:root {
  --primary: #0f172a;
  --primary-light: #1e293b;
  --accent: #2563eb;
  --accent-light: #38bdf8;
  --text: #1f2937;
  --muted: #64748b;
  --bg: #f8fafc;
  --white: #ffffff;
  --border: #e2e8f0;
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.10);
  --radius: 18px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.navbar {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.logo {
  color: var(--white);
  text-decoration: none;
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.logo span {
  color: var(--accent-light);
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-links a {
  color: #dbeafe;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.65rem 0.9rem;
  border-radius: 999px;
  transition: 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(56, 189, 248, 0.14);
  color: var(--white);
}

.menu-toggle,
.menu-icon {
  display: none;
}

.hero {
  min-height: 78vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 5rem 1.5rem;
  color: var(--white);
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.32), transparent 35%),
    linear-gradient(135deg, #020617 0%, #0f172a 48%, #1d4ed8 100%);
}

.hero-content {
  max-width: 850px;
}

.eyebrow {
  display: inline-block;
  color: var(--accent-light);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  margin-bottom: 0.9rem;
}

.eyebrow.dark {
  color: var(--accent);
}

.hero h1,
.page-header h1 {
  font-size: clamp(2.25rem, 5vw, 4.5rem);
  line-height: 1.08;
  letter-spacing: -0.05em;
  margin-bottom: 1.2rem;
}

.hero p,
.page-header p {
  font-size: 1.15rem;
  max-width: 720px;
  margin: 0 auto 1.6rem;
  color: #dbeafe;
}

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

.btn {
  display: inline-block;
  background: var(--accent-light);
  color: #082f49;
  padding: 0.9rem 1.35rem;
  border: 0;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 12px 28px rgba(56, 189, 248, 0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(56, 189, 248, 0.34);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow: none;
}

.page-header {
  background:
    radial-gradient(circle at top right, rgba(56, 189, 248, 0.20), transparent 35%),
    linear-gradient(135deg, #0f172a, #1e293b);
  color: var(--white);
  text-align: center;
  padding: 5rem 1.5rem;
}

.section,
.contact-layout,
.blog-grid,
.cards {
  max-width: 1180px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.intro-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 2rem;
  align-items: center;
  background: var(--white);
  padding: 2.2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.section h2,
.contact-info h2 {
  color: var(--primary);
  font-size: 2rem;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.content-section {
  background: var(--white);
  padding: 2.2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.content-section h2:not(:first-child) {
  margin-top: 1.7rem;
}

.cards,
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

.card,
.blog-card,
.contact-info,
.contact-form {
  background: var(--white);
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card {
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover,
.blog-card:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.35);
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 46px;
  height: 34px;
  padding: 0 0.7rem;
  background: #dbeafe;
  color: var(--accent);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 900;
  margin-bottom: 1rem;
}

.card h3,
.blog-card h2 {
  color: var(--primary);
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

.blog-card a {
  display: inline-block;
  margin-top: 1rem;
  color: var(--accent);
  font-weight: 800;
  text-decoration: none;
}

.post-date {
  color: var(--accent);
  font-weight: 800;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.check-list {
  list-style: none;
  display: grid;
  gap: 0.75rem;
}

.check-list li {
  padding-left: 1.8rem;
  position: relative;
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 900;
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 1.5rem;
  align-items: start;
}

.contact-info a {
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

label {
  font-weight: 800;
  color: var(--primary);
}

input,
textarea {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1px solid #cbd5e1;
  border-radius: 12px;
  font-size: 1rem;
  font-family: inherit;
  outline: none;
}

input:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.note {
  font-size: 0.9rem;
  color: var(--muted);
}

.cta-section {
  max-width: 1000px;
  margin: 3rem auto;
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--white);
  border-radius: 26px;
  background: linear-gradient(135deg, #1d4ed8, #0f172a);
  box-shadow: var(--shadow);
}

.cta-section h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.15;
  margin-bottom: 1rem;
}

.cta-section p {
  max-width: 680px;
  margin: 0 auto 1.5rem;
  color: #dbeafe;
}

.site-footer {
  text-align: center;
  padding: 1.4rem;
  background: #020617;
  color: #cbd5e1;
  margin-top: 3rem;
}

@media (max-width: 820px) {
  .navbar {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .menu-icon {
    display: block;
    color: var(--white);
    font-size: 1.75rem;
    cursor: pointer;
    margin-left: auto;
  }

  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
    padding-top: 1rem;
  }

  .nav-links a {
    display: block;
    text-align: center;
  }

  .menu-toggle:checked ~ .nav-links {
    display: flex;
  }

  .intro-grid,
  .contact-layout,
  .cards,
  .blog-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 68vh;
  }

  .page-header {
    padding: 4rem 1.25rem;
  }
}