/* Global Reset */
    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
      background: linear-gradient(180deg, #fdfdfd, #f5f7fa);
      color: #1c1c1e;
      line-height: 1.6;
    }

    /* Top Bar */
    .top-bar {
      background: #1d1d1f;
      color: #f5f5f7;
      font-size: 14px;
      padding: 10px 20px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .top-bar a { color: #f5f5f7; margin-left: 15px; transition: opacity 0.3s; }
    .top-bar a:hover { opacity: 0.7; }

    /* Header */
    header {
      background: white;
      padding: 15px 30px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      border-bottom: 0.5px solid #e5e5ea;
    }
    .logo img { height: 70px; }
    nav a {
      color: #1c1c1e;
      font-weight: 500;
      font-size: 15px;
      padding: 8px 14px;
      border-radius: 12px;
      transition: background 0.2s;
    }
    nav a:hover { background: #f0f0f0; }

    /* Login Form */
    .form-container {
      max-width: 400px;
      margin: 80px auto;
      padding: 40px 35px;
      background: #ffffffcc;
      backdrop-filter: blur(12px);
      border-radius: 20px;
      box-shadow: 0 15px 35px rgba(0,0,0,0.08);
      text-align: center;
    }
    .form-container h2 {
      font-size: 28px;
      font-weight: 600;
      margin-bottom: 25px;
      color: #111;
    }
    .form-container label {
      display: block;
      font-size: 14px;
      font-weight: 500;
      margin: 12px 0 6px;
      color: #3a3a3c;
      text-align: left;
    }
    .form-container input,
    .form-container select {
      width: 100%;
      padding: 12px 14px;
      border: 1px solid #d1d1d6;
      border-radius: 12px;
      font-size: 15px;
      outline: none;
      background: #f9f9fa;
      transition: border 0.3s, background 0.3s;
    }
    .form-container input:focus,
    .form-container select:focus {
      border: 1px solid #007aff;
      background: #ffffff;
    }
    .form-container select {
      appearance: none;
      -webkit-appearance: none;
      -moz-appearance: none;
      background-image: url("data:image/svg+xml;utf8,<svg fill='black' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/></svg>");
      background-repeat: no-repeat;
      background-position: right 12px center;
      background-size: 16px;
    }

    /* Button */
    .form-container button {
      width: 100%;
      margin-top: 25px;
      padding: 14px;
      font-size: 16px;
      font-weight: 600;
      border: none;
      border-radius: 14px;
      background: linear-gradient(90deg, #007aff, #0a84ff);
      color: white;
      cursor: pointer;
      transition: transform 0.2s, box-shadow 0.2s;
    }
    .form-container button:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 15px rgba(0,122,255,0.3);
    }

    /* Error Message */
    .error {
      background: #fef2f2;
      border: 1px solid #f5c2c2;
      color: #d32f2f;
      padding: 10px;
      margin-bottom: 15px;
      border-radius: 10px;
      font-size: 14px;
    }

    /* Footer */
    footer {
      margin-top: 60px;
      background: #1d1d1f;
      color: #f5f5f7;
      padding: 30px 20px;
    }
    footer .footer-container { display: flex; flex-wrap: wrap; gap: 20px; }
    footer .column { flex: 1 1 300px; font-size: 14px; }
    footer p { margin-bottom: 8px; }
    footer a { color: #f5f5f7; font-size: 14px; transition: opacity 0.3s; }
    footer a:hover { opacity: 0.7; }
    copyright {
      text-align: center;
      padding: 15px;
      background: #000;
      font-size: 13px;
    }

    /* Responsive */
    @media (max-width: 600px) {
      .form-container { margin: 50px 15px; padding: 30px 20px; }
    }