body {
            font-family: Arial, sans-serif;
            background: linear-gradient(120deg, #8d5507, #a35f0b, #efaf00);
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
        }

        .container {
            background: #fff;
            width: 360px;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.2);
        }

        .logo {
            text-align: center;
            font-size: 28px;
            font-weight: bold;
            color: #203a43;
        }

        .subtitle {
            text-align: center;
            font-size: 14px;
            color: #666;
            margin-bottom: 20px;
        }

        h2 {
            text-align: center;
            color: #2c5364;
            margin-bottom: 15px;
        }

        input {
            width: 100%;
            padding: 10px;
            margin: 7px 0;
            border-radius: 6px;
            border: 1px solid #ccc;
        }

        button {
            width: 100%;
            padding: 10px;
            background: #2c5364;
            color: #fff;
            border: none;
            border-radius: 6px;
            font-size: 16px;
            cursor: pointer;
            margin-top: 10px;
        }

        button:hover {
            background: #203a43;
        }

        .links {
            text-align: center;
            margin-top: 15px;
            font-size: 14px;
        }

        .links a {
            color: #2c5364;
            text-decoration: none;
            cursor: pointer;
        }

        .links a:hover {
            text-decoration: underline;
        }

        .hidden {
            display: none;
        }

        .social-login {
            margin-top: 10px;
        }

        .social-btn {
            width: 100%;
            padding: 10px;
            margin: 6px 0;
            border-radius: 6px;
            border: 1px solid #ccc;
            background: #fff;
            cursor: pointer;
            font-size: 14px;
        }

        .social-btn:hover {
            background: #f2f2f2;
        }

        .google { border-color: #db4437; }
        .microsoft { border-color: #0078d4; }
        .linkedin { border-color: #0a66c2; }

        .divider {
            text-align: center;
            margin: 15px 0;
            font-size: 13px;
            color: #777;
        }
        /* Mensajes de validación */
        .form-msg {
            font-size: 13px;
            padding: 8px 12px;
            border-radius: 6px;
            margin: 6px 0;
            display: none;
        }
        .form-msg.error {
            background: #fee2e2;
            color: #b91c1c;
            display: block;
        }
        .form-msg.success {
            background: #dcfce7;
            color: #15803d;
            display: block;
        }

        input:focus {
            outline: none;
            border-color: #2c5364;
            box-shadow: 0 0 0 2px rgba(44, 83, 100, 0.15);
        }

        .social-btn { color: #333 !important; }