:root {
  --bg: #ffffff;
  --bg-raised: #f6f7f9;
  --border: #e5e7eb;
  --text: #12141a;
  --text-dim: #5b616c;
  --text-faint: #9aa0ab;
  --accent: #2f6fed;
  --accent-dim: #c3d4fb;
  --accent-soft: #eef3fe;
  --radius: 10px;
  --max-width: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header.site {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.logo {
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.nav-panel {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 14px;
  color: var(--text-dim);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.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;
}

@media (max-width: 860px) {
  .nav-toggle { display: flex; }

  .nav-panel {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 8px 24px 20px;
    box-shadow: 0 8px 16px rgba(16, 18, 22, 0.06);
  }

  .nav-panel.open { display: flex; }

  .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-links a {
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
  }

  .nav-panel .btn-primary {
    margin-top: 14px;
    width: 100%;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 18px;
  border-radius: 7px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--text);
  color: #ffffff;
}

.btn-primary:hover { background: var(--accent); }

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* Hero */
.hero {
  padding: 120px 0 90px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 20px;
  border: 1px solid var(--accent-dim);
  background: var(--accent-soft);
  padding: 5px 12px;
  border-radius: 100px;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 22px;
  font-weight: 600;
}

.hero h1 .accent { color: var(--accent); }

.hero p.lead {
  font-size: 18px;
  color: var(--text-dim);
  max-width: 640px;
  margin: 0 auto 36px;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Sections */
section {
  padding: 90px 0;
  border-bottom: 1px solid var(--border);
}

section:last-of-type { border-bottom: none; }

.section-head {
  max-width: 620px;
  margin: 0 0 52px;
}

.section-head .kicker {
  font-size: 13px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 12px;
  font-weight: 600;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.01em;
  margin: 0 0 14px;
  font-weight: 600;
}

.section-head p {
  color: var(--text-dim);
  font-size: 16px;
  margin: 0;
}

/* Cards grid */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr; }
}

.card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 1px 2px rgba(16, 18, 22, 0.04);
}

.card .num {
  font-size: 13px;
  color: var(--text-faint);
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.card h3 {
  font-size: 18px;
  margin: 0 0 10px;
  font-weight: 600;
}

.card p {
  color: var(--text-dim);
  font-size: 15px;
  margin: 0;
}

/* Process steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #ffffff;
}

@media (max-width: 860px) {
  .steps { grid-template-columns: 1fr; }
}

.step {
  padding: 30px 26px;
  border-right: 1px solid var(--border);
}

.step:last-child { border-right: none; }

@media (max-width: 860px) {
  .step { border-right: none; border-bottom: 1px solid var(--border); }
  .step:last-child { border-bottom: none; }
}

.step .tag {
  font-size: 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 10px;
  font-weight: 600;
}

.step h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 600;
}

.step p {
  color: var(--text-dim);
  font-size: 14.5px;
  margin: 0;
}

/* Why list */
.why-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 40px;
}

@media (max-width: 700px) {
  .why-list { grid-template-columns: 1fr; }
}

.why-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  color: var(--text-dim);
  font-size: 15px;
}

.why-list li .mark {
  color: var(--accent);
  flex-shrink: 0;
  font-weight: 600;
}

.why-list li strong {
  color: var(--text);
  font-weight: 600;
  display: block;
  margin-bottom: 2px;
}

/* Contact */
.contact-box {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px;
  text-align: center;
}

.contact-box h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: 0 0 14px;
  font-weight: 600;
}

.contact-box p {
  color: var(--text-dim);
  max-width: 480px;
  margin: 0 auto 30px;
}

/* Footer */
footer.site {
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--text-faint);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a:hover { color: var(--text-dim); }

/* Section CTA */
.section-cta {
  display: flex;
  justify-content: center;
  margin-top: 40px;
}

/* Use-case link strip */
.usecase-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 40px;
}

@media (max-width: 860px) {
  .usecase-strip { grid-template-columns: 1fr; }
}

.usecase-strip a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  background: #ffffff;
}

.usecase-strip a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.usecase-strip .num {
  font-size: 12px;
  color: var(--text-faint);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

/* Page intro (non-stub inner pages) */
.page-intro {
  padding: 100px 0 80px;
  text-align: center;
}

.page-intro .eyebrow { margin-bottom: 20px; }

.page-intro h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin: 0 0 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.page-intro p {
  color: var(--text-dim);
  max-width: 640px;
  margin: 0 auto;
  font-size: 16px;
}

.page-intro a {
  color: var(--accent);
}

.page-intro a:hover {
  text-decoration: underline;
}

/* Offering detail sections */
.offering .section-head { margin-bottom: 36px; }

.offering-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 40px;
}

@media (max-width: 700px) {
  .offering-list { grid-template-columns: 1fr; }
}

.offering-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  color: var(--text-dim);
  font-size: 15px;
}

.offering-list li .mark {
  color: var(--accent);
  flex-shrink: 0;
  font-weight: 600;
}

/* Stub pages */
.stub {
  padding: 130px 0 140px;
  text-align: center;
}

.stub .eyebrow { margin-bottom: 20px; }

.stub h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin: 0 0 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.stub p {
  color: var(--text-dim);
  max-width: 520px;
  margin: 0 auto 30px;
  font-size: 16px;
}