:root {
  --ink: #102033;
  --muted: #586779;
  --navy: #0b1f33;
  --quickbooks: #2ca01c;
  --quickbooks-blue: #0f5da8;
  --quickbooks-sky: #dff1ff;
  --quickbooks-mint: #e8f8ea;
  --card: #ffffff;
  --line: rgba(11, 31, 51, 0.12);
  --shadow: 0 18px 44px rgba(15, 93, 168, 0.14);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Space Grotesk", "IBM Plex Sans", "Sora", "Manrope", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(900px 560px at 8% -8%, rgba(44, 160, 28, 0.18) 0%, rgba(44, 160, 28, 0.08) 36%, transparent 64%),
    radial-gradient(880px 560px at 92% 0%, rgba(15, 93, 168, 0.22) 0%, rgba(15, 93, 168, 0.08) 38%, transparent 70%),
    linear-gradient(180deg, #f8fcff 0%, #eef7ff 52%, #f3fbf3 100%);
}

main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

.topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.header-home {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.header-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 214px;
  padding: 10px 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(15, 93, 168, 0.12), rgba(44, 160, 28, 0.14));
  color: var(--navy);
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.header-nav,
.footer-links {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.topline a,
.footer-links a {
  color: var(--navy);
  text-decoration: none;
  font-weight: 700;
  font-size: 13px;
}

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

.hero,
.section,
.card,
.callout {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.hero,
.section,
.callout {
  padding: 30px;
  margin-bottom: 24px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 22px;
  align-items: center;
}

.hero-stack {
  display: grid;
  gap: 16px;
}

.hero-panel {
  background: linear-gradient(150deg, rgba(15, 93, 168, 0.12), rgba(44, 160, 28, 0.09));
  border: 1px solid rgba(11, 31, 51, 0.12);
  border-radius: 18px;
  padding: 22px;
}

.hero-panel h3 {
  margin: 0 0 10px;
  color: var(--navy);
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.hero-proof-item {
  display: inline-flex;
  align-items: center;
  padding: 9px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(11, 31, 51, 0.1);
  color: var(--navy);
  font-size: 13px;
  font-weight: 700;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--quickbooks-blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 14px;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.03;
  letter-spacing: -0.03em;
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

h3 {
  margin: 0 0 10px;
  font-size: 19px;
}

.lead,
p,
li {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.65;
}

p,
ul {
  margin: 0 0 14px;
}

ul {
  padding-left: 20px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.cta,
.ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 700;
  text-decoration: none;
}

.cta {
  color: #fff;
  background: var(--quickbooks-blue);
  box-shadow: 0 14px 30px rgba(15, 93, 168, 0.28);
}

.ghost {
  color: var(--navy);
  border: 1px solid rgba(11, 31, 51, 0.22);
  background: rgba(255, 255, 255, 0.76);
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

.card {
  padding: 22px;
}

.feature-list,
.callout-points {
  display: grid;
  gap: 16px;
}

.api-ref-list {
  display: grid;
  gap: 18px;
}

.api-endpoint {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
  padding: 28px;
}

.api-endpoint-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.api-method {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 74px;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  background: var(--quickbooks-blue);
}

.api-method.post {
  background: var(--quickbooks);
}

.api-path {
  font-family: "IBM Plex Mono", "SFMono-Regular", "SF Mono", Consolas, monospace;
  font-size: 15px;
  font-weight: 700;
  color: var(--navy);
  word-break: break-word;
}

.api-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0;
}

.api-meta-card {
  padding: 14px 16px;
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(15, 93, 168, 0.07), rgba(44, 160, 28, 0.07));
  border: 1px solid rgba(11, 31, 51, 0.08);
}

.api-meta-card strong,
.api-section strong {
  color: var(--navy);
}

.api-section {
  margin-top: 18px;
}

.api-section h3 {
  margin: 0 0 10px;
  color: var(--navy);
}

.api-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  background: #fff;
}

.api-table th,
.api-table td {
  text-align: left;
  vertical-align: top;
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.5;
}

.api-table thead th {
  border-top: none;
  background: rgba(15, 93, 168, 0.07);
  color: var(--navy);
  font-weight: 800;
}

.api-table code,
.code-block code,
.inline-code {
  font-family: "IBM Plex Mono", "SFMono-Regular", "SF Mono", Consolas, monospace;
}

.code-block {
  margin: 0;
  padding: 16px 18px;
  border-radius: 18px;
  background: #0d1624;
  color: #f3f8ff;
  overflow-x: auto;
  border: 1px solid rgba(11, 31, 51, 0.12);
}

.code-block code {
  color: inherit;
  font-size: 13px;
  line-height: 1.6;
}

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

.status-item {
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(11, 31, 51, 0.08);
  background: rgba(255, 255, 255, 0.88);
}

.status-item code {
  font-weight: 800;
  color: var(--navy);
}

.feature-item,
.callout-points > div {
  padding: 16px 18px;
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(15, 93, 168, 0.08), rgba(44, 160, 28, 0.08));
  border: 1px solid rgba(11, 31, 51, 0.08);
}

.callout-dark {
  background: linear-gradient(160deg, #0b1f33 0%, #0f5da8 100%);
  color: #fff;
}

.callout-dark h2,
.callout-dark strong,
.callout-dark .eyebrow {
  color: #fff;
}

.callout-dark p {
  color: rgba(255, 255, 255, 0.82);
}

.callout-grid,
.feature-split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 22px;
  align-items: start;
}

.footer {
  display: grid;
  gap: 12px;
  padding-top: 8px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 900px) {
  .hero-grid,
  .feature-split,
  .callout-grid,
  .grid,
  .api-meta {
    grid-template-columns: 1fr;
  }

  .topline {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-logo {
    min-width: auto;
  }
}