:root {
  --bg: #f0f9ff;
  --card-bg: #ffffff;
  --accent: #4fc3f7;
  --text: #0277bd;
  --shadow: 0 6px 20px rgba(79, 195, 247, 0.4);
  --glow: 0 0 12px rgba(79, 195, 247, 0.6);
}

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

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  padding: 0;
  margin: 0;
}

.hero {
  text-align: center;
  padding: 2.5rem 1rem;
  background: linear-gradient(135deg, #e1f5fe, #b3e5fc);
  border-bottom: 2px solid var(--accent);
}

.hero h1 {
  font-size: 2.4rem;
  margin-bottom: 0.5rem;
  text-shadow: var(--glow);
}

.subtitle {
  font-size: 1.1rem;
  opacity: 0.85;
}

main {
  max-width: 900px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 1.8rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
  border: 1px solid rgba(79, 195, 247, 0.2);
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 28px rgba(79, 195, 247, 0.5);
}

.card h2 {
  margin-bottom: 1rem;
  color: var(--accent);
  font-size: 1.5rem;
}

.card ul {
  padding-left: 1.2rem;
}

.card li {
  margin-bottom: 0.6rem;
}

.contact-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 1.4rem;
  background: linear-gradient(135deg, #e3f2fd, #bbdefb);
  color: var(--text);
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  box-shadow: var(--glow);
  transition: all 0.3s ease;
  border: 2px solid var(--accent);
}

.contact-btn:hover {
  background: linear-gradient(135deg, #bbdefb, #90caf9);
  transform: scale(1.05);
  box-shadow: 0 0 16px rgba(79, 195, 247, 0.8);
}

.tool-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.tool-link {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1rem;
  background: linear-gradient(135deg, #e3f2fd, #bbdefb);
  color: var(--text);
  text-decoration: none;
  border-radius: 10px;
  font-weight: 600;
  transition: all 0.3s ease;
  border: 1px solid var(--accent);
  box-shadow: 0 4px 8px rgba(79, 195, 247, 0.3);
}

.tool-link:hover {
  background: linear-gradient(135deg, #bbdefb, #90caf9);
  transform: translateY(-3px);
  box-shadow: var(--glow);
}

footer {
  text-align: center;
  padding: 1.5rem;
  color: #546e7a;
  font-size: 0.9rem;
  border-top: 1px solid #e0f7fa;
}

/* Адаптив */
@media (max-width: 600px) {
  .hero h1 { font-size: 1.8rem; }
  .card { padding: 1.2rem; }
  .contact-btn { width: 100%; justify-content: center; }
}