:root {
  --blue: #3B8DE8;
  --blue-deep: #0F2A47;
  --blue-pale: #EAF3FE;
  --ink: #10202F;
  --ink-soft: #5A6B7D;
  --white: #FFFFFF;
  --line: #DCE7F3;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
ul { margin: 0; padding: 0; list-style: none; }

/* ---------- Topbar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: flex; align-items: center; }
.brand-logo {
  height: 46px;
  display: block;
  filter: drop-shadow(0 2px 6px rgba(59,141,232,0.25));
  transition: transform 0.2s ease;
}
.brand:hover .brand-logo { transform: scale(1.04); }
.brand-fallback { font-family: var(--font-display); font-weight: 700; font-size: 1.25rem; color: var(--blue-deep); }
.topbar-nav {
  display: flex;
  gap: 28px;
  flex: 1;
  justify-content: center;
}
.topbar-nav a {
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--ink-soft);
  transition: color 0.2s ease;
}
.topbar-nav a:hover { color: var(--blue-deep); }
.topbar-cta {
  background: var(--blue-deep);
  color: var(--white);
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  transition: background 0.2s ease;
}
.topbar-cta:hover { background: var(--blue); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  max-width: 1180px;
  margin: 0 auto;
  padding: 88px 32px 96px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
  overflow: hidden;
}
.hero-content { position: relative; z-index: 2; }
.hero-eyebrow {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--blue);
  font-weight: 600;
  margin: 0 0 18px;
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 4.2vw, 3.4rem);
  line-height: 1.08;
  font-weight: 700;
  color: var(--blue-deep);
  margin: 0 0 22px;
}
.hero-title-accent { color: var(--blue); }
.hero-sub {
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 46ch;
  margin: 0 0 34px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn-primary {
  background: var(--blue-deep);
  color: var(--white);
  padding: 14px 28px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.98rem;
  display: inline-block;
  transition: transform 0.15s ease, background 0.2s ease;
}
.btn-primary:hover { background: var(--blue); transform: translateY(-1px); }
.btn-secondary {
  border: 1.5px solid var(--line);
  color: var(--blue-deep);
  padding: 14px 28px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.98rem;
  display: inline-block;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.btn-secondary:hover { border-color: var(--blue); background: var(--blue-pale); }
.btn-large { padding: 16px 34px; font-size: 1.05rem; }

/* Hero visual: building blocks animation */
.hero-visual {
  position: relative;
  z-index: 1;
  height: 420px;
}
#build-svg { width: 100%; height: 100%; overflow: visible; }
.blk {
  fill: var(--blue-pale);
  stroke: var(--blue);
  stroke-width: 1.5;
  transform-origin: center;
  opacity: 0;
}
.conn {
  stroke: var(--line);
  stroke-width: 2;
  opacity: 0;
}
.orbit-dot {
  fill: var(--blue);
  opacity: 0;
}
.orbit-dot.animate {
  opacity: 0.55;
  animation: orbit 8s linear infinite;
}
.orbit-dot.d2 { animation-duration: 11s; animation-direction: reverse; }

@keyframes orbit {
  from { transform: rotate(0deg) translateX(230px) rotate(0deg); }
  to   { transform: rotate(360deg) translateX(230px) rotate(-360deg); }
}

@keyframes riseIn {
  0% { opacity: 0; transform: translateY(24px) scale(0.9); }
  100% { opacity: 1; transform: translateY(0) scale(1); }
}
.blk.animate { animation: riseIn 0.6s cubic-bezier(.2,.8,.2,1) forwards; }
.conn.animate { animation: fadeIn 0.5s ease forwards; }
@keyframes fadeIn { to { opacity: 1; } }

