.project-container {
      max-width: 900px;
      margin: auto;
      background: #fff;
      border-radius: 8px;
      padding: 30px;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }
    .project-header {
      text-align: center;
      margin-bottom: 30px;
    }
    .project-header h1 {
      margin-bottom: 10px;
      font-size: 2rem;
      color: #2563eb;
    }
    .thumbnail {
      max-width: 300px;
      margin: 0 auto 20px;
      display: block;
      border-radius: 6px;
    }
    .big-file {
      max-width: 100%;
      margin: 20px 0;
      display: block;
      border-radius: 6px;
      box-shadow: 0 1px 5px rgba(0,0,0,0.2);
    }
    .content-block {
      margin-bottom: 20px;
    }
    .content-block h2 {
      font-size: 1.4rem;
      margin-bottom: 8px;
      color: #0f172a;
    }
    .content-block p {
      font-size: 1rem;
      line-height: 1.6;
      color: #444;
    }
    a.back-link {
      display: inline-block;
      margin-top: 20px;
      text-decoration: none;
      color: #2563eb;
    }



    .project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  /* background: var(--color-dark); */
  padding: 25px 40px;
  border-radius: 10px;
  box-shadow: 0 1px 5px rgba(0,0,0,0.2);
  color: #444;
  margin-bottom: 30px;
}

.project-header h1 {
  font-size: 1.8rem;
  font-weight: 600;
  margin: 0;
}

.btn-contact {
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  padding: 12px 25px;
  border-radius: 30px;
  font-weight: 500;
  transition: all 0.3s ease;
}

.btn-contact:hover {
  background: var(--color-btn-hover);
  box-shadow: 0 5px 15px rgba(37,99,235,0.4);
}

/* Responsive */
@media (max-width: 768px) {
  .project-header {
    flex-direction: column;
    text-align: center;
    gap: 15px;
  }
  .btn-contact {
    width: 100%;
    text-align: center;
  }
}



.project-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 30px;
  padding: 25px 40px;
  border-radius: 10px;
  box-shadow: 0 1px 5px rgba(0,0,0,0.2);
}

.project-footer .back-link {
  color: #2563eb;
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 0.3s ease;
  margin-top: 0;
}

.project-footer .back-link:hover{
  text-decoration: underline
}

.project-footer .btn-contact {
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  padding: 12px 25px;
  border-radius: 30px;
  font-weight: 500;
  transition: all 0.3s ease;
}

.project-footer .btn-contact:hover {
  background: var(--color-btn-hover);
  box-shadow: 0 5px 15px rgba(37,99,235,0.4);
}

/* Responsive */
@media (max-width: 768px) {
  .project-footer {
    flex-direction: column;
    text-align: center;
    gap: 15px;
  }

  .project-footer .btn-contact {
    width: 100%;
  }
}