:root {
      --bg: #FAFBFC; 
      --surface: #FFFFFF;
      --ink: #0F172A;
      --ink-soft: #475569;
      --green: #10B981;
      --green-ink: #047857;
      --blue: #3B82F6;
      --blue-ink: #1E40AF;
      --font-display: 'Outfit', sans-serif;
      --font-body: 'DM Sans', sans-serif;
    }
    
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body { 
      font-family: var(--font-body);
      background: var(--bg);
      color: var(--ink);
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 24px;
    }
    
    .logo {
      position: absolute;
      top: 24px;
      left: 24px;
      display: flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
      color: var(--ink);
      font-family: var(--font-display);
      font-weight: 800;
      font-size: 20px;
    }
    
    .logo img { width: 32px; height: auto; }
    
    .container {
      max-width: 600px;
      width: 100%;
      text-align: center;
    }
    
    .back-link {
      display: inline-block;
      margin-bottom: 24px;
      color: var(--ink-soft);
      text-decoration: none;
      font-size: 14px;
      font-weight: 500;
    }
    
    .back-link:hover { color: var(--ink); }
    
    h1 {
      font-family: var(--font-display);
      font-size: 32px;
      font-weight: 700;
      margin-bottom: 12px;
    }
    
    .subtitle {
      color: var(--ink-soft);
      margin-bottom: 40px;
      font-size: 16px;
    }
    
    .cards {
      display: grid;
      grid-template-columns: 1fr;
      gap: 20px;
      margin-bottom: 32px;
    }
    
    .card {
      background: var(--surface);
      border-radius: 16px;
      padding: 24px;
      text-align: left;
      cursor: pointer;
      transition: all 0.2s;
      border: 2px solid #E2E8F0;
      text-decoration: none;
      color: inherit;
      display: block;
    }
    
    .card:hover {
      border-color: var(--green);
      transform: translateY(-3px);
      box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    }
    
    .card-icon {
      width: 60px;
      height: 60px;
      border-radius: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      font-size: 28px;
    }
    
    .card-student .card-icon { background: #D1FAE5; }
    .card-entreprise .card-icon { background: #DBEAFE; }
    
    .card h2 {
      font-family: var(--font-display);
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 8px;
    }
    
    .card p {
      font-size: 15px;
      color: var(--ink-soft);
      line-height: 1.5;
    }
    
    .divider {
      margin: 32px 0;
      border-top: 1px solid #E2E8F0;
      position: relative;
    }
    
    .divider::before {
      content: "ou";
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      background: var(--bg);
      padding: 0 16px;
      color: var(--ink-soft);
      font-size: 14px;
    }
    
    .register-section h3 {
      font-family: var(--font-display);
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 16px;
    }
    
    .register-buttons {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    
    .btn-register {
      padding: 14px 24px;
      border-radius: 10px;
      font-weight: 600;
      text-decoration: none;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      transition: all 0.2s;
      font-size: 14px;
    }
    
    .btn-register-student {
      background: var(--green);
      color: white;
    }
    
    .btn-register-student:hover {
      background: var(--green-ink);
      transform: translateY(-2px);
    }
    
    .btn-register-entreprise {
      background: var(--blue);
      color: white;
    }
    
    .btn-register-entreprise:hover {
      background: var(--blue-ink);
      transform: translateY(-2px);
    }
    
    @media (max-width: 640px) {
      .register-buttons { grid-template-columns: 1fr; }
    }

    .account-msg {
      background: #FEF2F2;
      border: 1.5px solid #FCA5A5;
      color: #991B1B;
      border-radius: 12px;
      padding: 14px 18px;
      font-size: 14.5px;
      line-height: 1.5;
      margin-bottom: 28px;
      text-align: left;
    }