:root {
  --text: #111827;
  --muted: #4b5563;
  --bg: #ffffff;
  --bg-alt: #f7f7f7;
  --border: #e5e7eb;
  --button: #111827;
  --button-hover: #1f2937;
  --radius: 12px;
  --container: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

img {
  max-width: 100%;
  display: block;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

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

.nav a {
  font-size: 14px;
  color: var(--muted);
}

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

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 16px;
  border-radius: 10px;
  background: var(--button);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
}

.header-cta:hover,
.btn-primary:hover {
  background: var(--button-hover);
}

.section {
  padding: 80px 0;
}

.section.alt {
  background: var(--bg-alt);
}

.hero h1,
.page-hero h1 {
  font-size: 48px;
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -0.03em;
  margin: 0;
  max-width: 900px;
}

.hero p,
.page-hero p,
.text-block p,
.card p,
.footer p {
  color: var(--muted);
}

.hero-copy {
  max-width: 760px;
}

.hero-copy p {
  margin-top: 20px;
  font-size: 18px;
  line-height: 1.75;
}

.button-row {
  margin-top: 32px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 20px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
}

.btn-primary {
  background: var(--button);
  color: #fff;
}

.btn-secondary {
  border: 1px solid var(--border);
  color: var(--text);
  background: #fff;
}

.btn-secondary:hover {
  border-color: #cbd5e1;
}

.text-block {
  max-width: 760px;
}

.text-block h2 {
  margin: 0 0 20px;
  font-size: 32px;
  line-height: 1.25;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.text-block p {
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.8;
}

.grid-3,
.grid-2,
.grid-4 {
  display: grid;
  gap: 24px;
  margin-top: 40px;
}

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

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

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.card h3 {
  margin: 0 0 16px;
  font-size: 20px;
  line-height: 1.4;
  font-weight: 600;
}

.card p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
}

.card p:last-child {
  margin-bottom: 0;
}

.simple-list {
  margin: 24px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.simple-list li {
  margin-bottom: 10px;
}

.cta-strip {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  background: #fff;
}

.cta-strip h2 {
  margin: 0 0 16px;
  font-size: 28px;
}

.cta-strip p {
  margin: 0;
  color: var(--muted);
  max-width: 720px;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
}

.footer-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
}

.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.footer-links a {
  font-size: 14px;
  color: var(--muted);
}

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

.footer-meta {
  font-size: 14px;
  color: var(--muted);
}

.footer-copy {
  margin-top: 8px;
  font-size: 12px;
  color: #6b7280;
}

.contact-box {
  display: grid;
  gap: 24px;
  margin-top: 32px;
}

.contact-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.contact-item h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.contact-item p {
  margin: 0;
  color: var(--muted);
}

@media (max-width: 980px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .nav {
    display: none;
  }

  .hero h1,
  .page-hero h1 {
    font-size: 40px;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 56px 0;
  }

  .hero h1,
  .page-hero h1 {
    font-size: 34px;
  }

  .text-block h2 {
    font-size: 28px;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .header-cta {
    padding: 0 14px;
  }
}