/* ===== БАЗОВЫЕ НАСТРОЙКИ ===== */
:root {
  /* Цвета */
  --bg-page: #ffffff;
  --bg-card: #f8f9fa;
  --bg-hover: #eef1f5;
  
  --text-primary: #1a1a22;
  --text-secondary: #4a4a5a;
  --text-muted: #6b7280;
  
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --border: #e5e7eb;
  
  /* Отступы и радиусы */
  --radius: 12px;
  --shadow: 0 2px 8px rgba(0,0,0,0.04);
  --shadow-hover: 0 4px 16px rgba(0,0,0,0.08);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== ШАПКА И НАВИГАЦИЯ ===== */
header {
  padding: 32px 0 24px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

.site-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  display: block;
  margin-bottom: 4px;
}

.site-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
}

nav {
  display: flex;
  gap: 16px;
  margin-top: 20px;
  flex-wrap: wrap;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 6px 4px;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

nav a:hover,
nav a.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ===== КАРТОЧКИ И СЕКЦИИ ===== */
.section {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
  border: 1px solid var(--border);
}

.section-title {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

/* ===== ПРОЕКТЫ ===== */
.project-card {
  display: block;
  padding: 20px;
  margin-bottom: 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: all 0.2s;
}

.project-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.project-card h3 {
  font-size: 1.15rem;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.project-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 8px;
}

.project-link {
  color: var(--accent);
  font-size: 0.9rem;
  text-decoration: none;
}

.project-link:hover { text-decoration: underline; }

/* ===== СПИСКИ ===== */
.benefits li,
.conditions li {
  margin-bottom: 10px;
  padding-left: 24px;
  position: relative;
  color: var(--text-secondary);
}

.benefits li::before,
.conditions li::before {
  content: "✓";
  color: var(--accent);
  font-weight: 600;
  position: absolute;
  left: 0;
}

/* ===== КНОПКИ И ССЫЛКИ ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  padding: 12px 24px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: background 0.2s;
  border: none;
  cursor: pointer;
}

.btn:hover { background: var(--accent-hover); }

.link {
  color: var(--accent);
  text-decoration: none;
}

.link:hover { text-decoration: underline; }

/* ===== КОНТАКТЫ ===== */
.contact-item {
  margin-bottom: 12px;
  color: var(--text-secondary);
}

.contact-item strong {
  color: var(--text-primary);
  display: block;
  margin-bottom: 2px;
}

/* ===== ПОДВАЛ ===== */
footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  padding: 40px 0 24px;
  border-top: 1px solid var(--border);
  margin-top: 40px;
}

/* ===== МОБИЛЬНАЯ АДАПТАЦИЯ ===== */
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  header { padding: 24px 0 20px; }
  .site-title { font-size: 1.3rem; }
  nav { gap: 12px; }
  nav a { font-size: 0.9rem; }
  .section { padding: 20px; }
  .section-title { font-size: 1.2rem; }
}