:root {
  --blue: #1a56db;
  --blue-dark: #1543ad;
  --blue-bright: #2f6bff;
  --blue-soft: #eef3ff;
  --blue-tint: #f7faff;
  --white: #ffffff;
  --ink: #16203a;
  --body: #4a5670;
  --muted: #7b869c;
  --border: #e9edf5;
  --shadow-sm: 0 4px 16px rgba(26, 86, 219, 0.06);
  --shadow: 0 14px 40px rgba(26, 86, 219, 0.10);
  --shadow-lg: 0 24px 60px rgba(26, 86, 219, 0.16);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  font-family: "Mona Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--white);
  color: var(--body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  color: var(--ink);
  letter-spacing: -0.025em;
  line-height: 1.12;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 3rem;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--ink);
  text-decoration: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nav a {
  padding: 0.55rem 1.1rem;
  color: var(--body);
  text-decoration: none;
  font-size: 0.96rem;
  font-weight: 600;
  border-radius: 10px;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav a:hover {
  color: var(--blue);
  background: var(--blue-soft);
}

.nav .nav-cta {
  color: var(--white);
  background: var(--blue);
  box-shadow: var(--shadow-sm);
}

.nav .nav-cta:hover {
  background: var(--blue-dark);
  color: var(--white);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.9rem;
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.98rem;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
  background: var(--blue);
  color: var(--white);
  box-shadow: var(--shadow);
}

.btn-primary:hover {
  background: var(--blue-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-ghost {
  background: var(--white);
  color: var(--blue);
  border: 1.5px solid var(--border);
}

.btn-ghost:hover {
  border-color: var(--blue-bright);
  color: var(--blue-dark);
  transform: translateY(-2px);
}

/* Hero */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 84vh;
  padding: 6rem 1.5rem 4rem;
  background:
    radial-gradient(720px circle at 85% 0%, var(--blue-soft), transparent 55%),
    radial-gradient(620px circle at 10% 30%, #f0f6ff, transparent 50%),
    var(--white);
  overflow: hidden;
}

.hero-inner {
  max-width: 50rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--blue-dark);
  background: var(--white);
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.8rem;
}

.eyebrow .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #16c784;
  box-shadow: 0 0 0 4px rgba(22, 199, 132, 0.18);
}

.hero h1 {
  font-size: clamp(2.4rem, 6.5vw, 4.4rem);
  font-weight: 800;
}

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

.tagline {
  margin: 1.6rem auto 2.6rem;
  max-width: 38rem;
  color: var(--body);
  font-size: 1.18rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Stats band */
.stats-band {
  background: var(--blue);
  background: linear-gradient(120deg, var(--blue), var(--blue-bright));
}

.stats-inner {
  max-width: 70rem;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  padding: 2.5rem 2rem;
}

.stat {
  text-align: center;
  color: var(--white);
}

.stat-num {
  display: block;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.stat-label {
  display: block;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.85);
  margin-top: 0.25rem;
}

/* Sections */
.section {
  max-width: 70rem;
  margin: 0 auto;
  padding: 6.5rem 2rem;
}

.section-alt {
  background: var(--blue-tint);
  max-width: none;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-alt > * {
  max-width: 70rem;
  margin-left: auto;
  margin-right: auto;
}

.section-head {
  margin-bottom: 3rem;
  max-width: 40rem;
}

.section-tag {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--blue);
  background: var(--blue-soft);
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.section-tag.light {
  color: var(--white);
  background: rgba(255, 255, 255, 0.18);
}

.section h2 {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  font-weight: 800;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-text p {
  font-size: 1.08rem;
  margin-bottom: 1.1rem;
}

.cards {
  display: grid;
  gap: 1rem;
}

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.4rem 1.6rem;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--blue-soft);
}

.card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.card p {
  color: var(--body);
  font-size: 0.98rem;
}

/* Timeline */
.timeline {
  list-style: none;
  position: relative;
  padding-left: 1.6rem;
  max-width: 46rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--blue-bright), var(--blue-soft));
}

.timeline li {
  position: relative;
  padding: 0 0 1.6rem 1.8rem;
}

.timeline li:last-child {
  padding-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -1.6rem;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--blue);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 3px var(--blue-soft);
}

.timeline-content {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.4rem 1.7rem;
  box-shadow: var(--shadow-sm);
}

.role {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
}

.company {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--blue);
  margin: 0.25rem 0 0.6rem;
}

.timeline-content p {
  margin-bottom: 0;
  font-size: 1rem;
}

/* Contact */
.contact-card {
  background: linear-gradient(125deg, var(--blue-dark), var(--blue-bright));
  color: var(--white);
  border-radius: 24px;
  padding: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  box-shadow: var(--shadow-lg);
}

.contact-copy h2 {
  color: var(--white);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 0.4rem 0 0.7rem;
}

.contact-copy p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.1rem;
  max-width: 34rem;
}

.contact-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.contact-card .btn-primary {
  background: var(--white);
  color: var(--blue-dark);
}

.contact-card .btn-primary:hover {
  background: var(--blue-soft);
}

.contact-card .btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.55);
}

.contact-card .btn-ghost:hover {
  border-color: var(--white);
  color: var(--white);
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 2.5rem 1.5rem;
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
}

/* Responsive */
@media (max-width: 860px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
  .stats-inner {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
}

@media (max-width: 600px) {
  .site-header {
    padding: 0.85rem 1.25rem;
  }
  .nav a {
    padding: 0.5rem 0.65rem;
    font-size: 0.88rem;
  }
  .section {
    padding: 4.5rem 1.5rem;
  }
  .contact-card {
    padding: 2.25rem;
  }
}