* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: 'Arial', 'Helvetica', sans-serif;
    background: #ffffff;
    color: #333;
  }
  
  /* PAGE CONTAINER */
  .page-container {
    padding: 8px 12px 32px;
  }
  
/* PAGE HEADER */
.page-header h1 {
    font-size: 32px;
    color: #0c6b3c;
    border-bottom: 2px solid #0c6b3c;
    padding-bottom: 12px;
    margin-bottom: 20px;
  }
  
.product-title {
    font-size: 20px;
    color: #b67b4a;
    font-style: italic;
    margin-bottom: 40px;
}
  
/* ================================
   FORMULAIRE DEVIS – BASE
================================ */

.form-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
  }
  
  /* INTRO */
  .form-intro {
    background: #f5f1e6;
    padding: 20px;
    border-left: 4px solid #0c6b3c;
    border-radius: 6px;
    margin-bottom: 35px;
  }
  
  .form-intro p {
    margin: 0;
    font-size: 15px;
    line-height: 1.6;
    color: #333;
  }
  
  /* ================================
     FORM GRID
  ================================ */
  
  .devis-form {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
  }
  
  .form-group {
    display: flex;
    flex-direction: column;
  }
  
  .form-group.full-width {
    grid-column: 1 / -1;
  }
  
  .form-group label {
    font-size: 14px;
    font-weight: bold;
    color: #0c6b3c;
    margin-bottom: 8px;
  }
  
  .required {
    color: #d9534f;
  }
  
  /* INPUTS */
  .form-group input,
  .form-group textarea {
    padding: 12px;
    font-size: 14px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
    transition: border-color 0.3s ease;
  }
  
  .form-group input:focus,
  .form-group textarea:focus {
    outline: none;
    border-color: #0c6b3c;
  }
  
  .form-group textarea {
    min-height: 120px;
    resize: vertical;
  }
  
  /* ERRORS */
  .error-message {
    display: none;
    margin-top: 5px;
    font-size: 12px;
    color: #d9534f;
  }
  
  .error-message.show {
    display: block;
  }
  
  input.error,
  textarea.error {
    border-color: #d9534f;
  }
  
  /* ================================
     ACTION BUTTONS
  ================================ */
  
  .form-actions {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
  }
  
  .btn-submit,
  .btn-reset {
    padding: 14px 35px;
    font-size: 15px;
    font-weight: bold;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
  }
  
  .btn-submit {
    background: #0c6b3c;
    color: #fff;
  }
  
  .btn-submit:hover {
    background: #095530;
  }
  
  .btn-reset {
    background: #6c757d;
    color: #fff;
  }
  
  .btn-reset:hover {
    background: #5a6268;
  }
  
  /* ================================
     SUCCESS MESSAGE
  ================================ */
  
  .success-message {
    text-align: center;
    padding: 50px 30px;
    background: #e8f4ed;
    border: 2px solid #0c6b3c;
    border-radius: 10px;
  }
  
  .success-icon {
    width: 70px;
    height: 70px;
    background: #0c6b3c;
    color: #fff;
    font-size: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
  }
  
  .success-message h3 {
    color: #0c6b3c;
    font-size: 22px;
    margin-bottom: 10px;
  }
  
  .success-message p {
    font-size: 14px;
    color: #333;
  }
  
  /* ================================
     RESPONSIVE
  ================================ */
  
  /* TABLET */
  @media (max-width: 768px) {
    .devis-form {
      grid-template-columns: 1fr;
    }
  
    .form-actions {
      flex-direction: column;
    }
  
    .btn-submit,
    .btn-reset {
      width: 100%;
    }
  }
  
  /* MOBILE */
  @media (max-width: 480px) {
    .form-container {
      padding: 10px;
    }
  
    .form-intro {
      padding: 15px;
    }
  
    .success-message {
      padding: 35px 20px;
    }
  
    .success-icon {
      width: 60px;
      height: 60px;
      font-size: 32px;
    }
  }