<style>
    .header {
      width: 100%;
      position: fixed;
      top: 0;
      left: 0;
      background: #fff;
      box-shadow: 0 4px 10px rgba(0,0,0,0.05);
      z-index: 1000;
    }
    .header .container {
      max-width: 1200px;
      margin: auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 16px 24px;
    }
    .logo-block { display: flex; align-items: center; }
    .logo-img {
      max-height: 40px;
      width: auto;
      display: block;
      object-fit: contain;
    }
    .nav { display: flex; gap: 28px; }
    .nav a {
      text-decoration: none;
      font-weight: 600;
      font-size: 16px;
      color: #334155;
      transition: color 0.3s ease;
    }
    .nav a:hover { color: #0ea5e9; }
    .btn-header {
      background: linear-gradient(90deg, #0ea5e9, #6366f1);
      color: #fff;
      padding: 10px 22px;
      border-radius: 999px;
      font-size: 15px;
      font-weight: 600;
      text-decoration: none;
      box-shadow: 0 4px 10px rgba(0,0,0,0.12);
      transition: transform 0.2s;
    }
    .btn-header:hover { transform: scale(1.05); }
    .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
    .hamburger span { width: 26px; height: 3px; background: #0f172a; border-radius: 3px; }
    @media(max-width: 900px) {
      .nav {
        position: absolute;
        top: 64px;
        right: 0;
        background: #fff;
        flex-direction: column;
        gap: 18px;
        width: 220px;
        padding: 24px;
        box-shadow: 0 8px 18px rgba(0,0,0,0.15);
        display: none;
      }
      .nav.show { display: flex; }
      .btn-header { display: none; }
      .hamburger { display: flex; }
      .logo-img { max-height: 30px; }
    }
    /* Actions on the right side of header */
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.profile-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 2px solid #334155;
  transition: 0.3s;
}

.profile-icon:hover {
  background: #f1f5f9;
  border-color: #0ea5e9;
}

</style>