item,
  .cta-banner,
  .bottom-line,
  .footer-grid,
  .visual-window,
  .hero-note {
    padding: 1.25rem;
  }

  .hero h1,
  .page-hero h1 {
    font-size: clamp(2.2rem, 10vw, 3.1rem);
  }
}