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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: #f5f7fa;
  line-height: 1.5;
  color: #1e293b;
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr 4fr 1fr;
  gap: 24px;
  max-width: 1600px;
  margin: -15vh auto 0;
  padding: 0 24px 60px;
  position: relative;
  z-index: 10;
}

@media (max-width: 768px) {
  .content-grid {
    grid-template-columns: 1fr;
    margin-top: -10vh;
  }
  .banner-left,
  .banner-right {
    display: none;
  }
}

    /* Временные стили для баннеров, если нет отдельного файла */
    .banner-left, .banner-right {
      background: #f1f5f9;
      border-radius: 24px;
      min-height: 300px;
      display: flex;
      align-items: center;
      justify-content: center;
      color: #64748b;
      font-weight: 500;
      padding: 20px;
      text-align: center;
      box-shadow: 0 8px 20px rgba(0,0,0,0.05);
    }

        .auth-form {
            max-width: 400px;
            margin: 100px auto;
            background: white;
            padding: 30px;
            border-radius: 24px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }
        .auth-form h2 { margin-bottom: 20px; }
        .auth-form input { width: 100%; padding: 12px; margin-bottom: 15px; border: 1px solid #ddd; border-radius: 12px; }
        .auth-form button { width: 100%; padding: 12px; background: #2563eb; color: white; border: none; border-radius: 12px; font-weight: 600; cursor: pointer; }
        .error { color: red; margin-bottom: 15px; }
        .success { color: green; margin-bottom: 15px; }
        .tabs { display: flex; gap: 10px; margin-bottom: 20px; }
        .tab { flex: 1; text-align: center; padding: 10px; background: #f1f5f9; border-radius: 40px; cursor: pointer; }
        .tab.active { background: #2563eb; color: white; }
        .tab-content { display: none; }
        .tab-content.active { display: block; }

.banner-left, .banner-right {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.banner-left img, .banner-right img {
    width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.05);
    transition: transform 0.2s;
}
.banner-left img:hover, .banner-right img:hover {
    transform: translateY(-4px);
}
.mobile-call-btn {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background: #2563eb;
    border-radius: 50%;
    box-shadow: 0 8px 20px rgba(37,99,235,0.3);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, box-shadow 0.2s;
}
.mobile-call-btn img {
    width: 30px;
    height: 30px;
}
.mobile-call-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 28px rgba(37,99,235,0.4);
}
@media (max-width: 768px) {
    .mobile-call-btn {
        display: flex;
    }
}