/* ---------- Pain section ---------- */
.pain { background: var(--blue-deep); padding: 88px 32px; }
.pain-inner { max-width: 1100px; margin: 0 auto; }
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  color: var(--white);
  text-align: center;
  margin: 0 0 56px;
  font-weight: 600;
}
.pain-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 40px;
  align-items: start;
}
.pain-divider {
  width: 1px;
  align-self: stretch;
  background: rgba(255,255,255,0.15);
}
.pain-label {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 22px;
}
.pain-without .pain-label { color: #9FB4CC; }
.pain-with .pain-label { color: var(--blue); }
.pain-list li {
  color: rgba(255,255,255,0.82);
  padding: 12px 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.98rem;
  line-height: 1.5;
}
.pain-without .pain-list li { position: relative; padding-left: 22px; }
.pain-without .pain-list li::before { content: "–"; position: absolute; left: 0; color: #6E85A0; }
.pain-with .pain-list li { position: relative; padding-left: 22px; }
.pain-with .pain-list li::before { content: "+"; position: absolute; left: 0; color: var(--blue); font-weight: 700; }

/* ---------- Services ---------- */
.services { max-width: 1140px; margin: 0 auto; padding: 100px 32px; }
.services-title { color: var(--blue-deep); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.service-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px 22px;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
.service-card:hover {
  border-color: var(--blue);
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(59,141,232,0.12);
}
.service-icon {
  width: 44px;
  height: 44px;
  color: var(--blue);
  margin-bottom: 18px;
}
.service-icon svg { width: 100%; height: 100%; }
.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.08rem;
  color: var(--blue-deep);
  margin: 0 0 10px;
  font-weight: 600;
}
.service-card p {
  font-size: 0.92rem;
  color: var(--ink-soft);
  line-height: 1.55;
  margin: 0;
}

/* ---------- How it works ---------- */
.how { max-width: 1100px; margin: 0 auto; padding: 96px 32px; background: var(--blue-pale); border-radius: 24px; }
.how .section-title { color: var(--blue-deep); margin-bottom: 52px; }
.how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.how-item {
  position: relative;
  padding: 28px 22px 22px;
  background: var(--white);
  border-radius: 12px;
}
.how-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--blue-deep);
  color: var(--white);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 16px;
}
.how-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--blue-deep);
  margin: 0 0 10px;
}
.how-text { color: var(--ink-soft); font-size: 0.96rem; line-height: 1.55; margin: 0; }

/* ---------- FAQ ---------- */
.faq { max-width: 800px; margin: 0 auto; padding: 96px 32px; }
.faq .section-title { color: var(--blue-deep); margin-bottom: 40px; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 22px;
}
.faq-item summary {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--blue-deep);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 1.3rem;
  color: var(--blue);
  transition: transform 0.2s ease;
  margin-left: 12px;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  margin: 14px 0 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ---------- CTA final ---------- */
.cta-final {
  background: var(--blue-pale);
  text-align: center;
  padding: 96px 32px;
}
.cta-final-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.4vw, 2.3rem);
  color: var(--blue-deep);
  margin: 0 0 14px;
  font-weight: 700;
}
.cta-final-sub { color: var(--ink-soft); margin: 0 0 32px; font-size: 1.02rem; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding: 56px 32px 28px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 32px;
}
.footer-brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--blue-deep);
}
.footer-tagline {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin: 10px 0 0;
  max-width: 30ch;
}
.footer-links, .footer-legal {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a, .footer-legal a {
  color: var(--ink-soft);
  font-size: 0.92rem;
  transition: color 0.2s ease;
}
.footer-links a:hover, .footer-legal a:hover { color: var(--blue-deep); }
.footer-copy {
  max-width: 1100px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.82rem;
  text-align: center;
}

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .topbar-nav { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 56px; }
  .hero-visual { height: 260px; order: -1; }
  .pain-grid { grid-template-columns: 1fr; }
  .pain-divider { display: none; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .how { border-radius: 0; }
  .how-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .blk, .conn, .orbit-dot { animation: none !important; opacity: 1; }
  .reveal { opacity: 1; transform: none; transition: none; }
}